Merge branch 'floatcvt' of https://github.com/rheit/zdoom into floatcvt

# Conflicts:
#	src/r_defs.h

src/actor.h

@@ -580,7 +580,7 @@ public:
 
 	void Serialize (FArchive &arc);
 
-	static AActor *StaticSpawn (PClassActor *type, fixed_t x, fixed_t y, fixed_t z, replace_t allowreplacement, bool SpawningMapThing = false);
+	static AActor *StaticSpawn (PClassActor *type, const DVector3 &pos, replace_t allowreplacement, bool SpawningMapThing = false);
 
 	inline AActor *GetDefault () const
 	{
@@ -742,7 +742,18 @@ public:
 	// What species am I?
 	virtual FName GetSpecies();
 
-	fixed_t GetBobOffset(fixed_t ticfrac=0) const
+	double GetBobOffset(fixed_t ticfrac = 0) const
+	{
+		if (!(flags2 & MF2_FLOATBOB))
+		{
+			return 0;
+		}
+		return BobSin(FloatBobPhase + level.maptime + FIXED2FLOAT(ticfrac));
+	}
+
+
+
+	fixed_t _f_GetBobOffset(fixed_t ticfrac=0) const
 	{
 		 if (!(flags2 & MF2_FLOATBOB))
 		 {
@@ -1123,6 +1134,7 @@ public:
 	struct sector_t	*Sector;
 	subsector_t *		subsector;
 	double			floorz, ceilingz;	// closest together of contacted secs
+	double			dropoffz;		// killough 11/98: the lowest floor over all contacted Sectors.
 
 	inline fixed_t _f_ceilingz()
 	{
@@ -1132,8 +1144,11 @@ public:
 	{
 		return FLOAT2FIXED(floorz);
 	}
+	inline fixed_t _f_dropoffz()
+	{
+		return FLOAT2FIXED(dropoffz);
+	}
 
-	fixed_t			dropoffz;		// killough 11/98: the lowest floor over all contacted Sectors.
 
 	struct sector_t	*floorsector;
 	FTextureID		floorpic;			// contacted sec floorpic
@@ -1190,7 +1205,7 @@ public:
 									// no matter what (even if shot)
 	player_t		*player;		// only valid if type of APlayerPawn
 	TObjPtr<AActor>	LastLookActor;	// Actor last looked for (if TIDtoHate != 0)
-	fixed_t			SpawnPoint[3]; 	// For nightmare respawn
+	DVector3		SpawnPoint; 	// For nightmare respawn
 	WORD			SpawnAngle;
 	int				StartHealth;
 	BYTE			WeaveIndexXY;	// Separated from special2 because it's used by globally accessible functions.
@@ -1275,7 +1290,7 @@ public:
 	FSoundIDNoInit WallBounceSound;
 	FSoundIDNoInit CrushPainSound;
 
-	fixed_t MaxDropOffHeight;
+	double MaxDropOffHeight;
 	double MaxStepHeight;
 
 	fixed_t _f_MaxStepHeight()
@@ -1341,6 +1356,10 @@ public:
 	int GetTics(FState * newstate);
 	bool SetState (FState *newstate, bool nofunction=false);
 	virtual bool UpdateWaterLevel (fixed_t oldz, bool splash=true);
+	bool UpdateWaterLevel(double oldz, bool splash = true)
+	{
+		return UpdateWaterLevel(FLOAT2FIXED(oldz), splash);
+	}
 	bool isFast();
 	bool isSlow();
 	void SetIdle(bool nofunction=false);
@@ -1670,96 +1689,36 @@ public:
 bool P_IsTIDUsed(int tid);
 int P_FindUniqueTID(int start_tid, int limit);
 
-inline AActor *Spawn (PClassActor *type, fixed_t x, fixed_t y, fixed_t z, replace_t allowreplacement)
-{
-	return AActor::StaticSpawn (type, x, y, z, allowreplacement);
-}
+PClassActor *ClassForSpawn(FName classname);
+
 inline AActor *Spawn(PClassActor *type)
 {
-	return AActor::StaticSpawn(type, 0, 0, 0, NO_REPLACE);
-}
-inline AActor *Spawn (PClassActor *type, const fixedvec3 &pos, replace_t allowreplacement)
-{
-	return AActor::StaticSpawn (type, pos.x, pos.y, pos.z, allowreplacement);
+	return AActor::StaticSpawn(type, DVector3(0, 0, 0), NO_REPLACE);
 }
 
 inline AActor *Spawn(PClassActor *type, const DVector3 &pos, replace_t allowreplacement)
 {
-	fixed_t zz;
-	if (pos.Z != ONFLOORZ && pos.Z != ONCEILINGZ && pos.Z != FLOATRANDZ) zz = FLOAT2FIXED(pos.Z);
-	else zz = (int)pos.Z;
-	return Spawn(type, FLOAT2FIXED(pos.X), FLOAT2FIXED(pos.Y), zz, allowreplacement);
+	return AActor::StaticSpawn(type, pos, allowreplacement);
 }
 
-AActor *Spawn (const char *type, fixed_t x, fixed_t y, fixed_t z, replace_t allowreplacement);
-AActor *Spawn (FName classname, fixed_t x, fixed_t y, fixed_t z, replace_t allowreplacement);
-
 inline AActor *Spawn(FName type)
 {
-	return Spawn(type, 0, 0, 0, NO_REPLACE);
-}
-
-inline AActor *Spawn (const char *type, const fixedvec3 &pos, replace_t allowreplacement)
-{
-	return Spawn (type, pos.x, pos.y, pos.z, allowreplacement);
-}
-
-inline AActor *Spawn(const char *type, const DVector3 &pos, replace_t allowreplacement)
-{
-	fixed_t zz;
-	if (pos.Z != ONFLOORZ && pos.Z != ONCEILINGZ && pos.Z != FLOATRANDZ) zz = FLOAT2FIXED(pos.Z);
-	else zz = (int)pos.Z;
-	return Spawn(type, FLOAT2FIXED(pos.X), FLOAT2FIXED(pos.Y), zz, allowreplacement);
-}
-
-inline AActor *Spawn (FName classname, const fixedvec3 &pos, replace_t allowreplacement)
-{
-	return Spawn (classname, pos.x, pos.y, pos.z, allowreplacement);
+	return AActor::StaticSpawn(ClassForSpawn(type), DVector3(0, 0, 0), NO_REPLACE);
 }
 
 inline AActor *Spawn(FName type, const DVector3 &pos, replace_t allowreplacement)
 {
-	fixed_t zz;
-	if (pos.Z != ONFLOORZ && pos.Z != ONCEILINGZ && pos.Z != FLOATRANDZ) zz = FLOAT2FIXED(pos.Z);
-	else zz = (int)pos.Z;
-	return Spawn(type, FLOAT2FIXED(pos.X), FLOAT2FIXED(pos.Y), zz, allowreplacement);
+	return AActor::StaticSpawn(ClassForSpawn(type), pos, allowreplacement);
 }
 
-
-template<class T>
-inline T *Spawn (fixed_t x, fixed_t y, fixed_t z, replace_t allowreplacement)
+template<class T> inline T *Spawn(const DVector3 &pos, replace_t allowreplacement)
 {
-	return static_cast<T *>(AActor::StaticSpawn (RUNTIME_TEMPLATE_CLASS(T), x, y, z, allowreplacement));
+	return static_cast<T *>(AActor::StaticSpawn(RUNTIME_TEMPLATE_CLASS(T), pos, allowreplacement));
 }
 
-template<class T>
-inline T *Spawn (const fixedvec3 &pos, replace_t allowreplacement)
+template<class T> inline T *Spawn()	// for inventory items we do not need coordinates and replacement info.
 {
-	return static_cast<T *>(AActor::StaticSpawn (RUNTIME_TEMPLATE_CLASS(T), pos.x, pos.y, pos.z, allowreplacement));
-}
-
-template<class T>
-inline T *Spawn(const DVector3 &pos, replace_t allowreplacement)
-{
-	fixed_t zz;
-	if (pos.Z != ONFLOORZ && pos.Z != ONCEILINGZ && pos.Z != FLOATRANDZ) zz = FLOAT2FIXED(pos.Z);
-	else zz = (int)pos.Z;
-	return static_cast<T *>(AActor::StaticSpawn(RUNTIME_TEMPLATE_CLASS(T), FLOAT2FIXED(pos.X), FLOAT2FIXED(pos.Y), zz, allowreplacement));
-}
-
-template<class T>
-inline T *Spawn(double x, double y, double z, replace_t allowreplacement)
-{
-	fixed_t zz;
-	if (z != ONFLOORZ && z != ONCEILINGZ && z != FLOATRANDZ) zz = FLOAT2FIXED(z);
-	else zz = (int)z;
-	return static_cast<T *>(AActor::StaticSpawn(RUNTIME_TEMPLATE_CLASS(T), FLOAT2FIXED(x), FLOAT2FIXED(y), zz, allowreplacement));
-}
-
-template<class T>
-inline T *Spawn()	// for inventory items we do not need coordinates and replacement info.
-{
-	return static_cast<T *>(AActor::StaticSpawn(RUNTIME_TEMPLATE_CLASS(T), 0, 0, 0, NO_REPLACE));
+	return static_cast<T *>(AActor::StaticSpawn(RUNTIME_TEMPLATE_CLASS(T), DVector3(0, 0, 0), NO_REPLACE));
 }
 
 inline fixedvec2 Vec2Angle(fixed_t length, angle_t angle)

src/am_map.cpp

@@ -957,10 +957,9 @@ void AM_StaticInit()
 //
 //=============================================================================
 
-void AM_GetPosition(fixed_t &x, fixed_t &y)
+DVector2 AM_GetPosition()
 {
-	x = (m_x + m_w/2) << FRACTOMAPBITS;
-	y = (m_y + m_h/2) << FRACTOMAPBITS;
+	return DVector2((m_x + m_w / 2) / MAPUNIT, (m_y + m_h / 2) / MAPUNIT);
 }
 
 //=============================================================================

src/b_bot.cpp

@@ -269,7 +269,7 @@ void InitBotStuff()
 			AWeapon *w = (AWeapon*)GetDefaultByType(cls);
 			if (w != NULL)
 			{
-				w->MoveCombatDist = botinits[i].movecombatdist;
+				w->MoveCombatDist = botinits[i].movecombatdist/65536.;
 				w->WeaponFlags |= botinits[i].weaponflags;
 				w->ProjectileType = PClass::FindActor(botinits[i].projectile);
 			}

src/b_bot.h

@@ -103,7 +103,7 @@ public:
 	void StartTravel ();
 	void FinishTravel ();
 	bool IsLeader (player_t *player);
-	void SetBodyAt (fixed_t x, fixed_t y, fixed_t z, int hostnum);
+	void SetBodyAt (const DVector3 &pos, int hostnum);
 	fixed_t FakeFire (AActor *source, AActor *dest, ticcmd_t *cmd);
 	bool SafeCheckPosition (AActor *actor, fixed_t x, fixed_t y, FCheckPosition &tm);
 

src/b_func.cpp

@@ -141,8 +141,10 @@ void DBot::Dofire (ticcmd_t *cmd)
 	int aiming_penalty=0; //For shooting at shading target, if screen is red, MAKEME: When screen red.
 	int aiming_value; //The final aiming value.
 	fixed_t dist;
+	double fdist;
 	angle_t an;
 	int m;
+	double fm;
 
 	if (!enemy || !(enemy->flags & MF_SHOOTABLE) || enemy->health <= 0)
 		return;
@@ -221,9 +223,9 @@ void DBot::Dofire (ticcmd_t *cmd)
 		}
 		// prediction aiming
 shootmissile:
-		dist = player->mo->AproxDistance (enemy);
-		m = dist / GetDefaultByType (player->ReadyWeapon->ProjectileType)->_f_speed();
-		bglobal.SetBodyAt (enemy->_f_X() + enemy->_f_velx()*m*2, enemy->_f_Y() + enemy->_f_vely()*m*2, enemy->_f_Z(), 1);
+		fdist = player->mo->Distance2D(enemy);
+		fm = fdist / GetDefaultByType (player->ReadyWeapon->ProjectileType)->Speed;
+		bglobal.SetBodyAt(enemy->Pos() + enemy->Vel.XY() * fm * 2, 1);
 		angle = player->mo->__f_AngleTo(bglobal.body1);
 		if (Check_LOS (enemy, SHOOTFOV))
 			no_fire = false;
@@ -425,28 +427,28 @@ AActor *DBot::Find_enemy ()
 
 
 //Creates a temporary mobj (invisible) at the given location.
-void FCajunMaster::SetBodyAt (fixed_t x, fixed_t y, fixed_t z, int hostnum)
+void FCajunMaster::SetBodyAt (const DVector3 &pos, int hostnum)
 {
 	if (hostnum == 1)
 	{
 		if (body1)
 		{
-			body1->SetOrigin (x, y, z, false);
+			body1->SetOrigin (pos, false);
 		}
 		else
 		{
-			body1 = Spawn ("CajunBodyNode", x, y, z, NO_REPLACE);
+			body1 = Spawn ("CajunBodyNode", pos, NO_REPLACE);
 		}
 	}
 	else if (hostnum == 2)
 	{
 		if (body2)
 		{
-			body2->SetOrigin (x, y, z, false);
+			body2->SetOrigin (pos, false);
 		}
 		else
 		{
-			body2 = Spawn ("CajunBodyNode", x, y, z, NO_REPLACE);
+			body2 = Spawn ("CajunBodyNode", pos, NO_REPLACE);
 		}
 	}
 }
@@ -463,7 +465,7 @@ void FCajunMaster::SetBodyAt (fixed_t x, fixed_t y, fixed_t z, int hostnum)
 //Emulates missile travel. Returns distance travelled.
 fixed_t FCajunMaster::FakeFire (AActor *source, AActor *dest, ticcmd_t *cmd)
 {
-	AActor *th = Spawn ("CajunTrace", source->PosPlusZ(4*8*FRACUNIT), NO_REPLACE);
+	AActor *th = Spawn ("CajunTrace", source->PosPlusZ(4*8.), NO_REPLACE);
 	
 	th->target = source;		// where it came from
 
@@ -485,25 +487,22 @@ fixed_t FCajunMaster::FakeFire (AActor *source, AActor *dest, ticcmd_t *cmd)
 
 angle_t DBot::FireRox (AActor *enemy, ticcmd_t *cmd)
 {
-	fixed_t dist;
+	double dist;
 	angle_t ang;
 	AActor *actor;
-	int m;
+	double m;
 
-	bglobal.SetBodyAt (player->mo->_f_X() + FixedMul(player->mo->_f_velx(), 5*FRACUNIT),
-					   player->mo->_f_Y() + FixedMul(player->mo->_f_vely(), 5*FRACUNIT),
-					   player->mo->_f_Z() + (player->mo->_f_height() / 2), 2);
+	bglobal.SetBodyAt(player->mo->PosPlusZ(player->mo->Height / 2) + player->mo->Vel.XY() * 5, 2);
 
 	actor = bglobal.body2;
 
-	dist = actor->AproxDistance (enemy);
-	if (dist < SAFE_SELF_MISDIST)
+	dist = actor->Distance2D (enemy);
+	if (dist < SAFE_SELF_MISDIST/FRACUNIT)
 		return 0;
 	//Predict.
-	m = (((dist+1)/FRACUNIT) / GetDefaultByName("Rocket")->_f_speed());
+	m = ((dist+1) / GetDefaultByName("Rocket")->Speed);
 
-	bglobal.SetBodyAt (enemy->_f_X() + FixedMul(enemy->_f_velx(), (m+2*FRACUNIT)),
-					   enemy->_f_Y() + FixedMul(enemy->_f_vely(), (m+2*FRACUNIT)), ONFLOORZ, 1);
+	bglobal.SetBodyAt(DVector3((enemy->Pos() + enemy->Vel * (m + 2)), ONFLOORZ), 1);
 	
 	//try the predicted location
 	if (P_CheckSight (actor, bglobal.body1, SF_IGNOREVISIBILITY)) //See the predicted location, so give a test missile

src/b_move.cpp

@@ -297,7 +297,7 @@ bool FCajunMaster::CleanAhead (AActor *thing, fixed_t x, fixed_t y, ticcmd_t *cm
 
 
 			if ( !(thing->flags&(MF_DROPOFF|MF_FLOAT))
-			&& tm._f_floorz() - tm.dropoffz > thing->MaxDropOffHeight )
+			&& tm.floorz - tm.dropoffz > thing->MaxDropOffHeight )
 				return false;       // don't stand over a dropoff
 
 		}

src/b_think.cpp

@@ -171,7 +171,7 @@ void DBot::ThinkForMove (ticcmd_t *cmd)
 		angle = player->mo->__f_AngleTo(enemy);
 
 		if (player->ReadyWeapon == NULL ||
-			player->mo->AproxDistance(enemy) >
+			player->mo->Distance2D(enemy) >
 			player->ReadyWeapon->MoveCombatDist)
 		{
 			// If a monster, use lower speed (just for cooler apperance while strafing down doomed monster)

src/basictypes.h

@@ -1,16 +1,6 @@
 #ifndef __BASICTYPES_H
 #define __BASICTYPES_H
 
-#ifdef _MSC_VER
-typedef __int8					SBYTE;
-typedef unsigned __int8			BYTE;
-typedef __int16					SWORD;
-typedef unsigned __int16		WORD;
-typedef __int32					SDWORD;
-typedef unsigned __int32		uint32;
-typedef __int64					SQWORD;
-typedef unsigned __int64		QWORD;
-#else
 #include <stdint.h>
 
 typedef int8_t					SBYTE;
@@ -21,7 +11,6 @@ typedef int32_t					SDWORD;
 typedef uint32_t				uint32;
 typedef int64_t					SQWORD;
 typedef uint64_t				QWORD;
-#endif
 
 typedef SDWORD					int32;
 typedef float					real32;

src/compatibility.cpp

@@ -312,7 +312,7 @@ void ParseCompatibility()
 				sc.MustGetNumber();
 				CompatParams.Push(sc.Number);
 				sc.MustGetFloat();
-				CompatParams.Push(FLOAT2FIXED(sc.Float));
+				CompatParams.Push(int(sc.Float*256));	// do not use full fixed here so that it can eventually handle larger levels
 			}
 			else if (sc.Compare("setsectortag"))
 			{
@@ -545,7 +545,7 @@ void SetCompatibilityParams()
 					// When this is called, the things haven't been spawned yet so we can alter the position inside the MapThings array.
 					if ((unsigned)CompatParams[i+1] < MapThingsConverted.Size())
 					{
-						MapThingsConverted[CompatParams[i+1]].z = CompatParams[i+2];
+						MapThingsConverted[CompatParams[i+1]].pos.Z = CompatParams[i+2]/256.;
 					}
 					i += 3;
 					break;

src/d_net.cpp

@@ -2321,7 +2321,7 @@ void Net_DoCommand (int type, BYTE **stream, int player)
 					else
 					{
 						const AActor *def = GetDefaultByType (typeinfo);
-						fixedvec3 spawnpos = source->_f_Vec3Angle(def->_f_radius() * 2 + source->_f_radius(), source->_f_angle(), 8 * FRACUNIT);
+						DVector3 spawnpos = source->Vec3Angle(def->radius * 2 + source->radius, source->Angles.Yaw, 8.);
 
 						AActor *spawned = Spawn (typeinfo, spawnpos, ALLOW_REPLACE);
 						if (spawned != NULL)
@@ -2382,8 +2382,7 @@ void Net_DoCommand (int type, BYTE **stream, int player)
 			{
 				if (trace.HitType == TRACE_HitWall)
 				{
-					DVector3 hp(FIXED2DBL(trace.HitPos.x), FIXED2DBL(trace.HitPos.y), FIXED2DBL(trace.HitPos.z));
-					DImpactDecal::StaticCreate (s, hp, trace.Line->sidedef[trace.Side], NULL);
+					DImpactDecal::StaticCreate (s, trace.HitPos, trace.Line->sidedef[trace.Side], NULL);
 				}
 			}
 		}

src/doomdata.h

@@ -346,9 +346,7 @@ struct FDoomEdEntry;
 struct FMapThing
 {
 	int			thingid;
-	fixed_t		x;
-	fixed_t		y;
-	fixed_t		z;
+	DVector3	pos;
 	short		angle;
 	WORD		SkillFilter;
 	WORD		ClassFilter;
@@ -433,7 +431,7 @@ struct FPlayerStart
 
 	FPlayerStart() { }
 	FPlayerStart(const FMapThing *mthing, int pnum)
-	: pos(FIXED2DBL(mthing->x), FIXED2DBL(mthing->y), FIXED2DBL(mthing->z)),
+	: pos(mthing->pos),
 	  angle(mthing->angle),
 	  type(pnum)
 	{ }

src/edata.cpp

@@ -92,7 +92,7 @@ struct EDMapthing
 	int recordnum;
 	int tid;
 	int type;
-	fixed_t height;
+	double height;
 	int args[5];
 	WORD skillfilter;
 	DWORD flags;
@@ -585,7 +585,7 @@ static void parseMapthing(FScanner &sc)
 		{
 			sc.CheckString("=");
 			sc.MustGetFloat();	// no idea if Eternity allows fractional numbers. Better be safe and do it anyway.
-			mt.height = FLOAT2FIXED(sc.Float);
+			mt.height = sc.Float;
 		}
 		else if (sc.Compare("options"))
 		{
@@ -682,7 +682,7 @@ void ProcessEDMapthing(FMapThing *mt, int recordnum)
 	mt->thingid = emt->tid;
 	mt->EdNum = emt->type;
 	mt->info = DoomEdMap.CheckKey(mt->EdNum);
-	mt->z = emt->height;
+	mt->pos.Z = emt->height;
 	memcpy(mt->args, emt->args, sizeof(mt->args));
 	mt->SkillFilter = emt->skillfilter;
 	mt->flags = emt->flags;

src/fragglescript/t_cmd.cpp

@@ -165,7 +165,7 @@ void FS_EmulateCmd(char * string)
 		else if (sc.Compare("viewheight"))
 		{
 			sc.MustGetFloat();
-			double playerviewheight = sc.Float*FRACUNIT;
+			double playerviewheight = sc.Float;
 			for(int i=0;i<MAXPLAYERS;i++)
 			{
 				// No, this is not correct. But this is the way Legacy WADs expect it to be handled!

src/fragglescript/t_func.cpp

@@ -69,14 +69,11 @@
 #include "farchive.h"
 #include "p_setup.h"
 #include "p_spec.h"
+#include "r_utility.h"
 #include "math/cmath.h"
 
 static FRandom pr_script("FScript");
 
-
-#define AngleToFixed(x)  ((((double) x) / ((double) ANG45/45)) * FRACUNIT)
-#define FixedToAngle(x)  ((((double) x) / FRACUNIT) * ANG45/45)
-
 // functions. FParser::SF_ means Script Function not, well.. heh, me
 
 /////////// actually running a function /////////////
@@ -862,7 +859,7 @@ void FParser::SF_Player(void)
 
 void FParser::SF_Spawn(void)
 {
-	int x, y, z;
+	DVector3 pos;
 	PClassActor *pclass;
 	DAngle angle = 0.;
 	
@@ -870,22 +867,22 @@ void FParser::SF_Spawn(void)
 	{
 		if (!(pclass=T_GetMobjType(t_argv[0]))) return;
 		
-		x = fixedvalue(t_argv[1]);
-		y = fixedvalue(t_argv[2]);
+		pos.X = floatvalue(t_argv[1]);
+		pos.Y = floatvalue(t_argv[2]);
 
 		if(t_argc >= 5)
 		{
-			z = fixedvalue(t_argv[4]);
+			pos.Z = floatvalue(t_argv[4]);
 			// [Graf Zahl] added option of spawning with a relative z coordinate
 			if(t_argc > 5)
 			{
-				if (intvalue(t_argv[5])) z+=P_PointInSector(x, y)->floorplane.ZatPoint(x,y);
+				if (intvalue(t_argv[5])) pos.Z += P_PointInSector(pos)->floorplane.ZatPoint(pos);
 			}
 		}
 		else
 		{
 			// Legacy compatibility is more important than correctness.
-			z = ONFLOORZ;// (GetDefaultByType(PClass)->flags & MF_SPAWNCEILING) ? ONCEILINGZ : ONFLOORZ;
+			pos.Z = ONFLOORZ;// (GetDefaultByType(PClass)->flags & MF_SPAWNCEILING) ? ONCEILINGZ : ONFLOORZ;
 		}
 		
 		if(t_argc >= 4)
@@ -894,7 +891,7 @@ void FParser::SF_Spawn(void)
 		}
 		
 		t_return.type = svt_mobj;
-		t_return.value.mobj = Spawn(pclass, x, y, z, ALLOW_REPLACE);
+		t_return.value.mobj = Spawn(pclass, pos, ALLOW_REPLACE);
 
 		if (t_return.value.mobj)		
 		{
@@ -1419,9 +1416,7 @@ void FParser::SF_PointToDist(void)
 		// Doing this in floating point is actually faster with modern computers!
 		double x = floatvalue(t_argv[2]) - floatvalue(t_argv[0]);
 		double y = floatvalue(t_argv[3]) - floatvalue(t_argv[1]);
-   
-		t_return.type = svt_fixed;
-		t_return.value.f = FLOAT2FIXED(g_sqrt(x*x+y*y));
+		t_return.setDouble(g_sqrt(x*x+y*y));
 	}
 }
 
@@ -1463,6 +1458,7 @@ void FParser::SF_SetCamera(void)
 		if (t_argc < 4) newcamera->Angles.Pitch = 0.;
 		else newcamera->Angles.Pitch = clamp(floatvalue(t_argv[3]), -50., 50.) * (20. / 32.);
 		player->camera=newcamera;
+		R_ResetViewInterpolation();
 	}
 }
 
@@ -2175,7 +2171,7 @@ void FParser::SF_OpenDoor(void)
 		if(t_argc > 2) speed = intvalue(t_argv[2]);
 		else speed = 1;    // 1= normal speed
 
-		EV_DoDoor(wait_time? DDoor::doorRaise:DDoor::doorOpen,NULL,NULL,sectag,2*FRACUNIT*clamp(speed,1,127),wait_time,0,0);
+		EV_DoDoor(wait_time ? DDoor::doorRaise : DDoor::doorOpen, NULL, NULL, sectag, 2. * clamp(speed, 1, 127), wait_time, 0, 0);
 	}
 }
 
@@ -2200,7 +2196,7 @@ void FParser::SF_CloseDoor(void)
 		if(t_argc > 1) speed = intvalue(t_argv[1]);
 		else speed = 1;    // 1= normal speed
 		
-		EV_DoDoor(DDoor::doorClose,NULL,NULL,sectag,2*FRACUNIT*clamp(speed,1,127),0,0,0);
+		EV_DoDoor(DDoor::doorClose, NULL, NULL, sectag, 2.*clamp(speed, 1, 127), 0, 0, 0);
 	}
 }
 
@@ -2414,12 +2410,10 @@ void FParser::SF_SetLineTexture(void)
 
 void FParser::SF_Max(void)
 {
-	fixed_t n1, n2;
-	
 	if (CheckArgs(2))
 	{
-		n1 = fixedvalue(t_argv[0]);
-		n2 = fixedvalue(t_argv[1]);
+		auto n1 = fixedvalue(t_argv[0]);
+		auto n2 = fixedvalue(t_argv[1]);
 		
 		t_return.type = svt_fixed;
 		t_return.value.f = (n1 > n2) ? n1 : n2;
@@ -2435,12 +2429,10 @@ void FParser::SF_Max(void)
 
 void FParser::SF_Min(void)
 {
-	fixed_t   n1, n2;
-	
 	if (CheckArgs(1))
 	{
-		n1 = fixedvalue(t_argv[0]);
-		n2 = fixedvalue(t_argv[1]);
+		auto n1 = fixedvalue(t_argv[0]);
+		auto n2 = fixedvalue(t_argv[1]);
 		
 		t_return.type = svt_fixed;
 		t_return.value.f = (n1 < n2) ? n1 : n2;
@@ -2456,11 +2448,10 @@ void FParser::SF_Min(void)
 
 void FParser::SF_Abs(void)
 {
-	fixed_t   n1;
 	
 	if (CheckArgs(1))
 	{
-		n1 = fixedvalue(t_argv[0]);
+		auto n1 = fixedvalue(t_argv[0]);
 		
 		t_return.type = svt_fixed;
 		t_return.value.f = (n1 < 0) ? -n1 : n1;
@@ -3052,173 +3043,57 @@ void FParser::SF_SetWeapon()
 //
 // movecamera(camera, targetobj, targetheight, movespeed, targetangle, anglespeed)
 //
+// This has been completely rewritten in a sane fashion, using actual vector math.
+//
 //==========================================================================
 
 void FParser::SF_MoveCamera(void)
 {
-	fixed_t    x, y, z;  
-	fixed_t    zdist, xydist, movespeed;
-	fixed_t    xstep, ystep, zstep, targetheight;
-	angle_t    anglespeed, anglestep, angledist, targetangle, bigangle, smallangle;
-	DAngle mobjangle;
-	
-	// I have to use floats for the math where angles are divided 
-	// by fixed values.  
-	double     fangledist, fanglestep, fmovestep;
-	int        angledir;  
-	AActor*    target;
-	int        moved;
-	int        quad1, quad2;
-	AActor		* cam;
-	
-	angledir = moved = 0;
-
 	if (CheckArgs(6))
 	{
-		cam = actorvalue(t_argv[0]);
-		target = actorvalue(t_argv[1]);
+		AActor *cam = actorvalue(t_argv[0]);
+		AActor *target = actorvalue(t_argv[1]);
 		if(!cam || !target)
 		{ 
 			script_error("invalid target for camera\n"); return; 
 		}
 
-		DVector2 fdist = cam->Vec2To(target);
-		fixed_t distx = FLOAT2FIXED(fdist.X);
-		fixed_t disty = FLOAT2FIXED(fdist.Y);
-		fixed_t camx = FLOAT2FIXED(cam->X());
-		fixed_t camy = FLOAT2FIXED(cam->Y());
-		fixed_t camz = FLOAT2FIXED(cam->Z());
-
-		
-		targetheight = fixedvalue(t_argv[2]);
-		movespeed    = fixedvalue(t_argv[3]);
-		targetangle  = (angle_t)FixedToAngle(fixedvalue(t_argv[4]));
-		anglespeed   = (angle_t)FixedToAngle(fixedvalue(t_argv[5]));
-		
-		// figure out how big one step will be
-		zdist = targetheight - camz;
-		
-		// Angle checking...  
-		//    90  
-		//   Q1|Q0  
-		//180--+--0  
-		//   Q2|Q3  
-		//    270
-		angle_t camangle = cam->Angles.Yaw.BAMs();
-		quad1 = targetangle / ANG90;
-		quad2 = camangle / ANG90;
-		bigangle = targetangle > camangle ? targetangle : camangle;
-		smallangle = targetangle < camangle ? targetangle : camangle;
-		if((quad1 > quad2 && quad1 - 1 == quad2) || (quad2 > quad1 && quad2 - 1 == quad1) ||
-			quad1 == quad2)
+		double targetheight = floatvalue(t_argv[2]);
+		DVector3 campos = cam->Pos();
+		DVector3 targpos = DVector3(target->Pos(), targetheight);
+		if (campos != targpos)
 		{
-			angledist = bigangle - smallangle;
-			angledir = targetangle > camangle ? 1 : -1;
-		}
-		else
-		{
-			angle_t diff180 = (bigangle + ANG180) - (smallangle + ANG180);
+			DVector3 movement = targpos - campos;
+			double movelen = movement.Length();
+			double movespeed = floatvalue(t_argv[3]);
+			DVector3 movepos;
+			bool finished = (movespeed >= movelen);
+			if (finished) movepos = targpos;
+			else movepos = campos + movement.Resized(movespeed);
 
-			if(quad2 == 3 && quad1 == 0)
+			DAngle targetangle = floatvalue(t_argv[4]);
+			DAngle anglespeed = floatvalue(t_argv[5]);
+			DAngle diffangle = deltaangle(cam->Angles.Yaw, targetangle);
+
+			if (movespeed > 0 && anglespeed == 0.)
 			{
-				angledist = diff180;
-				angledir = 1;
-			}
-			else if(quad1 == 3 && quad2 == 0)
-			{
-				angledist = diff180;
-				angledir = -1;
+				if (!finished) targetangle = diffangle * movespeed / movelen;
 			}
 			else
 			{
-				angledist = bigangle - smallangle;
-				if(angledist > ANG180)
-				{
-					angledist = diff180;
-					angledir = targetangle > camangle ? -1 : 1;
-				}
-				else
-					angledir = targetangle > camangle ? 1 : -1;
+				targetangle = cam->Angles.Yaw + anglespeed;
 			}
-		}
 
-		// set step variables based on distance and speed
-		mobjangle = cam->AngleTo(target);
-		xydist = FLOAT2FIXED(cam->Distance2D(target, true));
-		
-		xstep = (fixed_t)(movespeed * mobjangle.Cos());
-		ystep = (fixed_t)(movespeed * mobjangle.Sin());
-		
-		if(xydist && movespeed)
-			zstep = FixedDiv(zdist, FixedDiv(xydist, movespeed));
-		else
-			zstep = zdist > 0 ? movespeed : -movespeed;
-		
-		if(xydist && movespeed && !anglespeed)
-		{
-			fangledist = ((double)angledist / (ANG45/45));
-			fmovestep = ((double)FixedDiv(xydist, movespeed) / FRACUNIT);
-			if(fmovestep)
-				fanglestep = fangledist / fmovestep;
-			else
-				fanglestep = 360;
-			
-			anglestep =(angle_t) (fanglestep * (ANG45/45));
+			cam->radius = 1 / 8192.;
+			cam->Height = 1 / 8192.;
+			cam->SetOrigin(movepos, true);
+			t_return.value.i = 1;
 		}
-		else
-			anglestep = anglespeed;
-		
-		if(abs(xstep) >= (abs(distx) - 1))
-			x = camx + distx;
 		else
 		{
-			x = camx + xstep;
-			moved = 1;
+			t_return.value.i = 0;
 		}
-		
-		if(abs(ystep) >= (abs(disty) - 1))
-			y = camy + disty;
-		else
-		{
-			y = camy + ystep;
-			moved = 1;
-		}
-		
-		if(abs(zstep) >= (abs(zdist) - 1))
-			z = targetheight;
-		else
-		{
-			z = camz + zstep;
-			moved = 1;
-		}
-		
-		if(anglestep >= angledist)
-			cam->Angles.Yaw = ANGLE2DBL(targetangle);
-		else
-		{
-			if(angledir == 1)
-			{
-				cam->Angles.Yaw += ANGLE2DBL(anglestep);
-				moved = 1;
-			}
-			else if(angledir == -1)
-			{
-				cam->Angles.Yaw -= ANGLE2DBL(anglestep);
-				moved = 1;
-			}
-		}
-
-		cam->radius = 1 / 8192.;
-		cam->Height = 1 / 8192.;
-		if ((x != camx || y != camy) && !P_TryMove(cam, FIXED2FLOAT(x), FIXED2FLOAT(y), true))
-		{
-			Printf("Illegal camera move to (%f, %f)\n", x/65536.f, y/65536.f);
-			return;
-		}
-		cam->SetZ(FIXED2FLOAT(z));
-
 		t_return.type = svt_int;
-		t_return.value.i = moved;
 	}
 }
 
@@ -3340,7 +3215,7 @@ void FParser::SF_FixedValue(void)
 
 void FParser::SF_SpawnExplosion()
 {
-	fixed_t   x, y, z;
+	DVector3 pos;
 	AActor*   spawn;
 	PClassActor * pclass;
 	
@@ -3348,14 +3223,14 @@ void FParser::SF_SpawnExplosion()
 	{
 		if (!(pclass=T_GetMobjType(t_argv[0]))) return;
 		
-		x = fixedvalue(t_argv[1]);
-		y = fixedvalue(t_argv[2]);
+		pos.X = floatvalue(t_argv[1]);
+		pos.Y = floatvalue(t_argv[2]);
 		if(t_argc > 3)
-			z = fixedvalue(t_argv[3]);
+			pos.Z = floatvalue(t_argv[3]);
 		else
-			z = P_PointInSector(x, y)->floorplane.ZatPoint(x,y);
+			pos.Z = P_PointInSector(pos)->floorplane.ZatPoint(pos);
 		
-		spawn = Spawn (pclass, x, y, z, ALLOW_REPLACE);
+		spawn = Spawn (pclass, pos, ALLOW_REPLACE);
 		t_return.type = svt_int;
 		t_return.value.i=0;
 		if (spawn)
@@ -3991,10 +3866,9 @@ void FParser::SF_SetCorona(void)
 		return;
 	}
 	
-	int num = t_argv[0].value.i;    // which corona we want to modify
-	int what = t_argv[1].value.i;   // what we want to modify (type, color, offset,...)
-	int ival = t_argv[2].value.i;   // the value of what we modify
-	double fval = ((double) t_argv[2].value.f / FRACUNIT);
+	int num = intvalue(t_argv[0]);    // which corona we want to modify
+	int what = intvalue(t_argv[1]);   // what we want to modify (type, color, offset,...)
+	double val = floatvalue(t_argv[2]);   // the value of what we modify
 
   	/*
 	switch (what)
@@ -4239,7 +4113,7 @@ void FParser::SF_SpawnShot2(void)
 {
 	AActor *source = NULL;
 	PClassActor * pclass;
-	int z=0;
+	double z = 0;
 
 	// t_argv[0] = type to spawn
 	// t_argv[1] = source mobj, optional, -1 to default
@@ -4247,23 +4121,23 @@ void FParser::SF_SpawnShot2(void)
 
 	if (CheckArgs(2))
 	{
-		if(t_argv[1].type == svt_int && t_argv[1].value.i < 0)
+		if (t_argv[1].type == svt_int && t_argv[1].value.i < 0)
 			source = Script->trigger;
 		else
 			source = actorvalue(t_argv[1]);
 
-		if (t_argc>2) z=fixedvalue(t_argv[2]);
+		if (t_argc > 2) z = floatvalue(t_argv[2]);
 
-		if(!source)	return;
+		if (!source)	return;
 
-		if (!(pclass=T_GetMobjType(t_argv[0]))) return;
+		if (!(pclass = T_GetMobjType(t_argv[0]))) return;
 
 		t_return.type = svt_mobj;
 
-		AActor *mo = Spawn (pclass, source->PosPlusZ(z), ALLOW_REPLACE);
+		AActor *mo = Spawn(pclass, source->PosPlusZ(z), ALLOW_REPLACE);
 		if (mo)
 		{
-			S_Sound (mo, CHAN_VOICE, mo->SeeSound, 1, ATTN_NORM);
+			S_Sound(mo, CHAN_VOICE, mo->SeeSound, 1, ATTN_NORM);
 			mo->target = source;
 			mo->Angles.Yaw = source->Angles.Yaw;
 			mo->Thrust();

src/fragglescript/t_oper.cpp

@@ -360,8 +360,7 @@ void FParser::OPmultiply(svalue_t &result,int start, int n, int stop)
 	// haleyjd: 8-17
 	if(left.type == svt_fixed || right.type == svt_fixed)
 	{
-		result.type = svt_fixed;
-		result.value.f = FixedMul(fixedvalue(left), fixedvalue(right));
+		result.setDouble(floatvalue(left) * floatvalue(right));
 	}
 	else
 	{
@@ -385,9 +384,9 @@ void FParser::OPdivide(svalue_t &result, int start, int n, int stop)
 	// haleyjd: 8-17
 	if(left.type == svt_fixed || right.type == svt_fixed)
 	{
-		fixed_t fr;
+		auto fr = fixedvalue(right);
 		
-		if((fr = fixedvalue(right)) == 0)
+		if(fr == 0)
 			script_error("divide by zero\n");
 		else
 		{
@@ -397,9 +396,9 @@ void FParser::OPdivide(svalue_t &result, int start, int n, int stop)
 	}
 	else
 	{
-		int ir;
+		auto ir = intvalue(right);
 		
-		if(!(ir = intvalue(right)))
+		if(!ir)
 			script_error("divide by zero\n");
 		else
 		{
@@ -509,8 +508,7 @@ void FParser::OPincrement(svalue_t &result, int start, int n, int stop)
 		}
 		else
 		{
-			result.value.f = fixedvalue(result) + FRACUNIT;
-			result.type = svt_fixed;
+			result.setDouble(floatvalue(result)+1);
 			var->SetValue (result);
 		}
     }
@@ -535,8 +533,7 @@ void FParser::OPincrement(svalue_t &result, int start, int n, int stop)
 		}
 		else
 		{
-			newvalue.type = svt_fixed;
-			newvalue.value.f = fixedvalue(result) + FRACUNIT;
+			newvalue.setDouble(floatvalue(result)+1);
 			var->SetValue (newvalue);
 		}
     }
@@ -574,7 +571,7 @@ void FParser::OPdecrement(svalue_t &result, int start, int n, int stop)
 		}
 		else
 		{
-			result.value.f = fixedvalue(result) - FRACUNIT;
+			result.setDouble(floatvalue(result)-1);
 			result.type = svt_fixed;
 			var->SetValue (result);
 		}
@@ -600,8 +597,7 @@ void FParser::OPdecrement(svalue_t &result, int start, int n, int stop)
 		}
 		else
 		{
-			newvalue.type = svt_fixed;
-			newvalue.value.f = fixedvalue(result) - FRACUNIT;
+			newvalue.setDouble(floatvalue(result)-1);
 			var->SetValue (newvalue);
 		}
     }

src/fragglescript/t_parse.cpp

@@ -567,8 +567,7 @@ void FParser::SimpleEvaluate(svalue_t &returnvar, int n)
     case number:
 		if(strchr(Tokens[n], '.'))
 		{
-			returnvar.type = svt_fixed;
-			returnvar.value.f = (fixed_t)(atof(Tokens[n]) * FRACUNIT);
+			returnvar.setDouble(atof(Tokens[n]));
 		}
 		else
 		{

src/fragglescript/t_script.h

@@ -82,15 +82,17 @@ enum
 //
 //
 //==========================================================================
+typedef int fsfix;
 
 struct svalue_t
 {
 	int type;
+
 	FString string;
 	union
 	{
 		int i;
-		fixed_t f;      // haleyjd: 8-17
+		fsfix f;      // haleyjd: 8-17
 		AActor *mobj;
 	} value;
 
@@ -113,7 +115,7 @@ struct svalue_t
 		type = svt_int;
 	}
 
-	void setFixed(fixed_t fp)
+	void setFixed(fsfix fp)
 	{
 		value.f = fp;
 		type = svt_fixed;
@@ -121,13 +123,13 @@ struct svalue_t
 
 	void setDouble(double dp)
 	{
-		value.f = FLOAT2FIXED(dp);
+		value.f = fsfix(dp/65536);
 		type = svt_fixed;
 	}
 };
 
 int intvalue(const svalue_t & v);
-fixed_t fixedvalue(const svalue_t & v);
+fsfix fixedvalue(const svalue_t & v);
 double floatvalue(const svalue_t & v);
 const char *stringvalue(const svalue_t & v);
 AActor *actorvalue(const svalue_t &svalue);
@@ -171,7 +173,7 @@ public:
 	union value_t
 	{
 		SDWORD i;
-		fixed_t fixed;          // haleyjd: fixed-point
+		fsfix fixed;          // haleyjd: fixed-point
 		
 		// the following are only used in the global script so we don't need to bother with them
 		// when serializing variables.

src/fragglescript/t_variable.cpp

@@ -66,7 +66,7 @@
 int intvalue(const svalue_t &v)
 {
 	return (v.type == svt_string ? atoi(v.string) :       
-	v.type == svt_fixed ? (int)(v.value.f / FRACUNIT) : 
+	v.type == svt_fixed ? (int)(v.value.f / 65536.) : 
 	v.type == svt_mobj ? -1 : v.value.i );
 }
 
@@ -76,11 +76,11 @@ int intvalue(const svalue_t &v)
 //
 //==========================================================================
 
-fixed_t fixedvalue(const svalue_t &v)
+fsfix fixedvalue(const svalue_t &v)
 {
 	return (v.type == svt_fixed ? v.value.f :
-	v.type == svt_string ? (fixed_t)(atof(v.string) * FRACUNIT) :
-	v.type == svt_mobj ? -1*FRACUNIT : v.value.i * FRACUNIT );
+	v.type == svt_string ? (fsfix)(atof(v.string) * 65536.) :
+	v.type == svt_mobj ? -65536 : v.value.i * 65536 );
 }
 
 //==========================================================================
@@ -93,7 +93,7 @@ double floatvalue(const svalue_t &v)
 {
 	return 
 		v.type == svt_string ? atof(v.string) :       
-		v.type == svt_fixed ? FIXED2DBL(v.value.f) : 
+		v.type == svt_fixed ? v.value.f * 65536. : 
 		v.type == svt_mobj ? -1. : (double)v.value.i;
 }
 
@@ -118,7 +118,7 @@ const char *stringvalue(const svalue_t & v)
 		
 	case svt_fixed:
 		{
-			double val = ((double)v.value.f) / FRACUNIT;
+			double val = v.value.f / 65536.;
 			mysnprintf(buffer, countof(buffer), "%g", val);
 			return buffer;
 		}

src/g_level.h

@@ -545,30 +545,31 @@ void G_ClearHubInfo();
 
 enum ESkillProperty
 {
-	SKILLP_AmmoFactor,
-	SKILLP_DropAmmoFactor,
 	SKILLP_FastMonsters,
 	SKILLP_Respawn,
 	SKILLP_RespawnLimit,
-	SKILLP_Aggressiveness,
 	SKILLP_DisableCheats,
 	SKILLP_AutoUseHealth,
 	SKILLP_SpawnFilter,
 	SKILLP_EasyBossBrain,
 	SKILLP_ACSReturn,
-	SKILLP_MonsterHealth,
-	SKILLP_FriendlyHealth,
 	SKILLP_NoPain,
-	SKILLP_ArmorFactor,
-	SKILLP_HealthFactor,
 	SKILLP_EasyKey,
 	SKILLP_SlowMonsters,
 	SKILLP_Infight,
 };
 enum EFSkillProperty	// floating point properties
 {
+	SKILLP_AmmoFactor,
+	SKILLP_DropAmmoFactor,
+	SKILLP_ArmorFactor,
+	SKILLP_HealthFactor,
 	SKILLP_DamageFactor,
+	SKILLP_Aggressiveness,
+	SKILLP_MonsterHealth,
+	SKILLP_FriendlyHealth,
 };
+
 int G_SkillProperty(ESkillProperty prop);
 double G_SkillProperty(EFSkillProperty prop);
 const char * G_SkillName();
@@ -580,8 +581,11 @@ typedef TMap<FName, FName> SkillActorReplacement;
 struct FSkillInfo
 {
 	FName Name;
-	fixed_t AmmoFactor, DoubleAmmoFactor, DropAmmoFactor;
+	double AmmoFactor, DoubleAmmoFactor, DropAmmoFactor;
 	double DamageFactor;
+	double ArmorFactor;
+	double HealthFactor;
+
 	bool FastMonsters;
 	bool SlowMonsters;
 	bool DisableCheats;
@@ -591,7 +595,7 @@ struct FSkillInfo
 	bool EasyKey;
 	int RespawnCounter;
 	int RespawnLimit;
-	fixed_t Aggressiveness;
+	double Aggressiveness;
 	int SpawnFilter;
 	int ACSReturn;
 	FString MenuName;
@@ -603,12 +607,10 @@ struct FSkillInfo
 	FString TextColor;
 	SkillActorReplacement Replace;
 	SkillActorReplacement Replaced;
-	fixed_t MonsterHealth;
-	fixed_t FriendlyHealth;
+	double MonsterHealth;
+	double FriendlyHealth;
 	bool NoPain;
 	int Infighting;
-	fixed_t ArmorFactor;
-	fixed_t HealthFactor;
 
 	FSkillInfo() {}
 	FSkillInfo(const FSkillInfo &other)

src/g_shared/a_action.cpp

@@ -286,7 +286,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_FreezeDeathChunks)
 	// with no relation to the size of the self shattering. I think it should
 	// base the number of shards on the size of the dead thing, so bigger
 	// things break up into more shards than smaller things.
-	// An actor with _f_radius() 20 and height 64 creates ~40 chunks.
+	// An actor with radius 20 and height 64 creates ~40 chunks.
 	numChunks = MAX<int>(4, int(self->radius * self->Height)/32);
 	i = (pr_freeze.Random2()) % (numChunks/4);
 	for (i = MAX (24, numChunks + i); i >= 0; i--)

src/g_shared/a_armor.cpp

@@ -96,13 +96,13 @@ bool ABasicArmor::HandlePickup (AInventory *item)
 	{
 		ABasicArmorBonus *armor = static_cast<ABasicArmorBonus*>(item);
 
-		armor->SaveAmount = FixedMul(armor->SaveAmount, G_SkillProperty(SKILLP_ArmorFactor));
+		armor->SaveAmount = int(armor->SaveAmount * G_SkillProperty(SKILLP_ArmorFactor));
 	}
 	else if (item->IsKindOf(RUNTIME_CLASS(ABasicArmorPickup)) && !(item->ItemFlags & IF_IGNORESKILL))
 	{
 		ABasicArmorPickup *armor = static_cast<ABasicArmorPickup*>(item);
 
-		armor->SaveAmount = FixedMul(armor->SaveAmount, G_SkillProperty(SKILLP_ArmorFactor));
+		armor->SaveAmount = int(armor->SaveAmount * G_SkillProperty(SKILLP_ArmorFactor));
 	}
 	if (Inventory != NULL)
 	{
@@ -216,7 +216,7 @@ AInventory *ABasicArmorPickup::CreateCopy (AActor *other)
 
 	if (!(ItemFlags & IF_IGNORESKILL))
 	{
-		SaveAmount = FixedMul(SaveAmount, G_SkillProperty(SKILLP_ArmorFactor));
+		SaveAmount = int(SaveAmount * G_SkillProperty(SKILLP_ArmorFactor));
 	}
 
 	copy->SavePercent = SavePercent;
@@ -298,7 +298,7 @@ AInventory *ABasicArmorBonus::CreateCopy (AActor *other)
 
 	if (!(ItemFlags & IF_IGNORESKILL))
 	{
-		SaveAmount = FixedMul(SaveAmount, G_SkillProperty(SKILLP_ArmorFactor));
+		SaveAmount = int(SaveAmount * G_SkillProperty(SKILLP_ArmorFactor));
 	}
 
 	copy->SavePercent = SavePercent;

src/g_shared/a_artifacts.h

@@ -91,8 +91,6 @@ protected:
 	void DoEffect ();
 	void EndEffect ();
 	int AlterWeaponSprite (visstyle_t *vis);
-//	FRenderStyle OwnersNormalStyle;
-//	fixed_t OwnersNormalAlpha;
 };
 
 class APowerIronFeet : public APowerup

src/g_shared/a_bridge.cpp

@@ -9,7 +9,7 @@ static FRandom pr_orbit ("Orbit");
 
 // Custom bridge --------------------------------------------------------
 /*
-	args[0]: Bridge _f_radius(), in mapunits
+	args[0]: Bridge radius, in mapunits
 	args[1]: Bridge height, in mapunits
 	args[2]: Amount of bridge balls (if 0: Doom bridge)
 	args[3]: Rotation speed of bridge balls, in byte angle per seconds, sorta:

src/g_shared/a_decals.cpp

@@ -769,28 +769,26 @@ DBaseDecal *ShootDecal(const FDecalTemplate *tpl, AActor *basisactor, sector_t *
 	DBaseDecal *decal;
 	side_t *wall;
 
-	Trace(FLOAT2FIXED(x), FLOAT2FIXED(y), FLOAT2FIXED(z), sec,
-		FLOAT2FIXED(angle.Cos()), FLOAT2FIXED(angle.Sin()), 0,
-		FLOAT2FIXED(tracedist), 0, 0, NULL, trace, TRACE_NoSky);
+	Trace(DVector3(x,y,z), sec, DVector3(angle.ToVector(), 0), tracedist, 0, 0, NULL, trace, TRACE_NoSky);
 
 	if (trace.HitType == TRACE_HitWall)
 	{
 		if (permanent)
 		{
-			decal = new DBaseDecal(FIXED2DBL(trace.HitPos.z));
+			decal = new DBaseDecal(trace.HitPos.Z);
 			wall = trace.Line->sidedef[trace.Side];
-			decal->StickToWall(wall, FIXED2DBL(trace.HitPos.x), FIXED2DBL(trace.HitPos.y), trace.ffloor);
+			decal->StickToWall(wall, trace.HitPos.X, trace.HitPos.Y, trace.ffloor);
 			tpl->ApplyToDecal(decal, wall);
 			// Spread decal to nearby walls if it does not all fit on this one
 			if (cl_spreaddecals)
 			{
-				decal->Spread(tpl, wall, FIXED2DBL(trace.HitPos.x), FIXED2DBL(trace.HitPos.y), FIXED2DBL(trace.HitPos.z), trace.ffloor);
+				decal->Spread(tpl, wall,  trace.HitPos.X, trace.HitPos.Y, trace.HitPos.Z, trace.ffloor);
 			}
 			return decal;
 		}
 		else
 		{
-			return DImpactDecal::StaticCreate(tpl, DVector3(FIXED2DBL(trace.HitPos.x), FIXED2DBL(trace.HitPos.y), FIXED2DBL(trace.HitPos.z)), trace.Line->sidedef[trace.Side], NULL);
+			return DImpactDecal::StaticCreate(tpl, trace.HitPos, trace.Line->sidedef[trace.Side], NULL);
 		}
 	}
 	return NULL;

src/g_shared/a_fastprojectile.cpp

@@ -22,13 +22,11 @@ IMPLEMENT_CLASS(AFastProjectile)
 void AFastProjectile::Tick ()
 {
 	int i;
-	fixed_t xfrac;
-	fixed_t yfrac;
-	fixed_t zfrac;
+	DVector3 frac;
 	int changexy;
 
 	ClearInterpolation();
-	fixed_t oldz = _f_Z();
+	double oldz = Z();
 
 	if (!(flags5 & MF5_NOTIMEFREEZE))
 	{
@@ -43,26 +41,22 @@ void AFastProjectile::Tick ()
 	// [RH] Ripping is a little different than it was in Hexen
 	FCheckPosition tm(!!(flags2 & MF2_RIP));
 
-	int shift = 3;
 	int count = 8;
-	if (_f_radius() > 0)
+	if (radius > 0)
 	{
-		while ( ((abs(_f_velx()) >> shift) > _f_radius()) || ((abs(_f_vely()) >> shift) > _f_radius()))
+		while ( fabs(Vel.X) > radius * count || fabs(Vel.Y) > radius * count)
 		{
 			// we need to take smaller steps.
-			shift++;
-			count<<=1;
+			count += count;
 		}
 	}
 
 	// Handle movement
 	if (!Vel.isZero() || (Z() != floorz))
 	{
-		xfrac = _f_velx() >> shift;
-		yfrac = _f_vely() >> shift;
-		zfrac = _f_velz() >> shift;
-		changexy = xfrac || yfrac;
-		int ripcount = count >> 3;
+		frac = Vel / count;
+		changexy = frac.X != 0 || frac.Y != 0;
+		int ripcount = count / 8;
 		for (i = 0; i < count; i++)
 		{
 			if (changexy)
@@ -72,14 +66,14 @@ void AFastProjectile::Tick ()
 					tm.LastRipped.Clear();	// [RH] Do rip damage each step, like Hexen
 				}
 				
-				if (!P_TryMove (this, _f_X() + xfrac,_f_Y() + yfrac, true, NULL, tm))
+				if (!P_TryMove (this, Pos() + frac, true, NULL, tm))
 				{ // Blocked move
 					if (!(flags3 & MF3_SKYEXPLODE))
 					{
 						if (tm.ceilingline &&
 							tm.ceilingline->backsector &&
 							tm.ceilingline->backsector->GetTexture(sector_t::ceiling) == skyflatnum &&
-							_f_Z() >= tm.ceilingline->backsector->ceilingplane.ZatPoint(PosRelative(tm.ceilingline)))
+							Z() >= tm.ceilingline->backsector->ceilingplane.ZatPointF(PosRelative(tm.ceilingline)))
 						{
 							// Hack to prevent missiles exploding against the sky.
 							// Does not handle sky floors.
@@ -98,10 +92,10 @@ void AFastProjectile::Tick ()
 					return;
 				}
 			}
-			_f_AddZ(zfrac);
+			AddZ(frac.Z);
 			UpdateWaterLevel (oldz);
-			oldz = _f_Z();
-			if (Z() <= floorz)
+			oldz = Z();
+			if (oldz <= floorz)
 			{ // Hit the floor
 
 				if (floorpic == skyflatnum && !(flags3 & MF3_SKYEXPLODE))

src/g_shared/a_movingcamera.cpp

@@ -298,7 +298,7 @@ void APathFollower::Tick ()
 		if (CurrNode->args[2])
 		{
 			HoldTime = level.time + CurrNode->args[2] * TICRATE / 8;
-			SetXYZ(CurrNode->_f_X(), CurrNode->_f_Y(), CurrNode->_f_Z());
+			SetXYZ(CurrNode->Pos());
 		}
 	}
 
@@ -352,37 +352,32 @@ void APathFollower::NewNode ()
 
 bool APathFollower::Interpolate ()
 {
-	fixed_t dx = 0, dy = 0, dz = 0;
+	DVector3 dpos(0, 0, 0);
 
 	if ((args[2] & 8) && Time > 0.f)
 	{
-		dx = _f_X();
-		dy = _f_Y();
-		dz = _f_Z();
+		dpos = Pos();
 	}
 
 	if (CurrNode->Next==NULL) return false;
 
 	UnlinkFromWorld ();
-	fixed_t x, y, z;
+	DVector3 newpos;
 	if (args[2] & 1)
 	{	// linear
-		x = FLOAT2FIXED(Lerp (FIXED2DBL(CurrNode->_f_X()), FIXED2DBL(CurrNode->Next->_f_X())));
-		y = FLOAT2FIXED(Lerp (FIXED2DBL(CurrNode->_f_Y()), FIXED2DBL(CurrNode->Next->_f_Y())));
-		z = FLOAT2FIXED(Lerp (FIXED2DBL(CurrNode->_f_Z()), FIXED2DBL(CurrNode->Next->_f_Z())));
+		newpos.X = Lerp(CurrNode->X(), CurrNode->Next->X());
+		newpos.Y = Lerp(CurrNode->Y(), CurrNode->Next->Y());
+		newpos.Z = Lerp(CurrNode->Z(), CurrNode->Next->Z());
 	}
 	else
 	{	// spline
 		if (CurrNode->Next->Next==NULL) return false;
 
-		x = FLOAT2FIXED(Splerp (FIXED2DBL(PrevNode->_f_X()), FIXED2DBL(CurrNode->_f_X()),
-								FIXED2DBL(CurrNode->Next->_f_X()), FIXED2DBL(CurrNode->Next->Next->_f_X())));
-		y = FLOAT2FIXED(Splerp (FIXED2DBL(PrevNode->_f_Y()), FIXED2DBL(CurrNode->_f_Y()),
-								FIXED2DBL(CurrNode->Next->_f_Y()), FIXED2DBL(CurrNode->Next->Next->_f_Y())));
-		z = FLOAT2FIXED(Splerp (FIXED2DBL(PrevNode->_f_Z()), FIXED2DBL(CurrNode->_f_Z()),
-								FIXED2DBL(CurrNode->Next->_f_Z()), FIXED2DBL(CurrNode->Next->Next->_f_Z())));
+		newpos.X = Splerp(PrevNode->X(), CurrNode->X(), CurrNode->Next->X(), CurrNode->Next->Next->X());
+		newpos.X = Splerp(PrevNode->Y(), CurrNode->Y(), CurrNode->Next->Y(), CurrNode->Next->Next->Y());
+		newpos.X = Splerp(PrevNode->Z(), CurrNode->Z(), CurrNode->Next->Z(), CurrNode->Next->Next->Z());
 	}
-	SetXYZ(x, y, z);
+	SetXYZ(newpos);
 	LinkToWorld ();
 
 	if (args[2] & 6)
@@ -391,46 +386,35 @@ bool APathFollower::Interpolate ()
 		{
 			if (args[2] & 1)
 			{ // linear
-				dx = CurrNode->Next->_f_X() - CurrNode->_f_X();
-				dy = CurrNode->Next->_f_Y() - CurrNode->_f_Y();
-				dz = CurrNode->Next->_f_Z() - CurrNode->_f_Z();
+				dpos.X = CurrNode->Next->X() - CurrNode->X();
+				dpos.Y = CurrNode->Next->Y() - CurrNode->Y();
+				dpos.Z = CurrNode->Next->Z() - CurrNode->Z();
 			}
 			else if (Time > 0.f)
 			{ // spline
-				dx = x - dx;
-				dy = y - dy;
-				dz = z - dz;
+				dpos = newpos - dpos;
 			}
 			else
 			{
 				int realarg = args[2];
 				args[2] &= ~(2|4|8);
 				Time += 0.1f;
-				dx = x;
-				dy = y;
-				dz = z;
+				dpos = newpos;
 				Interpolate ();
 				Time -= 0.1f;
 				args[2] = realarg;
-				dx = x - dx;
-				dy = y - dy;
-				dz = z - dz;
-				x -= dx;
-				y -= dy;
-				z -= dz;
-				SetXYZ(x, y, z);
+				dpos = newpos - dpos;
+				newpos -= dpos;
+				SetXYZ(newpos);
 			}
 			if (args[2] & 2)
 			{ // adjust yaw
-				Angles.Yaw = VecToAngle(dx, dy);
+				Angles.Yaw = dpos.Angle();
 			}
 			if (args[2] & 4)
 			{ // adjust pitch; use floats for precision
-				double fdx = FIXED2DBL(dx);
-				double fdy = FIXED2DBL(dy);
-				double fdz = FIXED2DBL(-dz);
-				double dist = g_sqrt (fdx*fdx + fdy*fdy);
-				Angles.Pitch = dist != 0.f ? VecToAngle(dist, fdz) : 0.;
+				double dist = dpos.XY().Length();
+				Angles.Pitch = dist != 0.f ? VecToAngle(dist, -dpos.Z) : 0.;
 			}
 		}
 		else
@@ -517,11 +501,11 @@ bool AActorMover::Interpolate ()
 
 	if (Super::Interpolate ())
 	{
-		fixed_t savedz = tracer->_f_Z();
-		tracer->_f_SetZ(_f_Z());
-		if (!P_TryMove (tracer, _f_X(), _f_Y(), true))
+		double savedz = tracer->Z();
+		tracer->SetZ(Z());
+		if (!P_TryMove (tracer, Pos(), true))
 		{
-			tracer->_f_SetZ(savedz);
+			tracer->SetZ(savedz);
 			return false;
 		}
 
@@ -636,12 +620,10 @@ bool AMovingCamera::Interpolate ()
 		Angles.Yaw = AngleTo(tracer, true);
 
 		if (args[2] & 4)
-		{ // Also aim camera's pitch; use floats for precision
-			double dx = FIXED2DBL(_f_X() - tracer->_f_X());
-			double dy = FIXED2DBL(_f_Y() - tracer->_f_Y());
-			double dz = FIXED2DBL(_f_Z() - tracer->_f_Z() - tracer->_f_height()/2);
-			double dist = g_sqrt (dx*dx + dy*dy);
-			Angles.Pitch = dist != 0.f ? VecToAngle(dist, dz) : 0.;
+		{ // Also aim camera's pitch;
+			DVector3 diff = Pos() - tracer->PosPlusZ(tracer->Height / 2);
+			double dist = diff.XY().Length();
+			Angles.Pitch = dist != 0.f ? VecToAngle(dist, diff.Z) : 0.;
 		}
 
 		return true;

src/g_shared/a_pickups.cpp

@@ -141,7 +141,7 @@ bool AAmmo::HandlePickup (AInventory *item)
 
 			if (!(item->ItemFlags & IF_IGNORESKILL))
 			{ // extra ammo in baby mode and nightmare mode
-				receiving = FixedMul(receiving, G_SkillProperty(SKILLP_AmmoFactor));
+				receiving = int(receiving * G_SkillProperty(SKILLP_AmmoFactor));
 			}
 			int oldamount = Amount;
 
@@ -193,7 +193,7 @@ AInventory *AAmmo::CreateCopy (AActor *other)
 	// extra ammo in baby mode and nightmare mode
 	if (!(ItemFlags&IF_IGNORESKILL))
 	{
-		amount = FixedMul(amount, G_SkillProperty(SKILLP_AmmoFactor));
+		amount = int(amount * G_SkillProperty(SKILLP_AmmoFactor));
 	}
 
 	if (GetClass()->ParentClass != RUNTIME_CLASS(AAmmo) && GetClass() != RUNTIME_CLASS(AAmmo))
@@ -298,7 +298,7 @@ bool P_GiveBody (AActor *actor, int num, int max)
 		{
 			if (player->health < max)
 			{
-				num = FixedMul(num, G_SkillProperty(SKILLP_HealthFactor));
+				num = int(num * G_SkillProperty(SKILLP_HealthFactor));
 				if (num < 1) num = 1;
 				player->health += num;
 				if (player->health > max)
@@ -413,20 +413,17 @@ DEFINE_ACTION_FUNCTION(AActor, A_RestoreSpecialPosition)
 	PARAM_ACTION_PROLOGUE;
 
 	// Move item back to its original location
-	fixed_t _x, _y;
-
-	_x = self->SpawnPoint[0];
-	_y = self->SpawnPoint[1];
+	DVector2 sp = self->SpawnPoint;
 
 	self->UnlinkFromWorld();
-	self->SetXY(_x, _y);
+	self->SetXY(sp);
 	self->LinkToWorld(true);
-	self->_f_SetZ(self->Sector->floorplane.ZatPoint(_x, _y));
+	self->SetZ(self->Sector->floorplane.ZatPoint(sp));
 	P_FindFloorCeiling(self, FFCF_ONLYSPAWNPOS | FFCF_NOPORTALS);	// no portal checks here so that things get spawned in this sector.
 
 	if (self->flags & MF_SPAWNCEILING)
 	{
-		self->_f_SetZ(self->_f_ceilingz() - self->_f_height() - self->SpawnPoint[2]);
+		self->SetZ(self->ceilingz - self->Height - self->SpawnPoint.Z);
 	}
 	else if (self->flags2 & MF2_SPAWNFLOAT)
 	{
@@ -443,7 +440,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_RestoreSpecialPosition)
 	}
 	else
 	{
-		self->_f_SetZ(self->SpawnPoint[2] + self->_f_floorz());
+		self->SetZ(self->SpawnPoint.Z + self->floorz);
 	}
 	// Redo floor/ceiling check, in case of 3D floors and portals
 	P_FindFloorCeiling(self, FFCF_SAMESECTOR | FFCF_ONLY3DFLOORS | FFCF_3DRESTRICT);
@@ -790,7 +787,7 @@ AInventory *AInventory::CreateTossable ()
 		flags &= ~(MF_SPECIAL|MF_SOLID);
 		return this;
 	}
-	copy = static_cast<AInventory *>(Spawn (GetClass(), Owner->_f_Pos(), NO_REPLACE));
+	copy = static_cast<AInventory *>(Spawn (GetClass(), Owner->Pos(), NO_REPLACE));
 	if (copy != NULL)
 	{
 		copy->MaxAmount = MaxAmount;
@@ -1354,7 +1351,7 @@ bool AInventory::DoRespawn ()
 		if (spot != NULL) 
 		{
 			SetOrigin (spot->Pos(), false);
-			_f_SetZ(_f_floorz());
+			SetZ(floorz);
 		}
 	}
 	return true;
@@ -1856,7 +1853,7 @@ AInventory *ABackpackItem::CreateCopy (AActor *other)
 			// extra ammo in baby mode and nightmare mode
 			if (!(ItemFlags&IF_IGNORESKILL))
 			{
-				amount = FixedMul(amount, G_SkillProperty(SKILLP_AmmoFactor));
+				amount = int(amount * G_SkillProperty(SKILLP_AmmoFactor));
 			}
 			if (amount < 0) amount = 0;
 			if (ammo == NULL)
@@ -1919,7 +1916,7 @@ bool ABackpackItem::HandlePickup (AInventory *item)
 					// extra ammo in baby mode and nightmare mode
 					if (!(item->ItemFlags&IF_IGNORESKILL))
 					{
-						amount = FixedMul(amount, G_SkillProperty(SKILLP_AmmoFactor));
+						amount = int(amount * G_SkillProperty(SKILLP_AmmoFactor));
 					}
 					probe->Amount += amount;
 					if (probe->Amount > probe->MaxAmount && !sv_unlimited_pickup)

src/g_shared/a_pickups.h

@@ -46,7 +46,7 @@ private:
 	struct WeaponInfo
 	{
 		PClassWeapon *Type;
-		fixed_t Position;
+		int Position;
 	};
 	void SetInitialPositions();
 	void Sort();
@@ -274,7 +274,7 @@ public:
 	virtual void ReplaceClassRef(PClass *oldclass, PClass *newclass);
 
 	int SlotNumber;
-	fixed_t SlotPriority;
+	int SlotPriority;
 };
 
 class AWeapon : public AInventory
@@ -288,18 +288,18 @@ public:
 	int MinAmmo1, MinAmmo2;					// Minimum ammo needed to switch to this weapon
 	int AmmoUse1, AmmoUse2;					// How much ammo to use with each shot
 	int Kickback;
-	fixed_t YAdjust;						// For viewing the weapon fullscreen
+	float YAdjust;							// For viewing the weapon fullscreen (visual only so no need to be a double)
 	FSoundIDNoInit UpSound, ReadySound;		// Sounds when coming up and idle
 	PClassWeapon *SisterWeaponType;			// Another weapon to pick up with this one
 	PClassActor *ProjectileType;			// Projectile used by primary attack
 	PClassActor *AltProjectileType;			// Projectile used by alternate attack
 	int SelectionOrder;						// Lower-numbered weapons get picked first
 	int MinSelAmmo1, MinSelAmmo2;			// Ignore in BestWeapon() if inadequate ammo
-	fixed_t MoveCombatDist;					// Used by bots, but do they *really* need it?
+	double MoveCombatDist;					// Used by bots, but do they *really* need it?
 	int ReloadCounter;						// For A_CheckForReload
-	int BobStyle;							// [XA] Bobbing style. Defines type of bobbing (e.g. Normal, Alpha)
-	fixed_t BobSpeed;						// [XA] Bobbing speed. Defines how quickly a weapon bobs.
-	fixed_t BobRangeX, BobRangeY;			// [XA] Bobbing range. Defines how far a weapon bobs in either direction.
+	int BobStyle;							// [XA] Bobbing style. Defines type of bobbing (e.g. Normal, Alpha)  (visual only so no need to be a double)
+	float BobSpeed;							// [XA] Bobbing speed. Defines how quickly a weapon bobs.
+	float BobRangeX, BobRangeY;				// [XA] Bobbing range. Defines how far a weapon bobs in either direction.
 
 	// In-inventory instance variables
 	TObjPtr<AAmmo> Ammo1, Ammo2;
@@ -395,7 +395,7 @@ public:
 	bool TryPickup(AActor *&toucher);
 	void Serialize(FArchive &arc);
 
-	fixed_t DropAmmoFactor;
+	double DropAmmoFactor;
 };
 
 

src/g_shared/a_quake.cpp

@@ -35,25 +35,24 @@ DEarthquake::DEarthquake()
 //
 //==========================================================================
 
-DEarthquake::DEarthquake (AActor *center, int intensityX, int intensityY, int intensityZ, int duration,
-						  int damrad, int tremrad, FSoundID quakesound, int flags, 
-						  double waveSpeedX, double waveSpeedY, double waveSpeedZ)
-						  : DThinker(STAT_EARTHQUAKE)
+DEarthquake::DEarthquake(AActor *center, int intensityX, int intensityY, int intensityZ, int duration,
+	int damrad, int tremrad, FSoundID quakesound, int flags,
+	double waveSpeedX, double waveSpeedY, double waveSpeedZ, int falloff, int highpoint)
+	: DThinker(STAT_EARTHQUAKE)
 {
 	m_QuakeSFX = quakesound;
 	m_Spot = center;
 	// Radii are specified in tile units (64 pixels)
-	m_DamageRadius = damrad << FRACBITS;
-	m_TremorRadius = tremrad << FRACBITS;
-	m_IntensityX = intensityX << FRACBITS;
-	m_IntensityY = intensityY << FRACBITS;
-	m_IntensityZ = intensityZ << FRACBITS;
+	m_DamageRadius = damrad;
+	m_TremorRadius = tremrad;
+	m_Intensity = DVector3(intensityX, intensityY, intensityZ);
 	m_CountdownStart = duration;
 	m_Countdown = duration;
 	m_Flags = flags;
-	m_WaveSpeedX = (float)waveSpeedX;
-	m_WaveSpeedY = (float)waveSpeedY;
-	m_WaveSpeedZ = (float)waveSpeedZ;
+	m_WaveSpeed = DVector3(waveSpeedX, waveSpeedY, waveSpeedZ);
+	m_Falloff = falloff;
+	m_Highpoint = highpoint;
+	m_MiniCount = highpoint;
 }
 
 //==========================================================================
@@ -65,38 +64,11 @@ DEarthquake::DEarthquake (AActor *center, int intensityX, int intensityY, int in
 void DEarthquake::Serialize (FArchive &arc)
 {
 	Super::Serialize (arc);
-	arc << m_Spot << m_IntensityX << m_Countdown
+	arc << m_Spot << m_Intensity << m_Countdown
 		<< m_TremorRadius << m_DamageRadius
-		<< m_QuakeSFX;
-	if (SaveVersion < 4519)
-	{
-		m_IntensityY = m_IntensityX;
-		m_IntensityZ = 0;
-		m_Flags = 0;
-	}
-	else
-	{
-		arc << m_IntensityY << m_IntensityZ << m_Flags;
-	}
-	if (SaveVersion < 4520)
-	{
-		m_CountdownStart = 0;
-	}
-	else
-	{
-		arc << m_CountdownStart;
-	}
-	if (SaveVersion < 4521)
-	{
-		m_WaveSpeedX = m_WaveSpeedY = m_WaveSpeedZ = 0;
-		m_IntensityX <<= FRACBITS;
-		m_IntensityY <<= FRACBITS;
-		m_IntensityZ <<= FRACBITS;
-	}
-	else
-	{
-		arc << m_WaveSpeedX << m_WaveSpeedY << m_WaveSpeedZ;
-	}
+		<< m_QuakeSFX << m_Flags << m_CountdownStart
+		<< m_WaveSpeed
+		<< m_Falloff << m_Highpoint << m_MiniCount;
 }
 
 //==========================================================================
@@ -122,6 +94,7 @@ void DEarthquake::Tick ()
 	{
 		S_Sound (m_Spot, CHAN_BODY | CHAN_LOOP, m_QuakeSFX, 1, ATTN_NORM);
 	}
+
 	if (m_DamageRadius > 0)
 	{
 		for (i = 0; i < MAXPLAYERS; i++)
@@ -129,10 +102,10 @@ void DEarthquake::Tick ()
 			if (playeringame[i] && !(players[i].cheats & CF_NOCLIP))
 			{
 				AActor *victim = players[i].mo;
-				fixed_t dist;
+				double dist;
 
-				dist = m_Spot->AproxDistance (victim, true);
-				// Check if in damage _f_radius()
+				dist = m_Spot->Distance2D(victim, true);
+				// Check if in damage radius
 				if (dist < m_DamageRadius && victim->Z() <= victim->floorz)
 				{
 					if (pr_quake() < 50)
@@ -141,13 +114,15 @@ void DEarthquake::Tick ()
 					}
 					// Thrust player around
 					DAngle an = victim->Angles.Yaw + pr_quake();
-					victim->Vel.X += FIXED2DBL(m_IntensityX) * an.Cos() * 0.5;
-					victim->Vel.Y += FIXED2DBL(m_IntensityY) * an.Sin() * 0.5;
+					victim->Vel.X += m_Intensity.X * an.Cos() * 0.5;
+					victim->Vel.Y += m_Intensity.Y * an.Sin() * 0.5;
 				}
 			}
 		}
 	}
 	
+	if (m_MiniCount > 0)
+		m_MiniCount--;
 	if (--m_Countdown == 0)
 	{
 		if (S_IsActorPlayingSomething(m_Spot, CHAN_BODY, m_QuakeSFX))
@@ -158,14 +133,20 @@ void DEarthquake::Tick ()
 	}
 }
 
-fixed_t DEarthquake::GetModWave(double waveMultiplier) const
-{
-	//QF_WAVE converts intensity into amplitude and unlocks a new property, the wave length.
-	//This is, in short, waves per second (full cycles, mind you, from 0 to 360.)
-	//Named waveMultiplier because that's as the name implies: adds more waves per second.
+//==========================================================================
+//
+// DEarthquake :: GetModWave
+//
+// QF_WAVE converts intensity into amplitude and unlocks a new property, the 
+// wave length. This is, in short, waves per second. Named waveMultiplier 
+// because that's as the name implies: adds more waves per second.
+//
+//==========================================================================
 
-	double time = m_Countdown - FIXED2DBL(r_TicFrac);
-	return FLOAT2FIXED(g_sin(waveMultiplier * time * (M_PI * 2 / TICRATE)));
+double DEarthquake::GetModWave(double waveMultiplier) const
+{
+	double time = m_Countdown - r_TicFracF;
+	return g_sin(waveMultiplier * time * (M_PI * 2 / TICRATE));
 }
 
 //==========================================================================
@@ -176,38 +157,97 @@ fixed_t DEarthquake::GetModWave(double waveMultiplier) const
 //
 //==========================================================================
 
-fixed_t DEarthquake::GetModIntensity(fixed_t intensity) const
+double DEarthquake::GetModIntensity(double intensity) const
 {
 	assert(m_CountdownStart >= m_Countdown);
+
 	intensity += intensity;		// always doubled
 
 	if (m_Flags & (QF_SCALEDOWN | QF_SCALEUP))
 	{
+		// Adjustable maximums must use a range between 1 and m_CountdownStart to constrain between no quake and full quake.
+		bool check = !!(m_Highpoint > 0 && m_Highpoint < m_CountdownStart);
+		int divider = (check) ? m_Highpoint : m_CountdownStart;
 		int scalar;
+		
 		if ((m_Flags & (QF_SCALEDOWN | QF_SCALEUP)) == (QF_SCALEDOWN | QF_SCALEUP))
 		{
-			scalar = (m_Flags & QF_MAX) ? MAX(m_Countdown, m_CountdownStart - m_Countdown)
-				: MIN(m_Countdown, m_CountdownStart - m_Countdown);
+			if (check)
+			{
+				if (m_MiniCount > 0)
+					scalar = (m_Flags & QF_MAX) ? m_MiniCount : (m_Highpoint - m_MiniCount);
+				else
+				{
+					divider = m_CountdownStart - m_Highpoint;
+					scalar = (m_Flags & QF_MAX) ? (divider - m_Countdown) : m_Countdown;
+				}
+			}
+			else
+			{
+				// Defaults to middle of the road.
+				divider = m_CountdownStart;
+				scalar = (m_Flags & QF_MAX) ? MAX(m_Countdown, m_CountdownStart - m_Countdown)
+					: MIN(m_Countdown, m_CountdownStart - m_Countdown);
+			}
+			scalar = (scalar > divider) ? divider : scalar;
 
 			if (m_Flags & QF_FULLINTENSITY)
 			{
 				scalar *= 2;
 			}
 		}
-		else if (m_Flags & QF_SCALEDOWN)
+		else 
 		{
-			scalar = m_Countdown;
+			if (m_Flags & QF_SCALEDOWN)
+			{
+				scalar = m_Countdown;
+			}
+			else			// QF_SCALEUP
+			{ 
+				scalar = m_CountdownStart - m_Countdown;
+				if (m_Highpoint > 0)
+				{
+					if ((m_Highpoint - m_MiniCount) < divider)
+						scalar = m_Highpoint - m_MiniCount;
+					else
+						scalar = divider;
+				}
+			}
+			scalar = (scalar > divider) ? divider : scalar;			
 		}		
-		else			// QF_SCALEUP
-		{
-			scalar = m_CountdownStart - m_Countdown;
-		}
-		assert(m_CountdownStart > 0);
-		intensity = Scale(intensity, scalar, m_CountdownStart);
+		assert(divider > 0);
+		intensity = intensity * scalar / divider;
 	}
 	return intensity;
 }
 
+//==========================================================================
+//
+// DEarthquake :: GetFalloff
+//
+// Given the distance of the player from the quake, find the multiplier.
+//
+//==========================================================================
+
+double DEarthquake::GetFalloff(double dist) const
+{
+	if ((dist < m_Falloff) || (m_Falloff >= m_TremorRadius) || (m_Falloff <= 0) || (m_TremorRadius - m_Falloff <= 0))
+	{ //Player inside the minimum falloff range, or safety check kicked in.
+		return 1.;
+	}
+	else if ((dist > m_Falloff) && (dist < m_TremorRadius))
+	{ //Player inside the radius, and outside the min distance for falloff.
+		double tremorsize = m_TremorRadius - m_Falloff;
+		double tremordist = dist - m_Falloff;
+		assert(tremorsize > 0);
+		return (1. - tremordist) / tremorsize;
+	}
+	else 
+	{ //Shouldn't happen.
+		return 1.;
+	}
+}
+
 //==========================================================================
 //
 // DEarthquake::StaticGetQuakeIntensity
@@ -234,33 +274,38 @@ int DEarthquake::StaticGetQuakeIntensities(AActor *victim, FQuakeJiggers &jigger
 	{
 		if (quake->m_Spot != NULL)
 		{
-			fixed_t dist = quake->m_Spot->AproxDistance (victim, true);
+			double dist = quake->m_Spot->Distance2D (victim, true);
 			if (dist < quake->m_TremorRadius)
 			{
+				double falloff = quake->GetFalloff(dist);
 				++count;
-				fixed_t x = quake->GetModIntensity(quake->m_IntensityX);
-				fixed_t y = quake->GetModIntensity(quake->m_IntensityY);
-				fixed_t z = quake->GetModIntensity(quake->m_IntensityZ);
+				double x = quake->GetModIntensity(quake->m_Intensity.X);
+				double y = quake->GetModIntensity(quake->m_Intensity.Y);
+				double z = quake->GetModIntensity(quake->m_Intensity.Z);
+				
+
 				if (!(quake->m_Flags & QF_WAVE))
 				{
+					jiggers.Falloff = MAX(falloff, jiggers.Falloff);
 					if (quake->m_Flags & QF_RELATIVE)
 					{
-						jiggers.RelIntensityX = MAX(x, jiggers.RelIntensityX);
-						jiggers.RelIntensityY = MAX(y, jiggers.RelIntensityY);
-						jiggers.RelIntensityZ = MAX(z, jiggers.RelIntensityZ);
+						jiggers.RelIntensity.X = MAX(x, jiggers.RelIntensity.X);
+						jiggers.RelIntensity.Y = MAX(y, jiggers.RelIntensity.Y);
+						jiggers.RelIntensity.Z = MAX(z, jiggers.RelIntensity.Z);
 					}
 					else
 					{
-						jiggers.IntensityX = MAX(x, jiggers.IntensityX);
-						jiggers.IntensityY = MAX(y, jiggers.IntensityY);
-						jiggers.IntensityZ = MAX(z, jiggers.IntensityZ);
+						jiggers.Intensity.X = MAX(x, jiggers.Intensity.X);
+						jiggers.Intensity.Y = MAX(y, jiggers.Intensity.Y);
+						jiggers.Intensity.Z = MAX(z, jiggers.Intensity.Z);
 					}
 				}
 				else
 				{
-					fixed_t mx = FixedMul(x, quake->GetModWave(quake->m_WaveSpeedX));
-					fixed_t my = FixedMul(y, quake->GetModWave(quake->m_WaveSpeedY));
-					fixed_t mz = FixedMul(z, quake->GetModWave(quake->m_WaveSpeedZ));
+					jiggers.WFalloff = MAX(falloff, jiggers.WFalloff);
+					double mx = x * quake->GetModWave(quake->m_WaveSpeed.X);
+					double my = y * quake->GetModWave(quake->m_WaveSpeed.Y);
+					double mz = z * quake->GetModWave(quake->m_WaveSpeed.Z);
 
 					// [RH] This only gives effect to the last sine quake. I would
 					// prefer if some way was found to make multiples coexist
@@ -269,15 +314,15 @@ int DEarthquake::StaticGetQuakeIntensities(AActor *victim, FQuakeJiggers &jigger
 					// relative phases.
 					if (quake->m_Flags & QF_RELATIVE)
 					{
-						jiggers.RelOffsetX = mx;
-						jiggers.RelOffsetY = my;
-						jiggers.RelOffsetZ = mz;
+						jiggers.RelOffset.X = mx;
+						jiggers.RelOffset.Y = my;
+						jiggers.RelOffset.Z = mz;
 					}
 					else
 					{
-						jiggers.OffsetX = mx;
-						jiggers.OffsetY = my;
-						jiggers.OffsetZ = mz;
+						jiggers.Offset.X = mx;
+						jiggers.Offset.Y = my;
+						jiggers.Offset.Z = mz;
 					}
 				}
 			}
@@ -294,7 +339,7 @@ int DEarthquake::StaticGetQuakeIntensities(AActor *victim, FQuakeJiggers &jigger
 
 bool P_StartQuakeXYZ(AActor *activator, int tid, int intensityX, int intensityY, int intensityZ, int duration,
 	int damrad, int tremrad, FSoundID quakesfx, int flags,
-	double waveSpeedX, double waveSpeedY, double waveSpeedZ)
+	double waveSpeedX, double waveSpeedY, double waveSpeedZ, int falloff, int highpoint)
 {
 	AActor *center;
 	bool res = false;
@@ -308,7 +353,7 @@ bool P_StartQuakeXYZ(AActor *activator, int tid, int intensityX, int intensityY,
 		if (activator != NULL)
 		{
 			new DEarthquake(activator, intensityX, intensityY, intensityZ, duration, damrad, tremrad,
-				quakesfx, flags, waveSpeedX, waveSpeedY, waveSpeedZ);
+				quakesfx, flags, waveSpeedX, waveSpeedY, waveSpeedZ, falloff, highpoint);
 			return true;
 		}
 	}
@@ -319,7 +364,7 @@ bool P_StartQuakeXYZ(AActor *activator, int tid, int intensityX, int intensityY,
 		{
 			res = true;
 			new DEarthquake(center, intensityX, intensityY, intensityZ, duration, damrad, tremrad,
-				quakesfx, flags, waveSpeedX, waveSpeedY, waveSpeedZ);
+				quakesfx, flags, waveSpeedX, waveSpeedY, waveSpeedZ, falloff, highpoint);
 		}
 	}
 	
@@ -327,6 +372,6 @@ bool P_StartQuakeXYZ(AActor *activator, int tid, int intensityX, int intensityY,
 }
 
 bool P_StartQuake(AActor *activator, int tid, int intensity, int duration, int damrad, int tremrad, FSoundID quakesfx)
-{	//Maintains original behavior by passing 0 to intensityZ, and flags.
-	return P_StartQuakeXYZ(activator, tid, intensity, intensity, 0, duration, damrad, tremrad, quakesfx, 0, 0, 0, 0);
+{	//Maintains original behavior by passing 0 to intensityZ, flags, and everything else after QSFX.
+	return P_StartQuakeXYZ(activator, tid, intensity, intensity, 0, duration, damrad, tremrad, quakesfx, 0, 0, 0, 0, 0, 0);
 }

src/g_shared/a_randomspawner.cpp

@@ -151,7 +151,7 @@ class ARandomSpawner : public AActor
 			{
 				tracer = target->target;
 			}
-			newmobj = P_SpawnMissileXYZ(_f_Pos(), target, target->target, cls, false);
+			newmobj = P_SpawnMissileXYZ(Pos(), target, target->target, cls, false);
 		}
 		else 
 		{		
@@ -162,7 +162,7 @@ class ARandomSpawner : public AActor
 			// copy everything relevant
 			newmobj->SpawnAngle = SpawnAngle;
 			newmobj->Angles		= Angles;
-			newmobj->SpawnPoint[2] = SpawnPoint[2];
+			newmobj->SpawnPoint = SpawnPoint;
 			newmobj->special    = special;
 			newmobj->args[0]    = args[0];
 			newmobj->args[1]    = args[1];
@@ -188,7 +188,7 @@ class ARandomSpawner : public AActor
 			// Handle special altitude flags
 			if (newmobj->flags & MF_SPAWNCEILING)
 			{
-				newmobj->_f_SetZ(newmobj->_f_ceilingz() - newmobj->_f_height() - SpawnPoint[2]);
+				newmobj->SetZ(newmobj->ceilingz - newmobj->Height - SpawnPoint.Z);
 			}
 			else if (newmobj->flags2 & MF2_SPAWNFLOAT) 
 			{
@@ -198,7 +198,7 @@ class ARandomSpawner : public AActor
 					space -= 40;
 					newmobj->SetZ((space * pr_randomspawn()) / 256. + newmobj->floorz + 40);
 				}
-				newmobj->_f_AddZ(SpawnPoint[2]);
+				newmobj->AddZ(SpawnPoint.Z);
 			}
 			if (newmobj->flags & MF_MISSILE)
 				P_CheckMissileSpawn(newmobj, 0);

src/g_shared/a_sharedglobal.h

@@ -154,10 +154,12 @@ enum
 
 struct FQuakeJiggers
 {
-	int IntensityX, IntensityY, IntensityZ;
-	int RelIntensityX, RelIntensityY, RelIntensityZ;
-	int OffsetX, OffsetY, OffsetZ;
-	int RelOffsetX, RelOffsetY, RelOffsetZ;
+	DVector3 Intensity;
+	DVector3 RelIntensity;
+	DVector3 Offset;
+	DVector3 RelOffset;
+	double Falloff;
+	double WFalloff;
 };
 
 class DEarthquake : public DThinker
@@ -167,21 +169,24 @@ class DEarthquake : public DThinker
 public:
 	DEarthquake(AActor *center, int intensityX, int intensityY, int intensityZ, int duration,
 		int damrad, int tremrad, FSoundID quakesfx, int flags, 
-		double waveSpeedX, double waveSpeedY, double waveSpeedZ);
+		double waveSpeedX, double waveSpeedY, double waveSpeedZ, int falloff, int highpoint);
 
 	void Serialize (FArchive &arc);
 	void Tick ();
 	TObjPtr<AActor> m_Spot;
-	fixed_t m_TremorRadius, m_DamageRadius;
+	double m_TremorRadius, m_DamageRadius;
 	int m_Countdown;
 	int m_CountdownStart;
 	FSoundID m_QuakeSFX;
 	int m_Flags;
-	fixed_t m_IntensityX, m_IntensityY, m_IntensityZ;
-	float m_WaveSpeedX, m_WaveSpeedY, m_WaveSpeedZ;
+	DVector3 m_Intensity;
+	DVector3 m_WaveSpeed;
+	double m_Falloff;
+	int m_Highpoint, m_MiniCount;
 
-	fixed_t GetModIntensity(int intensity) const;
-	fixed_t GetModWave(double waveMultiplier) const;
+	double GetModIntensity(double intensity) const;
+	double GetModWave(double waveMultiplier) const;
+	double GetFalloff(double dist) const;
 
 	static int StaticGetQuakeIntensities(AActor *viewer, FQuakeJiggers &jiggers);
 

src/g_shared/a_spark.cpp

@@ -50,6 +50,6 @@ IMPLEMENT_CLASS (ASpark)
 void ASpark::Activate (AActor *activator)
 {
 	Super::Activate (activator);
-	P_DrawSplash (args[0] ? args[0] : 32, _f_X(), _f_Y(), _f_Z(), FLOAT2ANGLE(Angles.Yaw.Degrees), 1);
+	P_DrawSplash (args[0] ? args[0] : 32, Pos(), Angles.Yaw, 1);
 	S_Sound (this, CHAN_AUTO, "world/spark", 1, ATTN_STATIC);
 }

src/g_shared/a_weapons.cpp

@@ -41,7 +41,7 @@ IMPLEMENT_CLASS(PClassWeapon)
 PClassWeapon::PClassWeapon()
 {
 	SlotNumber = -1;
-	SlotPriority = FIXED_MAX;
+	SlotPriority = INT_MAX;
 }
 
 void PClassWeapon::DeriveData(PClass *newclass)
@@ -382,7 +382,7 @@ AAmmo *AWeapon::AddAmmo (AActor *other, PClassActor *ammotype, int amount)
 	// extra ammo in baby mode and nightmare mode
 	if (!(this->ItemFlags&IF_IGNORESKILL))
 	{
-		amount = FixedMul(amount, G_SkillProperty(SKILLP_AmmoFactor));
+		amount = int(amount * G_SkillProperty(SKILLP_AmmoFactor));
 	}
 	ammo = static_cast<AAmmo *>(other->FindInventory (ammotype));
 	if (ammo == NULL)
@@ -418,7 +418,7 @@ bool AWeapon::AddExistingAmmo (AAmmo *ammo, int amount)
 		// extra ammo in baby mode and nightmare mode
 		if (!(ItemFlags&IF_IGNORESKILL))
 		{
-			amount = FixedMul(amount, G_SkillProperty(SKILLP_AmmoFactor));
+			amount = int(amount * G_SkillProperty(SKILLP_AmmoFactor));
 		}
 		ammo->Amount += amount;
 		if (ammo->Amount > ammo->MaxAmount && !sv_unlimited_pickup)
@@ -762,8 +762,8 @@ bool AWeaponGiver::TryPickup(AActor *&toucher)
 					// If DropAmmoFactor is non-negative, modify the given ammo amounts.
 					if (DropAmmoFactor > 0)
 					{
-						weap->AmmoGive1 = FixedMul(weap->AmmoGive1, DropAmmoFactor);
-						weap->AmmoGive2 = FixedMul(weap->AmmoGive2, DropAmmoFactor);
+						weap->AmmoGive1 = int(weap->AmmoGive1 * DropAmmoFactor);
+						weap->AmmoGive2 = int(weap->AmmoGive2 * DropAmmoFactor);
 					}
 					weap->BecomeItem();
 				}
@@ -984,7 +984,7 @@ void FWeaponSlot::Sort()
 
 	for (i = 1; i < (int)Weapons.Size(); ++i)
 	{
-		fixed_t pos = Weapons[i].Position;
+		int pos = Weapons[i].Position;
 		PClassWeapon *type = Weapons[i].Type;
 		for (j = i - 1; j >= 0 && Weapons[j].Position > pos; --j)
 		{

src/g_shared/hudmessages.cpp

@@ -146,7 +146,7 @@ DHUDMessage::DHUDMessage (FFont *font, const char *text, float x, float y, int h
 	Font = font;
 	VisibilityFlags = 0;
 	Style = STYLE_Translucent;
-	Alpha = FRACUNIT;
+	Alpha = 1.;
 	ResetText (SourceText);
 }
 
@@ -221,7 +221,7 @@ void DHUDMessage::Serialize (FArchive &arc)
 	if (SaveVersion < 3824)
 	{
 		Style = STYLE_Translucent;
-		Alpha = FRACUNIT;
+		Alpha = 1.;
 	}
 	else
 	{
@@ -474,7 +474,7 @@ void DHUDMessage::DoDraw (int linenum, int x, int y, bool clean, int hudheight)
 		{
 			screen->DrawText (Font, TextColor, x, y, Lines[linenum].Text,
 				DTA_CleanNoMove, clean,
-				DTA_Alpha, Alpha,
+				DTA_AlphaF, Alpha,
 				DTA_RenderStyle, Style,
 				TAG_DONE);
 		}
@@ -483,7 +483,7 @@ void DHUDMessage::DoDraw (int linenum, int x, int y, bool clean, int hudheight)
 			screen->DrawText (Font, TextColor, x, y, Lines[linenum].Text,
 				DTA_VirtualWidth, SCREENWIDTH/2,
 				DTA_VirtualHeight, SCREENHEIGHT/2,
-				DTA_Alpha, Alpha,
+				DTA_AlphaF, Alpha,
 				DTA_RenderStyle, Style,
 				DTA_KeepRatio, true,
 				TAG_DONE);
@@ -498,7 +498,7 @@ void DHUDMessage::DoDraw (int linenum, int x, int y, bool clean, int hudheight)
 			DTA_ClipRight, ClipRight,
 			DTA_ClipTop, ClipTop,
 			DTA_ClipBottom, ClipBot,
-			DTA_Alpha, Alpha,
+			DTA_AlphaF, Alpha,
 			DTA_RenderStyle, Style,
 			TAG_DONE);
 	}
@@ -570,15 +570,14 @@ void DHUDMessageFadeOut::DoDraw (int linenum, int x, int y, bool clean, int hudh
 	}
 	else
 	{
-		fixed_t trans = -(Tics - FadeOutTics) * FRACUNIT / FadeOutTics;
-		trans = FixedMul(trans, Alpha);
+		float trans = float(Alpha * -(Tics - FadeOutTics) / FadeOutTics);
 		if (hudheight == 0)
 		{
 			if (con_scaletext <= 1)
 			{
 				screen->DrawText (Font, TextColor, x, y, Lines[linenum].Text,
 					DTA_CleanNoMove, clean,
-					DTA_Alpha, trans,
+					DTA_AlphaF, trans,
 					DTA_RenderStyle, Style,
 					TAG_DONE);
 			}
@@ -587,7 +586,7 @@ void DHUDMessageFadeOut::DoDraw (int linenum, int x, int y, bool clean, int hudh
 				screen->DrawText (Font, TextColor, x, y, Lines[linenum].Text,
 					DTA_VirtualWidth, SCREENWIDTH/2,
 					DTA_VirtualHeight, SCREENHEIGHT/2,
-					DTA_Alpha, trans,
+					DTA_AlphaF, trans,
 					DTA_RenderStyle, Style,
 					DTA_KeepRatio, true,
 					TAG_DONE);
@@ -602,7 +601,7 @@ void DHUDMessageFadeOut::DoDraw (int linenum, int x, int y, bool clean, int hudh
 				DTA_ClipRight, ClipRight,
 				DTA_ClipTop, ClipTop,
 				DTA_ClipBottom, ClipBot,
-				DTA_Alpha, trans,
+				DTA_AlphaF, trans,
 				DTA_RenderStyle, Style,
 				TAG_DONE);
 		}
@@ -671,15 +670,14 @@ void DHUDMessageFadeInOut::DoDraw (int linenum, int x, int y, bool clean, int hu
 {
 	if (State == 0)
 	{
-		fixed_t trans = Tics * FRACUNIT / FadeInTics;
-		trans = FixedMul(trans, Alpha);
+		float trans = float(Alpha * Tics / FadeInTics);
 		if (hudheight == 0)
 		{
 			if (con_scaletext <= 1)
 			{
 				screen->DrawText (Font, TextColor, x, y, Lines[linenum].Text,
 					DTA_CleanNoMove, clean,
-					DTA_Alpha, trans,
+					DTA_AlphaF, trans,
 					DTA_RenderStyle, Style,
 					TAG_DONE);
 			}
@@ -688,7 +686,7 @@ void DHUDMessageFadeInOut::DoDraw (int linenum, int x, int y, bool clean, int hu
 				screen->DrawText (Font, TextColor, x, y, Lines[linenum].Text,
 					DTA_VirtualWidth, SCREENWIDTH/2,
 					DTA_VirtualHeight, SCREENHEIGHT/2,
-					DTA_Alpha, trans,
+					DTA_AlphaF, trans,
 					DTA_RenderStyle, Style,
 					DTA_KeepRatio, true,
 					TAG_DONE);
@@ -703,7 +701,7 @@ void DHUDMessageFadeInOut::DoDraw (int linenum, int x, int y, bool clean, int hu
 				DTA_ClipRight, ClipRight,
 				DTA_ClipTop, ClipTop,
 				DTA_ClipBottom, ClipBot,
-				DTA_Alpha, trans,
+				DTA_AlphaF, trans,
 				DTA_RenderStyle, Style,
 				TAG_DONE);
 		}
@@ -858,7 +856,7 @@ void DHUDMessageTypeOnFadeOut::DoDraw (int linenum, int x, int y, bool clean, in
 					screen->DrawText (Font, TextColor, x, y, Lines[linenum].Text,
 						DTA_CleanNoMove, clean,
 						DTA_TextLen, LineVisible,
-						DTA_Alpha, Alpha,
+						DTA_AlphaF, Alpha,
 						DTA_RenderStyle, Style,
 						TAG_DONE);
 				}
@@ -869,7 +867,7 @@ void DHUDMessageTypeOnFadeOut::DoDraw (int linenum, int x, int y, bool clean, in
 						DTA_VirtualHeight, SCREENHEIGHT/2,
 						DTA_KeepRatio, true,
 						DTA_TextLen, LineVisible,
-						DTA_Alpha, Alpha,
+						DTA_AlphaF, Alpha,
 						DTA_RenderStyle, Style,
 						TAG_DONE);
 				}
@@ -883,7 +881,7 @@ void DHUDMessageTypeOnFadeOut::DoDraw (int linenum, int x, int y, bool clean, in
 					DTA_ClipRight, ClipRight,
 					DTA_ClipTop, ClipTop,
 					DTA_ClipBottom, ClipBot,
-					DTA_Alpha, Alpha,
+					DTA_AlphaF, Alpha,
 					DTA_TextLen, LineVisible,
 					DTA_RenderStyle, Style,
 					TAG_DONE);

src/g_shared/sbar.h

@@ -88,7 +88,7 @@ public:
 	{
 		Style = style;
 	}
-	void SetAlpha(fixed_t alpha)
+	void SetAlpha(float alpha)
 	{
 		Alpha = alpha;
 	}
@@ -127,7 +127,7 @@ protected:
 	EColorRange TextColor;
 	FFont *Font;
 	FRenderStyle Style;
-	fixed_t Alpha;
+	double Alpha;
 
 	void CalcClipCoords(int hudheight);
 	DHUDMessage () : SourceText(NULL) {}
@@ -349,7 +349,7 @@ public:
 	DHUDMessage *DetachMessage (uint32 id);
 	void DetachAllMessages ();
 	void ShowPlayerName ();
-	fixed_t GetDisplacement () { return Displacement; }
+	double GetDisplacement() { return Displacement; }
 	int GetPlayer ();
 
 	static void AddBlend (float r, float g, float b, float a, float v_blend[4]);
@@ -380,7 +380,6 @@ protected:
 	void UpdateRect (int x, int y, int width, int height) const;
 	void DrawImage (FTexture *image, int x, int y, FRemapTable *translation=NULL) const;
 	void DrawDimImage (FTexture *image, int x, int y, bool dimmed) const;
-	void DrawFadedImage (FTexture *image, int x, int y, fixed_t shade) const;
 	void DrawPartialImage (FTexture *image, int wx, int ww) const;
 
 	void DrINumber (signed int val, int x, int y, int imgBase=imgINumbers) const;
@@ -407,8 +406,8 @@ public:
 	bool Centering;
 	bool FixedOrigin;
 	bool CompleteBorder;
-	fixed_t CrosshairSize;
-	fixed_t Displacement;
+	double CrosshairSize;
+	double Displacement;
 
 	enum
 	{

src/g_shared/sbarinfo.cpp

@@ -76,6 +76,7 @@ EXTERN_CVAR(Bool, vid_fps)
 EXTERN_CVAR(Bool, hud_scale)
 
 class DSBarInfo;
+static double nulclip[] = { 0,0,0,0 };
 
 ////////////////////////////////////////////////////////////////////////////////
 
@@ -294,22 +295,22 @@ class SBarInfoMainBlock : public SBarInfoCommandFlowControl
 {
 	public:
 		SBarInfoMainBlock(SBarInfo *script) : SBarInfoCommandFlowControl(script),
-			alpha(OPAQUE), currentAlpha(OPAQUE), forceScaled(false),
+			alpha(1.), currentAlpha(1.), forceScaled(false),
 			fullScreenOffsets(false)
 		{
 			SetTruth(true, NULL, NULL);
 		}
 
-		int		Alpha() const { return currentAlpha; }
+		double	Alpha() const { return currentAlpha; }
 		// Same as Draw but takes into account ForceScaled and temporarily sets the scaling if needed.
-		void	DrawAux(const SBarInfoMainBlock *block, DSBarInfo *statusBar, int xOffset, int yOffset, int alpha);
+		void	DrawAux(const SBarInfoMainBlock *block, DSBarInfo *statusBar, int xOffset, int yOffset, double alpha);
 		// Silence hidden overload warning since this is a special use class.
 		using SBarInfoCommandFlowControl::Draw;
-		void	Draw(const SBarInfoMainBlock *block, const DSBarInfo *statusBar, int xOffset, int yOffset, int alpha)
+		void	Draw(const SBarInfoMainBlock *block, const DSBarInfo *statusBar, int xOffset, int yOffset, double alpha)
 		{
 			this->xOffset = xOffset;
 			this->yOffset = yOffset;
-			this->currentAlpha = FixedMul(this->alpha, alpha);
+			this->currentAlpha = this->alpha * alpha;
 			SBarInfoCommandFlowControl::Draw(this, statusBar);
 		}
 		bool	ForceScaled() const { return forceScaled; }
@@ -334,7 +335,7 @@ class SBarInfoMainBlock : public SBarInfoCommandFlowControl
 					}
 				}
 				sc.MustGetToken(TK_FloatConst);
-				alpha = fixed_t(OPAQUE * sc.Float);
+				alpha = sc.Float;
 			}
 			SBarInfoCommandFlowControl::Parse(sc, this->fullScreenOffsets);
 		}
@@ -343,8 +344,8 @@ class SBarInfoMainBlock : public SBarInfoCommandFlowControl
 		int		YOffset() const { return yOffset; }
 
 	protected:
-		int		alpha;
-		int		currentAlpha;
+		double	alpha;
+		double	currentAlpha;
 		bool	forceScaled;
 		bool	fullScreenOffsets;
 		int		xOffset;
@@ -698,24 +699,24 @@ void SBarInfo::ParseSBarInfo(int lump)
 						popup.transition = Popup::TRANSITION_SLIDEINBOTTOM;
 						sc.MustGetToken(',');
 						sc.MustGetToken(TK_IntConst);
-						popup.speed = sc.Number;
+						popup.ispeed = sc.Number;
 					}
 					else if(sc.Compare("pushup"))
 					{
 						popup.transition = Popup::TRANSITION_PUSHUP;
 						sc.MustGetToken(',');
 						sc.MustGetToken(TK_IntConst);
-						popup.speed = sc.Number;
+						popup.ispeed = sc.Number;
 					}
 					else if(sc.Compare("fade"))
 					{
 						popup.transition = Popup::TRANSITION_FADE;
 						sc.MustGetToken(',');
 						sc.MustGetToken(TK_FloatConst);
-						popup.speed = fixed_t(FRACUNIT * (1.0 / (35.0 * sc.Float)));
+						popup.speed = 1.0 / (35.0 * sc.Float);
 						sc.MustGetToken(',');
 						sc.MustGetToken(TK_FloatConst);
-						popup.speed2 = fixed_t(FRACUNIT * (1.0 / (35.0 * sc.Float)));
+						popup.speed2 = 1.0 / (35.0 * sc.Float);
 					}
 					else
 						sc.ScriptError("Unkown transition type: '%s'", sc.String);
@@ -820,7 +821,7 @@ SBarInfo::~SBarInfo()
 
 //Popup
 Popup::Popup() : transition(TRANSITION_NONE), opened(false), moving(false),
-	height(320), width(200), speed(0), speed2(0), alpha(FRACUNIT), x(320),
+	height(320), width(200), ispeed(0), speed(0), speed2(0), alpha(1.), x(320),
 	y(200), displacementX(0), displacementY(0)
 {
 }
@@ -855,9 +856,9 @@ void Popup::tick()
 			{
 				int oldY = y;
 				if(opened)
-					y -= clamp(height + (y - height), 1, speed);
+					y -= clamp(height + (y - height), 1, ispeed);
 				else
-					y += clamp(height - y, 1, speed);
+					y += clamp(height - y, 1, ispeed);
 				if(transition == TRANSITION_PUSHUP)
 					displacementY += y - oldY;
 			}
@@ -870,11 +871,11 @@ void Popup::tick()
 			if(moving)
 			{
 				if(opened)
-					alpha = clamp<int>(alpha + speed, 0, OPAQUE);
+					alpha = clamp(alpha + speed, 0., 1.);
 				else
-					alpha = clamp<int>(alpha - speed2, 0, OPAQUE);
+					alpha = clamp(alpha - speed2, 0., 1.);
 			}
-			if(alpha == 0 || alpha == OPAQUE)
+			if(alpha == 0 || alpha == 1.)
 				moving = false;
 			else
 				moving = true;
@@ -910,9 +911,9 @@ int Popup::getYOffset()
 	return y;
 }
 
-int Popup::getAlpha(int maxAlpha)
+double Popup::getAlpha(double maxAlpha)
 {
-	return FixedMul(alpha, maxAlpha);
+	return alpha * maxAlpha;
 }
 
 int Popup::getXDisplacement()
@@ -1057,9 +1058,9 @@ public:
 			}
 
 			if(currentPopup != POP_None && !script->huds[hud]->FullScreenOffsets())
-				script->huds[hud]->Draw(NULL, this, script->popups[currentPopup-1].getXDisplacement(), script->popups[currentPopup-1].getYDisplacement(), FRACUNIT);
+				script->huds[hud]->Draw(NULL, this, script->popups[currentPopup-1].getXDisplacement(), script->popups[currentPopup-1].getYDisplacement(), 1.);
 			else
-				script->huds[hud]->Draw(NULL, this, 0, 0, FRACUNIT);
+				script->huds[hud]->Draw(NULL, this, 0, 0, 1.);
 			lastHud = hud;
 
 			// Handle inventory bar drawing
@@ -1073,7 +1074,7 @@ public:
 				if(inventoryBar->NumCommands() == 0)
 					CPlayer->inventorytics = 0;
 				else
-					inventoryBar->DrawAux(NULL, this, 0, 0, FRACUNIT);
+					inventoryBar->DrawAux(NULL, this, 0, 0, 1.);
 			}
 		}
 
@@ -1177,7 +1178,7 @@ public:
 	}
 
 	//draws an image with the specified flags
-	void DrawGraphic(FTexture* texture, SBarInfoCoordinate x, SBarInfoCoordinate y, int xOffset, int yOffset, int alpha, bool fullScreenOffsets, bool translate=false, bool dim=false, int offsetflags=0, bool alphaMap=false, int forceWidth=-1, int forceHeight=-1, fixed_t cx=0, fixed_t cy=0, fixed_t cr=0, fixed_t cb=0, bool clearDontDraw=false) const
+	void DrawGraphic(FTexture* texture, SBarInfoCoordinate x, SBarInfoCoordinate y, int xOffset, int yOffset, double Alpha, bool fullScreenOffsets, bool translate=false, bool dim=false, int offsetflags=0, bool alphaMap=false, int forceWidth=-1, int forceHeight=-1, const double *clip = nulclip, bool clearDontDraw=false) const
 	{
 		if (texture == NULL)
 			return;
@@ -1205,20 +1206,20 @@ public:
 			dy += ST_Y - (Scaled ? script->resH : 200) + script->height;
 			w = forceWidth < 0 ? texture->GetScaledWidthDouble() : forceWidth;
 			h = forceHeight < 0 ? texture->GetScaledHeightDouble() : forceHeight;
-			double dcx = cx == 0 ? 0 : dx + ((double) cx / FRACUNIT) - texture->GetScaledLeftOffsetDouble();
-			double dcy = cy == 0 ? 0 : dy + ((double) cy / FRACUNIT) - texture->GetScaledTopOffsetDouble();
-			double dcr = cr == 0 ? INT_MAX : dx + w - ((double) cr / FRACUNIT) - texture->GetScaledLeftOffsetDouble();
-			double dcb = cb == 0 ? INT_MAX : dy + h - ((double) cb / FRACUNIT) - texture->GetScaledTopOffsetDouble();
+			double dcx = clip[0] == 0 ? 0 : dx + clip[0] - texture->GetScaledLeftOffsetDouble();
+			double dcy = clip[1] == 0 ? 0 : dy + clip[1] - texture->GetScaledTopOffsetDouble();
+			double dcr = clip[2] == 0 ? INT_MAX : dx + w - clip[2] - texture->GetScaledLeftOffsetDouble();
+			double dcb = clip[3] == 0 ? INT_MAX : dy + h - clip[3] - texture->GetScaledTopOffsetDouble();
 
 			if(Scaled)
 			{
-				if(cx != 0 || cy != 0)
+				if(clip[0] != 0 || clip[1] != 0)
 				{
 					screen->VirtualToRealCoords(dcx, dcy, tmp, tmp, script->resW, script->resH, true);
-					if (cx == 0) dcx = 0;
-					if (cy == 0) dcy = 0;
+					if (clip[0] == 0) dcx = 0;
+					if (clip[1] == 0) dcy = 0;
 				}
-				if(cr != 0 || cb != 0 || clearDontDraw)
+				if(clip[2] != 0 || clip[3] != 0 || clearDontDraw)
 					screen->VirtualToRealCoords(dcr, dcb, tmp, tmp, script->resW, script->resH, true);
 				screen->VirtualToRealCoords(dx, dy, w, h, script->resW, script->resH, true);
 			}
@@ -1245,7 +1246,7 @@ public:
 						DTA_Translation, translate ? GetTranslation() : 0,
 						DTA_ColorOverlay, dim ? DIM_OVERLAY : 0,
 						DTA_CenterBottomOffset, (offsetflags & SBarInfoCommand::CENTER_BOTTOM) == SBarInfoCommand::CENTER_BOTTOM,
-						DTA_Alpha, alpha,
+						DTA_AlphaF, Alpha,
 						DTA_AlphaChannel, alphaMap,
 						DTA_FillColor, 0,
 						TAG_DONE);
@@ -1262,7 +1263,7 @@ public:
 						DTA_Translation, translate ? GetTranslation() : 0,
 						DTA_ColorOverlay, dim ? DIM_OVERLAY : 0,
 						DTA_CenterBottomOffset, (offsetflags & SBarInfoCommand::CENTER_BOTTOM) == SBarInfoCommand::CENTER_BOTTOM,
-						DTA_Alpha, alpha,
+						DTA_AlphaF, Alpha,
 						TAG_DONE);
 				}
 			}
@@ -1298,12 +1299,12 @@ public:
 				ry = SCREENHEIGHT + ry;
 
 			// Check for clipping
-			if(cx != 0 || cy != 0 || cr != 0 || cb != 0)
+			if(clip[0] != 0 || clip[1] != 0 || clip[2] != 0 || clip[3] != 0)
 			{
-				rcx = cx == 0 ? 0 : rx+((((double) cx/FRACUNIT) - texture->GetScaledLeftOffsetDouble())*xScale);
-				rcy = cy == 0 ? 0 : ry+((((double) cy/FRACUNIT) - texture->GetScaledTopOffsetDouble())*yScale);
-				rcr = cr == 0 ? INT_MAX : rx+w-((((double) cr/FRACUNIT) + texture->GetScaledLeftOffsetDouble())*xScale);
-				rcb = cb == 0 ? INT_MAX : ry+h-((((double) cb/FRACUNIT) + texture->GetScaledTopOffsetDouble())*yScale);
+				rcx = clip[0] == 0 ? 0 : rx+((clip[0] - texture->GetScaledLeftOffsetDouble())*xScale);
+				rcy = clip[1] == 0 ? 0 : ry+((clip[1] - texture->GetScaledTopOffsetDouble())*yScale);
+				rcr = clip[2] == 0 ? INT_MAX : rx+w-((clip[2] + texture->GetScaledLeftOffsetDouble())*xScale);
+				rcb = clip[3] == 0 ? INT_MAX : ry+h-((clip[3] + texture->GetScaledTopOffsetDouble())*yScale);
 			}
 
 			if(clearDontDraw)
@@ -1322,7 +1323,7 @@ public:
 						DTA_Translation, translate ? GetTranslation() : 0,
 						DTA_ColorOverlay, dim ? DIM_OVERLAY : 0,
 						DTA_CenterBottomOffset, (offsetflags & SBarInfoCommand::CENTER_BOTTOM) == SBarInfoCommand::CENTER_BOTTOM,
-						DTA_Alpha, alpha,
+						DTA_AlphaF, Alpha,
 						DTA_AlphaChannel, alphaMap,
 						DTA_FillColor, 0,
 						TAG_DONE);
@@ -1339,14 +1340,14 @@ public:
 						DTA_Translation, translate ? GetTranslation() : 0,
 						DTA_ColorOverlay, dim ? DIM_OVERLAY : 0,
 						DTA_CenterBottomOffset, (offsetflags & SBarInfoCommand::CENTER_BOTTOM) == SBarInfoCommand::CENTER_BOTTOM,
-						DTA_Alpha, alpha,
+						DTA_AlphaF, Alpha,
 						TAG_DONE);
 				}
 			}
 		}
 	}
 
-	void DrawString(FFont *font, const char* cstring, SBarInfoCoordinate x, SBarInfoCoordinate y, int xOffset, int yOffset, int alpha, bool fullScreenOffsets, EColorRange translation, int spacing=0, bool drawshadow=false, int shadowX=2, int shadowY=2) const
+	void DrawString(FFont *font, const char* cstring, SBarInfoCoordinate x, SBarInfoCoordinate y, int xOffset, int yOffset, double Alpha, bool fullScreenOffsets, EColorRange translation, int spacing=0, bool drawshadow=false, int shadowX=2, int shadowY=2) const
 	{
 		x += spacing;
 		double ax = *x;
@@ -1456,13 +1457,13 @@ public:
 			}
 			if(drawshadow)
 			{
-				fixed_t salpha = fixed_t(alpha *HR_SHADOW);
+				double salpha = (Alpha *HR_SHADOW);
 				double srx = rx + (shadowX*xScale);
 				double sry = ry + (shadowY*yScale);
 				screen->DrawTexture(character, srx, sry,
 					DTA_DestWidthF, rw,
 					DTA_DestHeightF, rh,
-					DTA_Alpha, salpha,
+					DTA_AlphaF, salpha,
 					DTA_FillColor, 0,
 					TAG_DONE);
 			}
@@ -1470,7 +1471,7 @@ public:
 				DTA_DestWidthF, rw,
 				DTA_DestHeightF, rh,
 				DTA_Translation, remap,
-				DTA_Alpha, alpha,
+				DTA_AlphaF, Alpha,
 				TAG_DONE);
 			if(script->spacingCharacter == '\0')
 				ax += width + spacing - (character->LeftOffset+1);
@@ -1516,7 +1517,7 @@ DBaseStatusBar *CreateCustomStatusBar (int script)
 	return new DSBarInfo(SBarInfoScript[script]);
 }
 
-void SBarInfoMainBlock::DrawAux(const SBarInfoMainBlock *block, DSBarInfo *statusBar, int xOffset, int yOffset, int alpha)
+void SBarInfoMainBlock::DrawAux(const SBarInfoMainBlock *block, DSBarInfo *statusBar, int xOffset, int yOffset, double alpha)
 {
 	// Popups can also be forced to scale
 	bool rescale = false;

src/g_shared/sbarinfo.h

@@ -61,9 +61,10 @@ struct Popup
 	bool moving;
 	int height;
 	int width;
-	int speed;
-	int speed2;
-	int alpha;
+	int ispeed;
+	double speed;
+	double speed2;
+	double alpha;
 	int x;
 	int y;
 	int displacementX;
@@ -77,7 +78,7 @@ struct Popup
 	bool isDoneMoving();
 	int getXOffset();
 	int getYOffset();
-	int getAlpha(int maxAlpha=OPAQUE);
+	double getAlpha(double maxAlpha=1.);
 	int getXDisplacement();
 	int getYDisplacement();
 };

src/g_shared/sbarinfo_commands.cpp

@@ -48,7 +48,7 @@ class CommandDrawImage : public SBarInfoCommandFlowControl
 			translatable(false), type(NORMAL_IMAGE), image(-1), maxwidth(-1),
 			maxheight(-1), spawnScaleX(1.0f), spawnScaleY(1.0f), flags(0),
 			applyscale(false), offset(static_cast<Offset> (TOP|LEFT)),
-			texture(NULL), alpha(OPAQUE)
+			texture(NULL), alpha(1.)
 		{
 		}
 
@@ -63,7 +63,7 @@ class CommandDrawImage : public SBarInfoCommandFlowControl
 			int w = maxwidth, h = maxheight;
 			
 			// We must calculate this per frame in order to prevent glitches with cl_capfps true.
-			fixed_t frameAlpha = FixedMul(block->Alpha(), alpha);
+			double frameAlpha = block->Alpha() * alpha;
 			
 			if(flags & DI_DRAWINBOX)
 			{
@@ -234,7 +234,7 @@ class CommandDrawImage : public SBarInfoCommandFlowControl
 			SBarInfoCommandFlowControl::Tick(block, statusBar, hudChanged);
 
 			texture = NULL;
-			alpha = OPAQUE;
+			alpha = 1.;
 			if (applyscale)
 			{
 				spawnScaleX = spawnScaleY = 1.0f;
@@ -282,7 +282,7 @@ class CommandDrawImage : public SBarInfoCommandFlowControl
 					if (harmor->Slots[armorType] > 0 && harmor->SlotsIncrement[armorType] > 0)
 					{
 						//combine the alpha values
-						alpha = int(alpha * MIN(1., harmor->Slots[armorType] / harmor->SlotsIncrement[armorType]));
+						alpha *= MIN(1., harmor->Slots[armorType] / harmor->SlotsIncrement[armorType]);
 						texture = statusBar->Images[image];
 					}
 					else
@@ -350,7 +350,7 @@ class CommandDrawImage : public SBarInfoCommandFlowControl
 		Offset				offset;
 
 		FTexture			*texture;
-		int					alpha;
+		double					alpha;
 };
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -641,7 +641,7 @@ class CommandDrawSwitchableImage : public CommandDrawImage
 
 				// Since we're not going to call our parent's tick() method,
 				// be sure to set the alpha value properly.
-				alpha = FRACUNIT;
+				alpha = 1.;
 				return;
 			}
 			CommandDrawImage::Tick(block, statusBar, hudChanged);
@@ -1641,9 +1641,9 @@ class CommandDrawSelectedInventory : public CommandDrawImage, private CommandDra
 				}
 				else
 				{
-					if(itemflash && itemflashFade)
+					if(itemflash && itemflashFade != 0)
 					{
-						fixed_t flashAlpha = FixedMul(block->Alpha(), itemflashFade);
+						double flashAlpha = block->Alpha() * itemflashFade;
 						statusBar->DrawGraphic(statusBar->Images[statusBar->invBarOffset + imgCURSOR], imgx-4, imgy+2, block->XOffset(), block->YOffset(), flashAlpha, block->FullScreenOffsets(),
 							translatable, false, offset);
 					}
@@ -1736,7 +1736,7 @@ class CommandDrawSelectedInventory : public CommandDrawImage, private CommandDra
 				artiflashTick--;
 			if(itemflashFade > 0)
 			{
-				itemflashFade -= FRACUNIT/14;
+				itemflashFade -= 1./14;
 				if(itemflashFade < 0)
 					itemflashFade = 0;
 			}
@@ -1747,7 +1747,7 @@ class CommandDrawSelectedInventory : public CommandDrawImage, private CommandDra
 			CommandDrawNumber::Tick(block, statusBar, hudChanged);
 		}
 
-		static void	Flash() { artiflashTick = 4; itemflashFade = FRACUNIT*3/4; }
+		static void	Flash() { artiflashTick = 4; itemflashFade = 0.75; }
 	protected:
 		bool	alternateOnEmpty;
 		bool	artiflash;
@@ -1755,10 +1755,10 @@ class CommandDrawSelectedInventory : public CommandDrawImage, private CommandDra
 		bool	itemflash;
 
 		static int		artiflashTick;
-		static fixed_t	itemflashFade;
+		static double	itemflashFade;
 };
 int CommandDrawSelectedInventory::artiflashTick = 0;
-int CommandDrawSelectedInventory::itemflashFade = FRACUNIT*3/4;
+double CommandDrawSelectedInventory::itemflashFade = 0.75;
 
 void DSBarInfo::FlashItem(const PClass *itemtype)
 {
@@ -2110,9 +2110,9 @@ class CommandDrawInventoryBar : public SBarInfoCommand
 		{
 			int spacing = GetCounterSpacing(statusBar);
 		
-			int bgalpha = block->Alpha();
+			double bgalpha = block->Alpha();
 			if(translucent)
-				bgalpha = fixed_t(block->Alpha() * HX_SHADOW);
+				bgalpha *= HX_SHADOW;
 		
 			AInventory *item;
 			unsigned int i = 0;
@@ -2492,10 +2492,10 @@ class CommandDrawBar : public SBarInfoCommand
 			FTexture *fg = statusBar->Images[foreground];
 			FTexture *bg = (background != -1) ? statusBar->Images[background] : NULL;
 
-			fixed_t value = drawValue;
+			double value = drawValue;
 			if(border != 0)
 			{
-				value = FRACUNIT - value; //invert since the new drawing method requires drawing the bg on the fg.
+				value = 1. - value; //invert since the new drawing method requires drawing the bg on the fg.
 
 				//Draw the whole foreground
 				statusBar->DrawGraphic(fg, this->x, this->y, block->XOffset(), block->YOffset(), block->Alpha(), block->FullScreenOffsets());
@@ -2506,27 +2506,27 @@ class CommandDrawBar : public SBarInfoCommand
 				if (bg != NULL && bg->GetScaledWidth() == fg->GetScaledWidth() && bg->GetScaledHeight() == fg->GetScaledHeight())
 					statusBar->DrawGraphic(bg, this->x, this->y, block->XOffset(), block->YOffset(), block->Alpha(), block->FullScreenOffsets());
 				else
-					statusBar->DrawGraphic(fg, this->x, this->y, block->XOffset(), block->YOffset(), block->Alpha(), block->FullScreenOffsets(), false, false, 0, false, -1, -1, 0, 0, 0, 0, true);
+					statusBar->DrawGraphic(fg, this->x, this->y, block->XOffset(), block->YOffset(), block->Alpha(), block->FullScreenOffsets(), false, false, 0, false, -1, -1, nulclip, true);
 			}
 		
 			// {cx, cy, cr, cb}
-			fixed_t clip[4] = {0, 0, 0, 0};
+			double Clip[4] = {0, 0, 0, 0};
 		
-			fixed_t sizeOfImage = (horizontal ? fg->GetScaledWidth()-border*2 : fg->GetScaledHeight()-border*2)<<FRACBITS;
-			clip[(!horizontal)|((horizontal ? !reverse : reverse)<<1)] = sizeOfImage - FixedMul(sizeOfImage, value);
+			int sizeOfImage = (horizontal ? fg->GetScaledWidth()-border*2 : fg->GetScaledHeight()-border*2);
+			Clip[(!horizontal)|((horizontal ? !reverse : reverse)<<1)] = sizeOfImage - sizeOfImage *value;
 			// Draw background
 			if(border != 0)
 			{
 				for(unsigned int i = 0;i < 4;i++)
-					clip[i] += border<<FRACBITS;
+					Clip[i] += border;
 		
 				if (bg != NULL && bg->GetScaledWidth() == fg->GetScaledWidth() && bg->GetScaledHeight() == fg->GetScaledHeight())
-					statusBar->DrawGraphic(bg, this->x, this->y, block->XOffset(), block->YOffset(), block->Alpha(), block->FullScreenOffsets(), false, false, 0, false, -1, -1, clip[0], clip[1], clip[2], clip[3]);
+					statusBar->DrawGraphic(bg, this->x, this->y, block->XOffset(), block->YOffset(), block->Alpha(), block->FullScreenOffsets(), false, false, 0, false, -1, -1, Clip);
 				else
-					statusBar->DrawGraphic(fg, this->x, this->y, block->XOffset(), block->YOffset(), block->Alpha(), block->FullScreenOffsets(), false, false, 0, false, -1, -1, clip[0], clip[1], clip[2], clip[3], true);
+					statusBar->DrawGraphic(fg, this->x, this->y, block->XOffset(), block->YOffset(), block->Alpha(), block->FullScreenOffsets(), false, false, 0, false, -1, -1, Clip, true);
 			}
 			else
-				statusBar->DrawGraphic(fg, this->x, this->y, block->XOffset(), block->YOffset(), block->Alpha(), block->FullScreenOffsets(), false, false, 0, false, -1, -1, clip[0], clip[1], clip[2], clip[3]);
+				statusBar->DrawGraphic(fg, this->x, this->y, block->XOffset(), block->YOffset(), block->Alpha(), block->FullScreenOffsets(), false, false, 0, false, -1, -1, Clip);
 		}
 		void	Parse(FScanner &sc, bool fullScreenOffsets)
 		{
@@ -2651,7 +2651,7 @@ class CommandDrawBar : public SBarInfoCommand
 		}
 		void	Tick(const SBarInfoMainBlock *block, const DSBarInfo *statusBar, bool hudChanged)
 		{
-			fixed_t value = 0;
+			double value = 0;
 			int max = 0;
 			switch(type)
 			{
@@ -2791,9 +2791,7 @@ class CommandDrawBar : public SBarInfoCommand
 
 			if(max != 0 && value > 0)
 			{
-				value = (value << FRACBITS) / max;
-				if(value > FRACUNIT)
-					value = FRACUNIT;
+				value = MIN(value / max, 1.);
 			}
 			else
 				value = 0;
@@ -2802,14 +2800,14 @@ class CommandDrawBar : public SBarInfoCommand
 				// [BL] Since we used a percentage (in order to get the most fluid animation)
 				//      we need to establish a cut off point so the last pixel won't hang as the animation slows
 				if(pixel == -1 && statusBar->Images[foreground])
-					pixel = MAX(1, FRACUNIT/statusBar->Images[foreground]->GetWidth());
+					pixel = MAX(1., 1./statusBar->Images[foreground]->GetWidth());
 
-				if(abs(drawValue - value) < pixel)
+				if(fabs(drawValue - value) < pixel)
 					drawValue = value;
-				else if(value < drawValue)
-					drawValue -= clamp<fixed_t>((drawValue - value) >> 2, 1, FixedDiv(interpolationSpeed<<FRACBITS, FRACUNIT*100));
-				else if(drawValue < value)
-					drawValue += clamp<fixed_t>((value - drawValue) >> 2, 1, FixedDiv(interpolationSpeed<<FRACBITS, FRACUNIT*100));
+				else if (value < drawValue)
+					drawValue -= clamp<double>((drawValue - value) / 4, 1 / 65536., interpolationSpeed / 100.);
+				else if (drawValue < value)
+					drawValue += clamp<double>((value - drawValue) / 4, 1 / 65536., interpolationSpeed / 100.);
 			}
 			else
 				drawValue = value;
@@ -2883,8 +2881,8 @@ class CommandDrawBar : public SBarInfoCommand
 		SBarInfoCoordinate	y;
 
 		int					interpolationSpeed;
-		fixed_t				drawValue;
-		fixed_t				pixel;
+		double				drawValue;
+		double				pixel;
 };
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -3448,7 +3446,7 @@ class CommandAlpha : public SBarInfoMainBlock
 		void	Parse(FScanner &sc, bool fullScreenOffsets)
 		{
 			sc.MustGetToken(TK_FloatConst);
-			alpha = fixed_t(FRACUNIT * sc.Float);
+			alpha = sc.Float;
 
 			// We don't want to allow all the options of a regular main block
 			// so skip to the SBarInfoCommandFlowControl.

src/g_shared/shared_hud.cpp

@@ -116,7 +116,7 @@ static FTexture * invgems[4];				// Inventory arrows
 static int hudwidth, hudheight;				// current width/height for HUD display
 static int statspace;
 
-void AM_GetPosition(fixed_t & x, fixed_t & y);
+DVector2 AM_GetPosition();
 
 
 FTextureID GetHUDIcon(PClassInventory *cls)
@@ -766,7 +766,7 @@ static void DrawInventory(player_t * CPlayer, int x,int y)
 
 				if (AltIcon.Exists() && (rover->Icon.isValid() || AltIcon.isValid()) )
 				{
-					int trans = rover==CPlayer->mo->InvSel ? OPAQUE : 0x6666;
+					int trans = rover==CPlayer->mo->InvSel ? 0x10000 : 0x6666;
 
 					DrawImageToBox(TexMan[AltIcon.isValid()? AltIcon : rover->Icon], x, y, 19, 25, trans);
 					if (rover->Amount>1)
@@ -818,23 +818,20 @@ static void DrawFrags(player_t * CPlayer, int x, int y)
 
 static void DrawCoordinates(player_t * CPlayer)
 {
-	fixed_t x;
-	fixed_t y;
-	fixed_t z;
+	DVector3 pos;
 	char coordstr[18];
 	int h = SmallFont->GetHeight()+1;
 
 	
 	if (!map_point_coordinates || !automapactive) 
 	{
-		x=CPlayer->mo->_f_X();
-		y=CPlayer->mo->_f_Y();                     
-		z=CPlayer->mo->_f_Z();
+		pos = CPlayer->mo->Pos();
 	}
 	else 
 	{
-		AM_GetPosition(x,y);
-		z = P_PointInSector(x, y)->floorplane.ZatPoint(x, y);
+		DVector2 apos = AM_GetPosition();
+		double z = P_PointInSector(apos)->floorplane.ZatPoint(apos);
+		pos = DVector3(apos, z);
 	}
 
 	int vwidth = con_scaletext==0? SCREENWIDTH : SCREENWIDTH/2;
@@ -842,17 +839,17 @@ static void DrawCoordinates(player_t * CPlayer)
 	int xpos = vwidth - SmallFont->StringWidth("X: -00000")-6;
 	int ypos = 18;
 
-	mysnprintf(coordstr, countof(coordstr), "X: %d", x>>FRACBITS);
+	mysnprintf(coordstr, countof(coordstr), "X: %d", int(pos.X));
 	screen->DrawText(SmallFont, hudcolor_xyco, xpos, ypos, coordstr,
 		DTA_KeepRatio, true,
 		DTA_VirtualWidth, vwidth, DTA_VirtualHeight, vheight, TAG_DONE);
 
-	mysnprintf(coordstr, countof(coordstr), "Y: %d", y>>FRACBITS);
+	mysnprintf(coordstr, countof(coordstr), "Y: %d", int(pos.Y));
 	screen->DrawText(SmallFont, hudcolor_xyco, xpos, ypos+h, coordstr,
 		DTA_KeepRatio, true,
 		DTA_VirtualWidth, vwidth, DTA_VirtualHeight, vheight, TAG_DONE);
 
-	mysnprintf(coordstr, countof(coordstr), "Z: %d", z>>FRACBITS);
+	mysnprintf(coordstr, countof(coordstr), "Z: %d", int(pos.Z));
 	screen->DrawText(SmallFont, hudcolor_xyco, xpos, ypos+2*h, coordstr,
 		DTA_KeepRatio, true,
 		DTA_VirtualWidth, vwidth, DTA_VirtualHeight, vheight, TAG_DONE);
@@ -933,7 +930,7 @@ static void DrawTime()
 	const int width  = SmallFont->GetCharWidth('0') * characterCount + 2; // small offset from screen's border
 	const int height = SmallFont->GetHeight();
 
-	DrawHudText(SmallFont, hud_timecolor, timeString, hudwidth - width, height, OPAQUE);
+	DrawHudText(SmallFont, hud_timecolor, timeString, hudwidth - width, height, 0x10000);
 }
 
 static bool IsAltHUDTextVisible()
@@ -991,7 +988,7 @@ static void DrawLatency()
 	const int width = SmallFont->GetCharWidth('0') * characterCount + 2; // small offset from screen's border
 	const int height = SmallFont->GetHeight() * (ST_IsTimeVisible() ? 2 : 1);
 
-	DrawHudText(SmallFont, color, tempstr, hudwidth - width, height, OPAQUE);
+	DrawHudText(SmallFont, color, tempstr, hudwidth - width, height, 0x10000);
 }
 
 bool ST_IsLatencyVisible()
@@ -1082,7 +1079,7 @@ void DrawHUD()
 		{
 			seconds = Tics2Seconds(level.totaltime);
 			mysnprintf(printstr, countof(printstr), "%02i:%02i:%02i", seconds/3600, (seconds%3600)/60, seconds%60);
-			DrawHudText(SmallFont, hudcolor_ttim, printstr, hudwidth-length, bottom, OPAQUE);
+			DrawHudText(SmallFont, hudcolor_ttim, printstr, hudwidth-length, bottom, 0x10000);
 			bottom -= fonth;
 		}
 
@@ -1092,14 +1089,14 @@ void DrawHUD()
 			{
 				seconds = Tics2Seconds(level.time);
 				mysnprintf(printstr, countof(printstr), "%02i:%02i:%02i", seconds/3600, (seconds%3600)/60, seconds%60);
-				DrawHudText(SmallFont, hudcolor_time, printstr, hudwidth-length, bottom, OPAQUE);
+				DrawHudText(SmallFont, hudcolor_time, printstr, hudwidth-length, bottom, 0x10000);
 				bottom -= fonth;
 			}
 
 			// Single level time for hubs
 			seconds= Tics2Seconds(level.maptime);
 			mysnprintf(printstr, countof(printstr), "%02i:%02i:%02i", seconds/3600, (seconds%3600)/60, seconds%60);
-			DrawHudText(SmallFont, hudcolor_ltim, printstr, hudwidth-length, bottom, OPAQUE);
+			DrawHudText(SmallFont, hudcolor_ltim, printstr, hudwidth-length, bottom, 0x10000);
 		}
 
 		ST_FormatMapName(mapname);

src/g_shared/shared_sbar.cpp

@@ -57,8 +57,8 @@
 
 #include "../version.h"
 
-#define XHAIRSHRINKSIZE		(FRACUNIT/18)
-#define XHAIRPICKUPSIZE		(FRACUNIT*2+XHAIRSHRINKSIZE)
+#define XHAIRSHRINKSIZE		(1./18)
+#define XHAIRPICKUPSIZE		(2+XHAIRSHRINKSIZE)
 #define POWERUPICONSIZE		32
 
 IMPLEMENT_POINTY_CLASS(DBaseStatusBar)
@@ -233,7 +233,7 @@ DBaseStatusBar::DBaseStatusBar (int reltop, int hres, int vres)
 	CompleteBorder = false;
 	Centering = false;
 	FixedOrigin = false;
-	CrosshairSize = FRACUNIT;
+	CrosshairSize = 1.;
 	RelTop = reltop;
 	memset(Messages, 0, sizeof(Messages));
 	Displacement = 0;
@@ -287,7 +287,7 @@ void DBaseStatusBar::SetScaled (bool scale, bool force)
 		::ST_Y = ST_Y;
 		if (RelTop > 0)
 		{
-			Displacement = ((ST_Y * VirticalResolution / SCREENHEIGHT) - (VirticalResolution - RelTop))*FRACUNIT/RelTop;
+			Displacement = double((ST_Y * VirticalResolution / SCREENHEIGHT) - (VirticalResolution - RelTop))/RelTop;
 		}
 		else
 		{
@@ -377,12 +377,12 @@ void DBaseStatusBar::Tick ()
 		}
 
 		// If the crosshair has been enlarged, shrink it.
-		if (CrosshairSize > FRACUNIT)
+		if (CrosshairSize > 1.)
 		{
 			CrosshairSize -= XHAIRSHRINKSIZE;
-			if (CrosshairSize < FRACUNIT)
+			if (CrosshairSize < 1.)
 			{
-				CrosshairSize = FRACUNIT;
+				CrosshairSize = 1.;
 			}
 		}
 	}
@@ -567,27 +567,6 @@ void DBaseStatusBar::DrawDimImage (FTexture *img,
 	}
 }
 
-//---------------------------------------------------------------------------
-//
-// PROC DrawImage
-//
-// Draws a translucent image with the status bar's upper-left corner as the
-// origin.
-//
-//---------------------------------------------------------------------------
-
-void DBaseStatusBar::DrawFadedImage (FTexture *img,
-	int x, int y, fixed_t shade) const
-{
-	if (img != NULL)
-	{
-		screen->DrawTexture (img, x + ST_X, y + ST_Y,
-			DTA_Alpha, shade,
-			DTA_Bottom320x200, Scaled,
-			TAG_DONE);
-	}
-}
-
 //---------------------------------------------------------------------------
 //
 // PROC DrawPartialImage
@@ -1113,7 +1092,7 @@ void DBaseStatusBar::DrawCrosshair ()
 	static int palettecolor = 0;
 
 	DWORD color;
-	fixed_t size;
+	double size;
 	int w, h;
 
 	// Don't draw the crosshair in chasecam mode
@@ -1130,19 +1109,19 @@ void DBaseStatusBar::DrawCrosshair ()
 
 	if (crosshairscale)
 	{
-		size = SCREENHEIGHT * FRACUNIT / 200;
+		size = SCREENHEIGHT / 200.;
 	}
 	else
 	{
-		size = FRACUNIT;
+		size = 1.;
 	}
 
 	if (crosshairgrow)
 	{
-		size = FixedMul (size, CrosshairSize);
+		size *= CrosshairSize;
 	}
-	w = (CrosshairImage->GetWidth() * size) >> FRACBITS;
-	h = (CrosshairImage->GetHeight() * size) >> FRACBITS;
+	w = int(CrosshairImage->GetWidth() * size);
+	h = int(CrosshairImage->GetHeight() * size);
 
 	if (crosshairhealth)
 	{
@@ -1255,7 +1234,6 @@ void DBaseStatusBar::Draw (EHudState state)
 	{ // Draw current coordinates
 		int height = SmallFont->GetHeight();
 		char labels[3] = { 'X', 'Y', 'Z' };
-		fixed_t *value;
 		int i;
 
 		int vwidth;
@@ -1286,10 +1264,10 @@ void DBaseStatusBar::Draw (EHudState state)
 				y -= height * 2;
 		}
 
-		fixedvec3 pos = CPlayer->mo->_f_Pos();
-		for (i = 2, value = &pos.z; i >= 0; y -= height, --value, --i)
+		DVector3 pos = CPlayer->mo->Pos();
+		for (i = 2; i >= 0; y -= height, --i)
 		{
-			mysnprintf (line, countof(line), "%c: %d", labels[i], *value >> FRACBITS);
+			mysnprintf (line, countof(line), "%c: %d", labels[i], int(pos[i]));
 			screen->DrawText (SmallFont, CR_GREEN, xpos, y, line, 
 				DTA_KeepRatio, true,
 				DTA_VirtualWidth, vwidth, DTA_VirtualHeight, vheight, 				

src/g_skill.cpp

@@ -59,10 +59,12 @@ void FMapInfoParser::ParseSkill ()
 	bool thisisdefault = false;
 	bool acsreturnisset = false;
 
-	skill.AmmoFactor = FRACUNIT;
-	skill.DoubleAmmoFactor = 2*FRACUNIT;
-	skill.DropAmmoFactor = -1;
+	skill.AmmoFactor = 1.;
+	skill.DoubleAmmoFactor = 2.;
+	skill.DropAmmoFactor = -1.;
 	skill.DamageFactor = 1.;
+	skill.ArmorFactor = 1.;
+	skill.HealthFactor = 1.;
 	skill.FastMonsters = false;
 	skill.SlowMonsters = false;
 	skill.DisableCheats = false;
@@ -71,7 +73,7 @@ void FMapInfoParser::ParseSkill ()
 	skill.AutoUseHealth = false;
 	skill.RespawnCounter = 0;
 	skill.RespawnLimit = 0;
-	skill.Aggressiveness = FRACUNIT;
+	skill.Aggressiveness = 1.;
 	skill.SpawnFilter = 0;
 	skill.ACSReturn = 0;
 	skill.MustConfirm = false;
@@ -79,12 +81,10 @@ void FMapInfoParser::ParseSkill ()
 	skill.TextColor = "";
 	skill.Replace.Clear();
 	skill.Replaced.Clear();
-	skill.MonsterHealth = FRACUNIT;
-	skill.FriendlyHealth = FRACUNIT;
+	skill.MonsterHealth = 1.;
+	skill.FriendlyHealth = 1.;
 	skill.NoPain = false;
-	skill.ArmorFactor = FRACUNIT;
 	skill.Infighting = 0;
-	skill.HealthFactor = FRACUNIT;
 
 	sc.MustGetString();
 	skill.Name = sc.String;
@@ -97,19 +97,19 @@ void FMapInfoParser::ParseSkill ()
 		{
 			ParseAssign();
 			sc.MustGetFloat ();
-			skill.AmmoFactor = FLOAT2FIXED(sc.Float);
+			skill.AmmoFactor = sc.Float;
 		}
 		else if (sc.Compare ("doubleammofactor"))
 		{
 			ParseAssign();
 			sc.MustGetFloat ();
-			skill.DoubleAmmoFactor = FLOAT2FIXED(sc.Float);
+			skill.DoubleAmmoFactor = sc.Float;
 		}
 		else if (sc.Compare ("dropammofactor"))
 		{
 			ParseAssign();
 			sc.MustGetFloat ();
-			skill.DropAmmoFactor = FLOAT2FIXED(sc.Float);
+			skill.DropAmmoFactor = sc.Float;
 		}
 		else if (sc.Compare ("damagefactor"))
 		{
@@ -157,7 +157,7 @@ void FMapInfoParser::ParseSkill ()
 		{
 			ParseAssign();
 			sc.MustGetFloat ();
-			skill.Aggressiveness = FRACUNIT - FLOAT2FIXED(clamp(sc.Float, 0.,1.));
+			skill.Aggressiveness = 1. - clamp(sc.Float, 0.,1.);
 		}
 		else if (sc.Compare("SpawnFilter"))
 		{
@@ -250,13 +250,13 @@ void FMapInfoParser::ParseSkill ()
 		{
 			ParseAssign();
 			sc.MustGetFloat();
-			skill.MonsterHealth = FLOAT2FIXED(sc.Float);				
+			skill.MonsterHealth = sc.Float;	
 		}
 		else if (sc.Compare("FriendlyHealth"))
 		{
 			ParseAssign();
 			sc.MustGetFloat();
-			skill.FriendlyHealth = FLOAT2FIXED(sc.Float);
+			skill.FriendlyHealth = sc.Float;
 		}
 		else if (sc.Compare("NoPain"))
 		{
@@ -266,13 +266,13 @@ void FMapInfoParser::ParseSkill ()
 		{
 			ParseAssign();
 			sc.MustGetFloat();
-			skill.ArmorFactor = FLOAT2FIXED(sc.Float);
+			skill.ArmorFactor = sc.Float;
 		}
 		else if (sc.Compare("HealthFactor"))
 		{
 			ParseAssign();
 			sc.MustGetFloat();
-			skill.HealthFactor = FLOAT2FIXED(sc.Float);
+			skill.HealthFactor = sc.Float;
 		}
 		else if (sc.Compare("NoInfighting"))
 		{
@@ -341,16 +341,6 @@ int G_SkillProperty(ESkillProperty prop)
 	{
 		switch(prop)
 		{
-		case SKILLP_AmmoFactor:
-			if (dmflags2 & DF2_YES_DOUBLEAMMO)
-			{
-				return AllSkills[gameskill].DoubleAmmoFactor;
-			}
-			return AllSkills[gameskill].AmmoFactor;
-
-		case SKILLP_DropAmmoFactor:
-			return AllSkills[gameskill].DropAmmoFactor;
-
 		case SKILLP_FastMonsters:
 			return AllSkills[gameskill].FastMonsters  || (dmflags & DF_FAST_MONSTERS);
 
@@ -365,9 +355,6 @@ int G_SkillProperty(ESkillProperty prop)
 		case SKILLP_RespawnLimit:
 			return AllSkills[gameskill].RespawnLimit;
 
-		case SKILLP_Aggressiveness:
-			return AllSkills[gameskill].Aggressiveness;
-
 		case SKILLP_DisableCheats:
 			return AllSkills[gameskill].DisableCheats;
 
@@ -386,21 +373,9 @@ int G_SkillProperty(ESkillProperty prop)
 		case SKILLP_ACSReturn:
 			return AllSkills[gameskill].ACSReturn;
 		
-		case SKILLP_MonsterHealth:
-			return AllSkills[gameskill].MonsterHealth;
-
-		case SKILLP_FriendlyHealth:
-			return AllSkills[gameskill].FriendlyHealth;
-
 		case SKILLP_NoPain:			
 			return AllSkills[gameskill].NoPain;	
 
-		case SKILLP_ArmorFactor:
-			return AllSkills[gameskill].ArmorFactor;
-
-		case SKILLP_HealthFactor:
-			return AllSkills[gameskill].HealthFactor;
-
 		case SKILLP_Infight:
 			// This property also needs to consider the level flags for the same info.
 			if (level.flags2 & LEVEL2_TOTALINFIGHTING) return 1;
@@ -425,9 +400,34 @@ double G_SkillProperty(EFSkillProperty prop)
 	{
 		switch (prop)
 		{
+		case SKILLP_AmmoFactor:
+			if (dmflags2 & DF2_YES_DOUBLEAMMO)
+			{
+				return AllSkills[gameskill].DoubleAmmoFactor;
+			}
+			return AllSkills[gameskill].AmmoFactor;
+
+		case SKILLP_DropAmmoFactor:
+			return AllSkills[gameskill].DropAmmoFactor;
+
+		case SKILLP_ArmorFactor:
+			return AllSkills[gameskill].ArmorFactor;
+
+		case SKILLP_HealthFactor:
+			return AllSkills[gameskill].HealthFactor;
+
 		case SKILLP_DamageFactor:
 			return AllSkills[gameskill].DamageFactor;
-			break;
+
+		case SKILLP_Aggressiveness:
+			return AllSkills[gameskill].Aggressiveness;
+
+		case SKILLP_MonsterHealth:
+			return AllSkills[gameskill].MonsterHealth;
+
+		case SKILLP_FriendlyHealth:
+			return AllSkills[gameskill].FriendlyHealth;
+
 		}
 	}
 	return 0;

src/g_strife/a_entityboss.cpp

@@ -77,7 +77,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_SpawnEntity)
 {
 	PARAM_ACTION_PROLOGUE;
 
-	AActor *entity = Spawn("EntityBoss", self->PosPlusZ(70), ALLOW_REPLACE);
+	AActor *entity = Spawn("EntityBoss", self->PosPlusZ(70.), ALLOW_REPLACE);
 	if (entity != NULL)
 	{
 		entity->Angles.Yaw = self->Angles.Yaw;

src/g_strife/a_inquisitor.cpp

@@ -127,7 +127,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_TossArm)
 {
 	PARAM_ACTION_PROLOGUE;
 
-	AActor *foo = Spawn("InquisitorArm", self->PosPlusZ(24), ALLOW_REPLACE);
+	AActor *foo = Spawn("InquisitorArm", self->PosPlusZ(24.), ALLOW_REPLACE);
 	foo->Angles.Yaw = self->Angles.Yaw - 90. + pr_inq.Random2() * (360./1024.);
 	foo->VelFromAngle(foo->Speed / 8);
 	foo->Vel.Z = pr_inq() / 64.;

src/g_strife/a_programmer.cpp

@@ -130,7 +130,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_SpawnProgrammerBase)
 {
 	PARAM_ACTION_PROLOGUE;
 
-	AActor *foo = Spawn("ProgrammerBase", self->PosPlusZ(24), ALLOW_REPLACE);
+	AActor *foo = Spawn("ProgrammerBase", self->PosPlusZ(24.), ALLOW_REPLACE);
 	if (foo != NULL)
 	{
 		foo->Angles.Yaw = self->Angles.Yaw + 180. + pr_prog.Random2() * (360. / 1024.);

src/g_strife/a_strifestuff.cpp

@@ -251,7 +251,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_TossGib)
 	PARAM_ACTION_PROLOGUE;
 
 	const char *gibtype = (self->flags & MF_NOBLOOD) ? "Junk" : "Meat";
-	AActor *gib = Spawn (gibtype, self->PosPlusZ(24), ALLOW_REPLACE);
+	AActor *gib = Spawn (gibtype, self->PosPlusZ(24.), ALLOW_REPLACE);
 
 	if (gib == NULL)
 	{

src/g_strife/a_strifeweapons.cpp

@@ -667,7 +667,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_Burnination)
 			pos = self->Pos();
 		}
 
-		AActor *drop = Spawn<APhosphorousFire> (pos.X, pos.Y, self->Z() + 4., ALLOW_REPLACE);
+		AActor *drop = Spawn<APhosphorousFire> (DVector3(pos, self->Z() + 4.), ALLOW_REPLACE);
 		if (drop != NULL)
 		{
 			drop->Vel.X = self->Vel.X + pr_phburn.Random2 (7);

src/g_strife/strife_sbar.cpp

@@ -576,7 +576,7 @@ private:
 		int bars = (CurrentPop == POP_Status) ? imgINVPOP : imgINVPOP2;
 		int back = (CurrentPop == POP_Status) ? imgINVPBAK : imgINVPBAK2;
 		// Extrapolate the height of the popscreen for smoother movement
-		int height = clamp<int> (PopHeight + FixedMul (r_TicFrac, PopHeightChange), -POP_HEIGHT, 0);
+		int height = clamp<int> (PopHeight + int(r_TicFracF * PopHeightChange), -POP_HEIGHT, 0);
 
 		xscale = CleanXfac;
 		yscale = CleanYfac;
@@ -627,7 +627,7 @@ private:
 			if (KeyPopScroll > 0)
 			{
 				// Extrapolate the scroll position for smoother scrolling
-				int scroll = MAX<int> (0,KeyPopScroll - FixedMul (r_TicFrac, 280/KEY_TIME));
+				int scroll = MAX<int> (0,KeyPopScroll - int(r_TicFracF * (280./KEY_TIME)));
 				pos -= 10;
 				leftcol = leftcol - 280 + scroll;
 			}

src/info.h

@@ -37,7 +37,7 @@
 #include <stddef.h>
 #if !defined(_WIN32)
 #include <inttypes.h>		// for intptr_t
-#elif !defined(_MSC_VER)
+#else
 #include <stdint.h>			// for mingw
 #endif
 

src/intermission/intermission.cpp

@@ -262,7 +262,7 @@ void DIntermissionScreenFader::Drawer ()
 	{
 		double factor = clamp(double(mTicker) / mDuration, 0., 1.);
 		if (mType == FADE_In) factor = 1.0 - factor;
-		int color = MAKEARGB(xs_RoundToInt(factor*255), 0,0,0);
+		int color = MAKEARGB(int(factor*255), 0,0,0);
 
 		if (screen->Begin2D(false))
 		{

src/intermission/intermission_parse.cpp

@@ -113,7 +113,7 @@ bool FIntermissionAction::ParseKey(FScanner &sc)
 		if (!sc.CheckToken('-'))
 		{
 			sc.MustGetFloat();
-			mDuration = xs_RoundToInt(sc.Float*TICRATE);
+			mDuration = int(sc.Float*TICRATE);
 		}
 		else
 		{
@@ -329,7 +329,7 @@ bool FIntermissionActionTextscreen::ParseKey(FScanner &sc)
 		if (!sc.CheckToken('-'))
 		{
 			sc.MustGetFloat();
-			mTextDelay = xs_RoundToInt(sc.Float*TICRATE);
+			mTextDelay = int(sc.Float*TICRATE);
 		}
 		else
 		{
@@ -438,7 +438,7 @@ bool FIntermissionActionScroller::ParseKey(FScanner &sc)
 		if (!sc.CheckToken('-'))
 		{
 			sc.MustGetFloat();
-			mScrollDelay = xs_RoundToInt(sc.Float*TICRATE);
+			mScrollDelay = int(sc.Float*TICRATE);
 		}
 		else
 		{
@@ -453,7 +453,7 @@ bool FIntermissionActionScroller::ParseKey(FScanner &sc)
 		if (!sc.CheckToken('-'))
 		{
 			sc.MustGetFloat();
-			mScrollTime = xs_RoundToInt(sc.Float*TICRATE);
+			mScrollTime = int(sc.Float*TICRATE);
 		}
 		else
 		{

src/menu/menu.cpp

@@ -78,7 +78,7 @@ FButtonStatus	MenuButtons[NUM_MKEYS];
 int				MenuButtonTickers[NUM_MKEYS];
 bool			MenuButtonOrigin[NUM_MKEYS];
 int				BackbuttonTime;
-fixed_t			BackbuttonAlpha;
+float			BackbuttonAlpha;
 static bool		MenuEnabled = true;
 
 
@@ -274,7 +274,7 @@ void DMenu::Drawer ()
 		}
 		else
 		{
-			screen->DrawTexture(tex, x, y, DTA_CleanNoMove, true, DTA_Alpha, BackbuttonAlpha, TAG_DONE);
+			screen->DrawTexture(tex, x, y, DTA_CleanNoMove, true, DTA_AlphaF, BackbuttonAlpha, TAG_DONE);
 		}
 	}
 }
@@ -680,12 +680,13 @@ void M_Ticker (void)
 		}
 		if (BackbuttonTime > 0)
 		{
-			if (BackbuttonAlpha < OPAQUE) BackbuttonAlpha += OPAQUE/10;
+			if (BackbuttonAlpha < 1.f) BackbuttonAlpha += .1f;
+			if (BackbuttonAlpha > 1.f) BackbuttonAlpha = 1.f;
 			BackbuttonTime--;
 		}
 		else
 		{
-			if (BackbuttonAlpha > 0) BackbuttonAlpha -= OPAQUE/10;
+			if (BackbuttonAlpha > 0) BackbuttonAlpha -= .1f;
 			if (BackbuttonAlpha < 0) BackbuttonAlpha = 0;
 		}
 	}

src/menu/playerdisplay.cpp

@@ -35,8 +35,6 @@
 #include "doomtype.h"
 #include "doomstat.h"
 #include "d_player.h"
-#include "tables.h"
-#include "m_fixed.h"
 #include "templates.h"
 #include "menu/menu.h"
 #include "colormatcher.h"
@@ -59,6 +57,22 @@
 
 struct FBackdropTexture : public FTexture
 {
+	enum
+	{
+		COS_SIZE = 256,
+		ANGLESHIFT = 24
+	};
+
+	static constexpr uint32_t DEGREES(double v)
+	{
+		return uint32_t((v)*(0x40000000 / 90.0));
+	}
+
+	static double TORAD(uint32_t x)
+	{
+		return x*(M_PI / 0x80000000);
+	}
+
 public:
 	FBackdropTexture();
 
@@ -68,12 +82,13 @@ public:
 	bool CheckModified();
 
 protected:
+	uint32_t costab[COS_SIZE];
 	BYTE Pixels[144*160];
 	static const Span DummySpan[2];
 	int LastRenderTic;
 
-	angle_t time1, time2, time3, time4;
-	angle_t t1ang, t2ang, z1ang, z2ang;
+	uint32_t time1, time2, time3, time4;
+	uint32_t t1ang, t2ang, z1ang, z2ang;
 
 	void Render();
 };
@@ -171,14 +186,19 @@ FBackdropTexture::FBackdropTexture()
 	WidthMask = 255;
 	LastRenderTic = 0;
 
-	time1 = ANGLE_1*180;
-	time2 = ANGLE_1*56;
-	time3 = ANGLE_1*99;
-	time4 = ANGLE_1*1;
-	t1ang = ANGLE_90;
+	for (int i = 0; i < COS_SIZE; ++i)
+	{
+		costab[i] = uint32_t(cos(i * (M_PI / (COS_SIZE / 2))) * 65536);
+	}
+
+	time1 = DEGREES(180);
+	time2 = DEGREES(56);
+	time3 = DEGREES(99);
+	time4 = DEGREES(1);
+	t1ang = DEGREES(90);
 	t2ang = 0;
 	z1ang = 0;
-	z2ang = ANGLE_90/2;
+	z2ang = DEGREES(45);
 }
 
 //=============================================================================
@@ -248,22 +268,23 @@ void FBackdropTexture::Render()
 
 	int x, y;
 
-	const angle_t a1add = ANGLE_1/2;
-	const angle_t a2add = ANGLE_MAX-ANGLE_1;
-	const angle_t a3add = ANGLE_1*5/7;
-	const angle_t a4add = ANGLE_MAX-ANGLE_1*4/3;
+	const DWORD a1add = DEGREES(0.5);
+	const DWORD a2add = DEGREES(359);
+	const DWORD a3add = DEGREES(5 / 7.f);
+	const DWORD a4add = DEGREES(358.66666);
 
-	const angle_t t1add = ANGLE_MAX-ANGLE_1*2;
-	const angle_t t2add = ANGLE_MAX-ANGLE_1*3+ANGLE_1/6;
-	const angle_t t3add = ANGLE_1*16/7;
-	const angle_t t4add = ANGLE_MAX-ANGLE_1*2/3;
-	const angle_t x1add = 5<<ANGLETOFINESHIFT;
-	const angle_t x2add = ANGLE_MAX-(13<<ANGLETOFINESHIFT);
-	const angle_t z1add = 3<<ANGLETOFINESHIFT;
-	const angle_t z2add = 4<<ANGLETOFINESHIFT;
+	const DWORD t1add = DEGREES(358);
+	const DWORD t2add = DEGREES(357.16666);
+	const DWORD t3add = DEGREES(2.285);
+	const DWORD t4add = DEGREES(359.33333);
+	const DWORD x1add = 5 * 524288;
+	const DWORD x2add = 0u - 13 * 524288;
+	const DWORD z1add = 3 * 524288;
+	const DWORD z2add = 4 * 524288;
 
-	angle_t a1, a2, a3, a4;
-	fixed_t c1, c2, c3, c4;
+
+	DWORD a1, a2, a3, a4;
+	SDWORD c1, c2, c3, c4;
 	DWORD tx, ty, tc, ts;
 	DWORD ux, uy, uc, us;
 	DWORD ltx, lty, lux, luy;
@@ -273,36 +294,36 @@ void FBackdropTexture::Render()
 	a3 = time3;
 	a4 = time4;
 
-	fixed_t z1 = (finecosine[z2ang>>ANGLETOFINESHIFT]>>2)+FRACUNIT/2;
-	fixed_t z2 = (finecosine[z1ang>>ANGLETOFINESHIFT]>>2)+FRACUNIT*3/4;
+	double z1 = (cos(TORAD(z2ang)) / 4 + 0.5) * (0x8000000);
+	double z2 = (cos(TORAD(z1ang)) / 4 + 0.75) * (0x8000000);
 
-	tc = MulScale5 (finecosine[t1ang>>ANGLETOFINESHIFT], z1);
-	ts = MulScale5 (finesine[t1ang>>ANGLETOFINESHIFT], z1);
-	uc = MulScale5 (finecosine[t2ang>>ANGLETOFINESHIFT], z2);
-	us = MulScale5 (finesine[t2ang>>ANGLETOFINESHIFT], z2);
+	tc = SDWORD(cos(TORAD(t1ang)) * z1);
+	ts = SDWORD(sin(TORAD(t1ang)) * z1);
+	uc = SDWORD(cos(TORAD(t2ang)) * z2);
+	us = SDWORD(sin(TORAD(t2ang)) * z2);
 	
-	ltx = -width/2*tc;
-	lty = -width/2*ts;
-	lux = -width/2*uc;
-	luy = -width/2*us;
+	ltx = -width / 2 * tc;
+	lty = -width / 2 * ts;
+	lux = -width / 2 * uc;
+	luy = -width / 2 * us;
 
 	for (y = 0; y < height; ++y)
 	{
 		a1 = time1;
 		a2 = time2;
-		c3 = finecosine[a3>>ANGLETOFINESHIFT];
-		c4 = finecosine[a4>>ANGLETOFINESHIFT];
-		tx = ltx - (y-height/2)*ts;
-		ty = lty + (y-height/2)*tc;
-		ux = lux - (y-height/2)*us;
-		uy = luy + (y-height/2)*uc;
+		c3 = SDWORD(cos(TORAD(a3)) * 65536.0);
+		c4 = SDWORD(cos(TORAD(a4)) * 65536.0);
+		tx = ltx - (y - height / 2)*ts;
+		ty = lty + (y - height / 2)*tc;
+		ux = lux - (y - height / 2)*us;
+		uy = luy + (y - height / 2)*uc;
 		for (x = 0; x < width; ++x)
 		{
-			c1 = finecosine[a1>>ANGLETOFINESHIFT];
-			c2 = finecosine[a2>>ANGLETOFINESHIFT];
-			from[x] = ((c1 + c2 + c3 + c4) >> (FRACBITS+3-7)) + 128	// plasma
-			 + pattern1[(tx>>27)+((ty>>22)&992)]					// rotozoomer 1
-			 + pattern2[(ux>>27)+((uy>>22)&992)];					// rotozoomer 2
+			c1 = costab[a1 >> ANGLESHIFT];
+			c2 = costab[a2 >> ANGLESHIFT];
+			from[x] = ((c1 + c2 + c3 + c4) >> (16 + 3 - 7)) + 128		// plasma
+				+ pattern1[(tx >> 27) + ((ty >> 22) & 992)]				// rotozoomer 1
+				+ pattern2[(ux >> 27) + ((uy >> 22) & 992)];			// rotozoomer 2
 			tx += tc;
 			ty += ts;
 			ux += uc;

src/menu/readthis.cpp

@@ -79,7 +79,7 @@ DReadThisMenu::DReadThisMenu(DMenu *parent)
 void DReadThisMenu::Drawer()
 {
 	FTexture *tex = NULL, *prevpic = NULL;
-	fixed_t alpha;
+	double alpha;
 
 	// Did the mapper choose a custom help page via MAPINFO?
 	if ((level.info != NULL) && level.info->F1Pic.Len() != 0)
@@ -99,12 +99,12 @@ void DReadThisMenu::Drawer()
 	}
 
 	screen->Dim(0, 1.0, 0,0, SCREENWIDTH, SCREENHEIGHT);
-	alpha = MIN<fixed_t> (Scale (gametic - mInfoTic, OPAQUE, TICRATE/3), OPAQUE);
-	if (alpha < OPAQUE && prevpic != NULL)
+	alpha = MIN((gametic - mInfoTic) * (3. / TICRATE), 1.);
+	if (alpha < 1. && prevpic != NULL)
 	{
 		screen->DrawTexture (prevpic, 0, 0, DTA_Fullscreen, true, TAG_DONE);
 	}
-	screen->DrawTexture (tex, 0, 0, DTA_Fullscreen, true, DTA_Alpha, alpha,	TAG_DONE);
+	screen->DrawTexture (tex, 0, 0, DTA_Fullscreen, true, DTA_AlphaF, alpha,	TAG_DONE);
 
 }
 

src/p_acs.cpp

@@ -3462,7 +3462,7 @@ void DLevelScript::ReplaceTextures (int fromnamei, int tonamei, int flags)
 	}
 }
 
-int DLevelScript::DoSpawn (int type, fixed_t x, fixed_t y, fixed_t z, int tid, int angle, bool force)
+int DLevelScript::DoSpawn (int type, const DVector3 &pos, int tid, DAngle angle, bool force)
 {
 	PClassActor *info = PClass::FindActor(FBehavior::StaticLookupString (type));
 	AActor *actor = NULL;
@@ -3478,14 +3478,14 @@ int DLevelScript::DoSpawn (int type, fixed_t x, fixed_t y, fixed_t z, int tid, i
 			return 0;
 		}
 
-		actor = Spawn (info, x, y, z, ALLOW_REPLACE);
+		actor = Spawn (info, pos, ALLOW_REPLACE);
 		if (actor != NULL)
 		{
 			ActorFlags2 oldFlags2 = actor->flags2;
 			actor->flags2 |= MF2_PASSMOBJ;
 			if (force || P_TestMobjLocation (actor))
 			{
-				actor->Angles.Yaw = angle * (360. / 256);
+				actor->Angles.Yaw = angle;
 				actor->tid = tid;
 				actor->AddToHash ();
 				if (actor->flags & MF_SPECIAL)
@@ -3506,6 +3506,12 @@ int DLevelScript::DoSpawn (int type, fixed_t x, fixed_t y, fixed_t z, int tid, i
 	return spawncount;
 }
 
+int DLevelScript::DoSpawn(int type, int x, int y, int z, int tid, int angle, bool force)
+{
+	return DoSpawn(type, DVector3(ACSToDouble(x), ACSToDouble(y), ACSToDouble(z)), tid, angle * (360. / 256), force);
+}
+
+
 int DLevelScript::DoSpawnSpot (int type, int spot, int tid, int angle, bool force)
 {
 	int spawned = 0;
@@ -3517,12 +3523,12 @@ int DLevelScript::DoSpawnSpot (int type, int spot, int tid, int angle, bool forc
 
 		while ( (aspot = iterator.Next ()) )
 		{
-			spawned += DoSpawn (type, aspot->_f_X(), aspot->_f_Y(), aspot->_f_Z(), tid, angle, force);
+			spawned += DoSpawn (type, aspot->Pos(), tid, angle * (360. / 256), force);
 		}
 	}
 	else if (activator != NULL)
 	{
-			spawned += DoSpawn (type, activator->_f_X(), activator->_f_Y(), activator->_f_Z(), tid, angle, force);
+		spawned += DoSpawn (type, activator->Pos(), tid, angle * (360. / 256), force);
 	}
 	return spawned;
 }
@@ -3538,12 +3544,12 @@ int DLevelScript::DoSpawnSpotFacing (int type, int spot, int tid, bool force)
 
 		while ( (aspot = iterator.Next ()) )
 		{
-			spawned += DoSpawn (type, aspot->_f_X(), aspot->_f_Y(), aspot->_f_Z(), tid, aspot->_f_angle() >> 24, force);
+			spawned += DoSpawn (type, aspot->Pos(), tid, aspot->Angles.Yaw, force);
 		}
 	}
 	else if (activator != NULL)
 	{
-			spawned += DoSpawn (type, activator->_f_X(), activator->_f_Y(), activator->_f_Z(), tid, activator->_f_angle() >> 24, force);
+			spawned += DoSpawn (type, activator->Pos(), tid, activator->Angles.Yaw, force);
 	}
 	return spawned;
 }
@@ -4762,15 +4768,15 @@ static int SetCVar(AActor *activator, const char *cvarname, int value, bool is_s
 	return 1;
 }
 
-static bool DoSpawnDecal(AActor *actor, const FDecalTemplate *tpl, int flags, angle_t angle, fixed_t zofs, fixed_t distance)
+static bool DoSpawnDecal(AActor *actor, const FDecalTemplate *tpl, int flags, DAngle angle, double zofs, double distance)
 {
 	if (!(flags & SDF_ABSANGLE))
 	{
-		angle += actor->_f_angle();
+		angle += actor->Angles.Yaw;
 	}
 	return NULL != ShootDecal(tpl, actor, actor->Sector, actor->X(), actor->Y(),
-		actor->Center() - actor->Floorclip + actor->GetBobOffset() + FIXED2DBL(zofs),
-		DAngle(ANGLE2DBL(angle)), FIXED2DBL(distance), !!(flags & SDF_PERMANENT));
+		actor->Center() - actor->Floorclip + actor->GetBobOffset() + zofs,
+		angle, distance, !!(flags & SDF_PERMANENT));
 }
 
 static void SetActorAngle(AActor *activator, int tid, int angle, bool interpolate)
@@ -5668,9 +5674,9 @@ doplaysound:			if (funcIndex == ACSF_PlayActorSound)
 				if (tpl != NULL)
 				{
 					int flags = (argCount > 2) ? args[2] : 0;
-					angle_t angle = (argCount > 3) ? (args[3] << FRACBITS) : 0;
-					fixed_t zoffset = (argCount > 4) ? (args[4] << FRACBITS) : 0;
-					fixed_t distance = (argCount > 5) ? (args[5] << FRACBITS) : 64*FRACUNIT;
+					DAngle angle = ACSToAngle((argCount > 3) ? args[3] : 0);
+					int zoffset = (argCount > 4) ? args[4]: 0;
+					int distance = (argCount > 5) ? args[5] : 64;
 
 					if (args[0] == 0)
 					{
@@ -5783,7 +5789,9 @@ doplaysound:			if (funcIndex == ACSF_PlayActorSound)
 				argCount > 8 ? args[8] : 0,
 				argCount > 9 ? ACSToDouble(args[9]) : 1.0,
 				argCount > 10 ? ACSToDouble(args[10]) : 1.0,
-				argCount > 11 ? ACSToDouble(args[11]) : 1.0 );
+				argCount > 11 ? ACSToDouble(args[11]) : 1.0,
+				argCount > 12 ? args[12] : 0,
+				argCount > 13 ? args[13] : 0);
 		}
 
 		case ACSF_SetLineActivation:
@@ -7985,7 +7993,7 @@ scriptwait:
 					float x = ACSToFloat(Stack[optstart-3]);
 					float y = ACSToFloat(Stack[optstart-2]);
 					float holdTime = ACSToFloat(Stack[optstart-1]);
-					fixed_t alpha;
+					float alpha;
 					DHUDMessage *msg;
 
 					if (type & HUDMSG_COLORSTRING)
@@ -8000,13 +8008,13 @@ scriptwait:
 					switch (type & 0xFF)
 					{
 					default:	// normal
-						alpha = (optstart < sp) ? Stack[optstart] : OPAQUE;
+						alpha = (optstart < sp) ? ACSToFloat(Stack[optstart]) : 1.f;
 						msg = new DHUDMessage (activefont, work, x, y, hudwidth, hudheight, color, holdTime);
 						break;
 					case 1:		// fade out
 						{
 							float fadeTime = (optstart < sp) ? ACSToFloat(Stack[optstart]) : 0.5f;
-							alpha = (optstart < sp-1) ? Stack[optstart+1] : OPAQUE;
+							alpha = (optstart < sp-1) ? ACSToFloat(Stack[optstart+1]) : 1.f;
 							msg = new DHUDMessageFadeOut (activefont, work, x, y, hudwidth, hudheight, color, holdTime, fadeTime);
 						}
 						break;
@@ -8014,7 +8022,7 @@ scriptwait:
 						{
 							float typeTime = (optstart < sp) ? ACSToFloat(Stack[optstart]) : 0.05f;
 							float fadeTime = (optstart < sp-1) ? ACSToFloat(Stack[optstart+1]) : 0.5f;
-							alpha = (optstart < sp-2) ? Stack[optstart+2] : FRACUNIT;
+							alpha = (optstart < sp-2) ? ACSToFloat(Stack[optstart+2]) : 1.f;
 							msg = new DHUDMessageTypeOnFadeOut (activefont, work, x, y, hudwidth, hudheight, color, typeTime, holdTime, fadeTime);
 						}
 						break;
@@ -8022,7 +8030,7 @@ scriptwait:
 						{
 							float inTime = (optstart < sp) ? ACSToFloat(Stack[optstart]) : 0.5f;
 							float outTime = (optstart < sp-1) ? ACSToFloat(Stack[optstart+1]) : 0.5f;
-							alpha = (optstart < sp-2) ? Stack[optstart+2] : OPAQUE;
+							alpha = (optstart < sp-2) ? ACSToFloat(Stack[optstart + 2]) : 1.f;
 							msg = new DHUDMessageFadeInOut (activefont, work, x, y, hudwidth, hudheight, color, holdTime, inTime, outTime);
 						}
 						break;
@@ -8679,7 +8687,7 @@ scriptwait:
 				bool result = false;
 				AActor *actor = SingleActorFromTID (STACK(5), activator);
 				if (actor != NULL)
-					result = P_MoveThing(actor, STACK(4), STACK(3), STACK(2), !!STACK(1));
+					result = P_MoveThing(actor, DVector3(ACSToDouble(STACK(4)), ACSToDouble(STACK(3)), ACSToDouble(STACK(2))), !!STACK(1));
 				sp -= 4;
 				STACK(1) = result;
 			}
@@ -8696,11 +8704,11 @@ scriptwait:
 				}
 				else if (pcd == PCD_GETACTORZ)
 				{
-					STACK(1) = actor->_f_Z() + actor->GetBobOffset();
+					STACK(1) = DoubleToACS(actor->Z() + actor->GetBobOffset());
 				}
 				else
 				{
-					STACK(1) = pcd == PCD_GETACTORX ? actor->_f_X() : pcd == PCD_GETACTORY ? actor->_f_Y() : actor->_f_Z();
+					STACK(1) = DoubleToACS(pcd == PCD_GETACTORX ? actor->X() : pcd == PCD_GETACTORY ? actor->Y() : actor->Z());
 				}
 			}
 			break;

src/p_acs.h

@@ -907,7 +907,8 @@ protected:
 	static int CountPlayers ();
 	static void SetLineTexture (int lineid, int side, int position, int name);
 	static void ReplaceTextures (int fromname, int toname, int flags);
-	static int DoSpawn (int type, fixed_t x, fixed_t y, fixed_t z, int tid, int angle, bool force);
+	static int DoSpawn (int type, const DVector3 &pos, int tid, DAngle angle, bool force);
+	static int DoSpawn(int type, int x, int y, int z, int tid, int angle, bool force);
 	static bool DoCheckActorTexture(int tid, AActor *activator, int string, bool floor);
 	int DoSpawnSpot (int type, int spot, int tid, int angle, bool forced);
 	int DoSpawnSpotFacing (int type, int spot, int tid, bool forced);

src/p_buildmap.cpp

@@ -697,9 +697,9 @@ static int LoadSprites (spritetype *sprites, Xsprite *xsprites, int numsprites,
 	for (int i = 0; i < numsprites; ++i)
 	{
 		mapthings[count].thingid = 0;
-		mapthings[count].x = (sprites[i].x << 12);
-		mapthings[count].y = -(sprites[i].y << 12);
-		mapthings[count].z = (bsectors[sprites[i].sectnum].floorZ - sprites[i].z) << 8;
+		mapthings[count].pos.X = sprites[i].x / 16.;
+		mapthings[count].pos.Y = -sprites[i].y / 16.;
+		mapthings[count].pos.Z = (bsectors[sprites[i].sectnum].floorZ - sprites[i].z) / 256.;
 		mapthings[count].angle = (((2048-sprites[i].ang) & 2047) * 360) >> 11;
 		mapthings[count].ClassFilter = 0xffff;
 		mapthings[count].SkillFilter = 0xffff;
@@ -786,8 +786,8 @@ static void CreateStartSpot (fixed_t *pos, FMapThing *start)
 	short angle = LittleShort(*(WORD *)(&pos[3]));
 	FMapThing mt = { 0, };
 
-	mt.x = LittleLong(pos[0])<<12;
-	mt.y = (-LittleLong(pos[1]))<<12;
+	mt.pos.X = LittleLong(pos[0]) / 16.;
+	mt.pos.Y = -LittleLong(pos[1]) / 16.;
 	mt.angle = short(Scale((2048-angle)&2047, 360, 2048));
 	mt.info = DoomEdMap.CheckKey(1);
 	mt.EdNum = 1;

src/p_checkposition.h

@@ -21,7 +21,7 @@ struct FCheckPosition
 	sector_t		*sector;
 	double			floorz;
 	double			ceilingz;
-	fixed_t			dropoffz;
+	double			dropoffz;
 	FTextureID		floorpic;
 	int				floorterrain;
 	sector_t		*floorsector;
@@ -55,6 +55,10 @@ struct FCheckPosition
 	{
 		return FLOAT2FIXED(floorz);
 	}
+	inline fixed_t _f_dropoffz()
+	{
+		return FLOAT2FIXED(dropoffz);
+	}
 
 };
 

src/p_effect.cpp

@@ -493,11 +493,9 @@ void P_RunEffect (AActor *actor, int effects)
 	{
 		// Grenade trail
 
-		fixedvec3 pos = actor->_f_Vec3Angle(-actor->_f_radius() * 2, moveangle.BAMs(),
-			fixed_t(-(actor->_f_height() >> 3) * (actor->Vel.Z) + (2 * actor->_f_height()) / 3));
+		DVector3 pos = actor->Vec3Angle(-actor->radius * 2, moveangle, -actor->Height * actor->Vel.Z / 8 + actor->Height * (2. / 3));
 
-		P_DrawSplash2 (6, pos.x, pos.y, pos.z,
-			moveangle.BAMs() + ANG180, 2, 2);
+		P_DrawSplash2 (6, pos, moveangle + 180, 2, 2);
 	}
 	if (effects & FX_FOUNTAINMASK)
 	{
@@ -547,7 +545,7 @@ void P_RunEffect (AActor *actor, int effects)
 	}
 }
 
-void P_DrawSplash (int count, fixed_t x, fixed_t y, fixed_t z, angle_t angle, int kind)
+void P_DrawSplash (int count, const DVector3 &pos, DAngle angle, int kind)
 {
 	int color1, color2;
 
@@ -564,7 +562,6 @@ void P_DrawSplash (int count, fixed_t x, fixed_t y, fixed_t z, angle_t angle, in
 	for (; count; count--)
 	{
 		particle_t *p = JitterParticle (10);
-		angle_t an;
 
 		if (!p)
 			break;
@@ -575,14 +572,14 @@ void P_DrawSplash (int count, fixed_t x, fixed_t y, fixed_t z, angle_t angle, in
 		p->accz -= FRACUNIT/8;
 		p->accx += (M_Random () - 128) * 8;
 		p->accy += (M_Random () - 128) * 8;
-		p->z = z - M_Random () * 1024;
-		an = (angle + (M_Random() << 21)) >> ANGLETOFINESHIFT;
-		p->x = x + (M_Random () & 15)*finecosine[an];
-		p->y = y + (M_Random () & 15)*finesine[an];
+		p->z = FLOAT2FIXED(pos.Z) - M_Random () * 1024;
+		angle += M_Random() * (45./256);
+		p->x = FLOAT2FIXED(pos.X + (M_Random() & 15)*angle.Cos());
+		p->y = FLOAT2FIXED(pos.Y + (M_Random() & 15)*angle.Sin());
 	}
 }
 
-void P_DrawSplash2 (int count, fixed_t x, fixed_t y, fixed_t z, angle_t angle, int updown, int kind)
+void P_DrawSplash2 (int count, const DVector3 &pos, DAngle angle, int updown, int kind)
 {
 	int color1, color2, zvel, zspread, zadd;
 
@@ -626,16 +623,16 @@ void P_DrawSplash2 (int count, fixed_t x, fixed_t y, fixed_t z, angle_t angle, i
 		p->vel.z = M_Random () * zvel;
 		p->accz = -FRACUNIT/22;
 		if (kind) {
-			an = (angle + ((M_Random() - 128) << 23)) >> ANGLETOFINESHIFT;
+			an = (angle.BAMs() + ((M_Random() - 128) << 23)) >> ANGLETOFINESHIFT;
 			p->vel.x = (M_Random () * finecosine[an]) >> 11;
 			p->vel.y = (M_Random () * finesine[an]) >> 11;
 			p->accx = p->vel.x >> 4;
 			p->accy = p->vel.y >> 4;
 		}
-		p->z = z + (M_Random () + zadd - 128) * zspread;
-		an = (angle + ((M_Random() - 128) << 22)) >> ANGLETOFINESHIFT;
-		p->x = x + ((M_Random () & 31)-15)*finecosine[an];
-		p->y = y + ((M_Random () & 31)-15)*finesine[an];
+		p->z = FLOAT2FIXED(pos.Z) + (M_Random () + zadd - 128) * zspread;
+		an = (angle.BAMs() + ((M_Random() - 128) << 22)) >> ANGLETOFINESHIFT;
+		p->x = FLOAT2FIXED(pos.X) + ((M_Random () & 31)-15)*finecosine[an];
+		p->y = FLOAT2FIXED(pos.X) + ((M_Random () & 31)-15)*finesine[an];
 	}
 }
 
@@ -862,9 +859,7 @@ void P_DrawRailTrail(AActor *source, const DVector3 &start, const DVector3 &end,
 				if (rnd & 4)
 					diff.Z = clamp<double>(diff.Z + ((rnd & 32) ? 1 : -1), -maxdiff, maxdiff);
 			}			
-			DVector3 postmp = pos + diff;
-
-			AActor *thing = Spawn (spawnclass, FLOAT2FIXED(postmp.X), FLOAT2FIXED(postmp.Y), FLOAT2FIXED(postmp.Z), ALLOW_REPLACE);
+			AActor *thing = Spawn (spawnclass, pos + diff, ALLOW_REPLACE);
 			if (thing)
 				thing->Angles.Yaw = ANGLE2DBL(angle);
 			pos += trail_step;

src/p_effect.h

@@ -90,6 +90,6 @@ void P_RunEffects (void);
 void P_RunEffect (AActor *actor, int effects);
 
 void P_DrawRailTrail(AActor *source, const DVector3 &start, const DVector3 &end, int color1, int color2, double maxdiff = 0, int flags = 0, PClassActor *spawnclass = NULL, angle_t angle = 0, int duration = 35, double sparsity = 1.0, double drift = 1.0, int SpiralOffset = 270);
-void P_DrawSplash (int count, fixed_t x, fixed_t y, fixed_t z, angle_t angle, int kind);
-void P_DrawSplash2 (int count, fixed_t x, fixed_t y, fixed_t z, angle_t angle, int updown, int kind);
+void P_DrawSplash (int count, const DVector3 &pos, DAngle angle, int kind);
+void P_DrawSplash2 (int count, const DVector3 &pos, DAngle angle, int updown, int kind);
 void P_DisconnectEffect (AActor *actor);

src/p_enemy.cpp

@@ -410,7 +410,7 @@ bool AActor::SuggestMissileAttack (fixed_t dist)
 	if (flags4 & MF4_MISSILEMORE) dist >>= 1;
 	if (flags4 & MF4_MISSILEEVENMORE) dist >>= 3;
 	
-	int mmc = FixedMul(MinMissileChance, G_SkillProperty(SKILLP_Aggressiveness));
+	int mmc = int(MinMissileChance * G_SkillProperty(SKILLP_Aggressiveness));
 	return pr_checkmissilerange() >= MIN<int> (dist >> FRACBITS, mmc);
 }
 
@@ -879,7 +879,7 @@ void P_NewChaseDir(AActor * actor)
 	}
 	
 	// Try to move away from a dropoff
-	if (actor->_f_floorz() - actor->dropoffz > actor->MaxDropOffHeight && 
+	if (actor->floorz - actor->dropoffz > actor->MaxDropOffHeight && 
 		actor->Z() <= actor->floorz && !(actor->flags & MF_DROPOFF) && 
 		!(actor->flags2 & MF2_ONMOBJ) &&
 		!(actor->flags & MF_FLOAT) && !(i_compatflags & COMPATF_DROPOFF))
@@ -888,8 +888,8 @@ void P_NewChaseDir(AActor * actor)
 		FBlockLinesIterator it(box);
 		line_t *line;
 
-		fixed_t deltax = 0;
-		fixed_t deltay = 0;
+		double deltax = 0;
+		double deltay = 0;
 		while ((line = it.Next()))
 		{
 			if (line->backsector                     && // Ignore one-sided linedefs
@@ -899,31 +899,31 @@ void P_NewChaseDir(AActor * actor)
 				box.Bottom() < line->bbox[BOXTOP]    &&
 				box.BoxOnLineSide(line) == -1)
 		    {
-				fixed_t front = line->frontsector->floorplane.ZatPoint(actor->PosRelative(line));
-				fixed_t back  = line->backsector->floorplane.ZatPoint(actor->PosRelative(line));
-				angle_t angle;
+				double front = line->frontsector->floorplane.ZatPointF(actor->PosRelative(line));
+				double back  = line->backsector->floorplane.ZatPointF(actor->PosRelative(line));
+				DAngle angle;
 		
 				// The monster must contact one of the two floors,
 				// and the other must be a tall dropoff.
 				
-				if (back == actor->_f_Z() && front < actor->_f_Z() - actor->MaxDropOffHeight)
+				if (back == actor->Z() && front < actor->Z() - actor->MaxDropOffHeight)
 				{
-					angle = R_PointToAngle2(0,0,line->dx,line->dy);   // front side dropoff
+					angle = line->Delta().Angle();   // front side dropoff
 				}
-				else if (front == actor->_f_Z() && back < actor->_f_Z() - actor->MaxDropOffHeight)
+				else if (front == actor->Z() && back < actor->Z() - actor->MaxDropOffHeight)
 				{
-					angle = R_PointToAngle2(line->dx,line->dy,0,0); // back side dropoff
+					angle = line->Delta().Angle() + 180.; // back side dropoff
 				}
 				else continue;
 		
 				// Move away from dropoff at a standard speed.
 				// Multiple contacted linedefs are cumulative (e.g. hanging over corner)
-				deltax -= finesine[angle >> ANGLETOFINESHIFT]*32;
-				deltay += finecosine[angle >> ANGLETOFINESHIFT]*32;
+				deltax -= 32 * angle.Sin();
+				deltay += 32 * angle.Cos();
 			}
 		}
 
-		if (deltax || deltay) 
+		if (deltax != 0 || deltay != 0) 
 		{
 			// [Graf Zahl] I have changed P_TryMove to only apply this logic when
 			// being called from here. AVOIDINGDROPOFF activates the code that
@@ -933,7 +933,7 @@ void P_NewChaseDir(AActor * actor)
 
 			// use different dropoff movement logic in P_TryMove
 			actor->flags5|=MF5_AVOIDINGDROPOFF;
-			P_DoNewChaseDir(actor, deltax, deltay);
+			P_DoNewChaseDir(actor, FLOAT2FIXED(deltax), FLOAT2FIXED(deltay));
 			actor->flags5&=~MF5_AVOIDINGDROPOFF;
 		
 			// If moving away from dropoff, set movecount to 1 so that 
@@ -2861,30 +2861,29 @@ void A_Face (AActor *self, AActor *other, angle_t _max_turn, angle_t _max_pitch,
 	// disabled and is so by default.
 	if (max_pitch <= 180.)
 	{
-		fixedvec2 pos = self->_f_Vec2To(other);
-		DVector2 dist(pos.x, pos.y);
+		DVector2 dist = self->Vec2To(other);
 		
 		// Positioning ala missile spawning, 32 units above foot level
-		fixed_t source_z = self->_f_Z() + 32*FRACUNIT + self->GetBobOffset();
-		fixed_t target_z = other->_f_Z() + 32*FRACUNIT + other->GetBobOffset();
+		double source_z = self->Z() + 32 + self->GetBobOffset();
+		double target_z = other->Z() + 32 + other->GetBobOffset();
 
 		// If the target z is above the target's head, reposition to the middle of
 		// its body.		
-		if (target_z >= other->_f_Top())
+		if (target_z >= other->Top())
 		{
-			target_z = other->_f_Z() + (other->_f_height() / 2);
+			target_z = other->Center();
 		}
 
 		//Note there is no +32*FRACUNIT on purpose. This is for customization sake. 
 		//If one doesn't want this behavior, just don't use FAF_BOTTOM.
 		if (flags & FAF_BOTTOM)
-			target_z = other->_f_Z() + other->GetBobOffset(); 
+			target_z = other->Z() + other->GetBobOffset(); 
 		if (flags & FAF_MIDDLE)
-			target_z = other->_f_Z() + (other->_f_height() / 2) + other->GetBobOffset();
+			target_z = other->Center() + other->GetBobOffset();
 		if (flags & FAF_TOP)
-			target_z = other->_f_Z() + (other->_f_height()) + other->GetBobOffset();
+			target_z = other->Top() + other->GetBobOffset();
 
-		target_z += z_add;
+		target_z += FIXED2FLOAT(z_add);
 
 		double dist_z = target_z - source_z;
 		double ddist = g_sqrt(dist.X*dist.X + dist.Y*dist.Y + dist_z*dist_z);
@@ -3098,11 +3097,11 @@ DEFINE_ACTION_FUNCTION(AActor, A_ActiveAndUnblock)
 void ModifyDropAmount(AInventory *inv, int dropamount)
 {
 	int flagmask = IF_IGNORESKILL;
-	fixed_t dropammofactor = G_SkillProperty(SKILLP_DropAmmoFactor);
+	double dropammofactor = G_SkillProperty(SKILLP_DropAmmoFactor);
 	// Default drop amount is half of regular amount * regular ammo multiplication
 	if (dropammofactor == -1) 
 	{
-		dropammofactor = FRACUNIT/2;
+		dropammofactor = 0.5;
 		flagmask = 0;
 	}
 
@@ -3110,7 +3109,7 @@ void ModifyDropAmount(AInventory *inv, int dropamount)
 	{
 		if (flagmask != 0 && inv->IsKindOf(RUNTIME_CLASS(AAmmo)))
 		{
-			inv->Amount = FixedMul(dropamount, dropammofactor);
+			inv->Amount = int(dropamount * dropammofactor);
 			inv->ItemFlags |= IF_IGNORESKILL;
 		}
 		else
@@ -3124,7 +3123,7 @@ void ModifyDropAmount(AInventory *inv, int dropamount)
 		int amount = static_cast<PClassAmmo *>(inv->GetClass())->DropAmount;
 		if (amount <= 0)
 		{
-			amount = MAX(1, FixedMul(inv->Amount, dropammofactor));
+			amount = MAX(1, int(inv->Amount * dropammofactor));
 		}
 		inv->Amount = amount;
 		inv->ItemFlags |= flagmask;
@@ -3137,8 +3136,8 @@ void ModifyDropAmount(AInventory *inv, int dropamount)
 	else if (inv->IsKindOf (RUNTIME_CLASS(AWeapon)))
 	{
 		// The same goes for ammo from a weapon.
-		static_cast<AWeapon *>(inv)->AmmoGive1 = FixedMul(static_cast<AWeapon *>(inv)->AmmoGive1, dropammofactor);
-		static_cast<AWeapon *>(inv)->AmmoGive2 = FixedMul(static_cast<AWeapon *>(inv)->AmmoGive2, dropammofactor);
+		static_cast<AWeapon *>(inv)->AmmoGive1 = int(static_cast<AWeapon *>(inv)->AmmoGive1 * dropammofactor);
+		static_cast<AWeapon *>(inv)->AmmoGive2 = int(static_cast<AWeapon *>(inv)->AmmoGive2 * dropammofactor);
 		inv->ItemFlags |= flagmask;
 	}			
 	else if (inv->IsKindOf (RUNTIME_CLASS(ADehackedPickup)))
@@ -3161,9 +3160,8 @@ AInventory *P_DropItem (AActor *source, PClassActor *type, int dropamount, int c
 	if (type != NULL && pr_dropitem() <= chance)
 	{
 		AActor *mo;
-		fixed_t spawnz;
+		double spawnz = 0;
 
-		spawnz = source->_f_Z();
 		if (!(i_compatflags & COMPATF_NOTOSSDROPS))
 		{
 			int style = sv_dropstyle;
@@ -3173,14 +3171,14 @@ AInventory *P_DropItem (AActor *source, PClassActor *type, int dropamount, int c
 			}
 			if (style == 2)
 			{
-				spawnz += 24*FRACUNIT;
+				spawnz = 24*FRACUNIT;
 			}
 			else
 			{
-				spawnz += source->_f_height() / 2;
+				spawnz = source->Height / 2;
 			}
 		}
-		mo = Spawn(type, source->_f_X(), source->_f_Y(), spawnz, ALLOW_REPLACE);
+		mo = Spawn(type, source->PosPlusZ(spawnz), ALLOW_REPLACE);
 		if (mo != NULL)
 		{
 			mo->flags |= MF_DROPPED;

src/p_lnspec.cpp

@@ -3272,19 +3272,23 @@ FUNC(LS_GlassBreak)
 	{
 		if (!arg0)
 		{ // Break some glass
-			fixed_t x, y;
 			AActor *glass;
 
-			x = ln->v1->x + ln->dx/2;
-			y = ln->v1->y + ln->dy/2;
+			DVector2 linemid((ln->v1->fX() + ln->v2->fX()) / 2, (ln->v1->fY() + ln->v2->fY()) / 2);
+
+			// remove dependence on sector size and always spawn 2 map units in front of the line.
+			DVector2 normal(ln->Delta().Y, -ln->Delta().X);
+			linemid += normal.Unit() * 2;
+			/* old code:
 			x += (ln->frontsector->centerspot.x - x) / 5;
 			y += (ln->frontsector->centerspot.y - y) / 5;
+			*/
 
 			for (int i = 0; i < 7; ++i)
 			{
-				glass = Spawn("GlassJunk", x, y, ONFLOORZ, ALLOW_REPLACE);
+				glass = Spawn("GlassJunk", DVector3(linemid, ONFLOORZ), ALLOW_REPLACE);
 
-				glass->_f_AddZ(24 * FRACUNIT);
+				glass->AddZ(24.);
 				glass->SetState (glass->SpawnState + (pr_glass() % glass->health));
 
 				glass->Angles.Yaw = pr_glass() * (360 / 256.);

src/p_local.h

@@ -23,10 +23,13 @@
 #ifndef __P_LOCAL__
 #define __P_LOCAL__
 
+#include <float.h>
 #include "doomtype.h"
 #include "tables.h"
 #include "vectors.h"
 
+const double NO_VALUE = FLT_MAX;
+
 class player_t;
 class AActor;
 struct FPlayerStart;
@@ -135,22 +138,15 @@ enum EPuffFlags
 	PF_NORANDOMZ = 16
 };
 
-AActor *P_SpawnPuff (AActor *source, PClassActor *pufftype, fixed_t x, fixed_t y, fixed_t z, angle_t hitdir, angle_t particledir, int updown, int flags = 0, AActor *vict = NULL);
+AActor *P_SpawnPuff(AActor *source, PClassActor *pufftype, const DVector3 &pos, DAngle hitdir, DAngle particledir, int updown, int flags = 0, AActor *vict = NULL);
 inline AActor *P_SpawnPuff(AActor *source, PClassActor *pufftype, const fixedvec3 &pos, angle_t hitdir, angle_t particledir, int updown, int flags = 0, AActor *vict = NULL)
 {
-	return P_SpawnPuff(source, pufftype, pos.x, pos.y, pos.z, hitdir, particledir, updown, flags, vict);
+	DVector3 _pos(FIXED2DBL(pos.x), FIXED2DBL(pos.y), FIXED2DBL(pos.z));
+	return P_SpawnPuff(source, pufftype, _pos, ANGLE2DBL(hitdir), ANGLE2DBL(particledir), updown, flags, vict);
 }
-inline AActor *P_SpawnPuff(AActor *source, PClassActor *pufftype, const DVector3 &pos, DAngle hitdir, DAngle particledir, int updown, int flags = 0, AActor *vict = NULL)
-{
-	return P_SpawnPuff(source, pufftype, FLOAT2FIXED(pos.X), FLOAT2FIXED(pos.Y), FLOAT2FIXED(pos.Z), hitdir.BAMs(), particledir.BAMs(), updown, flags, vict);
-}
-void	P_SpawnBlood (fixed_t x, fixed_t y, fixed_t z, angle_t dir, int damage, AActor *originator);
-inline void	P_SpawnBlood(const fixedvec3 &pos, angle_t dir, int damage, AActor *originator)
-{
-	P_SpawnBlood(pos.x, pos.y, pos.z, dir, damage, originator);
-}
-void	P_BloodSplatter (fixedvec3 pos, AActor *originator);
-void	P_BloodSplatter2 (fixedvec3 pos, AActor *originator);
+void	P_SpawnBlood (const DVector3 &pos, DAngle angle, int damage, AActor *originator);
+void	P_BloodSplatter (const DVector3 &pos, AActor *originator, DAngle hitangle);
+void	P_BloodSplatter2 (const DVector3 &pos, AActor *originator, DAngle hitangle);
 void	P_RipperBlood (AActor *mo, AActor *bleeder);
 int		P_GetThingFloorType (AActor *thing);
 void	P_ExplodeMissile (AActor *missile, line_t *explodeline, AActor *target);
@@ -216,7 +212,7 @@ bool	P_Thing_Spawn (int tid, AActor *source, int type, DAngle angle, bool fog, i
 bool	P_Thing_Projectile (int tid, AActor *source, int type, const char * type_name, DAngle angle,
 			fixed_t speed, fixed_t vspeed, int dest, AActor *forcedest, int gravity, int newtid,
 			bool leadTarget);
-bool	P_MoveThing(AActor *source, fixed_t x, fixed_t y, fixed_t z, bool fog);
+bool	P_MoveThing(AActor *source, const DVector3 &pos, bool fog);
 bool	P_Thing_Move (int tid, AActor *source, int mapspot, bool fog);
 int		P_Thing_Damage (int tid, AActor *whofor0, int amount, FName type);
 void	P_Thing_SetVelocity(AActor *actor, const DVector3 &vec, bool add, bool setbob);
@@ -301,6 +297,10 @@ inline bool	P_TryMove(AActor* thing, const DVector2 &pos, int dropoff, const sec
 {
 	return P_TryMove(thing, FLOAT2FIXED(pos.X), FLOAT2FIXED(pos.Y), dropoff, onfloor);
 }
+inline bool	P_TryMove(AActor* thing, const DVector2 &pos, int dropoff, const secplane_t * onfloor, FCheckPosition &tm, bool missileCheck = false)
+{
+	return P_TryMove(thing, FLOAT2FIXED(pos.X), FLOAT2FIXED(pos.Y), dropoff, onfloor, tm, missileCheck);
+}
 bool	P_CheckMove(AActor *thing, fixed_t x, fixed_t y);
 void	P_ApplyTorque(AActor *mo);
 bool	P_TeleportMove (AActor* thing, fixed_t x, fixed_t y, fixed_t z, bool telefrag, bool modifyactor = true);	// [RH] Added z and telefrag parameters
@@ -374,6 +374,10 @@ inline void	P_TraceBleed(int damage, const fixedvec3 &pos, AActor *target, angle
 {
 	P_TraceBleed(damage, pos.x, pos.y, pos.z, target, angle, pitch);
 }
+inline void	P_TraceBleed(int damage, const DVector3 &pos, AActor *target, DAngle angle, DAngle pitch)
+{
+	P_TraceBleed(damage, FLOAT2FIXED(pos.X), FLOAT2FIXED(pos.Y), FLOAT2FIXED(pos.Z), target,angle.BAMs(), pitch.BAMs());
+}
 void	P_TraceBleed (int damage, AActor *target, angle_t angle, int pitch);
 inline void	P_TraceBleed(int damage, AActor *target, DAngle angle, DAngle pitch)
 {
@@ -383,10 +387,11 @@ void	P_TraceBleed (int damage, AActor *target, AActor *missile);		// missile ver
 void	P_TraceBleed(int damage, FTranslatedLineTarget *t, AActor *puff);		// hitscan version
 void	P_TraceBleed (int damage, AActor *target);		// random direction version
 bool	P_HitFloor (AActor *thing);
-bool	P_HitWater (AActor *thing, sector_t *sec, fixed_t splashx = FIXED_MIN, fixed_t splashy = FIXED_MIN, fixed_t splashz=FIXED_MIN, bool checkabove = false, bool alert = true, bool force = false);
+bool	P_HitWater (AActor *thing, sector_t *sec, const DVector3 &pos, bool checkabove = false, bool alert = true, bool force = false);
 inline bool	P_HitWater(AActor *thing, sector_t *sec, const fixedvec3 &pos, bool checkabove = false, bool alert = true, bool force = false)
 {
-	return P_HitWater(thing, sec, pos.x, pos.y, pos.z, checkabove, alert, force);
+	DVector3 fpos(FIXED2DBL(pos.x), FIXED2DBL(pos.y), FIXED2DBL(pos.z));
+	return P_HitWater(thing, sec, fpos, checkabove, alert, force);
 }
 void	P_CheckSplash(AActor *self, double distance);
 void	P_RailAttack (AActor *source, int damage, int offset_xy, fixed_t offset_z = 0, int color1 = 0, int color2 = 0, double maxdiff = 0, int flags = 0, PClassActor *puff = NULL, angle_t angleoffset = 0, angle_t pitchoffset = 0, fixed_t distance = 8192*FRACUNIT, int duration = 0, double sparsity = 1.0, double drift = 1.0, PClassActor *spawnclass = NULL, int SpiralOffset = 270);	// [RH] Shoot a railgun
@@ -406,7 +411,7 @@ bool	P_CheckMissileSpawn(AActor *missile, double maxdist);
 void	P_PlaySpawnSound(AActor *missile, AActor *spawner);
 
 // [RH] Position the chasecam
-void	P_AimCamera (AActor *t1, fixed_t &x, fixed_t &y, fixed_t &z, sector_t *&sec, bool &unlinked);
+void	P_AimCamera (AActor *t1, DVector3 &, sector_t *&sec, bool &unlinked);
 
 // [RH] Means of death
 enum

src/p_map.cpp

@@ -260,7 +260,7 @@ static bool PIT_FindFloorCeiling(FMultiBlockLinesIterator &mit, FMultiBlockLines
 			tmf.touchmidtex = open.touchmidtex;
 			tmf.abovemidtex = open.abovemidtex;
 			if (ffcf_verbose) Printf("    Adjust floorz to %f\n", FIXED2FLOAT(open.bottom));
-			if (tmf._f_floorz() > tmf.dropoffz + tmf.thing->MaxDropOffHeight) mit.StopDown();
+			if (tmf.floorz > tmf.dropoffz + tmf.thing->MaxDropOffHeight) mit.StopDown();
 		}
 		else if (open.bottom == tmf._f_floorz())
 		{
@@ -268,11 +268,11 @@ static bool PIT_FindFloorCeiling(FMultiBlockLinesIterator &mit, FMultiBlockLines
 			tmf.abovemidtex |= open.abovemidtex;
 		}
 
-		if (open.lowfloor < tmf.dropoffz && open.lowfloor > FIXED_MIN)
+		if (open.lowfloor < tmf._f_dropoffz() && open.lowfloor > FIXED_MIN)
 		{
-			tmf.dropoffz = open.lowfloor;
+			tmf.dropoffz = FIXED2DBL(open.lowfloor);
 			if (ffcf_verbose) Printf("    Adjust dropoffz to %f\n", FIXED2FLOAT(open.bottom));
-			if (tmf._f_floorz() > tmf.dropoffz + tmf.thing->MaxDropOffHeight) mit.StopDown();
+			if (tmf.floorz > tmf.dropoffz + tmf.thing->MaxDropOffHeight) mit.StopDown();
 		}
 	}
 	return true;
@@ -292,8 +292,7 @@ void P_GetFloorCeilingZ(FCheckPosition &tmf, int flags)
 	F3DFloor *ffc, *fff;
 
 	tmf.ceilingz = FIXED2DBL(sec->NextHighestCeilingAt(tmf.x, tmf.y, tmf.z, tmf.z + tmf.thing->_f_height(), flags, &tmf.ceilingsector, &ffc));
-	tmf.dropoffz = sec->NextLowestFloorAt(tmf.x, tmf.y, tmf.z, flags, tmf.thing->_f_MaxStepHeight(), &tmf.floorsector, &fff);
-	tmf.floorz = FIXED2DBL(tmf.dropoffz);
+	tmf.floorz = tmf.dropoffz = FIXED2DBL(sec->NextLowestFloorAt(tmf.x, tmf.y, tmf.z, flags, tmf.thing->_f_MaxStepHeight(), &tmf.floorsector, &fff));
 
 	if (fff)
 	{
@@ -364,7 +363,7 @@ void P_FindFloorCeiling(AActor *actor, int flags)
 		PIT_FindFloorCeiling(mit, cres, mit.Box(), tmf, flags|cres.portalflags);
 	}
 
-	if (tmf.touchmidtex) tmf.dropoffz = tmf._f_floorz();
+	if (tmf.touchmidtex) tmf.dropoffz = tmf.floorz;
 
 	bool usetmf = !(flags & FFCF_ONLYSPAWNPOS) || (tmf.abovemidtex && (tmf.floorz <= actor->Z()));
 
@@ -445,7 +444,7 @@ bool P_TeleportMove(AActor *thing, fixed_t x, fixed_t y, fixed_t z, bool telefra
 	}
 	thing->_f_SetZ(savedz);
 
-	if (tmf.touchmidtex) tmf.dropoffz = tmf._f_floorz();
+	if (tmf.touchmidtex) tmf.dropoffz = tmf.floorz;
 
 	FMultiBlockThingsIterator mit2(grouplist, x, y, z, thing->_f_height(), thing->_f_radius(), false, sector);
 	FMultiBlockThingsIterator::CheckResult cres2;
@@ -965,9 +964,9 @@ bool PIT_CheckLine(FMultiBlockLinesIterator &mit, FMultiBlockLinesIterator::Chec
 			tm.abovemidtex |= open.abovemidtex;
 		}
 
-		if (open.lowfloor < tm.dropoffz)
+		if (open.lowfloor < tm._f_dropoffz())
 		{
-			tm.dropoffz = open.lowfloor;
+			tm.dropoffz = FIXED2FLOAT(open.lowfloor);
 		}
 	}
 
@@ -1084,8 +1083,8 @@ static bool PIT_CheckPortal(FMultiBlockLinesIterator &mit, FMultiBlockLinesItera
 			ret = true;
 		}
 
-		if (open.lowfloor - zofs < tm.dropoffz)
-			tm.dropoffz = open.lowfloor - zofs;
+		if (open.lowfloor - zofs < tm._f_dropoffz())
+			tm.dropoffz = FIXED2FLOAT(open.lowfloor - zofs);
 	}
 	tm.thing->_f_AddZ(-zofs);
 	lp->backsector = sec;
@@ -1224,7 +1223,7 @@ bool PIT_CheckThing(FMultiBlockThingsIterator &it, FMultiBlockThingsIterator::Ch
 		{
 			// [RH] Let monsters walk on actors as well as floors
 			if ((tm.thing->flags3 & MF3_ISMONSTER) &&
-				topz >= tm._f_floorz() && topz <= tm.thing->_f_Z() + tm.thing->_f_MaxStepHeight())
+				topz >= tm.floorz && topz <= tm.thing->Z() + tm.thing->MaxStepHeight)
 			{
 				// The commented-out if is an attempt to prevent monsters from walking off a
 				// thing further than they would walk off a ledge. I can't think of an easy
@@ -1508,7 +1507,7 @@ bool PIT_CheckThing(FMultiBlockThingsIterator &it, FMultiBlockThingsIterator::Ch
 					!(tm.thing->flags3 & MF3_BLOODLESSIMPACT) &&
 					(pr_checkthing() < 192))
 				{
-					P_BloodSplatter(tm.thing->_f_Pos(), thing);
+					P_BloodSplatter(tm.thing->Pos(), thing, tm.thing->AngleTo(thing));
 				}
 				if (!(tm.thing->flags3 & MF3_BLOODLESSIMPACT))
 				{
@@ -1625,8 +1624,7 @@ bool P_CheckPosition(AActor *thing, fixed_t x, fixed_t y, FCheckPosition &tm, bo
 	else
 	{
 		// With noclip2, we must ignore 3D floors and go right to the uppermost ceiling and lowermost floor.
-		tm.dropoffz = newsec->_f_LowestFloorAt(x, y, &tm.floorsector);
-		tm.floorz = FIXED2DBL(tm.dropoffz);
+		tm.floorz = tm.dropoffz = FIXED2FLOAT(newsec->_f_LowestFloorAt(x, y, &tm.floorsector));
 		tm.ceilingz = FIXED2DBL(newsec->_f_HighestCeilingAt(x, y, &tm.ceilingsector));
 		tm.floorpic = tm.floorsector->GetTexture(sector_t::floor);
 		tm.floorterrain = tm.floorsector->GetTerrain(sector_t::floor);
@@ -1727,7 +1725,7 @@ bool P_CheckPosition(AActor *thing, fixed_t x, fixed_t y, FCheckPosition &tm, bo
 
 	fixed_t thingdropoffz = tm._f_floorz();
 	//bool onthing = (thingdropoffz != tmdropoffz);
-	tm.floorz = FIXED2DBL(tm.dropoffz);
+	tm.floorz = tm.dropoffz;
 
 	bool good = true;
 
@@ -1760,11 +1758,11 @@ bool P_CheckPosition(AActor *thing, fixed_t x, fixed_t y, FCheckPosition &tm, bo
 	}
 	if (tm.touchmidtex)
 	{
-		tm.dropoffz = tm._f_floorz();
+		tm.dropoffz = tm.floorz;
 	}
 	else if (tm.stepthing != NULL)
 	{
-		tm.dropoffz = thingdropoffz;
+		tm.dropoffz = FIXED2FLOAT(thingdropoffz);
 	}
 
 	return (thing->BlockingMobj = thingblocker) == NULL;
@@ -2111,7 +2109,7 @@ bool P_TryMove(AActor *thing, fixed_t x, fixed_t y,
 				thing->Vel.Z = -8;
 				goto pushline;
 			}
-			else if (thing->Z() < tm.floorz && tm._f_floorz() - tm.dropoffz > thing->MaxDropOffHeight)
+			else if (thing->Z() < tm.floorz && tm.floorz - tm.dropoffz > thing->MaxDropOffHeight)
 			{
 				thing->Vel.Z = 8;
 				goto pushline;
@@ -2167,7 +2165,7 @@ bool P_TryMove(AActor *thing, fixed_t x, fixed_t y,
 		}
 
 		if (dropoff == 2 &&  // large jump down (e.g. dogs)
-			(tm._f_floorz() - tm.dropoffz > 128 * FRACUNIT || thing->target == NULL || thing->target->_f_Z() >tm.dropoffz))
+			(tm.floorz - tm.dropoffz > 128. || thing->target == NULL || thing->target->Z() >tm.dropoffz))
 		{
 			dropoff = false;
 		}
@@ -2186,7 +2184,7 @@ bool P_TryMove(AActor *thing, fixed_t x, fixed_t y,
 					floorz = MAX(thing->Z(), tm.floorz);
 				}
 
-				if (FLOAT2FIXED(floorz) - tm.dropoffz > thing->MaxDropOffHeight &&
+				if (floorz - tm.dropoffz > thing->MaxDropOffHeight &&
 					!(thing->flags2 & MF2_BLASTED) && !missileCheck)
 				{ // Can't move over a dropoff unless it's been blasted
 					// [GZ] Or missile-spawned
@@ -2199,7 +2197,7 @@ bool P_TryMove(AActor *thing, fixed_t x, fixed_t y,
 			{
 				// special logic to move a monster off a dropoff
 				// this intentionally does not check for standing on things.
-				if (thing->_f_floorz() - tm._f_floorz() > thing->MaxDropOffHeight ||
+				if (thing->floorz - tm.floorz > thing->MaxDropOffHeight ||
 					thing->dropoffz - tm.dropoffz > thing->MaxDropOffHeight)
 				{
 					thing->flags6 &= ~MF6_INTRYMOVE;
@@ -3105,7 +3103,7 @@ const secplane_t * P_CheckSlopeWalk(AActor *actor, fixed_t &xmove, fixed_t &ymov
 								pos.x += xmove;
 								pos.y += ymove;
 
-								if (sec->floorplane.ZatPoint(pos) >= actor->_f_Z() - actor->_f_MaxStepHeight())
+								if (sec->floorplane.ZatPointF(pos) >= actor->Z() - actor->MaxStepHeight)
 								{
 									dopush = false;
 									break;
@@ -4221,7 +4219,7 @@ AActor *P_LineAttack(AActor *t1, DAngle angle, double distance,
 		}
 		if (puffDefaults != NULL && puffDefaults->flags3 & MF3_ALWAYSPUFF)
 		{ // Spawn the puff anyway
-			puff = P_SpawnPuff(t1, pufftype, trace.HitPos, trace.SrcAngleToTarget, trace.SrcAngleToTarget, 2, puffFlags);
+			puff = P_SpawnPuff(t1, pufftype, trace.HitPos, trace.SrcAngleFromTarget, trace.SrcAngleFromTarget, 2, puffFlags);
 		}
 		else
 		{
@@ -4235,9 +4233,9 @@ AActor *P_LineAttack(AActor *t1, DAngle angle, double distance,
 			// position a bit closer for puffs
 			if (trace.HitType != TRACE_HitWall || trace.Line->special != Line_Horizon)
 			{
-				fixedvec2 pos = P_GetOffsetPosition(trace.HitPos.x, trace.HitPos.y, -trace.HitVector.x * 4, -trace.HitVector.y * 4);
-				puff = P_SpawnPuff(t1, pufftype, pos.x, pos.y, trace.HitPos.z - trace.HitVector.z * 4, trace.SrcAngleToTarget,
-					trace.SrcAngleToTarget - ANGLE_90, 0, puffFlags);
+				DVector2 pos = P_GetOffsetPosition(trace.HitPos.X, trace.HitPos.Y, -trace.HitVector.X * 4, -trace.HitVector.Y * 4);
+				puff = P_SpawnPuff(t1, pufftype, DVector3(pos, trace.HitPos.Z - trace.HitVector.Z * 4), trace.SrcAngleFromTarget,
+					trace.SrcAngleFromTarget - 90, 0, puffFlags);
 				puff->radius = 1/65536.;
 			}
 
@@ -4285,14 +4283,14 @@ AActor *P_LineAttack(AActor *t1, DAngle angle, double distance,
 				(t1->player->ReadyWeapon->WeaponFlags & WIF_AXEBLOOD));
 
 			// Hit a thing, so it could be either a puff or blood
-			fixedvec3 bleedpos = trace.HitPos;
+			DVector3 bleedpos = trace.HitPos;
 			// position a bit closer for puffs/blood if using compatibility mode.
 			if (i_compatflags & COMPATF_HITSCAN)
 			{
-				fixedvec2 ofs = P_GetOffsetPosition(bleedpos.x, bleedpos.y, -10 * trace.HitVector.x, -10 * trace.HitVector.y);
-				bleedpos.x = ofs.x;
-				bleedpos.y = ofs.y;
-				bleedpos.z -= -10 * trace.HitVector.z;
+				DVector2 ofs = P_GetOffsetPosition(bleedpos.X, bleedpos.Y, -10 * trace.HitVector.X, -10 * trace.HitVector.Y);
+				bleedpos.X = ofs.X;
+				bleedpos.Y = ofs.Y;
+				bleedpos.Z -= -10 * trace.HitVector.Z;
 			}
 
 			// Spawn bullet puffs or blood spots, depending on target type.
@@ -4304,7 +4302,7 @@ AActor *P_LineAttack(AActor *t1, DAngle angle, double distance,
 					puffFlags |= PF_HITTHINGBLEED;
 
 				// We must pass the unreplaced puff type here 
-				puff = P_SpawnPuff(t1, pufftype, bleedpos, trace.SrcAngleToTarget, trace.SrcAngleToTarget - ANGLE_90, 2, puffFlags | PF_HITTHING, trace.Actor);
+				puff = P_SpawnPuff(t1, pufftype, bleedpos, trace.SrcAngleFromTarget, trace.SrcAngleFromTarget - 90, 2, puffFlags | PF_HITTHING, trace.Actor);
 			}
 
 			// Allow puffs to inflict poison damage, so that hitscans can poison, too.
@@ -4330,10 +4328,10 @@ AActor *P_LineAttack(AActor *t1, DAngle angle, double distance,
 				{
 					// Since the puff is the damage inflictor we need it here 
 					// regardless of whether it is displayed or not.
-					puff = P_SpawnPuff(t1, pufftype, bleedpos, 0, 0, 2, puffFlags | PF_HITTHING | PF_TEMPORARY);
+					puff = P_SpawnPuff(t1, pufftype, bleedpos, 0., 0., 2, puffFlags | PF_HITTHING | PF_TEMPORARY);
 					killPuff = true;
 				}
-				newdam = P_DamageMobj(trace.Actor, puff ? puff : t1, t1, damage, damageType, dmgflags|DMG_USEANGLE, ANGLE2DBL(trace.SrcAngleToTarget));
+				newdam = P_DamageMobj(trace.Actor, puff ? puff : t1, t1, damage, damageType, dmgflags|DMG_USEANGLE, trace.SrcAngleFromTarget);
 				if (actualdamage != NULL)
 				{
 					*actualdamage = newdam;
@@ -4345,7 +4343,7 @@ AActor *P_LineAttack(AActor *t1, DAngle angle, double distance,
 					!(trace.Actor->flags & MF_NOBLOOD) &&
 					!(trace.Actor->flags2 & (MF2_INVULNERABLE | MF2_DORMANT)))
 				{
-					P_SpawnBlood(bleedpos, trace.SrcAngleToTarget, newdam > 0 ? newdam : damage, trace.Actor);
+					P_SpawnBlood(bleedpos, trace.SrcAngleFromTarget, newdam > 0 ? newdam : damage, trace.Actor);
 				}
 
 				if (damage)
@@ -4357,23 +4355,22 @@ AActor *P_LineAttack(AActor *t1, DAngle angle, double distance,
 						{
 							if (axeBlood)
 							{
-								P_BloodSplatter2(bleedpos, trace.Actor);
+								P_BloodSplatter2(bleedpos, trace.Actor, trace.SrcAngleFromTarget);
 							}
 							if (pr_lineattack() < 192)
 							{
-								P_BloodSplatter(bleedpos, trace.Actor);
+								P_BloodSplatter(bleedpos, trace.Actor, trace.SrcAngleFromTarget);
 							}
 						}
 					}
 					// [RH] Stick blood to walls
-					P_TraceBleed(newdam > 0 ? newdam : damage, trace.HitPos,
-						trace.Actor, trace.SrcAngleToTarget, srcpitch);
+					P_TraceBleed(newdam > 0 ? newdam : damage, trace.HitPos, trace.Actor, trace.SrcAngleFromTarget, ANGLE2DBL(srcpitch));
 				}
 			}
 			if (victim != NULL)
 			{
 				victim->linetarget = trace.Actor;
-				victim->angleFromSource = ANGLE2DBL(trace.SrcAngleToTarget);
+				victim->angleFromSource = trace.SrcAngleFromTarget;
 				victim->unlinked = trace.unlinked;
 			}
 		}
@@ -4381,7 +4378,7 @@ AActor *P_LineAttack(AActor *t1, DAngle angle, double distance,
 		{
 			if (puff == NULL)
 			{ // Spawn puff just to get a mass for the splash
-				puff = P_SpawnPuff(t1, pufftype, trace.HitPos, 0, 0, 2, puffFlags | PF_HITTHING | PF_TEMPORARY);
+				puff = P_SpawnPuff(t1, pufftype, trace.HitPos, 0., 0., 2, puffFlags | PF_HITTHING | PF_TEMPORARY);
 				killPuff = true;
 			}
 			SpawnDeepSplash(t1, trace, puff);
@@ -4540,8 +4537,7 @@ void P_TraceBleed(int damage, fixed_t x, fixed_t y, fixed_t z, AActor *actor, an
 					bloodcolor.a = 1;
 				}
 
-				DVector3 hp(FIXED2DBL(bleedtrace.HitPos.x), FIXED2DBL(bleedtrace.HitPos.y), FIXED2DBL(bleedtrace.HitPos.z));
-				DImpactDecal::StaticCreate(bloodType, hp,
+				DImpactDecal::StaticCreate(bloodType, bleedtrace.HitPos,
 					bleedtrace.Line->sidedef[bleedtrace.Side], bleedtrace.ffloor, bloodcolor);
 			}
 		}
@@ -4630,8 +4626,8 @@ void P_TraceBleed(int damage, AActor *target)
 struct SRailHit
 {
 	AActor *HitActor;
-	fixedvec3 HitPos;
-	angle_t HitAngle;
+	DVector3 HitPos;
+	DAngle HitAngle;
 };
 struct RailData
 {
@@ -4666,13 +4662,13 @@ static ETraceStatus ProcessRailHit(FTraceResults &res, void *userdata)
 	SRailHit newhit;
 	newhit.HitActor = res.Actor;
 	newhit.HitPos = res.HitPos;
-	newhit.HitAngle = res.SrcAngleToTarget;
+	newhit.HitAngle = res.SrcAngleFromTarget;
 	if (i_compatflags & COMPATF_HITSCAN)
 	{
-		fixedvec2 ofs = P_GetOffsetPosition(newhit.HitPos.x, newhit.HitPos.y, -10 * res.HitVector.x, -10 * res.HitVector.y);
-		newhit.HitPos.x = ofs.x;
-		newhit.HitPos.y = ofs.y;
-		newhit.HitPos.z -= -10 * res.HitVector.z;
+		DVector2 ofs = P_GetOffsetPosition(newhit.HitPos.X, newhit.HitPos.Y, -10 * res.HitVector.X, -10 * res.HitVector.Y);
+		newhit.HitPos.X = ofs.X;
+		newhit.HitPos.Y = ofs.Y;
+		newhit.HitPos.Z -= -10 * res.HitVector.Z;
 	}
 	data->RailHits.Push(newhit);
 
@@ -4749,7 +4745,7 @@ void P_RailAttack(AActor *source, int damage, int offset_xy, fixed_t offset_z, i
 	// used as damage inflictor
 	AActor *thepuff = NULL;
 
-	if (puffclass != NULL) thepuff = Spawn(puffclass, source->_f_Pos(), ALLOW_REPLACE);
+	if (puffclass != NULL) thepuff = Spawn(puffclass, source->Pos(), ALLOW_REPLACE);
 
 	for (i = 0; i < rail_data.RailHits.Size(); i++)
 	{
@@ -4760,8 +4756,8 @@ void P_RailAttack(AActor *source, int damage, int offset_xy, fixed_t offset_z, i
 
 		int puffflags = PF_HITTHING;
 		AActor *hitactor = rail_data.RailHits[i].HitActor;
-		fixedvec3 &hitpos = rail_data.RailHits[i].HitPos;
-		angle_t hitangle = rail_data.RailHits[i].HitAngle;
+		DVector3 &hitpos = rail_data.RailHits[i].HitPos;
+		DAngle hitangle = rail_data.RailHits[i].HitAngle;
 
 		if ((hitactor->flags & MF_NOBLOOD) ||
 			(hitactor->flags2 & MF2_DORMANT || ((hitactor->flags2 & MF2_INVULNERABLE) && !(puffDefaults->flags3 & MF3_FOILINVUL))))
@@ -4779,7 +4775,7 @@ void P_RailAttack(AActor *source, int damage, int offset_xy, fixed_t offset_z, i
 		}
 		if (spawnpuff)
 		{
-			P_SpawnPuff(source, puffclass, hitpos, trace.SrcAngleToTarget, trace.SrcAngleToTarget - ANGLE_90, 1, puffflags, hitactor);
+			P_SpawnPuff(source, puffclass, hitpos, hitangle, hitangle - 90, 1, puffflags, hitactor);
 		}
 		
 		int dmgFlagPass = DMG_INFLICTOR_IS_PUFF;
@@ -4792,12 +4788,12 @@ void P_RailAttack(AActor *source, int damage, int offset_xy, fixed_t offset_z, i
 			if (puffDefaults->flags3 & MF3_FOILINVUL) dmgFlagPass |= DMG_FOILINVUL;
 			if (puffDefaults->flags7 & MF7_FOILBUDDHA) dmgFlagPass |= DMG_FOILBUDDHA;
 		}
-		int newdam = P_DamageMobj(hitactor, thepuff ? thepuff : source, source, damage, damagetype, dmgFlagPass|DMG_USEANGLE, ANGLE2DBL(hitangle));
+		int newdam = P_DamageMobj(hitactor, thepuff ? thepuff : source, source, damage, damagetype, dmgFlagPass|DMG_USEANGLE, hitangle);
 
 		if (bleed)
 		{
 			P_SpawnBlood(hitpos, hitangle, newdam > 0 ? newdam : damage, hitactor);
-			P_TraceBleed(newdam > 0 ? newdam : damage, hitpos, hitactor, source->_f_angle(), pitch);
+			P_TraceBleed(newdam > 0 ? newdam : damage, hitpos, hitactor, hitangle, ANGLE2DBL(pitch));
 		}
 	}
 
@@ -4808,7 +4804,7 @@ void P_RailAttack(AActor *source, int damage, int offset_xy, fixed_t offset_z, i
 
 		if (puffclass != NULL && puffDefaults->flags3 & MF3_ALWAYSPUFF)
 		{
-			puff = P_SpawnPuff(source, puffclass, trace.HitPos, trace.SrcAngleToTarget, trace.SrcAngleToTarget - ANGLE_90, 1, 0);
+			puff = P_SpawnPuff(source, puffclass, trace.HitPos, trace.SrcAngleFromTarget, trace.SrcAngleFromTarget - 90, 1, 0);
 			if (puff && (trace.Line != NULL) && (trace.Line->special == Line_Horizon) && !(puff->flags3 & MF3_SKYEXPLODE))
 				puff->Destroy();
 		}
@@ -4823,7 +4819,7 @@ void P_RailAttack(AActor *source, int damage, int offset_xy, fixed_t offset_z, i
 		AActor* puff = NULL;
 		if (puffclass != NULL && puffDefaults->flags3 & MF3_ALWAYSPUFF)
 		{
-			puff = P_SpawnPuff(source, puffclass, trace.HitPos, trace.SrcAngleToTarget, trace.SrcAngleToTarget - ANGLE_90, 1, 0);
+			puff = P_SpawnPuff(source, puffclass, trace.HitPos, trace.SrcAngleFromTarget, trace.SrcAngleFromTarget - 90, 1, 0);
 			if (puff && !(puff->flags3 & MF3_SKYEXPLODE) &&
 				(((trace.HitType == TRACE_HitFloor) && (puff->floorpic == skyflatnum)) ||
 				((trace.HitType == TRACE_HitCeiling) && (puff->ceilingpic == skyflatnum))))
@@ -4846,9 +4842,7 @@ void P_RailAttack(AActor *source, int damage, int offset_xy, fixed_t offset_z, i
 	}
 
 	// Draw the slug's trail.
-	end.X = FIXED2DBL(trace.HitPos.x);
-	end.Y = FIXED2DBL(trace.HitPos.y);
-	end.Z = FIXED2DBL(trace.HitPos.z);
+	end = trace.HitPos;
 	P_DrawRailTrail(source, start, end, color1, color2, maxdiff, railflags, spawnclass, source->_f_angle() + angleoffset, duration, sparsity, drift, SpiralOffset);
 }
 
@@ -4861,7 +4855,7 @@ void P_RailAttack(AActor *source, int damage, int offset_xy, fixed_t offset_z, i
 CVAR(Float, chase_height, -8.f, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
 CVAR(Float, chase_dist, 90.f, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
 
-void P_AimCamera(AActor *t1, fixed_t &CameraX, fixed_t &CameraY, fixed_t &CameraZ, sector_t *&CameraSector, bool &unlinked)
+void P_AimCamera(AActor *t1, DVector3 &campos, sector_t *&CameraSector, bool &unlinked)
 {
 	fixed_t distance = (fixed_t)(clamp<double>(chase_dist, 0, 30000) * FRACUNIT);
 	angle_t angle = (t1->_f_angle() - ANG180) >> ANGLETOFINESHIFT;
@@ -4873,23 +4867,21 @@ void P_AimCamera(AActor *t1, fixed_t &CameraX, fixed_t &CameraY, fixed_t &Camera
 	vy = FixedMul(finecosine[pitch], finesine[angle]);
 	vz = finesine[pitch];
 
+	DVector3 vvec(vx, vy, vz);
+	vvec.MakeUnit();
+
 	sz = t1->_f_Z() - t1->_f_floorclip() + t1->_f_height() + (fixed_t)(clamp<double>(chase_height, -1000, 1000) * FRACUNIT);
 
 	if (Trace(t1->_f_X(), t1->_f_Y(), sz, t1->Sector,
 		vx, vy, vz, distance, 0, 0, NULL, trace) &&
-		trace.Distance > 10 * FRACUNIT)
+		trace.Distance > 10)
 	{
 		// Position camera slightly in front of hit thing
-		fixed_t dist = trace.Distance - 5 * FRACUNIT;
-		CameraX = t1->_f_X() + FixedMul(vx, dist);
-		CameraY = t1->_f_Y() + FixedMul(vy, dist);
-		CameraZ = sz + FixedMul(vz, dist);
+		campos = t1->PosAtZ(FIXED2DBL(sz)) + vvec *(trace.Distance - 5);
 	}
 	else
 	{
-		CameraX = trace.HitPos.x;
-		CameraY = trace.HitPos.y;
-		CameraZ = trace.HitPos.z;
+		campos = trace.HitPos;
 	}
 	CameraSector = trace.Sector;
 	unlinked = trace.unlinked;
@@ -5636,7 +5628,7 @@ void P_DoCrunch(AActor *thing, FChangePosition *cpos)
 				{
 					AActor *mo;
 
-					mo = Spawn(bloodcls, thing->PosPlusZ(thing->_f_height() / 2), ALLOW_REPLACE);
+					mo = Spawn(bloodcls, thing->PosPlusZ(thing->Height / 2), ALLOW_REPLACE);
 
 					mo->Vel.X = pr_crunch.Random2() / 16.;
 					mo->Vel.Y = pr_crunch.Random2() / 16.;
@@ -5648,11 +5640,10 @@ void P_DoCrunch(AActor *thing, FChangePosition *cpos)
 					if (!(cl_bloodtype <= 1)) mo->renderflags |= RF_INVISIBLE;
 				}
 
-				angle_t an;
-				an = (M_Random() - 128) << 24;
+				DAngle an = (M_Random() - 128) * (360./256);
 				if (cl_bloodtype >= 1)
 				{
-					P_DrawSplash2(32, thing->_f_X(), thing->_f_Y(), thing->_f_Z() + thing->_f_height() / 2, an, 2, bloodcolor);
+					P_DrawSplash2(32,  thing->PosPlusZ(thing->Height/2), an, 2, bloodcolor);
 				}
 			}
 			if (thing->CrushPainSound != 0 && !S_GetSoundPlayingInfo(thing, thing->CrushPainSound))
@@ -6419,9 +6410,8 @@ void SpawnShootDecal(AActor *t1, const FTraceResults &trace)
 	}
 	if (decalbase != NULL)
 	{
-		DVector3 hp(FIXED2DBL(trace.HitPos.x), FIXED2DBL(trace.HitPos.y), FIXED2DBL(trace.HitPos.z));
 		DImpactDecal::StaticCreate(decalbase->GetDecal(),
-			hp, trace.Line->sidedef[trace.Side], trace.ffloor);
+			trace.HitPos, trace.Line->sidedef[trace.Side], trace.ffloor);
 	}
 }
 
@@ -6433,7 +6423,7 @@ void SpawnShootDecal(AActor *t1, const FTraceResults &trace)
 
 static void SpawnDeepSplash(AActor *t1, const FTraceResults &trace, AActor *puff)
 {
-	const fixedvec3 *hitpos;
+	const DVector3 *hitpos;
 	if (trace.Crossed3DWater)
 	{
 		hitpos = &trace.Crossed3DWaterPos;
@@ -6444,7 +6434,7 @@ static void SpawnDeepSplash(AActor *t1, const FTraceResults &trace, AActor *puff
 	}
 	else return;
 
-	P_HitWater(puff != NULL ? puff : t1, P_PointInSector(hitpos->x, hitpos->y), *hitpos);
+	P_HitWater(puff != NULL ? puff : t1, P_PointInSector(*hitpos), *hitpos);
 }
 
 //=============================================================================

src/p_mobj.cpp

@@ -315,7 +315,7 @@ void AActor::Serialize(FArchive &arc)
 		<< reactiontime
 		<< threshold
 		<< player
-		<< SpawnPoint[0] << SpawnPoint[1] << SpawnPoint[2]
+		<< SpawnPoint
 		<< SpawnAngle;
 	if (SaveVersion >= 4506)
 	{
@@ -838,7 +838,7 @@ AInventory *AActor::DropInventory (AInventory *item)
 	{
 		return NULL;
 	}
-	drop->SetOrigin(PosPlusZ(10*FRACUNIT), false);
+	drop->SetOrigin(PosPlusZ(10.), false);
 	drop->Angles.Yaw = Angles.Yaw;
 	drop->VelFromAngle(5.);
 	drop->Vel.Z = 1.;
@@ -2208,13 +2208,13 @@ explode:
 	// killough 8/11/98: add bouncers
 	// killough 9/15/98: add objects falling off ledges
 	// killough 11/98: only include bouncers hanging off ledges
-	if ((mo->flags & MF_CORPSE) || (mo->BounceFlags & BOUNCE_MBF && mo->_f_Z() > mo->dropoffz) || (mo->flags6 & MF6_FALLING))
+	if ((mo->flags & MF_CORPSE) || (mo->BounceFlags & BOUNCE_MBF && mo->Z() > mo->dropoffz) || (mo->flags6 & MF6_FALLING))
 	{ // Don't stop sliding if halfway off a step with some velocity
-		if (mo->_f_velx() > FRACUNIT/4 || mo->_f_velx() < -FRACUNIT/4 || mo->_f_vely() > FRACUNIT/4 || mo->_f_vely() < -FRACUNIT/4)
+		if (fabs(mo->Vel.X) > 0.25 || fabs(mo->Vel.Y) > 0.25)
 		{
-			if (mo->_f_floorz() > mo->Sector->floorplane.ZatPoint(mo))
+			if (mo->floorz > mo->Sector->floorplane.ZatPointF(mo))
 			{
-				if (mo->dropoffz != mo->_f_floorz()) // 3DMidtex or other special cases that must be excluded
+				if (mo->dropoffz != mo->floorz) // 3DMidtex or other special cases that must be excluded
 				{
 					unsigned i;
 					for(i=0;i<mo->Sector->e->XFloor.ffloors.Size();i++)
@@ -2739,7 +2739,7 @@ static void PlayerLandedOnThing (AActor *mo, AActor *onmobj)
 //
 void P_NightmareRespawn (AActor *mobj)
 {
-	fixed_t x, y, z;
+	double z;
 	AActor *mo;
 	AActor *info = mobj->GetDefault();
 
@@ -2754,13 +2754,11 @@ void P_NightmareRespawn (AActor *mobj)
 		z = ONFLOORZ;
 
 	// spawn it
-	x = mobj->SpawnPoint[0];
-	y = mobj->SpawnPoint[1];
-	mo = AActor::StaticSpawn(mobj->GetClass(), x, y, z, NO_REPLACE, true);
+	mo = AActor::StaticSpawn(mobj->GetClass(), DVector3(mobj->SpawnPoint.X, mobj->SpawnPoint.Y, z), NO_REPLACE, true);
 
 	if (z == ONFLOORZ)
 	{
-		mo->_f_AddZ(mobj->SpawnPoint[2]);
+		mo->AddZ(mobj->SpawnPoint.Z);
 		if (mo->Z() < mo->floorz)
 		{ // Do not respawn monsters in the floor, even if that's where they
 		  // started. The initial P_ZMovement() call would have put them on
@@ -2775,7 +2773,7 @@ void P_NightmareRespawn (AActor *mobj)
 	}
 	else if (z == ONCEILINGZ)
 	{
-		mo->_f_AddZ(-mobj->SpawnPoint[2]);
+		mo->AddZ(-mobj->SpawnPoint.Z);
 	}
 
 	// If there are 3D floors, we need to find floor/ceiling again.
@@ -2797,7 +2795,7 @@ void P_NightmareRespawn (AActor *mobj)
 	}
 
 	// something is occupying its position?
-	if (!P_CheckPosition(mo, mo->_f_X(), mo->_f_Y(), true))
+	if (!P_CheckPosition(mo, mo->Pos(), true))
 	{
 		//[GrafZahl] MF_COUNTKILL still needs to be checked here.
 		mo->ClearCounters();
@@ -2805,12 +2803,10 @@ void P_NightmareRespawn (AActor *mobj)
 		return;		// no respawn
 	}
 
-	z = mo->_f_Z();
+	z = mo->Z();
 
 	// inherit attributes from deceased one
-	mo->SpawnPoint[0] = mobj->SpawnPoint[0];
-	mo->SpawnPoint[1] = mobj->SpawnPoint[1];
-	mo->SpawnPoint[2] = mobj->SpawnPoint[2];
+	mo->SpawnPoint = mobj->SpawnPoint;
 	mo->SpawnAngle = mobj->SpawnAngle;
 	mo->SpawnFlags = mobj->SpawnFlags & ~MTF_DORMANT;	// It wasn't dormant when it died, so it's not dormant now, either.
 	mo->Angles.Yaw = (double)mobj->SpawnAngle;
@@ -2822,13 +2818,13 @@ void P_NightmareRespawn (AActor *mobj)
 
 	mo->skillrespawncount = mobj->skillrespawncount;
 
-	mo->PrevZ = z;		// Do not interpolate Z position if we changed it since spawning.
+	mo->PrevZ = FLOAT2FIXED(z);		// Do not interpolate Z position if we changed it since spawning.
 
 	// spawn a teleport fog at old spot because of removal of the body?
 	P_SpawnTeleportFog(mobj, mobj->PosPlusZ(TELEFOGHEIGHT), true, true);
 
 	// spawn a teleport fog at the new spot
-	P_SpawnTeleportFog(mobj, FIXED2DBL(x), FIXED2DBL(y), FIXED2DBL(z) + TELEFOGHEIGHT, false, true);
+	P_SpawnTeleportFog(mobj, DVector3(mobj->SpawnPoint, z + TELEFOGHEIGHT), false, true);
 
 	// remove the old monster
 	mobj->Destroy ();
@@ -3445,7 +3441,7 @@ void AActor::Tick ()
 			{
 				// add some smoke behind the rocket 
 				smokecounter = 0;
-				AActor *th = Spawn("RocketSmokeTrail", Vec3Offset(-_f_velx(), -_f_vely(), -_f_velz()), ALLOW_REPLACE);
+				AActor *th = Spawn("RocketSmokeTrail", Vec3Offset(-Vel), ALLOW_REPLACE);
 				if (th)
 				{
 					th->tics -= pr_rockettrail()&3;
@@ -3747,7 +3743,7 @@ void AActor::Tick ()
 						const sector_t *sec = node->m_sector;
 						if (sec->floorplane.c >= STEEPSLOPE)
 						{
-							if (floorplane.ZatPoint (PosRelative(node->m_sector)) >= _f_Z() - _f_MaxStepHeight())
+							if (floorplane.ZatPointF (PosRelative(node->m_sector)) >= Z() - MaxStepHeight)
 							{
 								dopush = false;
 								break;
@@ -4115,7 +4111,7 @@ bool AActor::UpdateWaterLevel (fixed_t oldz, bool dosplash)
 	// the water flags. 
 	if (boomwaterlevel == 0 && waterlevel != 0 && dosplash) 
 	{
-		P_HitWater(this, Sector, FIXED_MIN, FIXED_MIN, FLOAT2FIXED(fh), true);
+		P_HitWater(this, Sector, PosAtZ(fh), true);
 	}
 	boomwaterlevel = waterlevel;
 	if (reset)
@@ -4132,7 +4128,7 @@ bool AActor::UpdateWaterLevel (fixed_t oldz, bool dosplash)
 //
 //==========================================================================
 
-AActor *AActor::StaticSpawn (PClassActor *type, fixed_t ix, fixed_t iy, fixed_t iz, replace_t allowreplacement, bool SpawningMapThing)
+AActor *AActor::StaticSpawn (PClassActor *type, const DVector3 &pos, replace_t allowreplacement, bool SpawningMapThing)
 {
 	if (type == NULL)
 	{
@@ -4159,7 +4155,7 @@ AActor *AActor::StaticSpawn (PClassActor *type, fixed_t ix, fixed_t iy, fixed_t
 		actor->Conversation = NULL;
 	}
 
-	actor->SetXYZ(ix, iy, iz);
+	actor->SetXYZ(pos);
 	actor->picnum.SetInvalid();
 	actor->health = actor->SpawnHealth();
 
@@ -4196,18 +4192,16 @@ AActor *AActor::StaticSpawn (PClassActor *type, fixed_t ix, fixed_t iy, fixed_t
 	actor->LinkToWorld (SpawningMapThing);
 	actor->ClearInterpolation();
 
-	actor->dropoffz =			// killough 11/98: for tracking dropoffs
-		actor->Sector->floorplane.ZatPoint (ix, iy);
-	actor->floorz = FIXED2DBL(actor->dropoffz);
-	actor->ceilingz = FIXED2DBL(actor->Sector->ceilingplane.ZatPoint (ix, iy));
+	actor->dropoffz = actor->floorz = actor->Sector->floorplane.ZatPoint(pos);
+	actor->ceilingz = actor->Sector->ceilingplane.ZatPoint(pos);
 
 	// The z-coordinate needs to be set once before calling P_FindFloorCeiling
 	// For FLOATRANDZ just use the floor here.
-	if (iz == ONFLOORZ || iz == FLOATRANDZ)
+	if (pos.Z == ONFLOORZ || pos.Z == FLOATRANDZ)
 	{
 		actor->SetZ(actor->floorz);
 	}
-	else if (iz == ONCEILINGZ)
+	else if (pos.Z == ONCEILINGZ)
 	{
 		actor->SetZ(actor->ceilingz - actor->Height);
 	}
@@ -4243,18 +4237,19 @@ AActor *AActor::StaticSpawn (PClassActor *type, fixed_t ix, fixed_t iy, fixed_t
 		actor->ceilingsector = actor->Sector;
 	}
 
-	actor->SpawnPoint[0] = ix;
-	actor->SpawnPoint[1] = iy;
+	actor->SpawnPoint.X = pos.X;
+	actor->SpawnPoint.Y = pos.Y;
+	// do not copy Z!
 
-	if (iz == ONFLOORZ)
+	if (pos.Z == ONFLOORZ)
 	{
 		actor->SetZ(actor->floorz);
 	}
-	else if (iz == ONCEILINGZ)
+	else if (pos.Z == ONCEILINGZ)
 	{
 		actor->SetZ(actor->ceilingz - actor->Height);
 	}
-	else if (iz == FLOATRANDZ)
+	else if (pos.Z == FLOATRANDZ)
 	{
 		double space = actor->ceilingz - actor->Height - actor->floorz;
 		if (space > 48)
@@ -4269,7 +4264,7 @@ AActor *AActor::StaticSpawn (PClassActor *type, fixed_t ix, fixed_t iy, fixed_t
 	}
 	else
 	{
-		actor->SpawnPoint[2] = (actor->_f_Z() - actor->Sector->floorplane.ZatPoint(actor));
+		actor->SpawnPoint.Z = (actor->Z() - actor->Sector->floorplane.ZatPointF(actor));
 	}
 
 	if (actor->FloatBobPhase == (BYTE)-1) actor->FloatBobPhase = rng();	// Don't make everything bob in sync (unless deliberately told to do)
@@ -4281,7 +4276,7 @@ AActor *AActor::StaticSpawn (PClassActor *type, fixed_t ix, fixed_t iy, fixed_t
 	{
 		actor->Floorclip = 0;
 	}
-	actor->UpdateWaterLevel (actor->_f_Z(), false);
+	actor->UpdateWaterLevel (actor->Z(), false);
 	if (!SpawningMapThing)
 	{
 		actor->BeginPlay ();
@@ -4312,19 +4307,9 @@ AActor *AActor::StaticSpawn (PClassActor *type, fixed_t ix, fixed_t iy, fixed_t
 	return actor;
 }
 
-AActor *Spawn (const char *type, fixed_t x, fixed_t y, fixed_t z, replace_t allowreplacement)
+PClassActor *ClassForSpawn(FName classname)
 {
-	FName classname(type, true);
-	if (classname == NAME_None)
-	{
-		I_Error("Attempt to spawn actor of unknown type '%s'\n", type);
-	}
-	return Spawn(classname, x, y, z, allowreplacement);
-}
-
-AActor *Spawn (FName classname, fixed_t x, fixed_t y, fixed_t z, replace_t allowreplacement)
-{
-	const PClass *cls = PClass::FindClass(classname);
+	PClass *cls = PClass::FindClass(classname);
 	if (cls == NULL)
 	{
 		I_Error("Attempt to spawn actor of unknown type '%s'\n", classname.GetChars());
@@ -4333,7 +4318,7 @@ AActor *Spawn (FName classname, fixed_t x, fixed_t y, fixed_t z, replace_t allow
 	{
 		I_Error("Attempt to spawn non-actor of type '%s'\n", classname.GetChars());
 	}
-	return AActor::StaticSpawn (const_cast<PClassActor *>(static_cast<const PClassActor *>(cls)), x, y, z, allowreplacement);
+	return static_cast<PClassActor*>(cls);
 }
 
 void AActor::LevelSpawned ()
@@ -4572,7 +4557,7 @@ APlayerPawn *P_SpawnPlayer (FPlayerStart *mthing, int playernum, int flags)
 	player_t *p;
 	APlayerPawn *mobj, *oldactor;
 	BYTE	  state;
-	fixed_t spawn_x, spawn_y, spawn_z;
+	DVector3 spawn;
 	DAngle SpawnAngle;
 
 	if (mthing == NULL)
@@ -4628,16 +4613,13 @@ APlayerPawn *P_SpawnPlayer (FPlayerStart *mthing, int playernum, int flags)
 		( NULL != p->attacker ) &&							// don't respawn on damaging floors
 		( p->mo->Sector->damageamount < TELEFRAG_DAMAGE ))	// this really should be a bit smarter...
 	{
-		spawn_x = p->mo->_f_X();
-		spawn_y = p->mo->_f_Y();
-		spawn_z = p->mo->_f_Z();
-
+		spawn = p->mo->Pos();
 		SpawnAngle = p->mo->Angles.Yaw;
 	}
 	else
 	{
-		spawn_x = mthing->_f_X();
-		spawn_y = mthing->_f_Y();
+		spawn.X = mthing->pos.X;
+		spawn.Y = mthing->pos.Y;
 
 		// Allow full angular precision
 		SpawnAngle = (double)mthing->angle;
@@ -4647,21 +4629,21 @@ APlayerPawn *P_SpawnPlayer (FPlayerStart *mthing, int playernum, int flags)
 		}
 
 		if (GetDefaultByType(p->cls)->flags & MF_SPAWNCEILING)
-			spawn_z = ONCEILINGZ;
+			spawn.Z = ONCEILINGZ;
 		else if (GetDefaultByType(p->cls)->flags2 & MF2_SPAWNFLOAT)
-			spawn_z = FLOATRANDZ;
+			spawn.Z = FLOATRANDZ;
 		else
-			spawn_z = ONFLOORZ;
+			spawn.Z = ONFLOORZ;
 	}
 
 	mobj = static_cast<APlayerPawn *>
-		(Spawn (p->cls, spawn_x, spawn_y, spawn_z, NO_REPLACE));
+		(Spawn (p->cls, spawn, NO_REPLACE));
 
 	if (level.flags & LEVEL_USEPLAYERSTARTZ)
 	{
-		if (spawn_z == ONFLOORZ)
+		if (spawn.Z == ONFLOORZ)
 			mobj->AddZ(mthing->pos.Z);
-		else if (spawn_z == ONCEILINGZ)
+		else if (spawn.Z == ONCEILINGZ)
 			mobj->AddZ(-mthing->pos.Z);
 		P_FindFloorCeiling(mobj, FFCF_SAMESECTOR | FFCF_ONLY3DFLOORS | FFCF_3DRESTRICT);
 	}
@@ -4782,7 +4764,7 @@ APlayerPawn *P_SpawnPlayer (FPlayerStart *mthing, int playernum, int flags)
 
 	if (multiplayer)
 	{
-		Spawn ("TeleportFog", mobj->Vec3Angle(20, mobj->Angles.Yaw, TELEFOGHEIGHT), ALLOW_REPLACE);
+		Spawn ("TeleportFog", mobj->Vec3Angle(20., mobj->Angles.Yaw, TELEFOGHEIGHT), ALLOW_REPLACE);
 	}
 
 	// "Fix" for one of the starts on exec.wad MAP01: If you start inside the ceiling,
@@ -4841,7 +4823,6 @@ AActor *P_SpawnMapThing (FMapThing *mthing, int position)
 	PClassActor *i;
 	int mask;
 	AActor *mobj;
-	fixed_t x, y, z;
 
 	if (mthing->EdNum == 0 || mthing->EdNum == -1)
 		return NULL;
@@ -4852,9 +4833,8 @@ AActor *P_SpawnMapThing (FMapThing *mthing, int position)
 	if (mentry == NULL)
 	{
 		// [RH] Don't die if the map tries to spawn an unknown thing
-		Printf ("Unknown type %i at (%i, %i)\n",
-				 mthing->EdNum,
-				 mthing->x>>FRACBITS, mthing->y>>FRACBITS);
+		Printf("Unknown type %i at (%.1f, %.1f)\n",
+			mthing->EdNum, mthing->pos.X, mthing->pos.Y);
 		mentry = DoomEdMap.CheckKey(0);
 		if (mentry == NULL)	// we need a valid entry for the rest of this function so if we can't find a default, let's exit right away.
 		{
@@ -4895,8 +4875,8 @@ AActor *P_SpawnMapThing (FMapThing *mthing, int position)
 	{
 		polyspawns_t *polyspawn = new polyspawns_t;
 		polyspawn->next = polyspawns;
-		polyspawn->x = mthing->x;
-		polyspawn->y = mthing->y;
+		polyspawn->x = FLOAT2FIXED(mthing->pos.X);
+		polyspawn->y = FLOAT2FIXED(mthing->pos.Y);
 		polyspawn->angle = mthing->angle;
 		polyspawn->type = mentry->Special;
 		polyspawns = polyspawn;
@@ -5030,7 +5010,7 @@ AActor *P_SpawnMapThing (FMapThing *mthing, int position)
 		}
 		else
 		{
-			P_PointInSector (mthing->x,	mthing->y)->seqType = type;
+			P_PointInSector (mthing->pos)->seqType = type;
 		}
 		return NULL;
 	}
@@ -5051,8 +5031,8 @@ AActor *P_SpawnMapThing (FMapThing *mthing, int position)
 			if (gameinfo.flags & GI_SHAREWARE)
 				return NULL;
 
-			Printf ("%s at (%i, %i) has no frames\n",
-					i->TypeName.GetChars(), mthing->x>>FRACBITS, mthing->y>>FRACBITS);
+			Printf ("%s at (%.1f, %.1f) has no frames\n",
+					i->TypeName.GetChars(), mthing->pos.X, mthing->pos.Y);
 			i = PClass::FindActor("Unknown");
 			assert(i->IsKindOf(RUNTIME_CLASS(PClassActor)));
 		}
@@ -5106,32 +5086,29 @@ AActor *P_SpawnMapThing (FMapThing *mthing, int position)
 	}
 
 	// spawn it
-	x = mthing->x;
-	y = mthing->y;
+	double sz;
 
 	if (info->flags & MF_SPAWNCEILING)
-		z = ONCEILINGZ;
+		sz = ONCEILINGZ;
 	else if (info->flags2 & MF2_SPAWNFLOAT)
-		z = FLOATRANDZ;
+		sz = FLOATRANDZ;
 	else
-		z = ONFLOORZ;
+		sz = ONFLOORZ;
 
-	mobj = AActor::StaticSpawn (i, x, y, z, NO_REPLACE, true);
+	mobj = AActor::StaticSpawn (i, DVector3(mthing->pos, sz), NO_REPLACE, true);
 
-	if (z == ONFLOORZ)
+	if (sz == ONFLOORZ)
 	{
-		mobj->_f_AddZ(mthing->z);
+		mobj->AddZ(mthing->pos.Z);
 		if ((mobj->flags2 & MF2_FLOATBOB) && (ib_compatflags & BCOMPATF_FLOATBOB))
 		{
-			mobj->specialf1 = FIXED2DBL(mthing->z);
+			mobj->specialf1 = mthing->pos.Z;
 		}
 	}
-	else if (z == ONCEILINGZ)
-		mobj->_f_AddZ(-mthing->z);
+	else if (sz == ONCEILINGZ)
+		mobj->AddZ(-mthing->pos.Z);
 
-	mobj->SpawnPoint[0] = mthing->x;
-	mobj->SpawnPoint[1] = mthing->y;
-	mobj->SpawnPoint[2] = mthing->z;
+	mobj->SpawnPoint = mthing->pos;
 	mobj->SpawnAngle = mthing->angle;
 	mobj->SpawnFlags = mthing->flags;
 	if (mthing->FloatbobPhase >= 0 && mthing->FloatbobPhase < 64) mobj->FloatBobPhase = mthing->FloatbobPhase;
@@ -5218,14 +5195,15 @@ AActor *P_SpawnMapThing (FMapThing *mthing, int position)
 // P_SpawnPuff
 //
 
-AActor *P_SpawnPuff (AActor *source, PClassActor *pufftype, fixed_t x, fixed_t y, fixed_t z, angle_t hitdir, angle_t particledir, int updown, int flags, AActor *vict)
+AActor *P_SpawnPuff (AActor *source, PClassActor *pufftype, const DVector3 &pos, DAngle hitdir, DAngle particledir, int updown, int flags, AActor *vict)
 {
 	AActor *puff;
+	double z = 0;
 	
 	if (!(flags & PF_NORANDOMZ))
-		z += pr_spawnpuff.Random2 () << 10;
+		z = pr_spawnpuff.Random2() / 64.;
 
-	puff = Spawn (pufftype, x, y, z, ALLOW_REPLACE);
+	puff = Spawn(pufftype, pos + DVector3(0, 0, z), ALLOW_REPLACE);
 	if (puff == NULL) return NULL;
 
 	if ((puff->flags4 & MF4_RANDOMIZE) && puff->tics > 0)
@@ -5247,7 +5225,7 @@ AActor *P_SpawnPuff (AActor *source, PClassActor *pufftype, fixed_t x, fixed_t y
 		puff->target = source;
 	
 	// Angle is the opposite of the hit direction (i.e. the puff faces the source.)
-	puff->Angles.Yaw = ANGLE2DBL(hitdir + ANGLE_180);
+	puff->Angles.Yaw = hitdir + 180;
 
 	// If a puff has a crash state and an actor was not hit,
 	// it will enter the crash state. This is used by the StrifeSpark
@@ -5272,7 +5250,7 @@ AActor *P_SpawnPuff (AActor *source, PClassActor *pufftype, fixed_t x, fixed_t y
 	{
 		if (cl_pufftype && updown != 3 && (puff->flags4 & MF4_ALLOWPARTICLES))
 		{
-			P_DrawSplash2 (32, x, y, z, particledir, updown, 1);
+			P_DrawSplash2 (32, pos, particledir, updown, 1);
 			puff->renderflags |= RF_INVISIBLE;
 		}
 
@@ -5297,7 +5275,7 @@ AActor *P_SpawnPuff (AActor *source, PClassActor *pufftype, fixed_t x, fixed_t y
 // 
 //---------------------------------------------------------------------------
 
-void P_SpawnBlood (fixed_t x, fixed_t y, fixed_t z, angle_t dir, int damage, AActor *originator)
+void P_SpawnBlood (const DVector3 &pos, DAngle dir, int damage, AActor *originator)
 {
 	AActor *th;
 	PalEntry bloodcolor = originator->GetBloodColor();
@@ -5310,8 +5288,8 @@ void P_SpawnBlood (fixed_t x, fixed_t y, fixed_t z, angle_t dir, int damage, AAc
 
 	if (bloodcls != NULL)
 	{
-		z += pr_spawnblood.Random2 () << 10;
-		th = Spawn (bloodcls, x, y, z, NO_REPLACE); // GetBloodType already performed the replacement
+		double z = pr_spawnblood.Random2 () / 64.;
+		th = Spawn(bloodcls, pos + DVector3(0, 0, z), NO_REPLACE); // GetBloodType already performed the replacement
 		th->Vel.Z = 2;
 		th->Angles.Yaw = ANGLE2DBL(dir);
 		// [NG] Applying PUFFGETSOWNER to the blood will make it target the owner
@@ -5383,7 +5361,7 @@ void P_SpawnBlood (fixed_t x, fixed_t y, fixed_t z, angle_t dir, int damage, AAc
 	}
 
 	if (bloodtype >= 1)
-		P_DrawSplash2 (40, x, y, z, dir, 2, bloodcolor);
+		P_DrawSplash2 (40, pos, ANGLE2DBL(dir), 2, bloodcolor);
 }
 
 //---------------------------------------------------------------------------
@@ -5392,7 +5370,7 @@ void P_SpawnBlood (fixed_t x, fixed_t y, fixed_t z, angle_t dir, int damage, AAc
 //
 //---------------------------------------------------------------------------
 
-void P_BloodSplatter (fixedvec3 pos, AActor *originator)
+void P_BloodSplatter (const DVector3 &pos, AActor *originator, DAngle hitangle)
 {
 	PalEntry bloodcolor = originator->GetBloodColor();
 	PClassActor *bloodcls = originator->GetBloodType(1); 
@@ -5422,7 +5400,7 @@ void P_BloodSplatter (fixedvec3 pos, AActor *originator)
 	}
 	if (bloodtype >= 1)
 	{
-		P_DrawSplash2 (40, pos.x, pos.y, pos.z, 0u - originator->__f_AngleTo(pos), 2, bloodcolor);
+		P_DrawSplash2 (40, pos, hitangle-180., 2, bloodcolor);
 	}
 }
 
@@ -5432,7 +5410,7 @@ void P_BloodSplatter (fixedvec3 pos, AActor *originator)
 //
 //===========================================================================
 
-void P_BloodSplatter2 (fixedvec3 pos, AActor *originator)
+void P_BloodSplatter2 (const DVector3 &pos, AActor *originator, DAngle hitangle)
 {
 	PalEntry bloodcolor = originator->GetBloodColor();
 	PClassActor *bloodcls = originator->GetBloodType(2);
@@ -5446,10 +5424,11 @@ void P_BloodSplatter2 (fixedvec3 pos, AActor *originator)
 	{
 		AActor *mo;
 
-		pos.x += ((pr_splat()-128)<<11);
-		pos.y += ((pr_splat()-128)<<11);
+		DVector2 add;
+		add.X = (pr_splat()-128) / 32.;
+		add.Y = (pr_splat()-128) / 32.;
 
-		mo = Spawn (bloodcls, pos, NO_REPLACE); // GetBloodType already performed the replacement
+		mo = Spawn (bloodcls, pos + add, NO_REPLACE); // GetBloodType already performed the replacement
 		mo->target = originator;
 
 		// colorize the blood!
@@ -5462,7 +5441,7 @@ void P_BloodSplatter2 (fixedvec3 pos, AActor *originator)
 	}
 	if (bloodtype >= 1)
 	{
-		P_DrawSplash2 (100, pos.x, pos.y, pos.z, 0u - originator->__f_AngleTo(pos), 2, bloodcolor);
+		P_DrawSplash2(40, pos, hitangle - 180., 2, bloodcolor);
 	}
 }
 
@@ -5477,10 +5456,10 @@ void P_RipperBlood (AActor *mo, AActor *bleeder)
 	PalEntry bloodcolor = bleeder->GetBloodColor();
 	PClassActor *bloodcls = bleeder->GetBloodType();
 
-	fixed_t xo = (pr_ripperblood.Random2() << 12);
-	fixed_t yo = (pr_ripperblood.Random2() << 12);
-	fixed_t zo = (pr_ripperblood.Random2() << 12);
-	fixedvec3 pos = mo->Vec3Offset(xo, yo, zo);
+	double xo = pr_ripperblood.Random2() / 16.;
+	double yo = pr_ripperblood.Random2() / 16.;
+	double zo = pr_ripperblood.Random2() / 16.;
+	DVector3 pos = mo->Vec3Offset(xo, yo, zo);
 
 	int bloodtype = cl_bloodtype;
 	
@@ -5509,7 +5488,7 @@ void P_RipperBlood (AActor *mo, AActor *bleeder)
 	}
 	if (bloodtype >= 1)
 	{
-		P_DrawSplash2 (28, pos.x, pos.y, pos.z, 0, 0, bloodcolor);
+		P_DrawSplash2(28, pos, bleeder->AngleTo(mo) + 180., 0, bloodcolor);
 	}
 }
 
@@ -5538,7 +5517,7 @@ int P_GetThingFloorType (AActor *thing)
 // Returns true if hit liquid and splashed, false if not.
 //---------------------------------------------------------------------------
 
-bool P_HitWater (AActor * thing, sector_t * sec, fixed_t x, fixed_t y, fixed_t z, bool checkabove, bool alert, bool force)
+bool P_HitWater (AActor * thing, sector_t * sec, const DVector3 &pos, bool checkabove, bool alert, bool force)
 {
 	if (thing->flags3 & MF3_DONTSPLASH)
 		return false;
@@ -5551,18 +5530,15 @@ bool P_HitWater (AActor * thing, sector_t * sec, fixed_t x, fixed_t y, fixed_t z
 	int terrainnum;
 	sector_t *hsec = NULL;
 	
-	if (x == FIXED_MIN) x = thing->_f_X();
-	if (y == FIXED_MIN) y = thing->_f_Y();
-	if (z == FIXED_MIN) z = thing->_f_Z();
 	// don't splash above the object
 	if (checkabove)
 	{
-		fixed_t compare_z = thing->_f_Z() + (thing->_f_height() >> 1);
+		double compare_z = thing->Center();
 		// Missiles are typically small and fast, so they might
 		// end up submerged by the move that calls P_HitWater.
 		if (thing->flags & MF_MISSILE)
-			compare_z -= thing->_f_velz();
-		if (z > compare_z) 
+			compare_z -= thing->Vel.Z;
+		if (pos.Z > compare_z) 
 			return false;
 	}
 
@@ -5573,10 +5549,10 @@ bool P_HitWater (AActor * thing, sector_t * sec, fixed_t x, fixed_t y, fixed_t z
 	// it is not guaranteed that all players have GL nodes loaded.
 	if (!multiplayer && thing->subsector->sector != thing->subsector->render_sector)
 	{
-		fixed_t zs = thing->subsector->sector->floorplane.ZatPoint(x, y);
-		fixed_t zr = thing->subsector->render_sector->floorplane.ZatPoint(x, y);
+		double zs = thing->subsector->sector->floorplane.ZatPoint(pos);
+		double zr = thing->subsector->render_sector->floorplane.ZatPoint(pos);
 
-		if (zs > zr && thing->z >= zs) return false;
+		if (zs > zr && thing->Z() >= zs) return false;
 	}
 #endif
 
@@ -5585,20 +5561,20 @@ bool P_HitWater (AActor * thing, sector_t * sec, fixed_t x, fixed_t y, fixed_t z
 	{
 		for (unsigned int i = 0; i<sec->e->XFloor.ffloors.Size(); i++)
 		{
-		F3DFloor * rover = sec->e->XFloor.ffloors[i];
-		if (!(rover->flags & FF_EXISTS)) continue;
-		fixed_t planez = rover->top.plane->ZatPoint(x, y);
-			if (z > planez - FRACUNIT / 2 && z < planez + FRACUNIT / 2)	// allow minor imprecisions
-		{
-			if (rover->flags & (FF_SOLID | FF_SWIMMABLE))
+			F3DFloor * rover = sec->e->XFloor.ffloors[i];
+			if (!(rover->flags & FF_EXISTS)) continue;
+			double planez = rover->top.plane->ZatPoint(pos);
+				if (pos.Z > planez - 0.5 && pos.Z < planez + 0.5)	// allow minor imprecisions
 			{
-				terrainnum = rover->model->GetTerrain(rover->top.isceiling);
-				goto foundone;
+				if (rover->flags & (FF_SOLID | FF_SWIMMABLE))
+				{
+					terrainnum = rover->model->GetTerrain(rover->top.isceiling);
+					goto foundone;
+				}
 			}
+			planez = rover->bottom.plane->ZatPoint(pos);
+			if (planez < pos.Z && !(planez < thing->floorz)) return false;
 		}
-		planez = rover->bottom.plane->ZatPoint(x, y);
-		if (planez < z && !(planez < thing->_f_floorz())) return false;
-	}
 	}
 	hsec = sec->GetHeightSec();
 	if (force || hsec == NULL || !(hsec->MoreFlags & SECF_CLIPFAKEPLANES))
@@ -5619,13 +5595,13 @@ foundone:
 		return Terrains[terrainnum].IsLiquid;
 
 	// don't splash when touching an underwater floor
-	if (thing->waterlevel>=1 && z<=thing->_f_floorz()) return Terrains[terrainnum].IsLiquid;
+	if (thing->waterlevel >= 1 && pos.Z <= thing->floorz) return Terrains[terrainnum].IsLiquid;
 
 	plane = hsec != NULL? &sec->heightsec->floorplane : &sec->floorplane;
 
 	// Don't splash for living things with small vertical velocities.
 	// There are levels where the constant splashing from the monsters gets extremely annoying
-	if (((thing->flags3&MF3_ISMONSTER || thing->player) && thing->_f_velz() >= -6*FRACUNIT) && !force)
+	if (((thing->flags3&MF3_ISMONSTER || thing->player) && thing->Vel.Z >= -6) && !force)
 		return Terrains[terrainnum].IsLiquid;
 
 	splash = &Splashes[splashnum];
@@ -5636,14 +5612,14 @@ foundone:
 
 	if (smallsplash && splash->SmallSplash)
 	{
-		mo = Spawn (splash->SmallSplash, x, y, z, ALLOW_REPLACE);
+		mo = Spawn (splash->SmallSplash, pos, ALLOW_REPLACE);
 		if (mo) mo->Floorclip += FIXED2DBL(splash->SmallSplashClip);
 	}
 	else
 	{
 		if (splash->SplashChunk)
 		{
-			mo = Spawn (splash->SplashChunk, x, y, z, ALLOW_REPLACE);
+			mo = Spawn (splash->SplashChunk, pos, ALLOW_REPLACE);
 			mo->target = thing;
 			if (splash->ChunkXVelShift != 255)
 			{
@@ -5657,7 +5633,7 @@ foundone:
 		}
 		if (splash->SplashBase)
 		{
-			mo = Spawn (splash->SplashBase, x, y, z, ALLOW_REPLACE);
+			mo = Spawn (splash->SplashBase, pos, ALLOW_REPLACE);
 		}
 		if (thing->player && !splash->NoAlert && alert)
 		{
@@ -5672,7 +5648,7 @@ foundone:
 	}
 	else
 	{
-		S_Sound (x, y, z, CHAN_ITEM, smallsplash ?
+		S_Sound (pos, CHAN_ITEM, smallsplash ?
 			splash->SmallSplashSound : splash->NormalSplashSound,
 			1, ATTN_IDLE);
 	}
@@ -5754,7 +5730,8 @@ void P_CheckSplash(AActor *self, double distance)
 		// a separate parameter for that so this would get in the way of proper 
 		// behavior.
 		fixedvec3 pos = self->PosRelative(floorsec);
-		P_HitWater (self, floorsec, pos.x, pos.y, self->_f_floorz(), false, false);
+		pos.z = self->_f_floorz();
+		P_HitWater (self, floorsec, pos, false, false);
 	}
 }
 
@@ -5898,7 +5875,7 @@ AActor *P_SpawnMissile (AActor *source, AActor *dest, PClassActor *type, AActor
 	{
 		return NULL;
 	}
-	return P_SpawnMissileXYZ (source->_f_X(), source->_f_Y(), source->_f_Z() + 32*FRACUNIT + source->GetBobOffset(),
+	return P_SpawnMissileXYZ (source->_f_X(), source->_f_Y(), source->_f_Z() + 32*FRACUNIT + source->_f_GetBobOffset(),
 		source, dest, type, true, owner);
 }
 
@@ -5931,7 +5908,8 @@ AActor *P_SpawnMissileXYZ (fixed_t x, fixed_t y, fixed_t z,
 		z -= source->_f_floorclip();
 	}
 
-	AActor *th = Spawn (type, x, y, z, ALLOW_REPLACE);
+	DVector3 pos(FIXED2DBL(x), FIXED2DBL(y), FIXED2DBL(z));
+	AActor *th = Spawn (type, pos, ALLOW_REPLACE);
 	
 	P_PlaySpawnSound(th, source);
 
@@ -5991,7 +5969,7 @@ AActor *P_OldSpawnMissile(AActor *source, AActor *owner, AActor *dest, PClassAct
 	{
 		return NULL;
 	}
-	AActor *th = Spawn (type, source->PosPlusZ(4*8*FRACUNIT), ALLOW_REPLACE);
+	AActor *th = Spawn (type, source->PosPlusZ(32.), ALLOW_REPLACE);
 
 	P_PlaySpawnSound(th, source);
 	th->target = owner;		// record missile's originator
@@ -6028,7 +6006,7 @@ AActor *P_SpawnMissileAngle (AActor *source, PClassActor *type,
 	{
 		return NULL;
 	}
-	return P_SpawnMissileAngleZSpeed (source, source->_f_Z() + 32*FRACUNIT + source->GetBobOffset(),
+	return P_SpawnMissileAngleZSpeed (source, source->_f_Z() + 32*FRACUNIT + source->_f_GetBobOffset(),
 		type, angle, vz, GetDefaultSpeed (type));
 }
 
@@ -6079,7 +6057,7 @@ AActor *P_SpawnMissileAngleSpeed (AActor *source, PClassActor *type,
 	{
 		return NULL;
 	}
-	return P_SpawnMissileAngleZSpeed (source, source->_f_Z() + 32*FRACUNIT + source->GetBobOffset(),
+	return P_SpawnMissileAngleZSpeed (source, source->_f_Z() + 32*FRACUNIT + source->_f_GetBobOffset(),
 		type, angle, vz, speed);
 }
 
@@ -6097,7 +6075,7 @@ AActor *P_SpawnMissileAngleZSpeed (AActor *source, fixed_t z,
 		z -= source->_f_floorclip();
 	}
 
-	mo = Spawn (type, source->_f_X(), source->_f_Y(), z, ALLOW_REPLACE);
+	mo = Spawn (type, source->PosAtZ(FIXED2FLOAT(z)), ALLOW_REPLACE);
 
 	P_PlaySpawnSound(mo, source);
 	if (owner == NULL) owner = source;
@@ -6479,12 +6457,12 @@ int AActor::SpawnHealth() const
 	}
 	else if (flags & MF_FRIENDLY)
 	{
-		int adj = FixedMul(defhealth, G_SkillProperty(SKILLP_FriendlyHealth));
+		int adj = int(defhealth * G_SkillProperty(SKILLP_FriendlyHealth));
 		return (adj <= 0) ? 1 : adj;
 	}
 	else
 	{
-		int adj = FixedMul(defhealth, G_SkillProperty(SKILLP_MonsterHealth));
+		int adj = int(defhealth * G_SkillProperty(SKILLP_MonsterHealth));
 		return (adj <= 0) ? 1 : adj;
 	}
 }

src/p_pspr.cpp

@@ -367,12 +367,12 @@ void P_DropWeapon (player_t *player)
 //
 //============================================================================
 
-void P_BobWeapon (player_t *player, pspdef_t *psp, fixed_t *x, fixed_t *y)
+void P_BobWeapon (player_t *player, pspdef_t *psp, float *x, float *y)
 {
-	static fixed_t curbob;
+	static float curbob;
 
 	AWeapon *weapon;
-	fixed_t bobtarget;
+	float bobtarget;
 
 	weapon = player->ReadyWeapon;
 
@@ -384,26 +384,26 @@ void P_BobWeapon (player_t *player, pspdef_t *psp, fixed_t *x, fixed_t *y)
 
 	// [XA] Get the current weapon's bob properties.
 	int bobstyle = weapon->BobStyle;
-	int bobspeed = (weapon->BobSpeed * 128) >> 16;
-	fixed_t rangex = weapon->BobRangeX;
-	fixed_t rangey = weapon->BobRangeY;
+	float BobSpeed = (weapon->BobSpeed * 128);
+	float Rangex = weapon->BobRangeX;
+	float Rangey = weapon->BobRangeY;
 
 	// Bob the weapon based on movement speed.
-	int angle = (bobspeed*35/TICRATE*level.time)&FINEMASK;
+	FAngle angle = (BobSpeed * 35 / TICRATE*level.time) * (360.f / 8192.f);
 
 	// [RH] Smooth transitions between bobbing and not-bobbing frames.
 	// This also fixes the bug where you can "stick" a weapon off-center by
 	// shooting it when it's at the peak of its swing.
-	bobtarget = (player->WeaponState & WF_WEAPONBOBBING) ? FLOAT2FIXED(player->bob) : 0;
+	bobtarget = float((player->WeaponState & WF_WEAPONBOBBING) ? player->bob : 0.);
 	if (curbob != bobtarget)
 	{
-		if (abs (bobtarget - curbob) <= 1*FRACUNIT)
+		if (fabsf (bobtarget - curbob) <= 1)
 		{
 			curbob = bobtarget;
 		}
 		else
 		{
-			fixed_t zoom = MAX<fixed_t> (1*FRACUNIT, abs (curbob - bobtarget) / 40);
+			float zoom = MAX (1.f,  fabsf (curbob - bobtarget) / 40);
 			if (curbob > bobtarget)
 			{
 				curbob -= zoom;
@@ -417,38 +417,38 @@ void P_BobWeapon (player_t *player, pspdef_t *psp, fixed_t *x, fixed_t *y)
 
 	if (curbob != 0)
 	{
-		fixed_t bobx = fixed_t(player->bob * rangex);
-		fixed_t boby = fixed_t(player->bob * rangey);
-		switch (bobstyle)
+		float bobx = float(player->bob * Rangex);
+		float boby = float(player->bob * Rangey);
+		switch (level.levelnum)//bobstyle)
 		{
 		case AWeapon::BobNormal:
-			*x = FixedMul(bobx, finecosine[angle]);
-			*y = FixedMul(boby, finesine[angle & (FINEANGLES/2-1)]);
+			*x = bobx * angle.Cos();
+			*y = boby * fabsf(angle.Sin());
 			break;
 			
 		case AWeapon::BobInverse:
-			*x = FixedMul(bobx, finecosine[angle]);
-			*y = boby - FixedMul(boby, finesine[angle & (FINEANGLES/2-1)]);
+			*x = bobx*angle.Cos();
+			*y = boby * (1.f - fabsf(angle.Sin()));
 			break;
 			
 		case AWeapon::BobAlpha:
-			*x = FixedMul(bobx, finesine[angle]);
-			*y = FixedMul(boby, finesine[angle & (FINEANGLES/2-1)]);
+			*x = bobx * angle.Sin();
+			*y = boby * fabsf(angle.Sin());
 			break;
 			
 		case AWeapon::BobInverseAlpha:
-			*x = FixedMul(bobx, finesine[angle]);
-			*y = boby - FixedMul(boby, finesine[angle & (FINEANGLES/2-1)]);
+			*x = bobx * angle.Sin();
+			*y = boby * (1.f - fabsf(angle.Sin()));
 			break;
 			
 		case AWeapon::BobSmooth:
-			*x = FixedMul(bobx, finecosine[angle]);
-			*y = (boby - FixedMul(boby, finecosine[angle*2 & (FINEANGLES-1)])) / 2;
+			*x = bobx*angle.Cos();
+			*y = 0.5f * (boby * (1.f - fabsf((angle * 2).Cos())));
 			break;
 
 		case AWeapon::BobInverseSmooth:
-			*x = FixedMul(bobx, finecosine[angle]);
-			*y = (FixedMul(boby, finecosine[angle*2 & (FINEANGLES-1)]) + boby) / 2;
+			*x = bobx*angle.Cos();
+			*y = 0.5f * (boby * (1.f + fabsf((angle * 2).Cos())));
 		}
 	}
 	else

src/p_pspr.h

@@ -87,7 +87,7 @@ void P_CalcSwing (player_t *player);
 void P_BringUpWeapon (player_t *player);
 void P_FireWeapon (player_t *player);
 void P_DropWeapon (player_t *player);
-void P_BobWeapon (player_t *player, pspdef_t *psp, fixed_t *x, fixed_t *y);
+void P_BobWeapon (player_t *player, pspdef_t *psp, float *x, float *y);
 DAngle P_BulletSlope (AActor *mo, FTranslatedLineTarget *pLineTarget = NULL, int aimflags = 0);
 
 void P_GunShot (AActor *mo, bool accurate, PClassActor *pufftype, DAngle pitch);

src/p_setup.cpp

@@ -1671,8 +1671,8 @@ AActor *SpawnMapThing(int index, FMapThing *mt, int position)
 	AActor *spawned = P_SpawnMapThing(mt, position);
 	if (dumpspawnedthings)
 	{
-		Printf("%5d: (%5d, %5d, %5d), doomednum = %5d, flags = %04x, type = %s\n",
-			index, mt->x>>FRACBITS, mt->y>>FRACBITS, mt->z>>FRACBITS, mt->EdNum, mt->flags, 
+		Printf("%5d: (%5f, %5f, %5f), doomednum = %5d, flags = %04x, type = %s\n",
+			index, mt->pos.X, mt->pos.Y, mt->pos.Z, mt->EdNum, mt->flags, 
 			spawned? spawned->GetClass()->TypeName.GetChars() : "(none)");
 	}
 	T_AddSpawnedThing(spawned);
@@ -1765,8 +1765,8 @@ void P_LoadThings (MapData * map)
 		mti[i].health = 1;
 		mti[i].FloatbobPhase = -1;
 
-		mti[i].x = LittleShort(mt->x) << FRACBITS;
-		mti[i].y = LittleShort(mt->y) << FRACBITS;
+		mti[i].pos.X = LittleShort(mt->x);
+		mti[i].pos.Y = LittleShort(mt->y);
 		mti[i].angle = LittleShort(mt->angle);
 		mti[i].EdNum = LittleShort(mt->type);
 		mti[i].info = DoomEdMap.CheckKey(mti[i].EdNum);
@@ -1838,9 +1838,9 @@ void P_LoadThings2 (MapData * map)
 		memset (&mti[i], 0, sizeof(mti[i]));
 
 		mti[i].thingid = LittleShort(mth[i].thingid);
-		mti[i].x = LittleShort(mth[i].x)<<FRACBITS;
-		mti[i].y = LittleShort(mth[i].y)<<FRACBITS;
-		mti[i].z = LittleShort(mth[i].z)<<FRACBITS;
+		mti[i].pos.X = LittleShort(mth[i].x);
+		mti[i].pos.Y = LittleShort(mth[i].y);
+		mti[i].pos.Z = LittleShort(mth[i].z);
 		mti[i].angle = LittleShort(mth[i].angle);
 		mti[i].EdNum = LittleShort(mth[i].type);
 		mti[i].info = DoomEdMap.CheckKey(mti[i].EdNum);
@@ -3368,8 +3368,8 @@ void P_GetPolySpots (MapData * map, TArray<FNodeBuilder::FPolyStart> &spots, TAr
 			if (mentry != NULL && mentry->Type == NULL && mentry->Special >= SMT_PolyAnchor && mentry->Special <= SMT_PolySpawnHurt)
 			{
 				FNodeBuilder::FPolyStart newvert;
-				newvert.x = MapThingsConverted[i].x;
-				newvert.y = MapThingsConverted[i].y;
+				newvert.x = FLOAT2FIXED(MapThingsConverted[i].pos.X);
+				newvert.y = FLOAT2FIXED(MapThingsConverted[i].pos.Y);
 				newvert.polynum = MapThingsConverted[i].angle;
 				if (mentry->Special == SMT_PolyAnchor)
 				{
@@ -3609,7 +3609,7 @@ void P_SetupLevel (const char *lumpname, int position)
 	translationtables[TRANSLATION_LevelScripted].Clear();
 
 	// Initial height of PointOfView will be set by player think.
-	players[consoleplayer].viewz = -FLT_MAX; 
+	players[consoleplayer].viewz = NO_VALUE; 
 
 	// Make sure all sounds are stopped before Z_FreeTags.
 	S_Start ();

src/p_slopes.cpp

@@ -277,7 +277,7 @@ void P_VavoomSlope(sector_t * sec, int id, fixed_t x, fixed_t y, fixed_t z, int
 
 static void P_SetSlopesFromVertexHeights(FMapThing *firstmt, FMapThing *lastmt, const int *oldvertextable)
 {
-	TMap<int, fixed_t> vt_heights[2];
+	TMap<int, double> vt_heights[2];
 	FMapThing *mt;
 	bool vt_found = false;
 
@@ -289,15 +289,15 @@ static void P_SetSlopesFromVertexHeights(FMapThing *firstmt, FMapThing *lastmt,
 			{
 				for (int i = 0; i < numvertexes; i++)
 				{
-					if (vertexes[i].x == mt->x && vertexes[i].y == mt->y)
+					if (vertexes[i].fX() == mt->pos.X && vertexes[i].fY() == mt->pos.Y)
 					{
 						if (mt->info->Special == SMT_VertexFloorZ)
 						{
-							vt_heights[0][i] = mt->z;
+							vt_heights[0][i] = mt->pos.Z;
 						}
 						else
 						{
-							vt_heights[1][i] = mt->z;
+							vt_heights[1][i] = mt->pos.Z;
 						}
 						vt_found = true;
 					}
@@ -345,25 +345,20 @@ static void P_SetSlopesFromVertexHeights(FMapThing *firstmt, FMapThing *lastmt,
 			vi3 = (sec->lines[1]->v1 == sec->lines[0]->v1 || sec->lines[1]->v1 == sec->lines[0]->v2)?
 				int(sec->lines[1]->v2 - vertexes) : int(sec->lines[1]->v1 - vertexes);
 
-			vt1.X = FIXED2DBL(vertexes[vi1].x);
-			vt1.Y = FIXED2DBL(vertexes[vi1].y);
-			vt2.X = FIXED2DBL(vertexes[vi2].x);
-			vt2.Y = FIXED2DBL(vertexes[vi2].y);
-			vt3.X = FIXED2DBL(vertexes[vi3].x);
-			vt3.Y = FIXED2DBL(vertexes[vi3].y);
+			vt1 = DVector3(vertexes[vi1].fPos(), 0);
+			vt2 = DVector3(vertexes[vi2].fPos(), 0);
+			vt3 = DVector3(vertexes[vi3].fPos(), 0);
 
 			for(int j=0; j<2; j++)
 			{
-				fixed_t *h1 = vt_heights[j].CheckKey(vi1);
-				fixed_t *h2 = vt_heights[j].CheckKey(vi2);
-				fixed_t *h3 = vt_heights[j].CheckKey(vi3);
-				fixed_t z3;
+				double *h1 = vt_heights[j].CheckKey(vi1);
+				double *h2 = vt_heights[j].CheckKey(vi2);
+				double *h3 = vt_heights[j].CheckKey(vi3);
 				if (h1==NULL && h2==NULL && h3==NULL) continue;
 
-				vt1.Z = FIXED2DBL(h1? *h1 : j==0? sec->GetPlaneTexZ(sector_t::floor) : sec->GetPlaneTexZ(sector_t::ceiling));
-				vt2.Z = FIXED2DBL(h2? *h2 : j==0? sec->GetPlaneTexZ(sector_t::floor) : sec->GetPlaneTexZ(sector_t::ceiling));
-				z3 = h3? *h3 : j==0? sec->GetPlaneTexZ(sector_t::floor) : sec->GetPlaneTexZ(sector_t::ceiling);
-				vt3.Z = FIXED2DBL(z3);
+				vt1.Z = h1? *h1 : j==0? sec->GetPlaneTexZF(sector_t::floor) : sec->GetPlaneTexZF(sector_t::ceiling);
+				vt2.Z = h2? *h2 : j==0? sec->GetPlaneTexZF(sector_t::floor) : sec->GetPlaneTexZF(sector_t::ceiling);
+				vt3.Z = h3? *h3 : j==0? sec->GetPlaneTexZF(sector_t::floor) : sec->GetPlaneTexZF(sector_t::ceiling);
 
 				if (P_PointOnLineSidePrecise(vertexes[vi3].x, vertexes[vi3].y, sec->lines[0]) == 0)
 				{
@@ -401,7 +396,7 @@ static void P_SetSlopesFromVertexHeights(FMapThing *firstmt, FMapThing *lastmt,
 				srcplane->ic = DivScale32 (1, srcplane->c);
 				srcplane->d = -TMulScale16 (srcplane->a, vertexes[vi3].x,
 											srcplane->b, vertexes[vi3].y,
-											srcplane->c, z3);
+											srcplane->c, FLOAT2FIXED(vt3.Z));
 			}
 		}
 	}
@@ -422,14 +417,12 @@ void P_SpawnSlopeMakers (FMapThing *firstmt, FMapThing *lastmt, const int *oldve
 		if (mt->info != NULL && mt->info->Type == NULL &&
 		   (mt->info->Special >= SMT_SlopeFloorPointLine && mt->info->Special <= SMT_VavoomCeiling))
 		{
-			fixed_t x, y, z;
+			DVector3 pos = mt->pos;
 			secplane_t *refplane;
 			sector_t *sec;
 			bool ceiling;
 
-			x = mt->x;
-			y = mt->y;
-			sec = P_PointInSector (x, y);
+			sec = P_PointInSector (mt->pos);
 			if (mt->info->Special == SMT_SlopeCeilingPointLine || mt->info->Special == SMT_VavoomCeiling || mt->info->Special == SMT_SetCeilingSlope)
 			{
 				refplane = &sec->ceilingplane;
@@ -440,7 +433,12 @@ void P_SpawnSlopeMakers (FMapThing *firstmt, FMapThing *lastmt, const int *oldve
 				refplane = &sec->floorplane;
 				ceiling = false;
 			}
-			z = refplane->ZatPoint (x, y) + (mt->z);
+			pos.Z = refplane->ZatPoint (mt->pos) + mt->pos.Z;
+
+			fixed_t x = FLOAT2FIXED(pos.X);
+			fixed_t y = FLOAT2FIXED(pos.Y);
+			fixed_t z = FLOAT2FIXED(pos.Z);
+
 			if (mt->info->Special <= SMT_SlopeCeilingPointLine)
 			{ // SlopeFloorPointLine and SlopCeilingPointLine
 				P_SlopeLineToPoint (mt->args[0], x, y, z, ceiling);
@@ -451,7 +449,7 @@ void P_SpawnSlopeMakers (FMapThing *firstmt, FMapThing *lastmt, const int *oldve
 			}
 			else 
 			{ // VavoomFloor and VavoomCeiling
-				P_VavoomSlope(sec, mt->thingid, x, y, mt->z, ceiling); 
+				P_VavoomSlope(sec, mt->thingid, x, y, FLOAT2FIXED(mt->pos.Z), ceiling); 
 			}
 			mt->EdNum = 0;
 		}
@@ -462,7 +460,7 @@ void P_SpawnSlopeMakers (FMapThing *firstmt, FMapThing *lastmt, const int *oldve
 		if (mt->info != NULL && mt->info->Type == NULL &&
 			(mt->info->Special == SMT_CopyFloorPlane || mt->info->Special == SMT_CopyCeilingPlane))
 		{
-			P_CopyPlane (mt->args[0], mt->x, mt->y, mt->info->Special == SMT_CopyCeilingPlane);
+			P_CopyPlane (mt->args[0], FLOAT2FIXED(mt->pos.X), FLOAT2FIXED(mt->pos.Y), mt->info->Special == SMT_CopyCeilingPlane);
 			mt->EdNum = 0;
 		}
 	}

src/p_spec.cpp

@@ -476,7 +476,7 @@ void P_PlayerInSpecialSector (player_t *player, sector_t * sector)
 				}
 				if (sector->Flags & SECF_DMGTERRAINFX)
 				{
-					P_HitWater(player->mo, player->mo->Sector, INT_MIN, INT_MIN, INT_MIN, false, true, true);
+					P_HitWater(player->mo, player->mo->Sector, player->mo->Pos(), false, true, true);
 				}
 			}
 		}
@@ -1053,22 +1053,19 @@ void P_SpawnPortal(line_t *line, int sectortag, int plane, int alpha, int linked
 			lines[i].args[3] == 1)
 		{
 			// beware of overflows.
-			fixed_t x1 = fixed_t((SQWORD(line->v1->x) + SQWORD(line->v2->x)) >> 1);
-			fixed_t y1 = fixed_t((SQWORD(line->v1->y) + SQWORD(line->v2->y)) >> 1);
-			fixed_t x2 = fixed_t((SQWORD(lines[i].v1->x) + SQWORD(lines[i].v2->x)) >> 1);
-			fixed_t y2 = fixed_t((SQWORD(lines[i].v1->y) + SQWORD(lines[i].v2->y)) >> 1);
-			fixed_t z = linked ? line->frontsector->planes[plane].TexZ : 0;	// the map's sector height defines the portal plane for linked portals
+			DVector3 pos1((line->v1->fX() + line->v2->fX()) / 2, (line->v1->fY() + line->v2->fY()) / 2, 0);
+			DVector3 pos2((lines[i].v1->fX() + lines[i].v2->fX()) / 2, (lines[i].v1->fY() + lines[i].v2->fY()) / 2, 0);
+			double z = linked ? line->frontsector->GetPlaneTexZF(plane) : 0;	// the map's sector height defines the portal plane for linked portals
 
 			fixed_t alpha = Scale (lines[i].args[4], OPAQUE, 255);
 
-			AStackPoint *anchor = Spawn<AStackPoint>(x1, y1, 0, NO_REPLACE);
-			AStackPoint *reference = Spawn<AStackPoint>(x2, y2, 0, NO_REPLACE);
+			AStackPoint *anchor = Spawn<AStackPoint>(pos1, NO_REPLACE);
+			AStackPoint *reference = Spawn<AStackPoint>(pos2, NO_REPLACE);
 			reference->special1 = linked ? SKYBOX_LINKEDPORTAL : SKYBOX_PORTAL;
 			anchor->special1 = SKYBOX_ANCHOR;
 			// store the portal displacement in the unused scaleX/Y members of the portal reference actor.
-			anchor->Scale.X = -(reference->Scale.X = FIXED2DBL(x2 - x1));
-			anchor->Scale.Y = -(reference->Scale.Y = FIXED2DBL(y2 - y1));
-			anchor->specialf1 = reference->specialf1 = FIXED2FLOAT(z);
+			anchor->Scale = -(reference->Scale = pos2 - pos1);
+			anchor->specialf1 = reference->specialf1 = z;
 
 			reference->Mate = anchor;
 			anchor->Mate = reference;

src/p_spec.h

@@ -924,19 +924,18 @@ enum
 	TELF_KEEPHEIGHT			= 16,
 };
 
-void P_SpawnTeleportFog(AActor *mobj, fixed_t x, fixed_t y, fixed_t z, bool beforeTele = true, bool setTarget = false); //Spawns teleport fog. Pass the actor to pluck TeleFogFromType and TeleFogToType. 'from' determines if this is the fog to spawn at the old position (true) or new (false).
-inline void P_SpawnTeleportFog(AActor *mobj, const fixedvec3 &pos, bool beforeTele = true, bool setTarget = false)
-{
-	P_SpawnTeleportFog(mobj, pos.x, pos.y, pos.z, beforeTele, setTarget);
-}
-inline void P_SpawnTeleportFog(AActor *mobj, const DVector3 &pos, bool beforeTele = true, bool setTarget = false)
-{
-	P_SpawnTeleportFog(mobj, FLOAT2FIXED(pos.X), FLOAT2FIXED(pos.Y), FLOAT2FIXED(pos.Z), beforeTele, setTarget);
-}
-inline void P_SpawnTeleportFog(AActor *mobj, double x, double y, double z, bool beforeTele = true, bool setTarget = false)
+//Spawns teleport fog. Pass the actor to pluck TeleFogFromType and TeleFogToType. 'from' determines if this is the fog to spawn at the old position (true) or new (false).
+void P_SpawnTeleportFog(AActor *mobj, const DVector3 &pos, bool beforeTele = true, bool setTarget = false);
+
+void P_SpawnTeleportFog(AActor *mobj, fixed_t x, fixed_t y, fixed_t z, bool beforeTele = true, bool setTarget = false) = delete;
+inline void P_SpawnTeleportFog(AActor *mobj, const fixedvec3 &pos, bool beforeTele = true, bool setTarget = false) = delete;
+inline void P_SpawnTeleportFog(AActor *mobj, double x, double y, double z, bool beforeTele = true, bool setTarget = false) = delete;
+/*
 {
 	P_SpawnTeleportFog(mobj, FLOAT2FIXED(x), FLOAT2FIXED(y), FLOAT2FIXED(z), beforeTele, setTarget);
 }
+*/
+
 bool P_Teleport (AActor *thing, fixed_t x, fixed_t y, fixed_t z, DAngle angle, int flags); // bool useFog, bool sourceFog, bool keepOrientation, bool haltVelocity = true, bool keepHeight = false
 inline bool P_Teleport(AActor *thing, const DVector3 &pos, DAngle angle, int flags)
 {
@@ -966,7 +965,7 @@ void P_DoDeferedScripts (void);
 //
 // [RH] p_quake.c
 //
-bool P_StartQuakeXYZ(AActor *activator, int tid, int intensityX, int intensityY, int intensityZ, int duration, int damrad, int tremrad, FSoundID quakesfx, int flags, double waveSpeedX, double waveSpeedY, double waveSpeedZ);
+bool P_StartQuakeXYZ(AActor *activator, int tid, int intensityX, int intensityY, int intensityZ, int duration, int damrad, int tremrad, FSoundID quakesfx, int flags, double waveSpeedX, double waveSpeedY, double waveSpeedZ, int falloff, int highpoint);
 bool P_StartQuake(AActor *activator, int tid, int intensity, int duration, int damrad, int tremrad, FSoundID quakesfx);
 
 #endif

src/p_teleport.cpp

@@ -78,7 +78,7 @@ void ATeleportFog::PostBeginPlay ()
 //
 //==========================================================================
 
-void P_SpawnTeleportFog(AActor *mobj, fixed_t x, fixed_t y, fixed_t z, bool beforeTele, bool setTarget)
+void P_SpawnTeleportFog(AActor *mobj, const DVector3 &pos, bool beforeTele, bool setTarget)
 {
 	AActor *mo;
 	if ((beforeTele ? mobj->TeleFogSourceType : mobj->TeleFogDestType) == NULL)
@@ -88,7 +88,7 @@ void P_SpawnTeleportFog(AActor *mobj, fixed_t x, fixed_t y, fixed_t z, bool befo
 	}
 	else
 	{
-		mo = Spawn((beforeTele ? mobj->TeleFogSourceType : mobj->TeleFogDestType), x, y, z, ALLOW_REPLACE);
+		mo = Spawn((beforeTele ? mobj->TeleFogSourceType : mobj->TeleFogDestType), pos, ALLOW_REPLACE);
 	}
 
 	if (mo != NULL && setTarget)
@@ -103,7 +103,7 @@ bool P_Teleport (AActor *thing, fixed_t x, fixed_t y, fixed_t z, DAngle angle, i
 {
 	bool predicting = (thing->player && (thing->player->cheats & CF_PREDICTING));
 
-	fixedvec3 old;
+	DVector3 old;
 	fixed_t aboveFloor;
 	player_t *player;
 	sector_t *destsect;
@@ -111,7 +111,7 @@ bool P_Teleport (AActor *thing, fixed_t x, fixed_t y, fixed_t z, DAngle angle, i
 	fixed_t floorheight, ceilingheight;
 	double missilespeed = 0;
 
-	old = thing->_f_Pos();
+	old = thing->Pos();
 	aboveFloor = thing->_f_Z() - thing->_f_floorz();
 	destsect = P_PointInSector (x, y);
 	// killough 5/12/98: exclude voodoo dolls:
@@ -194,7 +194,7 @@ bool P_Teleport (AActor *thing, fixed_t x, fixed_t y, fixed_t z, DAngle angle, i
 			double fogDelta = thing->flags & MF_MISSILE ? 0 : TELEFOGHEIGHT;
 			DVector2 vector = angle.ToVector(20);
 			DVector2 fogpos = P_GetOffsetPosition(FIXED2DBL(x), FIXED2DBL(y), vector.X, vector.Y);
-			P_SpawnTeleportFog(thing, fogpos.X, fogpos.Y, thing->Z() + fogDelta, false, true);
+			P_SpawnTeleportFog(thing, DVector3(fogpos, thing->Z() + fogDelta), false, true);
 
 		}
 		if (thing->player)

src/p_things.cpp

@@ -123,21 +123,17 @@ bool P_Thing_Spawn (int tid, AActor *source, int type, DAngle angle, bool fog, i
 // [BC] Added
 // [RH] Fixed
 
-bool P_MoveThing(AActor *source, fixed_t x, fixed_t y, fixed_t z, bool fog)
+bool P_MoveThing(AActor *source, const DVector3 &pos, bool fog)
 {
-	fixed_t oldx, oldy, oldz;
+	DVector3 old = source->Pos();
 
-	oldx = source->_f_X();
-	oldy = source->_f_Y();
-	oldz = source->_f_Z();
-
-	source->SetOrigin (x, y, z, true);
+	source->SetOrigin (pos, true);
 	if (P_TestMobjLocation (source))
 	{
 		if (fog)
 		{
-			P_SpawnTeleportFog(source, x, y, z, false, true);
-			P_SpawnTeleportFog(source, oldx, oldy, oldz, true, true);
+			P_SpawnTeleportFog(source, pos, false, true);
+			P_SpawnTeleportFog(source, old, true, true);
 		}
 		source->ClearInterpolation();
 		if (source == players[consoleplayer].camera)
@@ -148,7 +144,7 @@ bool P_MoveThing(AActor *source, fixed_t x, fixed_t y, fixed_t z, bool fog)
 	}
 	else
 	{
-		source->SetOrigin (oldx, oldy, oldz, true);
+		source->SetOrigin (old, true);
 		return false;
 	}
 }
@@ -167,7 +163,7 @@ bool P_Thing_Move (int tid, AActor *source, int mapspot, bool fog)
 
 	if (source != NULL && target != NULL)
 	{
-		return P_MoveThing(source, target->_f_X(), target->_f_Y(), target->_f_Z(), fog);
+		return P_MoveThing(source, target->Pos(), fog);
 	}
 	return false;
 }
@@ -221,7 +217,7 @@ bool P_Thing_Projectile (int tid, AActor *source, int type, const char *type_nam
 		{
 			do
 			{
-				fixed_t z = spot->_f_Z();
+				double z = spot->Z();
 				if (defflags3 & MF3_FLOORHUGGER)
 				{
 					z = ONFLOORZ;
@@ -232,9 +228,9 @@ bool P_Thing_Projectile (int tid, AActor *source, int type, const char *type_nam
 				}
 				else if (z != ONFLOORZ)
 				{
-					z -= spot->_f_floorclip();
+					z -= spot->Floorclip;
 				}
-				mobj = Spawn (kind, spot->_f_X(), spot->_f_Y(), z, ALLOW_REPLACE);
+				mobj = Spawn (kind, spot->PosAtZ(z), ALLOW_REPLACE);
 
 				if (mobj)
 				{
@@ -795,7 +791,7 @@ int P_Thing_Warp(AActor *caller, AActor *reference, fixed_t xofs, fixed_t yofs,
 			}
 			if ((flags & WARPF_BOB) && (reference->flags2 & MF2_FLOATBOB))
 			{
-				caller->_f_AddZ(reference->GetBobOffset());
+				caller->_f_AddZ(reference->_f_GetBobOffset());
 			}
 		}
 		return true;

src/p_tick.cpp

@@ -57,7 +57,7 @@ bool P_CheckTickerPaused ()
 			 ConsoleState == c_down || ConsoleState == c_falling)
 		 && !demoplayback
 		 && !demorecording
-		 && players[consoleplayer].viewz != -FLT_MAX
+		 && players[consoleplayer].viewz != NO_VALUE
 		 && wipegamestate == gamestate)
 	{
 		S_PauseSound (!(level.flags2 & LEVEL2_PAUSE_MUSIC_IN_MENUS), false);

src/p_trace.cpp

@@ -94,9 +94,9 @@ struct FTraceInfo
 
 	void SetSourcePosition()
 	{
-		Results->SrcFromTarget = { StartX, StartY, StartZ };
-		Results->HitVector = { Vx, Vy, Vz };
-		Results->SrcAngleToTarget = R_PointToAngle2(0, 0, Results->HitPos.x - StartX, Results->HitPos.y - StartY);
+		Results->SrcFromTarget = { FIXED2DBL(StartX), FIXED2DBL(StartY), FIXED2DBL(StartZ) };
+		Results->HitVector = { FIXED2DBL(Vx), FIXED2DBL(Vy), FIXED2DBL(Vz) };
+		Results->SrcAngleFromTarget = VecToAngle(Results->HitVector);
 	}
 
 
@@ -122,7 +122,7 @@ bool Trace (fixed_t x, fixed_t y, fixed_t z, sector_t *sector,
 	FTraceResults tempResult;
 
 	memset(&tempResult, 0, sizeof(tempResult));
-	tempResult.Fraction = tempResult.Distance = FIXED_MAX;
+	tempResult.Fraction = tempResult.Distance = NO_VALUE;
 
 	ptflags = actorMask ? PT_ADDLINES|PT_ADDTHINGS|PT_COMPATIBLE : PT_ADDLINES;
 
@@ -652,10 +652,10 @@ cont:
 
 		if (Results->HitType == TRACE_HitWall)
 		{
-			Results->HitPos = { hitx, hity, hitz };
+			Results->HitPos = { FIXED2DBL(hitx), FIXED2DBL(hity), FIXED2DBL(hitz) };
 			SetSourcePosition();
-			Results->Distance = dist;
-			Results->Fraction = in->frac;
+			Results->Distance = FIXED2DBL(dist);
+			Results->Fraction = FIXED2DBL(in->frac);
 			Results->Line = in->d.line;
 			Results->Side = lineside;
 		}
@@ -779,10 +779,10 @@ cont1:
 
 
 	Results->HitType = TRACE_HitActor;
-	Results->HitPos = { hitx, hity, hitz };
+	Results->HitPos = { FIXED2DBL(hitx), FIXED2DBL(hity), FIXED2DBL(hitz) };
 	SetSourcePosition();
-	Results->Distance = dist;
-	Results->Fraction = in->frac;
+	Results->Distance = FIXED2DBL(dist);
+	Results->Fraction = FIXED2DBL(in->frac);
 	Results->Actor = in->d.thing;
 
 	if (TraceCallback != NULL)
@@ -836,7 +836,7 @@ bool FTraceInfo::TraceTraverse (int ptflags)
 		}
 
 		// We have something closer in the storage for portal subtraces.
-		if (TempResults->HitType != TRACE_HitNone && in->frac > TempResults->Fraction)
+		if (TempResults->HitType != TRACE_HitNone && FIXED2DBL(in->frac) > TempResults->Fraction)
 		{
 			break;
 		}
@@ -859,7 +859,7 @@ bool FTraceInfo::TraceTraverse (int ptflags)
 		// We still need to do a water check here or this may get missed on occasion
 		if (Results->CrossedWater == NULL &&
 			CurSector->heightsec != NULL &&
-			CurSector->heightsec->floorplane.ZatPoint(Results->HitPos) >= Results->HitPos.z)
+			CurSector->heightsec->floorplane.ZatPoint(Results->HitPos) >= Results->HitPos.Z)
 		{
 			// Save the result so that the water check doesn't destroy it.
 			FTraceResults *res = Results;
@@ -896,7 +896,7 @@ bool FTraceInfo::TraceTraverse (int ptflags)
 
 	if (Results->CrossedWater == NULL &&
 		CurSector->heightsec != NULL &&
-		CurSector->heightsec->floorplane.ZatPoint(Results->HitPos) >= Results->HitPos.z)
+		CurSector->heightsec->floorplane.ZatPoint(Results->HitPos) >= Results->HitPos.Z)
 	{
 		// Save the result so that the water check doesn't destroy it.
 		FTraceResults *res = Results;
@@ -913,12 +913,12 @@ bool FTraceInfo::TraceTraverse (int ptflags)
 	if (Results->HitType == TRACE_HitNone && Results->Distance == 0)
 	{
 		Results->HitPos = {
-			StartX + FixedMul(Vx, MaxDist),
-			StartY + FixedMul(Vy, MaxDist),
-			StartZ + FixedMul(Vz, MaxDist) };
+			FIXED2DBL(StartX + FixedMul(Vx, MaxDist)),
+			FIXED2DBL(StartY + FixedMul(Vy, MaxDist)),
+			FIXED2DBL(StartZ + FixedMul(Vz, MaxDist)) };
 		SetSourcePosition();
-		Results->Distance = MaxDist;
-		Results->Fraction = FRACUNIT;
+		Results->Distance = FIXED2DBL(MaxDist);
+		Results->Fraction = 1.;
 	}
 	return Results->HitType != TRACE_HitNone;
 }
@@ -944,12 +944,12 @@ bool FTraceInfo::CheckPlane (const secplane_t &plane)
 		if (hitdist > EnterDist && hitdist < MaxDist)
 		{
 			Results->HitPos = {
-				StartX + FixedMul(Vx, hitdist),
-				StartY + FixedMul(Vy, hitdist),
-				StartZ + FixedMul(Vz, hitdist) };
+				FIXED2DBL(StartX + FixedMul(Vx, hitdist)),
+				FIXED2DBL(StartY + FixedMul(Vy, hitdist)),
+				FIXED2DBL(StartZ + FixedMul(Vz, hitdist)) };
 			SetSourcePosition();
-			Results->Distance = hitdist;
-			Results->Fraction = FixedDiv (hitdist, MaxDist);
+			Results->Distance = FIXED2DBL(hitdist);
+			Results->Fraction = FIXED2DBL(FixedDiv (hitdist, MaxDist));
 			return true;
 		}
 	}

src/p_trace.h

@@ -65,13 +65,13 @@ struct FTraceResults
 {
 	sector_t *Sector;
 	FTextureID HitTexture;
-	fixedvec3 HitPos;
-	fixedvec3 HitVector;
-	fixedvec3 SrcFromTarget;
-	angle_t SrcAngleToTarget;
+	DVector3 HitPos;
+	DVector3 HitVector;
+	DVector3 SrcFromTarget;
+	DAngle SrcAngleFromTarget;
 
-	fixed_t Distance;
-	fixed_t Fraction;
+	double Distance;
+	double Fraction;
 
 	AActor *Actor;		// valid if hit an actor
 
@@ -83,9 +83,9 @@ struct FTraceResults
 	F3DFloor *ffloor;
 
 	sector_t *CrossedWater;		// For Boom-style, Transfer_Heights-based deep water
-	fixedvec3 CrossedWaterPos;	// remember the position so that we can use it for spawning the splash
+	DVector3 CrossedWaterPos;	// remember the position so that we can use it for spawning the splash
 	F3DFloor *Crossed3DWater;	// For 3D floor-based deep water
-	fixedvec3 Crossed3DWaterPos;
+	DVector3 Crossed3DWaterPos;
 
 	void CopyIfCloser(FTraceResults *other)
 	{
@@ -131,4 +131,13 @@ bool Trace (fixed_t x, fixed_t y, fixed_t z, sector_t *sector,
 			DWORD traceFlags=0,
 			ETraceStatus (*callback)(FTraceResults &res, void *)=NULL, void *callbackdata=NULL);
 
+inline bool Trace(const DVector3 &start, sector_t *sector, const DVector3 &direction, double maxDist,
+	ActorFlags ActorMask, DWORD WallMask, AActor *ignore, FTraceResults &res, DWORD traceFlags = 0,
+	ETraceStatus(*callback)(FTraceResults &res, void *) = NULL, void *callbackdata = NULL)
+{
+	return Trace(FLOAT2FIXED(start.X), FLOAT2FIXED(start.Y), FLOAT2FIXED(start.Z), sector,
+		FLOAT2FIXED(direction.X), FLOAT2FIXED(direction.Y), FLOAT2FIXED(direction.Z), FLOAT2FIXED(maxDist),
+		ActorMask, WallMask, ignore, res, traceFlags, callback, callbackdata);
+}
+
 #endif //__P_TRACE_H__

src/p_udmf.cpp

@@ -487,15 +487,15 @@ public:
 				break;
 
 			case NAME_X:
-				th->x = CheckFixed(key);
+				th->pos.X = CheckFloat(key);
 				break;
 
 			case NAME_Y:
-				th->y = CheckFixed(key);
+				th->pos.Y = CheckFloat(key);
 				break;
 
 			case NAME_Height:
-				th->z = CheckFixed(key);
+				th->pos.Z = CheckFloat(key);
 				break;
 
 			case NAME_Angle:
@@ -1678,32 +1678,28 @@ public:
 	{
 		vt->x = vt->y = 0;
 		vd->zCeiling = vd->zFloor = vd->flags = 0;
-		sc.MustGetStringName("{");
-		while (!sc.CheckString("}"))
+
+		sc.MustGetToken('{');
+		while (!sc.CheckToken('}'))
 		{
-			sc.MustGetString();
-			FName key = sc.String;
-			sc.MustGetStringName("=");
-			sc.MustGetString();
-			FString value = sc.String;
-			sc.MustGetStringName(";");
-			switch(key)
+			FName key = ParseKey();
+			switch (key)
 			{
 			case NAME_X:
-				vt->x = FLOAT2FIXED(strtod(value, NULL));
+				vt->x = CheckFixed(key);
 				break;
 
 			case NAME_Y:
-				vt->y = FLOAT2FIXED(strtod(value, NULL));
+				vt->y = CheckFixed(key);
 				break;
 
 			case NAME_ZCeiling:
-				vd->zCeiling = FLOAT2FIXED(strtod(value, NULL));
+				vd->zCeiling = CheckFloat(key);
 				vd->flags |= VERTEXFLAG_ZCeilingEnabled;
 				break;
 
 			case NAME_ZFloor:
-				vd->zFloor = FLOAT2FIXED(strtod(value, NULL));
+				vd->zFloor = CheckFloat(key);
 				vd->flags |= VERTEXFLAG_ZFloorEnabled;
 				break;
 

src/p_user.cpp

@@ -1650,7 +1650,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_SkullPop)
 	}
 
 	self->flags &= ~MF_SOLID;
-	mo = (APlayerPawn *)Spawn (spawntype, self->PosPlusZ(48*FRACUNIT), NO_REPLACE);
+	mo = (APlayerPawn *)Spawn (spawntype, self->PosPlusZ(48.), NO_REPLACE);
 	//mo->target = self;
 	mo->Vel.X = pr_skullpop.Random2() / 128.;
 	mo->Vel.Y = pr_skullpop.Random2() / 128.;

src/posix/cocoa/i_timer.cpp

@@ -186,7 +186,7 @@ unsigned int I_FPSTime()
 }
 
 
-fixed_t I_GetTimeFrac(uint32* ms)
+double I_GetTimeFrac(uint32* ms)
 {
 	const uint32_t now = I_MSTime();
 
@@ -196,8 +196,8 @@ fixed_t I_GetTimeFrac(uint32* ms)
 	}
 
 	return 0 == s_ticStart
-		? FRACUNIT
-		: clamp<fixed_t>( (now - s_ticStart) * FRACUNIT * TICRATE / 1000, 0, FRACUNIT);
+		? 1.
+		: clamp<double>( (now - s_ticStart) * TICRATE / 1000., 0, 1);
 }
 
 

src/posix/i_system.h

@@ -62,7 +62,7 @@ extern int (*I_WaitForTic) (int);
 // tic will never arrive (unless it's the current one).
 extern void (*I_FreezeTime) (bool frozen);
 
-fixed_t I_GetTimeFrac (uint32 *ms);
+double I_GetTimeFrac (uint32 *ms);
 
 // Return a seed value for the RNG.
 unsigned int I_MakeRNGSeed();

src/posix/sdl/i_timer.cpp

@@ -178,7 +178,7 @@ void I_SelectTimer()
 }
 
 // Returns the fractional amount of a tic passed since the most recent tic
-fixed_t I_GetTimeFrac (uint32 *ms)
+double I_GetTimeFrac (uint32 *ms)
 {
 	DWORD now = SDL_GetTicks ();
 	if (ms) *ms = TicStart + (1000 / TICRATE);
@@ -188,8 +188,7 @@ fixed_t I_GetTimeFrac (uint32 *ms)
 	}
 	else
 	{
-		fixed_t frac = clamp<fixed_t> ((now - TicStart)*FRACUNIT*TICRATE/1000, 0, FRACUNIT);
-		return frac;
+		return clamp<double>((now - TicStart) * TICRATE / 1000., 0, 1);
 	}
 }
 

src/r_defs.h

@@ -91,7 +91,7 @@ enum
 };
 struct vertexdata_t
 {
-	fixed_t zCeiling, zFloor;
+	double zCeiling, zFloor;
 	DWORD flags;
 };
 struct vertex_t
@@ -108,6 +108,11 @@ struct vertex_t
 		return FIXED2DBL(y);
 	}
 
+	DVector2 fPos()
+	{
+		return{ fX(), fY() };
+	}
+
 	float fx, fy;		// Floating point coordinates of this vertex (excluding polyoblect translation!)
 	angle_t viewangle;	// precalculated angle for clipping
 	int angletime;		// recalculation time for view angle

src/r_things.cpp

@@ -770,7 +770,7 @@ void R_ProjectSprite (AActor *thing, int fakeside, F3DFloor *fakefloor, F3DFloor
 	fixedvec3 pos = thing->InterpolatedPosition(r_TicFrac);
 	fx = pos.x;
 	fy = pos.y;
-	fz = pos.z + thing->GetBobOffset(r_TicFrac);
+	fz = pos.z + thing->_f_GetBobOffset(r_TicFrac);
 
 	tex = NULL;
 	voxel = NULL;
@@ -1350,12 +1350,11 @@ void R_DrawPSprite (pspdef_t* psp, int pspnum, AActor *owner, fixed_t sx, fixed_
 		{
 			if (RenderTarget != screen || viewheight == RenderTarget->GetHeight())
 			{
-				vis->texturemid -= weapon->YAdjust;
+				vis->texturemid -= FLOAT2FIXED(weapon->YAdjust);
 			}
 			else
 			{
-				vis->texturemid -= FixedMul (StatusBar->GetDisplacement (),
-					weapon->YAdjust);
+				vis->texturemid -= FLOAT2FIXED(StatusBar->GetDisplacement () * weapon->YAdjust);
 			}
 		}
 	}
@@ -1575,7 +1574,7 @@ void R_DrawPlayerSprites ()
 	if (camera->player != NULL)
 	{
 		fixed_t centerhack = centeryfrac;
-		fixed_t ofsx, ofsy;
+		float ofsx, ofsy;
 
 		centery = viewheight >> 1;
 		centeryfrac = centery << FRACBITS;
@@ -1590,7 +1589,7 @@ void R_DrawPlayerSprites ()
 			// [RH] Don't draw the targeter's crosshair if the player already has a crosshair set.
 			if (psp->state && (i != ps_targetcenter || CrosshairImage == NULL))
 			{
-				R_DrawPSprite (psp, i, camera, FLOAT2FIXED(psp->sx) + ofsx, FLOAT2FIXED(psp->sy) + ofsy);
+				R_DrawPSprite (psp, i, camera, FLOAT2FIXED(psp->sx + ofsx), FLOAT2FIXED(psp->sy + ofsy));
 			}
 			// [RH] Don't bob the targeter.
 			if (i == ps_flash)

src/r_utility.cpp

@@ -126,6 +126,7 @@ fixed_t 		viewsin, viewtansin;
 AActor			*camera;	// [RH] camera to draw from. doesn't have to be a player
 
 fixed_t			r_TicFrac;			// [RH] Fractional tic to render
+double			r_TicFracF;			// same as floating point
 DWORD			r_FrameTime;		// [RH] Time this frame started drawing (in ms)
 bool			r_NoInterpolate;
 bool			r_showviewer;
@@ -897,19 +898,18 @@ void R_AddInterpolationPoint(const fixedvec3a &vec)
 //
 //==========================================================================
 
-static fixed_t QuakePower(fixed_t factor, fixed_t intensity, fixed_t offset)
+static double QuakePower(double factor, double intensity, double offset, double falloff, double wfalloff)
 { 
-	fixed_t randumb;
-
+	double randumb;
 	if (intensity == 0)
 	{
 		randumb = 0;
 	}
 	else
 	{
-		randumb = pr_torchflicker(intensity * 2) - intensity;
+		randumb = pr_torchflicker.GenRand_Real2() * (intensity * 2) - intensity;
 	}
-	return FixedMul(factor, randumb + offset);
+	return factor * (wfalloff * offset + falloff * randumb);
 }
 
 //==========================================================================
@@ -966,7 +966,11 @@ void R_SetupFrame (AActor *actor)
 	{
 		sector_t *oldsector = R_PointInSubsector(iview->oviewx, iview->oviewy)->sector;
 		// [RH] Use chasecam view
-		P_AimCamera (camera, iview->nviewx, iview->nviewy, iview->nviewz, viewsector, unlinked);
+		DVector3 campos;
+		P_AimCamera (camera, campos, viewsector, unlinked);
+		iview->nviewx = FLOAT2FIXED(campos.X);
+		iview->nviewy = FLOAT2FIXED(campos.Y);
+		iview->nviewz = FLOAT2FIXED(campos.Z);
 		r_showviewer = true;
 		// Interpolating this is a very complicated thing because nothing keeps track of the aim camera's movement, so whenever we detect a portal transition
 		// it's probably best to just reset the interpolation for this move.
@@ -1002,11 +1006,12 @@ void R_SetupFrame (AActor *actor)
 		iview->otic = nowtic;
 	}
 
-	r_TicFrac = I_GetTimeFrac (&r_FrameTime);
+	r_TicFracF = I_GetTimeFrac (&r_FrameTime);
 	if (cl_capfps || r_NoInterpolate)
 	{
-		r_TicFrac = FRACUNIT;
+		r_TicFracF = 1.;
 	}
+	r_TicFrac = FLOAT2FIXED(r_TicFracF);
 
 	R_InterpolateView (player, r_TicFrac, iview);
 
@@ -1042,43 +1047,44 @@ void R_SetupFrame (AActor *actor)
 
 	if (!paused)
 	{
-		FQuakeJiggers jiggers = { 0, };
+		FQuakeJiggers jiggers;
 
+		memset(&jiggers, 0, sizeof(jiggers));
 		if (DEarthquake::StaticGetQuakeIntensities(camera, jiggers) > 0)
 		{
-			fixed_t quakefactor = FLOAT2FIXED(r_quakeintensity);
+			double quakefactor = r_quakeintensity;
+			DAngle an;
 
-			if ((jiggers.RelIntensityX | jiggers.RelOffsetX) != 0)
+			if (jiggers.RelIntensity.X != 0 || jiggers.RelOffset.X != 0)
 			{
-				int ang = (camera->_f_angle()) >> ANGLETOFINESHIFT;
-				fixed_t power = QuakePower(quakefactor, jiggers.RelIntensityX, jiggers.RelOffsetX);
-				viewx += FixedMul(finecosine[ang], power);
-				viewy += FixedMul(finesine[ang], power);
+				an = camera->Angles.Yaw;
+				double power = QuakePower(quakefactor, jiggers.RelIntensity.X, jiggers.RelOffset.X, jiggers.Falloff, jiggers.WFalloff);
+				viewx += FLOAT2FIXED(an.Cos() * power);
+				viewy += FLOAT2FIXED(an.Sin() * power);
 			}
-			if ((jiggers.RelIntensityY | jiggers.RelOffsetY) != 0)
+			if (jiggers.RelIntensity.Y != 0 || jiggers.RelOffset.Y != 0)
 			{
-				int ang = (camera->_f_angle() + ANG90) >> ANGLETOFINESHIFT;
-				fixed_t power = QuakePower(quakefactor, jiggers.RelIntensityY, jiggers.RelOffsetY);
-				viewx += FixedMul(finecosine[ang], power);
-				viewy += FixedMul(finesine[ang], power);
+				an = camera->Angles.Yaw + 90;
+				double power = QuakePower(quakefactor, jiggers.RelIntensity.Y, jiggers.RelOffset.Y, jiggers.Falloff, jiggers.WFalloff);
+				viewx += FLOAT2FIXED(an.Cos() * power);
+				viewy += FLOAT2FIXED(an.Sin() * power);
 			}
 			// FIXME: Relative Z is not relative
-			// [MC]On it! Will be introducing pitch after QF_WAVE.
-			if ((jiggers.RelIntensityZ | jiggers.RelOffsetZ) != 0)
+			if (jiggers.RelIntensity.Z != 0 || jiggers.RelOffset.Z != 0)
 			{
-				viewz += QuakePower(quakefactor, jiggers.RelIntensityZ, jiggers.RelOffsetZ);
+				viewz += FLOAT2FIXED(QuakePower(quakefactor, jiggers.RelIntensity.Z, jiggers.RelOffset.Z, jiggers.Falloff, jiggers.WFalloff));
 			}
-			if ((jiggers.IntensityX | jiggers.OffsetX) != 0)
+			if (jiggers.Intensity.X != 0 || jiggers.Offset.X != 0)
 			{
-				viewx += QuakePower(quakefactor, jiggers.IntensityX, jiggers.OffsetX);
+				viewx += FLOAT2FIXED(QuakePower(quakefactor, jiggers.Intensity.X, jiggers.Offset.X, jiggers.Falloff, jiggers.WFalloff));
 			}
-			if ((jiggers.IntensityY | jiggers.OffsetY) != 0)
+			if (jiggers.Intensity.Y != 0 || jiggers.Offset.Y != 0)
 			{
-				viewy += QuakePower(quakefactor, jiggers.IntensityY, jiggers.OffsetY);
+				viewy += FLOAT2FIXED(QuakePower(quakefactor, jiggers.Intensity.Y, jiggers.Offset.Y, jiggers.Falloff, jiggers.WFalloff));
 			}
-			if ((jiggers.IntensityZ | jiggers.OffsetZ) != 0)
+			if (jiggers.Intensity.Z != 0 || jiggers.Offset.Z != 0)
 			{
-				viewz += QuakePower(quakefactor, jiggers.IntensityZ, jiggers.OffsetZ);
+				viewz += FLOAT2FIXED(QuakePower(quakefactor, jiggers.Intensity.Z, jiggers.Offset.Z, jiggers.Falloff, jiggers.WFalloff));
 			}
 		}
 	}

src/r_utility.h

@@ -34,6 +34,7 @@ extern bool				LocalKeyboardTurner;	// [RH] The local player used the keyboard t
 extern int				WidescreenRatio;
 
 extern fixed_t			r_TicFrac;
+extern double			r_TicFracF;
 extern DWORD			r_FrameTime;
 extern int				extralight;
 extern unsigned int		R_OldBlend;

src/s_sound.cpp

@@ -2638,7 +2638,7 @@ CCMD (loopsound)
 		}
 		else
 		{
-			AActor *icon = Spawn("SpeakerIcon", players[consoleplayer].mo->PosPlusZ(32*FRACUNIT), ALLOW_REPLACE);
+			AActor *icon = Spawn("SpeakerIcon", players[consoleplayer].mo->PosPlusZ(32.), ALLOW_REPLACE);
 			if (icon != NULL)
 			{
 				S_Sound(icon, CHAN_BODY | CHAN_LOOP, id, 1.f, ATTN_IDLE);

src/s_sound.h

@@ -231,6 +231,10 @@ void S_SoundMinMaxDist (AActor *ent, int channel, FSoundID sfxid, float volume,
 void S_Sound (const FPolyObj *poly, int channel, FSoundID sfxid, float volume, float attenuation);
 void S_Sound (const sector_t *sec, int channel, FSoundID sfxid, float volume, float attenuation);
 void S_Sound (fixed_t x, fixed_t y, fixed_t z, int channel, FSoundID sfxid, float volume, float attenuation);
+inline void S_Sound(const DVector3 &pos, int channel, FSoundID sfxid, float volume, float attenuation)
+{
+	S_Sound(FLOAT2FIXED(pos.X), FLOAT2FIXED(pos.Y), FLOAT2FIXED(pos.Z), channel, sfxid, volume, attenuation);
+}
 
 // sound channels
 // channel 0 never willingly overrides

src/tarray.h

@@ -42,7 +42,7 @@
 
 #if !defined(_WIN32)
 #include <inttypes.h>		// for intptr_t
-#elif !defined(_MSC_VER)
+#else
 #include <stdint.h>			// for mingw
 #endif
 

src/thingdef/thingdef_codeptr.cpp

@@ -614,9 +614,9 @@ static void DoAttack (AActor *self, bool domelee, bool domissile,
 	else if (domissile && MissileType != NULL)
 	{
 		// This seemingly senseless code is needed for proper aiming.
-		double add = MissileHeight + FIXED2FLOAT(self->GetBobOffset()) - 32;
+		double add = MissileHeight + self->GetBobOffset() - 32;
 		self->AddZ(add);
-		AActor *missile = P_SpawnMissileXYZ (self->PosPlusZ(32*FRACUNIT), self, self->target, MissileType, false);
+		AActor *missile = P_SpawnMissileXYZ (self->PosPlusZ(32.), self, self->target, MissileType, false);
 		self->AddZ(-add);
 
 		if (missile)
@@ -1197,8 +1197,8 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_CustomMissile)
 {
 	PARAM_ACTION_PROLOGUE;
 	PARAM_CLASS		(ti, AActor);
-	PARAM_FIXED_OPT	(spawnheight) { spawnheight = 32*FRACUNIT; }
-	PARAM_INT_OPT	(spawnofs_xy) { spawnofs_xy = 0; }
+	PARAM_FLOAT_OPT	(Spawnheight) { Spawnheight = 32; }
+	PARAM_FLOAT_OPT	(Spawnofs_xy) { Spawnofs_xy = 0; }
 	PARAM_DANGLE_OPT(Angle)		  { Angle = 0.; }
 	PARAM_INT_OPT	(flags)		  { flags = 0; }
 	PARAM_DANGLE_OPT(Pitch)		  { Pitch = 0.; }
@@ -1215,29 +1215,29 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_CustomMissile)
 	{
 		if (ti) 
 		{
-			angle_t ang = (self->_f_angle() - ANGLE_90) >> ANGLETOFINESHIFT;
-			fixed_t x = spawnofs_xy * finecosine[ang];
-			fixed_t y = spawnofs_xy * finesine[ang];
-			fixed_t z = spawnheight + self->GetBobOffset() - 32*FRACUNIT + (self->player? FLOAT2FIXED(self->player->crouchoffset) : 0);
+			DAngle angle = self->Angles.Yaw - 90;
+			double x = Spawnofs_xy * angle.Cos();
+			double y = Spawnofs_xy * angle.Sin();
+			double z = Spawnheight + self->GetBobOffset() - 32 + (self->player? self->player->crouchoffset : 0.);
 
-			fixedvec3 pos = self->_f_Pos();
+			DVector3 pos = self->Pos();
 			switch (aimmode)
 			{
 			case 0:
 			default:
 				// same adjustment as above (in all 3 directions this time) - for better aiming!
 				self->SetXYZ(self->Vec3Offset(x, y, z));
-				missile = P_SpawnMissileXYZ(self->PosPlusZ(32*FRACUNIT), self, ref, ti, false);
+				missile = P_SpawnMissileXYZ(self->PosPlusZ(32.), self, ref, ti, false);
 				self->SetXYZ(pos);
 				break;
 
 			case 1:
-				missile = P_SpawnMissileXYZ(self->Vec3Offset(x, y, self->GetBobOffset() + spawnheight), self, ref, ti, false);
+				missile = P_SpawnMissileXYZ(self->Vec3Offset(x, y, self->GetBobOffset() + Spawnheight), self, ref, ti, false);
 				break;
 
 			case 2:
-				self->SetXYZ(self->Vec3Offset(x, y, 0));
-				missile = P_SpawnMissileAngleZSpeed(self, self->_f_Z() + self->GetBobOffset() + spawnheight, ti, self->_f_angle(), 0, GetDefaultByType(ti)->_f_speed(), self, false);
+				self->SetXYZ(self->Vec3Offset(x, y, 0.));
+				missile = P_SpawnMissileAngleZSpeed(self, self->Z() + self->GetBobOffset() + Spawnheight, ti, self->Angles.Yaw, 0, GetDefaultByType(ti)->Speed, self, false);
 				self->SetXYZ(pos);
 
 				flags |= CMF_ABSOLUTEPITCH;
@@ -1443,7 +1443,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_CustomComboAttack)
 {
 	PARAM_ACTION_PROLOGUE;
 	PARAM_CLASS		(ti, AActor);
-	PARAM_FIXED		(spawnheight);
+	PARAM_FLOAT		(spawnheight);
 	PARAM_INT		(damage);
 	PARAM_SOUND_OPT	(meleesound)	{ meleesound = 0; }
 	PARAM_NAME_OPT	(damagetype)	{ damagetype = NAME_Melee; }
@@ -1466,9 +1466,10 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_CustomComboAttack)
 	else if (ti) 
 	{
 		// This seemingly senseless code is needed for proper aiming.
-		self->_f_AddZ(spawnheight + self->GetBobOffset() - 32*FRACUNIT);
-		AActor *missile = P_SpawnMissileXYZ (self->PosPlusZ(32*FRACUNIT), self, self->target, ti, false);
-		self->_f_AddZ(-(spawnheight + self->GetBobOffset() - 32*FRACUNIT));
+		double add = spawnheight + self->GetBobOffset() - 32;
+		self->AddZ(add);
+		AActor *missile = P_SpawnMissileXYZ (self->PosPlusZ(32.), self, self->target, ti, false);
+		self->AddZ(-add);
 
 		if (missile)
 		{
@@ -2378,7 +2379,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_SpawnItem)
 	PARAM_ACTION_PROLOGUE;
 	PARAM_CLASS_OPT	(missile, AActor)		{ missile = PClass::FindActor("Unknown"); }
 	PARAM_FIXED_OPT	(distance)				{ distance = 0; }
-	PARAM_FIXED_OPT	(zheight)				{ zheight = 0; }
+	PARAM_FLOAT_OPT	(zheight)				{ zheight = 0; }
 	PARAM_BOOL_OPT	(useammo)				{ useammo = true; }
 	PARAM_BOOL_OPT	(transfer_translation)	{ transfer_translation = false; }
 
@@ -2414,7 +2415,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_SpawnItem)
 		}
 	}
 
-	AActor *mo = Spawn( missile, self->_f_Vec3Angle(distance, self->_f_angle(), -self->_f_floorclip() + self->GetBobOffset() + zheight), ALLOW_REPLACE);
+	AActor *mo = Spawn( missile, self->Vec3Angle(distance, self->Angles.Yaw, -self->Floorclip + self->GetBobOffset() + zheight), ALLOW_REPLACE);
 
 	int flags = (transfer_translation ? SIXF_TRANSFERTRANSLATION : 0) + (useammo ? SIXF_SETMASTER : 0);
 	ACTION_RETURN_BOOL(InitSpawnedItem(self, mo, flags));	// for an inventory item's use state
@@ -2431,9 +2432,9 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_SpawnItemEx)
 {
 	PARAM_ACTION_PROLOGUE;
 	PARAM_CLASS		(missile, AActor);
-	PARAM_FIXED_OPT	(xofs)		{ xofs = 0; }
-	PARAM_FIXED_OPT	(yofs)		{ yofs = 0; }
-	PARAM_FIXED_OPT	(zofs)		{ zofs = 0; }
+	PARAM_FLOAT_OPT	(xofs)		{ xofs = 0; }
+	PARAM_FLOAT_OPT	(yofs)		{ yofs = 0; }
+	PARAM_FLOAT_OPT	(zofs)		{ zofs = 0; }
 	PARAM_FLOAT_OPT	(xvel)		{ xvel = 0; }
 	PARAM_FLOAT_OPT	(yvel)		{ yvel = 0; }
 	PARAM_FLOAT_OPT	(zvel)		{ zvel = 0; }
@@ -2456,7 +2457,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_SpawnItemEx)
 		ACTION_RETURN_BOOL(true);
 	}
 
-	fixedvec2 pos;
+	DVector2 pos;
 
 	if (!(flags & SIXF_ABSOLUTEANGLE))
 	{
@@ -2473,7 +2474,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_SpawnItemEx)
 	{
 		// in relative mode negative y values mean 'left' and positive ones mean 'right'
 		// This is the inverse orientation of the absolute mode!
-		pos = self->Vec2Offset(fixed_t(xofs * c + yofs * s), fixed_t(xofs * s - yofs*c));
+		pos = self->Vec2Offset(xofs * c + yofs * s, xofs * s - yofs*c);
 	}
 
 	if (!(flags & SIXF_ABSOLUTEVELOCITY))
@@ -2484,7 +2485,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_SpawnItemEx)
 		xvel = newxvel;
 	}
 
-	AActor *mo = Spawn(missile, pos.x, pos.y, self->_f_Z() - self->_f_floorclip() + self->GetBobOffset() + zofs, ALLOW_REPLACE);
+	AActor *mo = Spawn(missile, DVector3(pos, self->Z() - self->Floorclip + self->GetBobOffset() + zofs), ALLOW_REPLACE);
 	bool res = InitSpawnedItem(self, mo, flags);
 	if (res)
 	{
@@ -2542,7 +2543,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_ThrowGrenade)
 	AActor *bo;
 
 	bo = Spawn(missile, 
-			self->PosPlusZ(-self->_f_floorclip() + self->GetBobOffset() + zheight + 35*FRACUNIT + (self->player? FLOAT2FIXED(self->player->crouchoffset) : 0)),
+			self->PosPlusZ(-self->Floorclip + self->GetBobOffset() + zheight + 35 + (self->player? self->player->crouchoffset : 0.)),
 			ALLOW_REPLACE);
 	if (bo)
 	{
@@ -2936,9 +2937,9 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_SpawnDebris)
 	
 	for (i = 0; i < GetDefaultByType(debris)->health; i++)
 	{
-		fixed_t xo = ((pr_spawndebris() - 128) << 12);
-		fixed_t yo = ((pr_spawndebris() - 128) << 12);
-		fixed_t zo = (pr_spawndebris()*self->_f_height() / 256 + self->GetBobOffset());
+		double xo = (pr_spawndebris() - 128) / 16.;
+		double yo = (pr_spawndebris() - 128) / 16.;
+		double zo = pr_spawndebris()*self->Height / 256 + self->GetBobOffset();
 		mo = Spawn(debris, self->Vec3Offset(xo, yo, zo), ALLOW_REPLACE);
 		if (mo)
 		{
@@ -3435,7 +3436,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Respawn)
 	PARAM_INT_OPT(flags) { flags = RSF_FOG; }
 
 	bool oktorespawn = false;
-	fixedvec3 pos = self->_f_Pos();
+	DVector3 pos = self->Pos();
 
 	self->flags |= MF_SOLID;
 	self->Height = self->GetDefault()->Height;
@@ -3445,11 +3446,11 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Respawn)
 	if (flags & RSF_TELEFRAG)
 	{
 		// [KS] DIE DIE DIE DIE erm *ahem* =)
-		oktorespawn = P_TeleportMove(self, self->_f_Pos(), true, false);
+		oktorespawn = P_TeleportMove(self, self->Pos(), true, false);
 	}
 	else
 	{
-		oktorespawn = P_CheckPosition(self, self->_f_X(), self->_f_Y(), true);
+		oktorespawn = P_CheckPosition(self, self->Pos(), true);
 	}
 
 	if (oktorespawn)
@@ -3487,7 +3488,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Respawn)
 		if (flags & RSF_FOG)
 		{
 			P_SpawnTeleportFog(self, pos, true, true);
-			P_SpawnTeleportFog(self, self->_f_Pos(), false, true);
+			P_SpawnTeleportFog(self, self->Pos(), false, true);
 		}
 		if (self->CountsAsKill())
 		{
@@ -3842,7 +3843,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_CheckLOF)
 	if (trace.HitType == TRACE_HitActor ||
 		((flags & CLOFF_JUMP_ON_MISS) && !lof_data.BadActor && trace.HitType != TRACE_HitNone))
 	{
-		if (minrange > 0 && trace.Distance < FLOAT2FIXED(minrange))
+		if (minrange > 0 && trace.Distance < minrange)
 		{
 			ACTION_RETURN_STATE(NULL);
 		}
@@ -4907,7 +4908,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Quake)
 // A_QuakeEx
 //
 // Extended version of A_Quake. Takes individual axis into account and can
-// take a flag.
+// take flags.
 //===========================================================================
 
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_QuakeEx)
@@ -4924,7 +4925,9 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_QuakeEx)
 	PARAM_FLOAT_OPT(mulWaveX) { mulWaveX = 1.; }
 	PARAM_FLOAT_OPT(mulWaveY) { mulWaveY = 1.; }
 	PARAM_FLOAT_OPT(mulWaveZ) { mulWaveZ = 1.; }
-	P_StartQuakeXYZ(self, 0, intensityX, intensityY, intensityZ, duration, damrad, tremrad, sound, flags, mulWaveX, mulWaveY, mulWaveZ);
+	PARAM_INT_OPT(falloff) { falloff = 0; }
+	PARAM_INT_OPT(highpoint) { highpoint = 0; }
+	P_StartQuakeXYZ(self, 0, intensityX, intensityY, intensityZ, duration, damrad, tremrad, sound, flags, mulWaveX, mulWaveY, mulWaveZ, falloff, highpoint);
 	return 0;
 }
 
@@ -5094,8 +5097,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_WolfAttack)
 		// Compute position for spawning blood/puff
 		angle = self->target->__f_AngleTo(self);
 		
-		fixedvec3 bloodpos = self->target->_f_Vec3Angle(self->target->_f_radius(), angle, self->target->_f_height() >> 1);
-
+		DVector3 BloodPos = self->target->Vec3Angle(self->target->radius, ANGLE2DBL(angle), self->target->Height/2);
 
 		int damage = flags & WAF_NORANDOM ? maxdamage : (1 + (pr_cabullet() % maxdamage));
 		if (dist >= pointblank)
@@ -5116,7 +5118,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_WolfAttack)
 			if ((0 && dpuff->flags3 & MF3_PUFFONACTORS) || !spawnblood)
 			{
 				spawnblood = false;
-				P_SpawnPuff(self, pufftype, bloodpos, angle, angle, 0);
+				P_SpawnPuff(self, pufftype, BloodPos, ANGLE2DBL(angle), ANGLE2DBL(angle), 0);
 			}
 		}
 		else if (self->target->flags3 & MF3_GHOST)
@@ -5126,7 +5128,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_WolfAttack)
 			int newdam = P_DamageMobj(self->target, self, self, damage, mod, DMG_THRUSTLESS);
 			if (spawnblood)
 			{
-				P_SpawnBlood(bloodpos, angle, newdam > 0 ? newdam : damage, self->target);
+				P_SpawnBlood(BloodPos, ANGLE2DBL(angle), newdam > 0 ? newdam : damage, self->target);
 				P_TraceBleed(newdam > 0 ? newdam : damage, self->target, self);
 			}
 		}
@@ -6629,6 +6631,8 @@ enum CBF
 	CBF_SETONPTR		= 1 << 4,	//Sets the pointer change on the actor doing the checking instead of self.
 	CBF_DROPOFF			= 1 << 5,	//Check for dropoffs.
 	CBF_NOACTORS		= 1 << 6,	//Don't check actors.
+	CBF_ABSOLUTEPOS		= 1 << 7,	//Absolute position for offsets.
+	CBF_ABSOLUTEANGLE	= 1 << 8,	//Absolute angle for offsets.
 };
 
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_CheckBlock)
@@ -6636,7 +6640,11 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_CheckBlock)
 	PARAM_ACTION_PROLOGUE;
 	PARAM_STATE(block)
 	PARAM_INT_OPT(flags) { flags = 0; }
-	PARAM_INT_OPT(ptr) 	{ ptr = AAPTR_DEFAULT; }	
+	PARAM_INT_OPT(ptr)		{ ptr = AAPTR_DEFAULT; }
+	PARAM_FIXED_OPT(xofs)	{ xofs = 0; }
+	PARAM_FIXED_OPT(yofs)	{ yofs = 0; }
+	PARAM_FIXED_OPT(zofs)	{ zofs = 0; }
+	PARAM_ANGLE_OPT(angle)	{ angle = 0; }
 
 	AActor *mobj = COPY_AAPTR(self, ptr);
 
@@ -6646,6 +6654,49 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_CheckBlock)
 		ACTION_RETURN_STATE(NULL);
 	}
 
+#if 0 // this needs some work.
+	if (!(flags & CBF_ABSOLUTEANGLE))
+	{
+		angle += self->angle;
+	}
+
+	angle_t ang = angle >> ANGLETOFINESHIFT;
+	fixedvec3 oldpos = mobj->Pos();
+	fixedvec3 pos;
+
+	if (flags & CBF_ABSOLUTEPOS)
+	{
+		pos.x = xofs;
+		pos.y = yofs;
+		pos.z = zofs;
+	}
+	else
+	{
+		pos = mobj->Vec3Offset(
+			FixedMul(xofs, finecosine[ang]) + FixedMul(yofs, finesine[ang]),
+			FixedMul(xofs, finesine[ang]) - FixedMul(yofs, finecosine[ang]),
+			mobj->Z() + zofs);
+	}
+	
+	// Next, try checking the position based on the sensitivity desired.
+	// If checking for dropoffs, set the z so we can have maximum flexibility.
+	// Otherwise, set origin and set it back after testing.
+
+	bool checker = false;
+	if (flags & CBF_DROPOFF)
+	{
+		mobj->SetZ(pos.z);
+		checker = P_CheckMove(mobj, pos.x, pos.y);
+		mobj->SetZ(oldpos.z);
+	}
+	else
+	{
+		mobj->SetOrigin(pos, true);
+		checker = P_TestMobjLocation(mobj);
+		mobj->SetOrigin(oldpos, true);
+	}
+#endif
+	
 	//Nothing to block it so skip the rest.
 	bool checker = (flags & CBF_DROPOFF) ? P_CheckMove(mobj, mobj->_f_X(), mobj->_f_Y()) : P_TestMobjLocation(mobj);
 	if (checker)

src/thingdef/thingdef_parse.cpp

@@ -1284,7 +1284,7 @@ static void ParseDamageDefinition(FScanner &sc)
 		{
 			sc.MustGetFloat();
 			dtd.DefaultFactor = sc.Float;
-			if (dtd.DefaultFactor == 0) dtd.ReplaceFactor = true; // Multiply by 0 yields 0: FixedMul(damage, FixedMul(factor, 0)) is more wasteful than FixedMul(factor, 0)
+			if (dtd.DefaultFactor == 0) dtd.ReplaceFactor = true;
 		}
 		else if (sc.Compare("REPLACEFACTOR"))
 		{

src/thingdef/thingdef_properties.cpp

@@ -1256,7 +1256,7 @@ DEFINE_PROPERTY(maxstepheight, F, Actor)
 //==========================================================================
 DEFINE_PROPERTY(maxdropoffheight, F, Actor)
 {
-	PROP_FIXED_PARM(i, 0);
+	PROP_DOUBLE_PARM(i, 0);
 	defaults->MaxDropOffHeight = i;
 }
 
@@ -2028,7 +2028,7 @@ DEFINE_CLASS_PROPERTY(upsound, S, Weapon)
 //==========================================================================
 DEFINE_CLASS_PROPERTY(yadjust, F, Weapon)
 {
-	PROP_FIXED_PARM(i, 0);
+	PROP_FLOAT_PARM(i, 0);
 	defaults->YAdjust = i;
 }
 
@@ -2056,7 +2056,7 @@ DEFINE_CLASS_PROPERTY(bobstyle, S, Weapon)
 //==========================================================================
 DEFINE_CLASS_PROPERTY(bobspeed, F, Weapon)
 {
-	PROP_FIXED_PARM(i, 0);
+	PROP_FLOAT_PARM(i, 0);
 	defaults->BobSpeed = i;
 }
 
@@ -2065,7 +2065,7 @@ DEFINE_CLASS_PROPERTY(bobspeed, F, Weapon)
 //==========================================================================
 DEFINE_CLASS_PROPERTY(bobrangex, F, Weapon)
 {
-	PROP_FIXED_PARM(i, 0);
+	PROP_FLOAT_PARM(i, 0);
 	defaults->BobRangeX = i;
 }
 
@@ -2074,7 +2074,7 @@ DEFINE_CLASS_PROPERTY(bobrangex, F, Weapon)
 //==========================================================================
 DEFINE_CLASS_PROPERTY(bobrangey, F, Weapon)
 {
-	PROP_FIXED_PARM(i, 0);
+	PROP_FLOAT_PARM(i, 0);
 	defaults->BobRangeY = i;
 }
 

src/vectors.h

@@ -1031,7 +1031,7 @@ struct TAngle
 		return FLOAT2ANGLE(Degrees);
 	}
 
-	TVector2<vec_t> ToVector(vec_t length) const
+	TVector2<vec_t> ToVector(vec_t length = 1) const
 	{
 		return TVector2<vec_t>(length * Cos(), length * Sin());
 	}
@@ -1041,14 +1041,14 @@ struct TAngle
 		return FLOAT2ANGLE(Degrees) >> 16;
 	}
 
-	double Cos() const
+	vec_t Cos() const
 	{
-		return g_cosdeg(Degrees);
+		return vec_t(g_cosdeg(Degrees));
 	}
 
-	double Sin() const
+	vec_t Sin() const
 	{
-		return g_sindeg(Degrees);
+		return vec_t(g_sindeg(Degrees));
 	}
 
 	double Tan() const
@@ -1354,7 +1354,7 @@ typedef TVector2<float>		FVector2;
 typedef TVector3<float>		FVector3;
 typedef TRotator<float>		FRotator;
 typedef TMatrix3x3<float>	FMatrix3x3;
-//typedef TAngle<float>		FAngle;
+typedef TAngle<float>		FAngle;
 
 typedef TVector2<double>		DVector2;
 typedef TVector3<double>		DVector3;

src/win32/i_system.cpp

@@ -468,7 +468,7 @@ static void CALLBACK TimerTicked(UINT id, UINT msg, DWORD_PTR user, DWORD_PTR dw
 //
 //==========================================================================
 
-fixed_t I_GetTimeFrac(uint32 *ms)
+double I_GetTimeFrac(uint32 *ms)
 {
 	DWORD now = timeGetTime();
 	if (ms != NULL)
@@ -478,12 +478,11 @@ fixed_t I_GetTimeFrac(uint32 *ms)
 	DWORD step = TicNext - TicStart;
 	if (step == 0)
 	{
-		return FRACUNIT;
+		return 1.;
 	}
 	else
 	{
-		fixed_t frac = clamp<fixed_t> ((now - TicStart)*FRACUNIT/step, 0, FRACUNIT);
-		return frac;
+		return clamp<double>(double(now - TicStart) / step, 0, 1);
 	}
 }
 
@@ -727,7 +726,7 @@ void CalculateCPUSpeed()
 		PerfToMillisec = PerfToSec * 1000.0;
 	}
 
-	if (!batchrun) Printf ("CPU _f_speed(): %.0f MHz\n", 0.001 / PerfToMillisec);
+	if (!batchrun) Printf ("CPU speed: %.0f MHz\n", 0.001 / PerfToMillisec);
 }
 
 //==========================================================================

src/win32/i_system.h

@@ -90,7 +90,7 @@ extern int (*I_WaitForTic) (int);
 // tic will never arrive (unless it's the current one).
 extern void (*I_FreezeTime) (bool frozen);
 
-fixed_t I_GetTimeFrac (uint32 *ms);
+double I_GetTimeFrac (uint32 *ms);
 
 // Return a seed value for the RNG.
 unsigned int I_MakeRNGSeed();

src/zstrformat.cpp

@@ -92,12 +92,8 @@
 #include "zstring.h"
 #include "gdtoa.h"
 
-#ifndef _MSC_VER
 #include <stdint.h>
-#else
-typedef unsigned __int64 uint64_t;
-typedef signed __int64 int64_t;
-#endif
+
 
 /*
  * MAXEXPDIG is the maximum number of decimal digits needed to store a

wadsrc/static/actors/actor.txt

@@ -184,7 +184,7 @@ ACTOR Actor native //: Thinker
 	action native A_StopSoundEx(coerce name slot);
 	action native A_SeekerMissile(int threshold, int turnmax, int flags = 0, int chance = 50, int distance = 10);
 	action native state A_Jump(int chance = 256, state label, ...);
-	action native A_CustomMissile(class<Actor> missiletype, float spawnheight = 32, int spawnofs_xy = 0, float angle = 0, int flags = 0, float pitch = 0, int ptr = AAPTR_TARGET);
+	action native A_CustomMissile(class<Actor> missiletype, float spawnheight = 32, float spawnofs_xy = 0, float angle = 0, int flags = 0, float pitch = 0, int ptr = AAPTR_TARGET);
 	action native A_CustomBulletAttack(float/*angle*/ spread_xy, float/*angle*/ spread_z, int numbullets, int damageperbullet, class<Actor> pufftype = "BulletPuff", float range = 0, int flags = 0, int ptr = AAPTR_TARGET);
 	action native A_CustomRailgun(int damage, int spawnofs_xy = 0, color color1 = "", color color2 = "", int flags = 0, int aim = 0, float maxdiff = 0, class<Actor> pufftype = "BulletPuff", float/*angle*/ spread_xy = 0, float/*angle*/ spread_z = 0, float range = 0, int duration = 0, float sparsity = 1.0, float driftspeed = 1.0, class<Actor> spawnclass = "none", float spawnofs_z = 0, int spiraloffset = 270);
 	action native state A_JumpIfHealthLower(int health, state label, int ptr_selector = AAPTR_DEFAULT);
@@ -277,7 +277,7 @@ ACTOR Actor native //: Thinker
 	action native A_SetUserArray(name varname, int index, int value);
 	action native A_SetSpecial(int spec, int arg0 = 0, int arg1 = 0, int arg2 = 0, int arg3 = 0, int arg4 = 0);
 	action native A_Quake(int intensity, int duration, int damrad, int tremrad, sound sfx = "world/quake");
-	action native A_QuakeEx(int intensityX, int intensityY, int intensityZ, int duration, int damrad, int tremrad, sound sfx = "world/quake", int flags = 0, float mulWaveX = 1, float mulWaveY = 1, float mulWaveZ = 1);
+	action native A_QuakeEx(int intensityX, int intensityY, int intensityZ, int duration, int damrad, int tremrad, sound sfx = "world/quake", int flags = 0, float mulWaveX = 1, float mulWaveY = 1, float mulWaveZ = 1, int falloff = 0, int highpoint = 0);
 	action native A_SetTics(int tics);
 	action native A_SetDamageType(name damagetype);
 	action native A_DropItem(class<Actor> item, int dropamount = -1, int chance = 256);
@@ -317,7 +317,7 @@ ACTOR Actor native //: Thinker
 	action native A_SetRipMax(int maximum);
 	action native A_SetChaseThreshold(int threshold, bool def = false, int ptr = AAPTR_DEFAULT);
 	action native state A_CheckProximity(state jump, class<Actor> classname, float distance, int count = 1, int flags = 0, int ptr = AAPTR_DEFAULT);
-	action native state A_CheckBlock(state block, int flags = 0, int ptr = AAPTR_DEFAULT);
+	action native state A_CheckBlock(state block, int flags = 0, int ptr = AAPTR_DEFAULT, float xofs = 0, float yofs = 0, float zofs = 0, float angle = 0);
 	action native state A_CheckSightOrRange(float distance, state label, bool two_dimension = false);
 	action native state A_CheckRange(float distance, state label, bool two_dimension = false);
 	action native bool A_FaceMovementDirection(float offset = 0, float anglelimit = 0, float pitchlimit = 0, int flags = 0, int ptr = AAPTR_DEFAULT);

wadsrc/static/actors/constants.txt

@@ -527,6 +527,8 @@ enum
 	CBF_SETONPTR		= 1 << 4,	//Sets the pointer change on the actor doing the checking instead of self.
 	CBF_DROPOFF			= 1 << 5,	//Check for dropoffs.
 	CBF_NOACTORS		= 1 << 6,	//Don't check actors.
+	CBF_ABSOLUTEPOS		= 1 << 7,	//Absolute position for offsets.
+	CBF_ABSOLUTEANGLE	= 1 << 8,	//Absolute angle for offsets.
 };
 
 enum