- made player_t::crouchoffset and FPlayerStart's coordinates doubles and added a float version of divline_t so that I could complete the conversion of Hexen's game code.

- consolidated the actor based damage factor code which was repeated multiple times in various damage inflicting functions.

src/actor.h

@@ -1272,7 +1272,7 @@ public:
 	int PainThreshold;
 	FNameNoInit DamageType;
 	FNameNoInit DamageTypeReceived;
-	fixed_t DamageFactor;
+	double DamageFactor;
 	fixed_t DamageMultiply;
 
 	FNameNoInit PainType;
@@ -1577,6 +1577,8 @@ public:
 		return MAX(1., Distance2D(dest) / speed);
 	}
 
+	int ApplyDamageFactor(FName damagetype, int damage) const;
+
 };
 
 class FActorIterator

src/d_player.h

@@ -492,7 +492,7 @@ public:
 	DAngle			MaxPitch;
 
 	double crouchfactor;
-	fixed_t crouchoffset;
+	double crouchoffset;
 	fixed_t crouchviewdelta;
 
 	FWeaponSlots weapons;

src/doomdata.h

@@ -428,15 +428,19 @@ enum EMapThingFlags
 // A simplified mapthing for player starts
 struct FPlayerStart
 {
-	fixed_t x, y, z;
+	DVector3 pos;
 	short angle, type;
 
 	FPlayerStart() { }
 	FPlayerStart(const FMapThing *mthing, int pnum)
-	: x(mthing->x), y(mthing->y), z(mthing->z),
+	: pos(FIXED2DBL(mthing->x), FIXED2DBL(mthing->y), FIXED2DBL(mthing->z)),
 	  angle(mthing->angle),
 	  type(pnum)
 	{ }
+
+	fixed_t _f_X() { return FLOAT2FIXED(pos.X); }
+	fixed_t _f_Y() { return FLOAT2FIXED(pos.Y); }
+	fixed_t _f_Z() { return FLOAT2FIXED(pos.Z); }
 };
 // Player spawn spots for deathmatch.
 extern TArray<FPlayerStart> deathmatchstarts;

src/g_game.cpp

@@ -1430,9 +1430,9 @@ bool G_CheckSpot (int playernum, FPlayerStart *mthing)
 
 	if (mthing->type == 0) return false;
 
-	x = mthing->x;
+	x = mthing->_f_X();
-	y = mthing->y;
+	y = mthing->_f_Y();
-	z = mthing->z;
+	z = mthing->_f_Z();
 
 	if (!(level.flags & LEVEL_USEPLAYERSTARTZ))
 	{
@@ -1476,10 +1476,10 @@ bool G_CheckSpot (int playernum, FPlayerStart *mthing)
 //
 
 // [RH] Returns the distance of the closest player to the given mapthing
-static fixed_t PlayersRangeFromSpot (FPlayerStart *spot)
+static double PlayersRangeFromSpot (FPlayerStart *spot)
 {
-	fixed_t closest = INT_MAX;
+	double closest = INT_MAX;
-	fixed_t distance;
+	double distance;
 	int i;
 
 	for (i = 0; i < MAXPLAYERS; i++)
@@ -1487,7 +1487,7 @@ static fixed_t PlayersRangeFromSpot (FPlayerStart *spot)
 		if (!playeringame[i] || !players[i].mo || players[i].health <= 0)
 			continue;
 
-		distance = players[i].mo->AproxDistance (spot->x, spot->y);
+		distance = players[i].mo->Distance2D(spot->pos.X, spot->pos.Y);
 
 		if (distance < closest)
 			closest = distance;
@@ -1499,13 +1499,13 @@ static fixed_t PlayersRangeFromSpot (FPlayerStart *spot)
 // [RH] Select the deathmatch spawn spot farthest from everyone.
 static FPlayerStart *SelectFarthestDeathmatchSpot (size_t selections)
 {
-	fixed_t bestdistance = 0;
+	double bestdistance = 0;
 	FPlayerStart *bestspot = NULL;
 	unsigned int i;
 
 	for (i = 0; i < selections; i++)
 	{
-		fixed_t distance = PlayersRangeFromSpot (&deathmatchstarts[i]);
+		double distance = PlayersRangeFromSpot (&deathmatchstarts[i]);
 
 		if (distance > bestdistance)
 		{

src/g_hexen/a_flechette.cpp

@@ -94,7 +94,7 @@ bool AArtiPoisonBag3::Use (bool pickup)
 {
 	AActor *mo;
 
-	mo = Spawn("ThrowingBomb", Owner->PosPlusZ(-Owner->Floorclip+35. + FIXED2FLOAT(Owner->player? Owner->player->crouchoffset : 0)), ALLOW_REPLACE);
+	mo = Spawn("ThrowingBomb", Owner->PosPlusZ(35. - Owner->Floorclip + (Owner->player? Owner->player->crouchoffset : 0)), ALLOW_REPLACE);
 	if (mo)
 	{
 		mo->Angles.Yaw = Owner->Angles.Yaw + (((pr_poisonbag() & 7) - 4) * (360./256.));
@@ -337,11 +337,7 @@ int APoisonCloud::DoSpecialDamage (AActor *victim, int damage, FName damagetype)
 				victim->Inventory->ModifyDamage(damage, damagetype, damage, true);
 			}
 			// Modify with damage factors
-			damage = FixedMul(damage, victim->DamageFactor);
+			damage = victim->ApplyDamageFactor(damagetype, damage);
-			if (damage > 0)
-			{
-				damage = DamageTypeDefinition::ApplyMobjDamageFactor(damage, damagetype, victim->GetClass()->DamageFactors);
-			}
 			if (damage > 0)
 			{
 				P_PoisonDamage (victim->player, this,

src/g_hexen/a_heresiarch.cpp

@@ -171,26 +171,6 @@ IMPLEMENT_CLASS (ASorcBall3)
 
 // Sorcerer spell 1 (The burning, bouncing head thing) ----------------------
 
-/*
-class ASorcFX1 : public AActor
-{
-	DECLARE_CLASS (ASorcFX1, AActor)
-public:
-	bool FloorBounceMissile (secplane_t &plane)
-	{
-		fixed_t orgvelz = vel.z;
-
-		if (!Super::FloorBounceMissile (plane))
-		{
-			vel.z = -orgvelz;		// no energy absorbed
-			return false;
-		}
-		return true;
-	}
-};
-IMPLEMENT_CLASS (ASorcFX1)
-*/
-
 //============================================================================
 //
 // SorcBall::DoFireSpell

src/g_hexen/a_magestaff.cpp

@@ -144,10 +144,10 @@ DEFINE_ACTION_FUNCTION(AActor, A_MStaffAttack)
 	P_AimLineAttack (self, angle, PLAYERMISSILERANGE, &t, 32.);
 	if (t.linetarget == NULL)
 	{
-		BlockCheckLine.x = self->_f_X();
+		BlockCheckLine.x = self->X();
-		BlockCheckLine.y = self->_f_Y();
+		BlockCheckLine.y = self->Y();
-		BlockCheckLine.dx = FLOAT2FIXED(-angle.Sin());
+		BlockCheckLine.dx = -angle.Sin();
-		BlockCheckLine.dy = FLOAT2FIXED(-angle.Cos());
+		BlockCheckLine.dy = -angle.Cos();
 		t.linetarget = P_BlockmapSearch (self, 10, FrontBlockCheck);
 	}
 	MStaffSpawn (self, angle, t.linetarget);
@@ -213,7 +213,7 @@ static AActor *FrontBlockCheck (AActor *mo, int index, void *)
 	{
 		if (link->Me != mo)
 		{
-			if (P_PointOnDivlineSide (link->Me->_f_X(), link->Me->_f_Y(), &BlockCheckLine) == 0 &&
+			if (P_PointOnDivlineSidePrecise(link->Me->X(), link->Me->Y(), &BlockCheckLine) == 0 &&
 				mo->IsOkayToAttack (link->Me))
 			{
 				return link->Me;

src/g_hexen/a_teleportother.cpp

@@ -164,12 +164,12 @@ int ATelOtherFX1::DoSpecialDamage (AActor *target, int damage, FName damagetype)
 
 void P_TeleportToPlayerStarts (AActor *victim)
 {
-	fixed_t destX,destY;
+	DVector3 dest;
 
 	FPlayerStart *start = G_PickPlayerStart(0, PPS_FORCERANDOM | PPS_NOBLOCKINGCHECK);
-	destX = start->x;
+	dest = start->pos;
-	destY = start->y;
+	dest.Z = ONFLOORZ;
-	P_Teleport (victim, destX, destY, ONFLOORZ, (double)start->angle, TELF_SOURCEFOG | TELF_DESTFOG);
+	P_Teleport (victim, dest, (double)start->angle, TELF_SOURCEFOG | TELF_DESTFOG);
 }
 
 //===========================================================================
@@ -181,15 +181,15 @@ void P_TeleportToPlayerStarts (AActor *victim)
 void P_TeleportToDeathmatchStarts (AActor *victim)
 {
 	unsigned int i, selections;
-	fixed_t destX,destY;
+	DVector3 dest;
 
 	selections = deathmatchstarts.Size ();
 	if (selections > 0)
 	{
 		i = pr_teledm() % selections;
-		destX = deathmatchstarts[i].x;
+		dest = deathmatchstarts[i].pos;
-		destY = deathmatchstarts[i].y;
+		dest.Z = ONFLOORZ;
-		P_Teleport (victim, destX, destY, ONFLOORZ, (double)deathmatchstarts[i].angle, TELF_SOURCEFOG | TELF_DESTFOG);
+		P_Teleport (victim, dest, (double)deathmatchstarts[i].angle, TELF_SOURCEFOG | TELF_DESTFOG);
 	}
 	else
 	{

src/g_level.h

@@ -547,7 +547,6 @@ enum ESkillProperty
 {
 	SKILLP_AmmoFactor,
 	SKILLP_DropAmmoFactor,
-	SKILLP_DamageFactor,
 	SKILLP_FastMonsters,
 	SKILLP_Respawn,
 	SKILLP_RespawnLimit,
@@ -566,7 +565,12 @@ enum ESkillProperty
 	SKILLP_SlowMonsters,
 	SKILLP_Infight,
 };
+enum EFSkillProperty	// floating point properties
+{
+	SKILLP_DamageFactor,
+};
 int G_SkillProperty(ESkillProperty prop);
+double G_SkillProperty(EFSkillProperty prop);
 const char * G_SkillName();
 
 typedef TMap<FName, FString> SkillMenuNames;
@@ -577,7 +581,7 @@ struct FSkillInfo
 {
 	FName Name;
 	fixed_t AmmoFactor, DoubleAmmoFactor, DropAmmoFactor;
-	fixed_t DamageFactor;
+	double DamageFactor;
 	bool FastMonsters;
 	bool SlowMonsters;
 	bool DisableCheats;

src/g_raven/a_artitele.cpp

@@ -27,26 +27,24 @@ IMPLEMENT_CLASS (AArtiTeleport)
 
 bool AArtiTeleport::Use (bool pickup)
 {
-	fixed_t destX;
+	DVector3 dest;
-	fixed_t destY;
 	int destAngle;
 
 	if (deathmatch)
 	{
 		unsigned int selections = deathmatchstarts.Size ();
 		unsigned int i = pr_tele() % selections;
-		destX = deathmatchstarts[i].x;
+		dest = deathmatchstarts[i].pos;
-		destY = deathmatchstarts[i].y;
 		destAngle = deathmatchstarts[i].angle;
 	}
 	else
 	{
 		FPlayerStart *start = G_PickPlayerStart(int(Owner->player - players));
-		destX = start->x;
+		dest = start->pos;
-		destY = start->y;
 		destAngle = start->angle;
 	}
-	P_Teleport (Owner, destX, destY, ONFLOORZ, (double)destAngle, TELF_SOURCEFOG | TELF_DESTFOG);
+	dest.Z = ONFLOORZ;
+	P_Teleport (Owner, dest, (double)destAngle, TELF_SOURCEFOG | TELF_DESTFOG);
 	bool canlaugh = true;
  	if (Owner->player->morphTics && (Owner->player->MorphStyle & MORPH_UNDOBYCHAOSDEVICE))
  	{ // Teleporting away will undo any morph effects (pig)

src/g_skill.cpp

@@ -62,7 +62,7 @@ void FMapInfoParser::ParseSkill ()
 	skill.AmmoFactor = FRACUNIT;
 	skill.DoubleAmmoFactor = 2*FRACUNIT;
 	skill.DropAmmoFactor = -1;
-	skill.DamageFactor = FRACUNIT;
+	skill.DamageFactor = 1.;
 	skill.FastMonsters = false;
 	skill.SlowMonsters = false;
 	skill.DisableCheats = false;
@@ -115,7 +115,7 @@ void FMapInfoParser::ParseSkill ()
 		{
 			ParseAssign();
 			sc.MustGetFloat ();
-			skill.DamageFactor = FLOAT2FIXED(sc.Float);
+			skill.DamageFactor = sc.Float;
 		}
 		else if (sc.Compare ("fastmonsters"))
 		{
@@ -351,9 +351,6 @@ int G_SkillProperty(ESkillProperty prop)
 		case SKILLP_DropAmmoFactor:
 			return AllSkills[gameskill].DropAmmoFactor;
 
-		case SKILLP_DamageFactor:
-			return AllSkills[gameskill].DamageFactor;
-
 		case SKILLP_FastMonsters:
 			return AllSkills[gameskill].FastMonsters  || (dmflags & DF_FAST_MONSTERS);
 
@@ -416,6 +413,28 @@ int G_SkillProperty(ESkillProperty prop)
 	return 0;
 }
 
+//==========================================================================
+//
+//
+//
+//==========================================================================
+
+double G_SkillProperty(EFSkillProperty prop)
+{
+	if (AllSkills.Size() > 0)
+	{
+		switch (prop)
+		{
+		case SKILLP_DamageFactor:
+			return AllSkills[gameskill].DamageFactor;
+			break;
+		}
+	}
+	return 0;
+}
+
+
+
 //==========================================================================
 //
 //

src/m_cheat.cpp

@@ -1071,8 +1071,8 @@ public:
 		Pawn->flags |= MF_SHOOTABLE;
 		Pawn->flags2 &= ~MF2_INVULNERABLE;
 		// Store the player's current damage factor, to restore it later.
-		fixed_t plyrdmgfact = Pawn->DamageFactor;
+		double plyrdmgfact = Pawn->DamageFactor;
-		Pawn->DamageFactor = 65536;
+		Pawn->DamageFactor = 1.;
 		P_DamageMobj (Pawn, Pawn, Pawn, TELEFRAG_DAMAGE, NAME_Suicide);
 		Pawn->DamageFactor = plyrdmgfact;
 		if (Pawn->health <= 0)

src/p_acs.cpp

@@ -3954,7 +3954,7 @@ void DLevelScript::DoSetActorProperty (AActor *actor, int property, int value)
 		break;
 
 	case APROP_DamageFactor:
-		actor->DamageFactor = value;
+		actor->DamageFactor = ACSToDouble(value);
 		break;
 
 	case APROP_DamageMultiplier:
@@ -4037,7 +4037,7 @@ int DLevelScript::GetActorProperty (int tid, int property)
 	case APROP_Health:		return actor->health;
 	case APROP_Speed:		return DoubleToACS(actor->Speed);
 	case APROP_Damage:		return actor->GetMissileDamage(0,1);
-	case APROP_DamageFactor:return actor->DamageFactor;
+	case APROP_DamageFactor:return DoubleToACS(actor->DamageFactor);
 	case APROP_DamageMultiplier: return actor->DamageMultiply;
 	case APROP_Alpha:		return DoubleToACS(actor->Alpha);
 	case APROP_RenderStyle:	for (int style = STYLE_None; style < STYLE_Count; ++style)

src/p_interaction.cpp

@@ -1046,7 +1046,7 @@ int P_DamageMobj (AActor *target, AActor *inflictor, AActor *source, int damage,
 			if (player && damage > 1)
 			{
 				// Take half damage in trainer mode
-				damage = FixedMul(damage, G_SkillProperty(SKILLP_DamageFactor));
+				damage = int(damage * G_SkillProperty(SKILLP_DamageFactor));
 			}
 			// Special damage types
 			if (inflictor)
@@ -1091,11 +1091,7 @@ int P_DamageMobj (AActor *target, AActor *inflictor, AActor *source, int damage,
 			}
 			if (damage > 0 && !(flags & DMG_NO_FACTOR))
 			{
-				damage = FixedMul(damage, target->DamageFactor);
+				damage = target->ApplyDamageFactor(mod, damage);
-				if (damage > 0)
-				{
-					damage = DamageTypeDefinition::ApplyMobjDamageFactor(damage, mod, target->GetClass()->DamageFactors);
-				}
 			}
 
 			if (damage >= 0)
@@ -1721,18 +1717,15 @@ void P_PoisonDamage (player_t *player, AActor *source, int damage,
 		return;
 	}
 	// Take half damage in trainer mode
-	damage = FixedMul(damage, G_SkillProperty(SKILLP_DamageFactor));
+	damage = int(damage * G_SkillProperty(SKILLP_DamageFactor));
 	// Handle passive damage modifiers (e.g. PowerProtection)
 	if (target->Inventory != NULL)
 	{
 		target->Inventory->ModifyDamage(damage, player->poisontype, damage, true);
 	}
 	// Modify with damage factors
-	damage = FixedMul(damage, target->DamageFactor);
+	damage = target->ApplyDamageFactor(player->poisontype, damage);
-	if (damage > 0)
+
-	{
-		damage = DamageTypeDefinition::ApplyMobjDamageFactor(damage, player->poisontype, target->GetClass()->DamageFactors);
-	}
 	if (damage <= 0)
 	{ // Damage was reduced to 0, so don't bother further.
 		return;

src/p_map.cpp

@@ -2281,8 +2281,8 @@ bool P_TryMove(AActor *thing, fixed_t x, fixed_t y,
 			side = P_PointOnLineSide(spec.refpos.x, spec.refpos.y, ld);
 			if (oldside == 0 && side == 1)
 			{
-				divline_t dl2 = { ld->v1->x, ld->v1->y, ld->dx, ld->dy };
+				fdivline_t dl2 = { ld->v1->x, ld->v1->y, ld->dx, ld->dy };
-				divline_t dl1 = { spec.oldrefpos.x, spec.oldrefpos.y, spec.refpos.x - spec.oldrefpos.x, spec.refpos.y - spec.oldrefpos.y };
+				fdivline_t dl1 = { spec.oldrefpos.x, spec.oldrefpos.y, spec.refpos.x - spec.oldrefpos.x, spec.refpos.y - spec.oldrefpos.y };
 				fixed_t frac = P_InterceptVector(&dl1, &dl2);
 				if (frac < bestfrac)
 				{
@@ -2337,7 +2337,7 @@ bool P_TryMove(AActor *thing, fixed_t x, fixed_t y,
 			// so that the renderer can properly calculate an interpolated position along the movement path.
 			if (thing == players[consoleplayer].camera)
 			{
-				divline_t dl1 = { besthit.oldrefpos.x,besthit. oldrefpos.y, besthit.refpos.x - besthit.oldrefpos.x, besthit.refpos.y - besthit.oldrefpos.y };
+				fdivline_t dl1 = { besthit.oldrefpos.x,besthit. oldrefpos.y, besthit.refpos.x - besthit.oldrefpos.x, besthit.refpos.y - besthit.oldrefpos.y };
 				fixedvec3a hit = { dl1.x + FixedMul(dl1.dx, bestfrac), dl1.y + FixedMul(dl1.dy, bestfrac), 0, 0. };
 
 				R_AddInterpolationPoint(hit);
@@ -2749,7 +2749,7 @@ void FSlide::HitSlideLine(line_t* ld)
 		}
 		else
 		{
-			divline_t dll, dlv;
+			fdivline_t dll, dlv;
 			fixed_t inter1, inter2, inter3;
 
 			P_MakeDivline(ld, &dll);
@@ -3554,7 +3554,7 @@ struct aim_t
 	//
 	//============================================================================
 
-	bool AimTraverse3DFloors(const divline_t &trace, intercept_t * in, int frontflag, int *planestocheck)
+	bool AimTraverse3DFloors(const fdivline_t &trace, intercept_t * in, int frontflag, int *planestocheck)
 	{
 		sector_t * nextsector;
 		secplane_t * nexttopplane, *nextbottomplane;

src/p_maputl.cpp

@@ -73,7 +73,7 @@ fixed_t P_AproxDistance (fixed_t dx, fixed_t dy)
 //
 //==========================================================================
 
-fixed_t P_InterceptVector (const divline_t *v2, const divline_t *v1)
+fixed_t P_InterceptVector (const fdivline_t *v2, const fdivline_t *v1)
 {
 #if 0	// [RH] Use 64 bit ints, so long divlines don't overflow
 
@@ -387,7 +387,7 @@ bool AActor::FixMapthingPos()
 				continue;
 
 			// Get the exact distance to the line
-			divline_t dll, dlv;
+			fdivline_t dll, dlv;
 			fixed_t linelen = (fixed_t)g_sqrt((double)ldef->dx*ldef->dx + (double)ldef->dy*ldef->dy);
 
 			P_MakeDivline(ldef, &dll);
@@ -1197,7 +1197,7 @@ void FPathTraverse::AddLineIntercepts(int bx, int by)
 		int 				s1;
 		int 				s2;
 		fixed_t 			frac;
-		divline_t			dl;
+		fdivline_t			dl;
 
 		// avoid precision problems with two routines
 		if ( trace.dx > FRACUNIT*16
@@ -1247,7 +1247,7 @@ void FPathTraverse::AddThingIntercepts (int bx, int by, FBlockThingsIterator &it
 	while ((thing = it.Next(compatible)))
 	{
 		int numfronts = 0;
-		divline_t line;
+		fdivline_t line;
 		int i;
 
 
@@ -1358,7 +1358,7 @@ void FPathTraverse::AddThingIntercepts (int bx, int by, FBlockThingsIterator &it
 			// Old code for compatibility purposes
 			fixed_t 		x1, y1, x2, y2;
 			int 			s1, s2;
-			divline_t		dl;
+			fdivline_t		dl;
 			fixed_t 		frac;
 				
 			bool tracepositive = (trace.dx ^ trace.dy)>0;
@@ -1940,7 +1940,7 @@ int P_VanillaPointOnLineSide(fixed_t x, fixed_t y, const line_t* line)
 //
 //===========================================================================
 
-int P_VanillaPointOnDivlineSide(fixed_t x, fixed_t y, const divline_t* line)
+int P_VanillaPointOnDivlineSide(fixed_t x, fixed_t y, const fdivline_t* line)
 {
 	fixed_t	dx;
 	fixed_t	dy;

src/p_maputl.h

@@ -7,7 +7,7 @@
 
 extern int validcount;
 
-struct divline_t
+struct fdivline_t
 {
 	fixed_t 	x;
 	fixed_t 	y;
@@ -15,12 +15,12 @@ struct divline_t
 	fixed_t 	dy;
 };
 
-struct fdivline_t
+struct divline_t
 {
-	fixed_t 	x;
+	double 	x;
-	fixed_t 	y;
+	double 	y;
-	fixed_t 	dx;
+	double 	dx;
-	fixed_t 	dy;
+	double 	dy;
 };
 
 struct intercept_t
@@ -81,20 +81,25 @@ inline int P_PointOnLineSidePrecise(const DVector3 &pt, const line_t *line)
 //
 //==========================================================================
 
-inline int P_PointOnDivlineSide (fixed_t x, fixed_t y, const divline_t *line)
+inline int P_PointOnDivlineSide (fixed_t x, fixed_t y, const fdivline_t *line)
 {
-	extern int P_VanillaPointOnDivlineSide(fixed_t x, fixed_t y, const divline_t* line);
+	extern int P_VanillaPointOnDivlineSide(fixed_t x, fixed_t y, const fdivline_t* line);
 
 	return (i_compatflags2 & COMPATF2_POINTONLINE)
 		? P_VanillaPointOnDivlineSide(x, y, line)
 		: (DMulScale32 (y-line->y, line->dx, line->x-x, line->dy) > 0);
 }
 
-inline int P_PointOnDivlineSidePrecise (fixed_t x, fixed_t y, const divline_t *line)
+inline int P_PointOnDivlineSidePrecise (fixed_t x, fixed_t y, const fdivline_t *line)
 {
 	return DMulScale32 (y-line->y, line->dx, line->x-x, line->dy) > 0;
 }
 
+inline int P_PointOnDivlineSidePrecise(double x, double y, const divline_t *line)
+{
+	return (y - line->y) * line->dx + (line->x - x) * line->dy > 0;
+}
+
 
 //==========================================================================
 //
@@ -102,7 +107,7 @@ inline int P_PointOnDivlineSidePrecise (fixed_t x, fixed_t y, const divline_t *l
 //
 //==========================================================================
 
-inline void P_MakeDivline (const line_t *li, divline_t *dl)
+inline void P_MakeDivline (const line_t *li, fdivline_t *dl)
 {
 	dl->x = li->v1->x;
 	dl->y = li->v1->y;
@@ -366,7 +371,7 @@ class FPathTraverse
 protected:
 	static TArray<intercept_t> intercepts;
 
-	divline_t trace;
+	fdivline_t trace;
 	fixed_t startfrac;
 	unsigned int intercept_index;
 	unsigned int intercept_count;
@@ -386,7 +391,7 @@ public:
 	void init(fixed_t x1, fixed_t y1, fixed_t x2, fixed_t y2, int flags, fixed_t startfrac = 0);
 	int PortalRelocate(intercept_t *in, int flags, fixedvec3 *optpos = NULL);
 	virtual ~FPathTraverse();
-	const divline_t &Trace() const { return trace; }
+	const fdivline_t &Trace() const { return trace; }
 
 	inline fixedvec2 InterceptPoint(const intercept_t *in)
 	{
@@ -427,7 +432,7 @@ typedef bool(*traverser_t) (intercept_t *in);
 fixed_t P_AproxDistance (fixed_t dx, fixed_t dy);
 
 
-fixed_t P_InterceptVector (const divline_t *v2, const divline_t *v1);
+fixed_t P_InterceptVector (const fdivline_t *v2, const fdivline_t *v1);
 
 #define PT_ADDLINES 	1
 #define PT_ADDTHINGS	2

src/p_mobj.cpp

@@ -1779,7 +1779,7 @@ fixed_t P_XYMovement (AActor *mo, fixed_t scrollx, fixed_t scrolly)
 	fixed_t oldz = mo->_f_Z();
 
 	double maxmove = (mo->waterlevel < 1) || (mo->flags & MF_MISSILE) || 
-					  (mo->player && mo->player->crouchoffset<-10*FRACUNIT) ? MAXMOVE : MAXMOVE/4;
+					  (mo->player && mo->player->crouchoffset<-10) ? MAXMOVE : MAXMOVE/4;
 
 	if (mo->flags2 & MF2_WINDTHRUST && mo->waterlevel < 2 && !(mo->flags & MF_NOCLIP))
 	{
@@ -4634,8 +4634,8 @@ APlayerPawn *P_SpawnPlayer (FPlayerStart *mthing, int playernum, int flags)
 	}
 	else
 	{
-		spawn_x = mthing->x;
+		spawn_x = mthing->_f_X();
-		spawn_y = mthing->y;
+		spawn_y = mthing->_f_Y();
 
 		// Allow full angular precision
 		SpawnAngle = (double)mthing->angle;
@@ -4658,9 +4658,9 @@ APlayerPawn *P_SpawnPlayer (FPlayerStart *mthing, int playernum, int flags)
 	if (level.flags & LEVEL_USEPLAYERSTARTZ)
 	{
 		if (spawn_z == ONFLOORZ)
-			mobj->_f_AddZ(mthing->z);
+			mobj->AddZ(mthing->pos.Z);
 		else if (spawn_z == ONCEILINGZ)
-			mobj->_f_AddZ(-mthing->z);
+			mobj->AddZ(-mthing->pos.Z);
 		P_FindFloorCeiling(mobj, FFCF_SAMESECTOR | FFCF_ONLY3DFLOORS | FFCF_3DRESTRICT);
 	}
 
@@ -6631,6 +6631,17 @@ void AActor::ClearCounters()
 }
 
 
+int AActor::ApplyDamageFactor(FName damagetype, int damage) const
+{
+	damage = int(damage * DamageFactor);
+	if (damage > 0)
+	{
+		damage = DamageTypeDefinition::ApplyMobjDamageFactor(damage, damagetype, GetClass()->DamageFactors);
+	}
+	return damage;
+}
+
+
 //----------------------------------------------------------------------------
 //
 // DropItem handling

src/p_sight.cpp

@@ -95,7 +95,7 @@ class SightCheck
 	sector_t * lastsector;			// last sector being entered by trace
 	fixed_t topslope, bottomslope;	// slopes to top and bottom of target
 	int Flags;
-	divline_t trace;
+	fdivline_t trace;
 	int portaldir;
 	int portalgroup;
 	bool portalfound;
@@ -372,7 +372,7 @@ bool SightCheck::PTR_SightTraverse (intercept_t *in)
 
 bool SightCheck::P_SightCheckLine (line_t *ld)
 {
-	divline_t dl;
+	fdivline_t dl;
 
 	if (ld->validcount == validcount)
 	{
@@ -508,7 +508,7 @@ bool SightCheck::P_SightTraverseIntercepts ()
 	fixed_t dist;
 	intercept_t *scan, *in;
 	unsigned scanpos;
-	divline_t dl;
+	fdivline_t dl;
 
 	count = intercepts.Size ();
 //

src/p_switch.cpp

@@ -135,7 +135,7 @@ bool P_CheckSwitchRange(AActor *user, line_t *line, int sideno, fixedvec3 *optpo
 		return true;
 
 	// calculate the point where the user would touch the wall.
-	divline_t dll, dlu;
+	fdivline_t dll, dlu;
 	fixed_t inter, checkx, checky;
 
 	P_MakeDivline (line, &dll);

src/p_user.cpp

@@ -2430,7 +2430,7 @@ void P_PlayerThink (player_t *player)
 		player->Uncrouch();
 	}
 
-	player->crouchoffset = -fixed_t(player->mo->ViewHeight * (1 - player->crouchfactor));
+	player->crouchoffset = -(FIXED2DBL(player->mo->ViewHeight) * (1 - player->crouchfactor));
 
 	// MUSINFO stuff
 	if (player->MUSINFOtics >= 0 && player->MUSINFOactor != NULL)

src/portal.cpp

@@ -162,7 +162,7 @@ void FLinePortalTraverse::AddLineIntercepts(int bx, int by)
 	{
 		line_t *ld = block.portallines[i];
 		fixed_t frac;
-		divline_t dl;
+		fdivline_t dl;
 
 		if (ld->validcount == validcount) continue;	// already processed
 

src/thingdef/thingdef_codeptr.cpp

@@ -1218,7 +1218,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_CustomMissile)
 			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? self->player->crouchoffset : 0);
+			fixed_t z = spawnheight + self->GetBobOffset() - 32*FRACUNIT + (self->player? FLOAT2FIXED(self->player->crouchoffset) : 0);
 
 			fixedvec3 pos = self->_f_Pos();
 			switch (aimmode)
@@ -2544,7 +2544,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_ThrowGrenade)
 	AActor *bo;
 
 	bo = Spawn(missile, 
-			self->PosPlusZ(-self->_f_floorclip() + self->GetBobOffset() + zheight + 35*FRACUNIT + (self->player? self->player->crouchoffset : 0)),
+			self->PosPlusZ(-self->_f_floorclip() + self->GetBobOffset() + zheight + 35*FRACUNIT + (self->player? FLOAT2FIXED(self->player->crouchoffset) : 0)),
 			ALLOW_REPLACE);
 	if (bo)
 	{

src/thingdef/thingdef_properties.cpp

@@ -1217,7 +1217,7 @@ DEFINE_PROPERTY(deathtype, S, Actor)
 DEFINE_PROPERTY(damagefactor, ZF, Actor)
 {
 	PROP_STRING_PARM(str, 0);
-	PROP_FIXED_PARM(id, 1);
+	PROP_DOUBLE_PARM(id, 1);
 
 	if (str == NULL)
 	{
@@ -1229,7 +1229,7 @@ DEFINE_PROPERTY(damagefactor, ZF, Actor)
 		if (!stricmp(str, "Normal")) dmgType = NAME_None;
 		else dmgType=str;
 
-		info->SetDamageFactor(dmgType, id);
+		info->SetDamageFactor(dmgType, FLOAT2FIXED(id));
 	}
 }