- Fixed: PIT_FindFloorCeiling required tmx and tmy to be set but

P_FindFloorCeiling never did that.
- Merged Check_Sides and PIT_CrossLine into A_PainShootSkull.
- Replaced P_BlockLinesIterator with FBlockLinesIterator in all places it was
  used. This also allowed to remove all the global variable saving in
  P_CreateSecNodeList.
- Added a new FBlockLinesIterator class that doesn't need a callback
  function because debugging the previous bug proved to be a bit annoying
  because it involved a P_BlockLinesIterator loop.
- Fixed: The MBF code to move monsters away from dropoffs did not work as 
  intended due to some random decisions in P_DoNewChaseDir. When in the
  avoiding dropoff mode these are ignored now. This should cure the problem
  that monsters hanging over a dropoff tended to drop down. 

SVN r887 (trunk)

docs/rh-log.txt

@@ -1,4 +1,17 @@
 April 6, 2008 (Changes by Graf Zahl)
+- Fixed: PIT_FindFloorCeiling required tmx and tmy to be set but 
+  P_FindFloorCeiling never did that.
+- Merged Check_Sides and PIT_CrossLine into A_PainShootSkull.
+- Replaced P_BlockLinesIterator with FBlockLinesIterator in all places it was
+  used. This also allowed to remove all the global variable saving in
+  P_CreateSecNodeList.
+- Added a new FBlockLinesIterator class that doesn't need a callback
+  function because debugging the previous bug proved to be a bit annoying
+  because it involved a P_BlockLinesIterator loop.
+- Fixed: The MBF code to move monsters away from dropoffs did not work as 
+  intended due to some random decisions in P_DoNewChaseDir. When in the
+  avoiding dropoff mode these are ignored now. This should cure the problem
+  that monsters hanging over a dropoff tended to drop down.
 - Added a NOTIMEFREEZE flag that excludes actors from being affected by
   the time freezer powerup.
 - Changed: Empty pickup messages are no longer printed.

src/doomtype.h

@@ -124,6 +124,17 @@ typedef struct _GUID
 } GUID;
 #endif
 
+
+// Bounding box coordinate storage.
+enum
+{
+	BOXTOP,
+	BOXBOTTOM,
+	BOXLEFT,
+	BOXRIGHT
+};		// bbox coordinates
+
+
 //
 // Fixed point, 32bit as 16.16.
 //

src/g_doom/a_painelemental.cpp

@@ -4,6 +4,8 @@
 #include "p_local.h"
 #include "a_doomglobal.h"
 #include "a_action.h"
+#include "templates.h"
+#include "m_bbox.h"
 #include "thingdef/thingdef.h"
 
 void A_PainAttack (AActor *);
@@ -23,6 +25,7 @@ static const PClass *GetSpawnType()
 	return spawntype;
 }
 
+
 //
 // A_PainShootSkull
 // Spawn a lost soul and launch it at the target
@@ -80,9 +83,24 @@ void A_PainShootSkull (AActor *self, angle_t angle, const PClass *spawntype)
 	// wall or an impassible line, or a "monsters can't cross" line.//   |
 	// If it is, then we don't allow the spawn.						//   V
 
-	if (Check_Sides (self, x, y))
+	FBoundingBox box(MIN(self->x, x), MIN(self->y, y), MAX(self->x, x), MAX(self->y, y));
+	FBlockLinesIterator it(box);
+	line_t *ld;
+
+	while ((ld = it.Next()))
 	{
-		return;
+		if (!(ld->flags & ML_TWOSIDED) ||
+			(ld->flags & (ML_BLOCKING|ML_BLOCKMONSTERS|ML_BLOCKEVERYTHING)))
+		{
+			if (!(box.Left()   > ld->bbox[BOXRIGHT]  ||
+				  box.Right()  < ld->bbox[BOXLEFT]   ||
+				  box.Top()    < ld->bbox[BOXBOTTOM] ||
+				  box.Bottom() > ld->bbox[BOXTOP]))
+			{
+				if (P_PointOnLineSide(self->x,self->y,ld) != P_PointOnLineSide(x,y,ld))
+					return;  // line blocks trajectory				//   ^
+			}
+		}
 	}
 
 	other = Spawn (spawntype, x, y, z, ALLOW_REPLACE);

src/g_heretic/a_hereticartifacts.cpp

@@ -41,6 +41,7 @@ bool AArtiTomeOfPower::Use (bool pickup)
 		else
 		{ // Succeeded
 			Owner->player->morphTics = 0;
+			Owner->player->MorphedPlayerClass = 0;
 			S_Sound (Owner, CHAN_VOICE, "*evillaugh", 1, ATTN_IDLE);
 		}
 		return true;

src/g_shared/a_morph.cpp

@@ -199,6 +199,7 @@ bool P_UndoPlayerMorph (player_t *player, bool force)
 	mo->flags3 = (mo->flags3 & ~MF3_GHOST) | (pmo->flags3 & MF3_GHOST);
 
 	player->morphTics = 0;
+	player->MorphedPlayerClass = 0;
 	player->viewheight = mo->ViewHeight;
 	AInventory *level2 = mo->FindInventory (RUNTIME_CLASS(APowerWeaponLevel2));
 	if (level2 != NULL)

src/m_bbox.cpp

@@ -25,17 +25,7 @@
 //-----------------------------------------------------------------------------
 
 #include "m_bbox.h"
-
+#include "p_local.h"
-FBoundingBox::FBoundingBox ()
-{
-	ClearBox ();
-}
-
-void FBoundingBox::ClearBox ()
-{
-	m_Box[BOXTOP] = m_Box[BOXRIGHT] = FIXED_MIN;
-	m_Box[BOXBOTTOM] = m_Box[BOXLEFT] = FIXED_MAX;
-}
 
 void FBoundingBox::AddToBox (fixed_t x, fixed_t y)
 {
@@ -50,6 +40,11 @@ void FBoundingBox::AddToBox (fixed_t x, fixed_t y)
 		m_Box[BOXTOP] = y;
 }
 
+int FBoundingBox::BoxOnLineSide (const line_t *ld) const
+{
+	return P_BoxOnLineSide(m_Box, ld);
+}
+
 
 
 

src/m_bbox.h

@@ -25,29 +25,46 @@
 #include "doomtype.h"
 #include "m_fixed.h"
 
-
+struct line_t;
-// Bounding box coordinate storage.
-enum
-{
-	BOXTOP,
-	BOXBOTTOM,
-	BOXLEFT,
-	BOXRIGHT
-};		// bbox coordinates
-
 
 class FBoundingBox
 {
 public:
-	FBoundingBox();
+	FBoundingBox()
+	{
+		ClearBox();
+	}
+
+	FBoundingBox(fixed_t left, fixed_t bottom, fixed_t right, fixed_t top)
+	{
+		m_Box[BOXTOP] = top;
+		m_Box[BOXLEFT] = left;
+		m_Box[BOXRIGHT] = right;
+		m_Box[BOXBOTTOM] = bottom;
+	}
+
+	FBoundingBox(fixed_t x, fixed_t y, fixed_t radius)
+	{
+		m_Box[BOXTOP] = y + radius;
+		m_Box[BOXLEFT] = x - radius;
+		m_Box[BOXRIGHT] = x + radius;
+		m_Box[BOXBOTTOM] = y - radius;
+	}
+
+	void ClearBox ()
+	{
+		m_Box[BOXTOP] = m_Box[BOXRIGHT] = FIXED_MIN;
+		m_Box[BOXBOTTOM] = m_Box[BOXLEFT] = FIXED_MAX;
+	}
 
-	void ClearBox ();
 	void AddToBox (fixed_t x, fixed_t y);
 
-	inline fixed_t Top () { return m_Box[BOXTOP]; }
+	inline fixed_t Top () const { return m_Box[BOXTOP]; }
-	inline fixed_t Bottom () { return m_Box[BOXBOTTOM]; }
+	inline fixed_t Bottom () const { return m_Box[BOXBOTTOM]; }
-	inline fixed_t Left () { return m_Box[BOXLEFT]; }
+	inline fixed_t Left () const { return m_Box[BOXLEFT]; }
-	inline fixed_t Right () { return m_Box[BOXRIGHT]; }
+	inline fixed_t Right () const { return m_Box[BOXRIGHT]; }
+
+	int BoxOnLineSide (const line_t *ld) const;
 
 protected:
 	fixed_t m_Box[4];

src/p_enemy.cpp

@@ -32,6 +32,7 @@
 #include "i_system.h"
 #include "doomdef.h"
 #include "p_local.h"
+#include "m_bbox.h"
 #include "p_lnspec.h"
 #include "p_effect.h"
 #include "s_sound.h"
@@ -603,7 +604,9 @@ void P_DoNewChaseDir (AActor *actor, fixed_t deltax, fixed_t deltay)
 	}
 
 	// try other directions
-	if (pr_newchasedir() > 200 || abs(deltay) > abs(deltax))
+	if (!(actor->flags5 & MF5_AVOIDINGDROPOFF))
+	{
+		if ((pr_newchasedir() > 200 || abs(deltay) > abs(deltax)))
 		{
 			swap (d[1], d[2]);
 		}
@@ -612,6 +615,7 @@ void P_DoNewChaseDir (AActor *actor, fixed_t deltax, fixed_t deltay)
 			d[1] = DI_NODIR;
 		if (d[2] == turnaround)
 			d[2] = DI_NODIR;
+	}
 		
 	if (d[1] != DI_NODIR)
 	{
@@ -630,6 +634,8 @@ void P_DoNewChaseDir (AActor *actor, fixed_t deltax, fixed_t deltay)
 			return;
 	}
 
+	if (!(actor->flags5 & MF5_AVOIDINGDROPOFF))
+	{
 		// there is no direct path to the player, so pick another direction.
 		if (olddir != DI_NODIR)
 		{
@@ -637,6 +643,7 @@ void P_DoNewChaseDir (AActor *actor, fixed_t deltax, fixed_t deltay)
 			if (P_TryWalk (actor))
 				return;
 		}
+	}
 
 	// randomly determine direction of search
 	if (pr_newchasedir() & 1)	
@@ -688,51 +695,6 @@ void P_DoNewChaseDir (AActor *actor, fixed_t deltax, fixed_t deltay)
 // hang over dropoffs.
 //=============================================================================
 
-struct avoiddropoff_t
-{
-	AActor * thing;
-	fixed_t deltax;
-	fixed_t deltay;
-	fixed_t floorx;
-	fixed_t floory;
-	fixed_t floorz;
-	fixed_t t_bbox[4];
-} a;
-
-static bool PIT_AvoidDropoff(line_t *line)
-{
-	if (line->backsector                          && // Ignore one-sided linedefs
-		a.t_bbox[BOXRIGHT]  > line->bbox[BOXLEFT]   &&
-		a.t_bbox[BOXLEFT]   < line->bbox[BOXRIGHT]  &&
-		a.t_bbox[BOXTOP]    > line->bbox[BOXBOTTOM] && // Linedef must be contacted
-		a.t_bbox[BOXBOTTOM] < line->bbox[BOXTOP]    &&
-		P_BoxOnLineSide(a.t_bbox, line) == -1)
-    {
-		fixed_t front = line->frontsector->floorplane.ZatPoint(a.floorx,a.floory);
-		fixed_t back  = line->backsector->floorplane.ZatPoint(a.floorx,a.floory);
-		angle_t angle;
-		
-		// The monster must contact one of the two floors,
-		// and the other must be a tall dropoff.
-		
-		if (back == a.floorz && front < a.floorz - a.thing->MaxDropOffHeight)
-		{
-			angle = R_PointToAngle2(0,0,line->dx,line->dy);   // front side dropoff
-		}
-		else if (front == a.floorz && back < a.floorz - a.thing->MaxDropOffHeight)
-		{
-			angle = R_PointToAngle2(line->dx,line->dy,0,0); // back side dropoff
-		}
-		else return true;
-		
-		// Move away from dropoff at a standard speed.
-		// Multiple contacted linedefs are cumulative (e.g. hanging over corner)
-		a.deltax -= finesine[angle >> ANGLETOFINESHIFT]*32;
-		a.deltay += finecosine[angle >> ANGLETOFINESHIFT]*32;
-    }
-	return true;
-}
-
 //=============================================================================
 //
 // P_NewChaseDir
@@ -777,26 +739,46 @@ void P_NewChaseDir(AActor * actor)
 		!(actor->flags2 & MF2_ONMOBJ) &&
 		!(actor->flags & MF_FLOAT) && !(i_compatflags & COMPATF_DROPOFF))
 	{
-		a.thing = actor;
+		FBoundingBox box(actor->x, actor->y, actor->radius);
-		a.deltax = a.deltay = 0;
+		FBlockLinesIterator it(box);
-		a.floorx = actor->x;
+		line_t *line;
-		a.floory = actor->y;
-		a.floorz = actor->z;
 
-		int yh=((a.t_bbox[BOXTOP]   = actor->y+actor->radius)-bmaporgy)>>MAPBLOCKSHIFT;
+		fixed_t deltax = 0;
-		int yl=((a.t_bbox[BOXBOTTOM]= actor->y-actor->radius)-bmaporgy)>>MAPBLOCKSHIFT;
+		fixed_t deltay = 0;
-		int xh=((a.t_bbox[BOXRIGHT] = actor->x+actor->radius)-bmaporgx)>>MAPBLOCKSHIFT;
+		while ((line = it.Next()))
-		int xl=((a.t_bbox[BOXLEFT]  = actor->x-actor->radius)-bmaporgx)>>MAPBLOCKSHIFT;
+		{
-		int bx, by;
+			if (line->backsector                     && // Ignore one-sided linedefs
+				box.Right()  > line->bbox[BOXLEFT]   &&
+				box.Left()   < line->bbox[BOXRIGHT]  &&
+				box.Top()    > line->bbox[BOXBOTTOM] && // Linedef must be contacted
+				box.Bottom() < line->bbox[BOXTOP]    &&
+				box.BoxOnLineSide(line) == -1)
+		    {
+				fixed_t front = line->frontsector->floorplane.ZatPoint(actor->x,actor->y);
+				fixed_t back  = line->backsector->floorplane.ZatPoint(actor->x,actor->y);
+				angle_t angle;
 		
-		// check lines
+				// The monster must contact one of the two floors,
+				// and the other must be a tall dropoff.
 				
-		validcount++;
+				if (back == actor->z && front < actor->z - actor->MaxDropOffHeight)
-		for (bx=xl ; bx<=xh ; bx++)
+				{
-			for (by=yl ; by<=yh ; by++)
+					angle = R_PointToAngle2(0,0,line->dx,line->dy);   // front side dropoff
-				P_BlockLinesIterator(bx, by, PIT_AvoidDropoff);  // all contacted lines
+				}
+				else if (front == actor->z && back < actor->z - actor->MaxDropOffHeight)
+				{
+					angle = R_PointToAngle2(line->dx,line->dy,0,0); // back side dropoff
+				}
+				else continue;
 		
-		if (a.deltax || a.deltay) 
+				// 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;
+			}
+		}
+
+		if (deltax || deltay) 
 		{
 			// [Graf Zahl] I have changed P_TryMove to only apply this logic when
 			// being called from here. AVOIDINGDROPOFF activates the code that
@@ -806,7 +788,7 @@ void P_NewChaseDir(AActor * actor)
 
 			// use different dropoff movement logic in P_TryMove
 			actor->flags5|=MF5_AVOIDINGDROPOFF;
-			P_DoNewChaseDir(actor, a.deltax, a.deltay);
+			P_DoNewChaseDir(actor, deltax, deltay);
 			actor->flags5&=~MF5_AVOIDINGDROPOFF;
 		
 			// If moving away from dropoff, set movecount to 1 so that 

src/p_local.h

@@ -234,7 +234,27 @@ struct FLineOpening
 
 void	P_LineOpening (FLineOpening &open, AActor *thing, const line_t *linedef, fixed_t x, fixed_t y, fixed_t refx=FIXED_MIN, fixed_t refy=0);
 
-bool P_BlockLinesIterator (int x, int y, bool(*func)(line_t*));
+class FBoundingBox;
+
+class FBlockLinesIterator
+{
+	int minx, maxx;
+	int miny, maxy;
+
+	int curx, cury;
+	polyblock_t *polyLink;
+	int polyIndex;
+	int *list;
+
+	void StartBlock(int x, int y);
+
+public:
+	FBlockLinesIterator(int minx, int miny, int maxx, int maxy, bool keepvalidcount = false);
+	FBlockLinesIterator(const FBoundingBox &box);
+	line_t *Next();
+	void Reset() { StartBlock(minx, miny); }
+};
+
 bool P_BlockThingsIterator (int x, int y, bool(*func)(AActor*), TArray<AActor *> &checkarray, AActor *start=NULL);
 
 

src/p_map.cpp

@@ -100,8 +100,6 @@ int				tmceilingpic;
 sector_t		*tmceilingsector;
 bool			tmtouchmidtex;
 
-static fixed_t	tmfbbox[4];
-static AActor	*tmfthing;
 fixed_t			tmffloorz;
 fixed_t			tmfceilingz;
 fixed_t			tmfdropoffz;
@@ -142,15 +140,15 @@ AActor *LastRipped;
 //
 //==========================================================================
 
-static bool PIT_FindFloorCeiling (line_t *ld)
+static bool PIT_FindFloorCeiling (line_t *ld, AActor *tmfthing, const FBoundingBox &box, fixed_t tmx, fixed_t tmy)
 {
-	if (tmfbbox[BOXRIGHT] <= ld->bbox[BOXLEFT]
+	if (box.Right() <= ld->bbox[BOXLEFT]
-		|| tmfbbox[BOXLEFT] >= ld->bbox[BOXRIGHT]
+		|| box.Left() >= ld->bbox[BOXRIGHT]
-		|| tmfbbox[BOXTOP] <= ld->bbox[BOXBOTTOM]
+		|| box.Top() <= ld->bbox[BOXBOTTOM]
-		|| tmfbbox[BOXBOTTOM] >= ld->bbox[BOXTOP] )
+		|| box.Bottom() >= ld->bbox[BOXTOP] )
 		return true;
 
-	if (P_BoxOnLineSide (tmfbbox, ld) != -1)
+	if (box.BoxOnLineSide (ld) != -1)
 		return true;
 
 	// A line has been hit
@@ -223,17 +221,13 @@ static bool PIT_FindFloorCeiling (line_t *ld)
 
 void P_FindFloorCeiling (AActor *actor)
 {
-	int	xl,xh,yl,yh,bx,by;
 	fixed_t x, y;
 	sector_t *sec;
 
 	x = actor->x;
 	y = actor->y;
 
-	tmfbbox[BOXTOP] = y + actor->radius;
+	FBoundingBox box(x, y, actor->radius);
-	tmfbbox[BOXBOTTOM] = y - actor->radius;
-	tmfbbox[BOXRIGHT] = x + actor->radius;
-	tmfbbox[BOXLEFT] = x - actor->radius;
 
 	sec = P_PointInSector (x, y);
 	tmffloorz = tmfdropoffz = sec->floorplane.ZatPoint (x, y);
@@ -242,18 +236,15 @@ void P_FindFloorCeiling (AActor *actor)
 	tmffloorsector = sec;
 	tmfceilingpic = sec->ceilingpic;
 	tmfceilingsector = sec;
-	tmfthing = actor;
 	validcount++;
 
-	xl = (tmfbbox[BOXLEFT] - bmaporgx) >> MAPBLOCKSHIFT;
+	FBlockLinesIterator it(box);
-	xh = (tmfbbox[BOXRIGHT] - bmaporgx) >> MAPBLOCKSHIFT;
+	line_t *ld;
-	yl = (tmfbbox[BOXBOTTOM] - bmaporgy) >> MAPBLOCKSHIFT;
-	yh = (tmfbbox[BOXTOP] - bmaporgy) >> MAPBLOCKSHIFT;
 
-	for (bx = xl; bx <= xh; bx++)
+	while ((ld = it.Next()))
-		for (by = yl; by <= yh; by++)
+	{
-			if (!P_BlockLinesIterator (bx, by, PIT_FindFloorCeiling))
+		PIT_FindFloorCeiling(ld, actor, box, x, y);
-				return;
+	}
 
 	if (tmftouchmidtex) tmfdropoffz = tmffloorz;
 }
@@ -340,10 +331,10 @@ bool P_TeleportMove (AActor *thing, fixed_t x, fixed_t y, fixed_t z, bool telefr
 	tmy = y;
 	tmz = z;
 		
-	tmfbbox[BOXTOP] = tmbbox[BOXTOP] = y + tmthing->radius;
+	tmbbox[BOXTOP] = y + tmthing->radius;
-	tmfbbox[BOXBOTTOM] = tmbbox[BOXBOTTOM] = y - tmthing->radius;
+	tmbbox[BOXBOTTOM] = y - tmthing->radius;
-	tmfbbox[BOXRIGHT] = tmbbox[BOXRIGHT] = x + tmthing->radius;
+	tmbbox[BOXRIGHT] = x + tmthing->radius;
-	tmfbbox[BOXLEFT] = tmbbox[BOXLEFT] = x - tmthing->radius;
+	tmbbox[BOXLEFT] = x - tmthing->radius;
 
 	newsec = P_PointInSector (x,y);
 	ceilingline = NULL;
@@ -356,7 +347,6 @@ bool P_TeleportMove (AActor *thing, fixed_t x, fixed_t y, fixed_t z, bool telefr
 	tmffloorsector = newsec;
 	tmfceilingpic = newsec->ceilingpic;
 	tmfceilingsector = newsec;
-	tmfthing = tmthing;
 					
 	validcount++;
 	spechit.Clear ();
@@ -364,21 +354,13 @@ bool P_TeleportMove (AActor *thing, fixed_t x, fixed_t y, fixed_t z, bool telefr
 
 	StompAlwaysFrags = tmthing->player || (level.flags & LEVEL_MONSTERSTELEFRAG) || telefrag;
 
-	// stomp on any things contacted
+	FBoundingBox box(x, y, thing->radius);
-	xl = (tmbbox[BOXLEFT] - bmaporgx - MAXRADIUS)>>MAPBLOCKSHIFT;
+	FBlockLinesIterator it(box);
-	xh = (tmbbox[BOXRIGHT] - bmaporgx + MAXRADIUS)>>MAPBLOCKSHIFT;
+	line_t *ld;
-	yl = (tmbbox[BOXBOTTOM] - bmaporgy - MAXRADIUS)>>MAPBLOCKSHIFT;
-	yh = (tmbbox[BOXTOP] - bmaporgy + MAXRADIUS)>>MAPBLOCKSHIFT;
 
-	for (bx=xl ; bx<=xh ; bx++)
+	while ((ld = it.Next()))
 	{
-		for (by=yl ; by<=yh ; by++)
+		PIT_FindFloorCeiling(ld, thing, box, x, y);
-		{
-			if (!P_BlockLinesIterator(bx,by,PIT_FindFloorCeiling))
-			{
-				return false;
-			}
-		}
 	}
 
 	if (tmftouchmidtex) tmfdropoffz = tmffloorz;
@@ -391,6 +373,13 @@ bool P_TeleportMove (AActor *thing, fixed_t x, fixed_t y, fixed_t z, bool telefr
 	int savecpic = tmffloorpic;
 	fixed_t savedropoff = tmfdropoffz;
 
+	// stomp on any things contacted
+	xl = (tmbbox[BOXLEFT] - bmaporgx - MAXRADIUS)>>MAPBLOCKSHIFT;
+	xh = (tmbbox[BOXRIGHT] - bmaporgx + MAXRADIUS)>>MAPBLOCKSHIFT;
+	yl = (tmbbox[BOXBOTTOM] - bmaporgy - MAXRADIUS)>>MAPBLOCKSHIFT;
+	yh = (tmbbox[BOXTOP] - bmaporgy + MAXRADIUS)>>MAPBLOCKSHIFT;
+
+	// stomp on any things contacted
 	for (bx=xl ; bx<=xh ; bx++)
 	{
 		for (by=yl ; by<=yh ; by++)
@@ -609,54 +598,23 @@ int P_GetMoveFactor (const AActor *mo, int *frictionp)
 // MOVEMENT ITERATOR FUNCTIONS
 //
 
-//																	// phares
-// PIT_CrossLine													//   |
-// Checks to see if a PE->LS trajectory line crosses a blocking		//   V
-// line. Returns false if it does.
-//
-// tmbbox holds the bounding box of the trajectory. If that box
-// does not touch the bounding box of the line in question,
-// then the trajectory is not blocked. If the PE is on one side
-// of the line and the LS is on the other side, then the
-// trajectory is blocked.
-//
-// Currently this assumes an infinite line, which is not quite
-// correct. A more correct solution would be to check for an
-// intersection of the trajectory and the line, but that takes
-// longer and probably really isn't worth the effort.
-//
-
-static // killough 3/26/98: make static
-bool PIT_CrossLine (line_t* ld)
-{
-	if (!(ld->flags & ML_TWOSIDED) ||
-		(ld->flags & (ML_BLOCKING|ML_BLOCKMONSTERS|ML_BLOCKEVERYTHING)))
-		if (!(tmbbox[BOXLEFT]   > ld->bbox[BOXRIGHT]  ||
-			  tmbbox[BOXRIGHT]  < ld->bbox[BOXLEFT]   ||
-			  tmbbox[BOXTOP]    < ld->bbox[BOXBOTTOM] ||
-			  tmbbox[BOXBOTTOM] > ld->bbox[BOXTOP]))
-			if (P_PointOnLineSide(pe_x,pe_y,ld) != P_PointOnLineSide(ls_x,ls_y,ld))
-				return(false);  // line blocks trajectory				//   ^
-	return(true); // line doesn't block trajectory					//   |
-}																	// phares
-
 //
 // PIT_CheckLine
 // Adjusts tmfloorz and tmceilingz as lines are contacted
 //
 
 static // killough 3/26/98: make static
-bool PIT_CheckLine (line_t *ld)
+bool PIT_CheckLine (line_t *ld, const FBoundingBox &box)
 {
 	bool rail = false;
 
-	if (tmbbox[BOXRIGHT] <= ld->bbox[BOXLEFT]
+	if (box.Right() <= ld->bbox[BOXLEFT]
-		|| tmbbox[BOXLEFT] >= ld->bbox[BOXRIGHT]
+		|| box.Left() >= ld->bbox[BOXRIGHT]
-		|| tmbbox[BOXTOP] <= ld->bbox[BOXBOTTOM]
+		|| box.Top() <= ld->bbox[BOXBOTTOM]
-		|| tmbbox[BOXBOTTOM] >= ld->bbox[BOXTOP] )
+		|| box.Bottom() >= ld->bbox[BOXTOP] )
 		return true;
 
-	if (P_BoxOnLineSide (tmbbox, ld) != -1)
+	if (box.BoxOnLineSide (ld) != -1)
 		return true;
 
 	// A line has been hit
@@ -1113,51 +1071,6 @@ bool PIT_CheckThing (AActor *thing)
 	// return !(thing->flags & MF_SOLID);	// old code -- killough
 }
 
-// This routine checks for Lost Souls trying to be spawned		// phares
-// across 1-sided lines, impassible lines, or "monsters can't	//   |
-// cross" lines. Draw an imaginary line between the PE			//   V
-// and the new Lost Soul spawn spot. If that line crosses
-// a 'blocking' line, then disallow the spawn. Only search
-// lines in the blocks of the blockmap where the bounding box
-// of the trajectory line resides. Then check bounding box
-// of the trajectory vs. the bounding box of each blocking
-// line to see if the trajectory and the blocking line cross.
-// Then check the PE and LS to see if they're on different
-// sides of the blocking line. If so, return true, otherwise
-// false.
-
-bool Check_Sides(AActor* actor, int x, int y)
-{
-	int bx,by,xl,xh,yl,yh;
-
-	pe_x = actor->x;
-	pe_y = actor->y;
-	ls_x = x;
-	ls_y = y;
-
-	// Here is the bounding box of the trajectory
-
-	tmbbox[BOXLEFT]   = pe_x < x ? pe_x : x;
-	tmbbox[BOXRIGHT]  = pe_x > x ? pe_x : x;
-	tmbbox[BOXTOP]    = pe_y > y ? pe_y : y;
-	tmbbox[BOXBOTTOM] = pe_y < y ? pe_y : y;
-
-	// Determine which blocks to look in for blocking lines
-
-	xl = (tmbbox[BOXLEFT]   - bmaporgx)>>MAPBLOCKSHIFT;
-	xh = (tmbbox[BOXRIGHT]  - bmaporgx)>>MAPBLOCKSHIFT;
-	yl = (tmbbox[BOXBOTTOM] - bmaporgy)>>MAPBLOCKSHIFT;
-	yh = (tmbbox[BOXTOP]    - bmaporgy)>>MAPBLOCKSHIFT;
-
-	// xl->xh, yl->yh determine the mapblock set to search
-
-	validcount++; // prevents checking same line twice
-	for (bx = xl ; bx <= xh ; bx++)
-		for (by = yl ; by <= yh ; by++)
-		if (!P_BlockLinesIterator(bx,by,PIT_CrossLine))
-			return true;										//   ^
-	return(false);												//   |
-}																// phares
 
 //---------------------------------------------------------------------------
 //
@@ -1286,10 +1199,12 @@ bool P_CheckPosition (AActor *thing, fixed_t x, fixed_t y)
 	tmx = x;
 	tmy = y;
 
-	tmbbox[BOXTOP] = y + thing->radius;
+	FBoundingBox box(x, y, thing->radius);
-	tmbbox[BOXBOTTOM] = y - thing->radius;
+
-	tmbbox[BOXRIGHT] = x + thing->radius;
+	tmbbox[BOXTOP] = box.Top();
-	tmbbox[BOXLEFT] = x - thing->radius;
+	tmbbox[BOXBOTTOM] = box.Bottom();
+	tmbbox[BOXRIGHT] = box.Right();
+	tmbbox[BOXLEFT] = box.Left();
 
 	newsec = P_PointInSector (x,y);
 	ceilingline = BlockingLine = NULL;
@@ -1407,19 +1322,18 @@ bool P_CheckPosition (AActor *thing, fixed_t x, fixed_t y)
 	thing->height = realheight;
 	if (tmflags & MF_NOCLIP)
 		return (BlockingMobj = thingblocker) == NULL;
-	xl = (tmbbox[BOXLEFT] - bmaporgx)>>MAPBLOCKSHIFT;
+
-	xh = (tmbbox[BOXRIGHT] - bmaporgx)>>MAPBLOCKSHIFT;
+	FBlockLinesIterator it(box);
-	yl = (tmbbox[BOXBOTTOM] - bmaporgy)>>MAPBLOCKSHIFT;
+	line_t *ld;
-	yh = (tmbbox[BOXTOP] - bmaporgy)>>MAPBLOCKSHIFT;
 
 	fixed_t thingdropoffz = tmfloorz;
 	//bool onthing = (thingdropoffz != tmdropoffz);
 	tmfloorz = tmdropoffz;
 
-	for (bx=xl ; bx<=xh ; bx++)
+	while ((ld = it.Next()))
-		for (by=yl ; by<=yh ; by++)
+	{
-			if (!P_BlockLinesIterator (bx,by,PIT_CheckLine))
+		if (!PIT_CheckLine(ld, box)) return false;
-				return false;
+	}
 
 	if (tmceilingz - tmfloorz < thing->height)
 		return false;
@@ -4713,50 +4627,6 @@ void P_DelSeclist (msecnode_t *node)
 		node = P_DelSecnode (node);
 }
 
-//=============================================================================
-// phares 3/14/98
-//
-// PIT_GetSectors
-//
-// Locates all the sectors the object is in by looking at the lines that
-// cross through it. You have already decided that the object is allowed
-// at this location, so don't bother with checking impassable or
-// blocking lines.
-//=============================================================================
-
-bool PIT_GetSectors (line_t *ld)
-{
-	if (tmbbox[BOXRIGHT]	  <= ld->bbox[BOXLEFT]	 ||
-			tmbbox[BOXLEFT]   >= ld->bbox[BOXRIGHT]  ||
-			tmbbox[BOXTOP]	  <= ld->bbox[BOXBOTTOM] ||
-			tmbbox[BOXBOTTOM] >= ld->bbox[BOXTOP])
-		return true;
-
-	if (P_BoxOnLineSide (tmbbox, ld) != -1)
-		return true;
-
-	// This line crosses through the object.
-
-	// Collect the sector(s) from the line and add to the
-	// sector_list you're examining. If the Thing ends up being
-	// allowed to move to this position, then the sector_list
-	// will be attached to the Thing's AActor at touching_sectorlist.
-
-	sector_list = P_AddSecnode (ld->frontsector,tmthing,sector_list);
-
-	// Don't assume all lines are 2-sided, since some Things
-	// like MT_TFOG are allowed regardless of whether their radius takes
-	// them beyond an impassable linedef.
-
-	// killough 3/27/98, 4/4/98:
-	// Use sidedefs instead of 2s flag to determine two-sidedness.
-
-	if (ld->backsector)
-		sector_list = P_AddSecnode(ld->backsector, tmthing, sector_list);
-
-	return true;
-}
-
 //=============================================================================
 // phares 3/14/98
 //
@@ -4768,18 +4638,8 @@ bool PIT_GetSectors (line_t *ld)
 
 void P_CreateSecNodeList (AActor *thing, fixed_t x, fixed_t y)
 {
-	int xl, xh, yl, yh, bx, by;
 	msecnode_t *node;
 
-	// [RH] Save old tm* values.
-	AActor *thingsave = tmthing;
-	int flagssave = tmflags;
-	fixed_t xsave = tmx;
-	fixed_t ysave = tmy;
-	fixed_t bboxsave[4];
-
-	memcpy (bboxsave, tmbbox, sizeof(bboxsave));
-
 	// First, clear out the existing m_thing fields. As each node is
 	// added or verified as needed, m_thing will be set properly. When
 	// finished, delete all nodes where m_thing is still NULL. These
@@ -4792,27 +4652,40 @@ void P_CreateSecNodeList (AActor *thing, fixed_t x, fixed_t y)
 		node = node->m_tnext;
 	}
 
-	tmthing = thing;
+	FBoundingBox box(thing->x, thing->y, thing->radius);
-	tmflags = thing->flags;
+	FBlockLinesIterator it(box);
+	line_t *ld;
 
-	tmx = x;
+	while ((ld = it.Next()))
-	tmy = y;
+	{
+		if (box.Right()  <= ld->bbox[BOXLEFT]	 ||
+			box.Left()   >= ld->bbox[BOXRIGHT]  ||
+			box.Top()    <= ld->bbox[BOXBOTTOM] ||
+			box.Bottom() >= ld->bbox[BOXTOP])
+			continue;
 
-	tmbbox[BOXTOP]	  = y + tmthing->radius;
+		if (box.BoxOnLineSide (ld) != -1)
-	tmbbox[BOXBOTTOM] = y - tmthing->radius;
+			continue;
-	tmbbox[BOXRIGHT]  = x + tmthing->radius;
-	tmbbox[BOXLEFT]   = x - tmthing->radius;
 
-	validcount++; // used to make sure we only process a line once
+		// This line crosses through the object.
 
-	xl = (tmbbox[BOXLEFT] - bmaporgx)>>MAPBLOCKSHIFT;
+		// Collect the sector(s) from the line and add to the
-	xh = (tmbbox[BOXRIGHT] - bmaporgx)>>MAPBLOCKSHIFT;
+		// sector_list you're examining. If the Thing ends up being
-	yl = (tmbbox[BOXBOTTOM] - bmaporgy)>>MAPBLOCKSHIFT;
+		// allowed to move to this position, then the sector_list
-	yh = (tmbbox[BOXTOP] - bmaporgy)>>MAPBLOCKSHIFT;
+		// will be attached to the Thing's AActor at touching_sectorlist.
 
-	for (bx = xl; bx <= xh; bx++)
+		sector_list = P_AddSecnode (ld->frontsector,thing,sector_list);
-		for (by = yl; by <= yh; by++)
+
-			P_BlockLinesIterator (bx,by,PIT_GetSectors);
+		// Don't assume all lines are 2-sided, since some Things
+		// like MT_TFOG are allowed regardless of whether their radius takes
+		// them beyond an impassable linedef.
+
+		// killough 3/27/98, 4/4/98:
+		// Use sidedefs instead of 2s flag to determine two-sidedness.
+
+		if (ld->backsector)
+			sector_list = P_AddSecnode(ld->backsector, thing, sector_list);
+	}
 
 	// Add the sector of the (x,y) point to sector_list.
 
@@ -4835,13 +4708,6 @@ void P_CreateSecNodeList (AActor *thing, fixed_t x, fixed_t y)
 			node = node->m_tnext;
 		}
 	}
-
-	// [RH] Restore old tm* values.
-	tmthing = thingsave;
-	tmflags = flagssave;
-	tmx = xsave;
-	tmy = ysave;
-	memcpy (tmbbox, bboxsave, sizeof(bboxsave));
 }
 
 void SpawnShootDecal (AActor *t1, const FTraceResults &trace)

src/p_maputl.cpp

@@ -677,75 +677,119 @@ void FBlockNode::Release ()
 
 
 //
-// P_BlockLinesIterator
+// FBlockLinesIterator
-// The validcount flags are used to avoid checking lines
-// that are marked in multiple mapblocks,
-// so increment validcount before the first call
-// to P_BlockLinesIterator, then make one or more calls
-// to it.
 //
 extern polyblock_t **PolyBlockMap;
 
-bool P_BlockLinesIterator (int x, int y, bool(*func)(line_t*))
+FBlockLinesIterator::FBlockLinesIterator(int _minx, int _miny, int _maxx, int _maxy, bool keepvalidcount)
 {
-	if (x<0 || y<0 || x>=bmapwidth || y>=bmapheight)
+	if (!keepvalidcount) validcount++;
-	{
+	minx = _minx;
-		return true;
+	maxx = _maxx;
-	}
+	miny = _miny;
-	else
+	maxy = _maxy;
-	{
+	Reset();
-		int	offset;
+}
-		int *list;
 
-		/* [RH] Polyobj stuff from Hexen --> */
+FBlockLinesIterator::FBlockLinesIterator(const FBoundingBox &box)
-		polyblock_t *polyLink;
+{
+	validcount++;
+	maxy = (box.Top() - bmaporgy) >> MAPBLOCKSHIFT;
+	miny = (box.Bottom() - bmaporgy) >> MAPBLOCKSHIFT;
+	maxx = (box.Right() - bmaporgx) >> MAPBLOCKSHIFT;
+	minx = (box.Left() - bmaporgx) >> MAPBLOCKSHIFT;
+	Reset();
+}
 
-		offset = y*bmapwidth + x;
-		if (PolyBlockMap)
-		{
-			polyLink = PolyBlockMap[offset];
-			while (polyLink)
-			{
-				if (polyLink->polyobj && polyLink->polyobj->validcount != validcount)
-				{
-					int i;
-					seg_t **tempSeg = polyLink->polyobj->segs;
-					polyLink->polyobj->validcount = validcount;
 
-					for (i = polyLink->polyobj->numsegs; i; i--, tempSeg++)
+void FBlockLinesIterator::StartBlock(int x, int y) 
+{ 
+	if (x >= 0 && y >= 0 && x < bmapwidth && y <bmapheight)
 	{
-						if ((*tempSeg)->linedef->validcount != validcount)
+		curx = x; 
-						{
+		cury = y; 
-							(*tempSeg)->linedef->validcount = validcount;
+		int offset = y*bmapwidth + x;
-							if (!func ((*tempSeg)->linedef))
+		polyLink = PolyBlockMap? PolyBlockMap[offset] : NULL;
-								return false;
+		polyIndex = 0;
-						}
-					}
-				}
-				polyLink = polyLink->next;
-			}
-		}
-		/* <-- Polyobj stuff from Hexen */
-
-		offset = *(blockmap + offset);
 
 		// There is an extra entry at the beginning of every block.
 		// Apparently, id had originally intended for it to be used
 		// to keep track of things, but the final code does not do that.
-		for (list = blockmaplump + offset + 1; *list != -1; list++)
+		list = blockmaplump + *(blockmap + offset) + 1;
+	}
+	else
+	{
+		// invalid block
+		list = NULL;
+		polyLink = NULL;
+	}
+}
+
+line_t *FBlockLinesIterator::Next()
+{
+	while (true)
+	{
+		while (polyLink != NULL)
+		{
+			if (polyLink->polyobj)
+			{
+				if (polyIndex == 0)
+				{
+					if (polyLink->polyobj->validcount == validcount)
+					{
+						polyLink = polyLink->next;
+						continue;
+					}
+					polyLink->polyobj->validcount = validcount;
+				}
+
+				seg_t *seg = polyLink->polyobj->segs[polyIndex];
+
+				if (++polyIndex >= polyLink->polyobj->numsegs)
+				{
+					polyLink = polyLink->next;
+					polyIndex = 0;
+				}
+
+				line_t *ld = seg->linedef;
+				if (ld->validcount == validcount)
+				{
+					continue;
+				}
+				else
+				{
+					ld->validcount = validcount;
+					return ld;
+				}
+			}
+			else polyLink = polyLink->next;
+		}
+
+		if (list != NULL)
+		{
+			while (*list != -1)
 			{
 				line_t *ld = &lines[*list];
 
 				if (ld->validcount != validcount)
 				{
 					ld->validcount = validcount;
+					return ld;
+				}
+				else
+				{
+					list++;
+				}
+			}
+		}
 
-				if ( !func(ld) )
+		if (++curx > maxx)
-					return false;
+		{
+			curx = minx;
+			if (++cury > maxy) return NULL;
 		}
+		StartBlock(curx, cury);
 	}
-	}
-	return true;		// everything was checked
 }
 
 
@@ -829,8 +873,13 @@ int 			ptflags;
 // are on opposite sides of the trace.
 // Returns true if earlyout and a solid line hit.
 //
-bool PIT_AddLineIntercepts (line_t *ld)
+void P_AddLineIntercepts(int bx, int by)
 {
+	FBlockLinesIterator it(bx, by, bx, by, true);
+	line_t *ld;
+
+	while ((ld = it.Next()))
+	{
 		int 				s1;
 		int 				s2;
 		fixed_t 			frac;
@@ -851,16 +900,15 @@ bool PIT_AddLineIntercepts (line_t *ld)
 			s2 = P_PointOnLineSide (trace.x+trace.dx, trace.y+trace.dy, ld);
 		}
 		
-	if (s1 == s2)
+		if (s1 == s2) continue;	// line isn't crossed
-		return true;	// line isn't crossed
 		
 		// hit the line
 		P_MakeDivline (ld, &dl);
 		frac = P_InterceptVector (&trace, &dl);
 
-	if (frac < 0)
+		if (frac < 0) continue;	// behind source
-		return true;	// behind source
 			
+		/* unused code
 		// try to early out the check
 		if (earlyout
 			&& frac < FRACUNIT
@@ -868,6 +916,7 @@ bool PIT_AddLineIntercepts (line_t *ld)
 		{
 			return false;	// stop checking
 		}
+		*/
 		
 
 		intercept_t newintercept;
@@ -876,12 +925,10 @@ bool PIT_AddLineIntercepts (line_t *ld)
 		newintercept.isaline = true;
 		newintercept.d.line = ld;
 		intercepts.Push (newintercept);
-
+	}
-	return true;		// continue
 }
 
 
-
 //
 // PIT_AddThingIntercepts
 //
@@ -1145,8 +1192,7 @@ bool P_PathTraverse (fixed_t x1, fixed_t y1, fixed_t x2, fixed_t y2, int flags,
 	{
 		if (flags & PT_ADDLINES)
 		{
-			if (!P_BlockLinesIterator (mapx, mapy, PIT_AddLineIntercepts))
+			P_AddLineIntercepts(mapx, mapy);
-				return false;	// early out
 		}
 		
 		if (flags & PT_ADDTHINGS)
@@ -1184,9 +1230,8 @@ bool P_PathTraverse (fixed_t x1, fixed_t y1, fixed_t x2, fixed_t y2, int flags,
 			// be checked.
 			if (flags & PT_ADDLINES)
 			{
-				if (!P_BlockLinesIterator (mapx + mapxstep, mapy, PIT_AddLineIntercepts) ||
+				P_AddLineIntercepts(mapx + mapxstep, mapy);
-					!P_BlockLinesIterator (mapx, mapy + mapystep, PIT_AddLineIntercepts))
+				P_AddLineIntercepts(mapx, mapy + mapystep);
-					return false;	// early out
 			}
 			
 			if (flags & PT_ADDTHINGS)
@@ -1330,3 +1375,5 @@ static AActor *RoughBlockCheck (AActor *mo, int index)
 	}
 	return NULL;
 }
+
+

src/p_mobj.cpp

@@ -3642,6 +3642,7 @@ APlayerPawn *P_SpawnPlayer (mapthing2_t *mthing, bool tempplayer)
 	p->damagecount = 0;
 	p->bonuscount = 0;
 	p->morphTics = 0;
+	p->MorphedPlayerClass = 0;
 	p->extralight = 0;
 	p->fixedcolormap = 0;
 	p->viewheight = mobj->ViewHeight;

src/p_user.cpp

@@ -242,6 +242,7 @@ player_s::player_s()
   attacker(0),
   extralight(0),
   morphTics(0),
+  MorphedPlayerClass(0),
   PremorphWeapon(0),
   chickenPeck(0),
   jumpTics(0),
@@ -2415,6 +2416,7 @@ void player_s::Serialize (FArchive &arc)
 		<< extralight
 		<< fixedcolormap
 		<< morphTics
+		<< MorphedPlayerClass
 		<< PremorphWeapon
 		<< chickenPeck
 		<< jumpTics

src/po_man.cpp

@@ -1068,7 +1068,6 @@ static bool CheckMobjBlocking (seg_t *seg, polyobj_t *po)
 	AActor *mobj;
 	int i, j, k;
 	int left, right, top, bottom;
-	fixed_t tmbbox[4];
 	line_t *ld;
 	bool blocked;
 
@@ -1110,19 +1109,16 @@ static bool CheckMobjBlocking (seg_t *seg, polyobj_t *po)
 					checker.Push (mobj);
 					if ((mobj->flags&MF_SOLID) && !(mobj->flags&MF_NOCLIP))
 					{
-						tmbbox[BOXTOP] = mobj->y+mobj->radius;
+						FBoundingBox box(mobj->x, mobj->y, mobj->radius);
-						tmbbox[BOXBOTTOM] = mobj->y-mobj->radius;
-						tmbbox[BOXLEFT] = mobj->x-mobj->radius;
-						tmbbox[BOXRIGHT] = mobj->x+mobj->radius;
 
-						if (tmbbox[BOXRIGHT] <= ld->bbox[BOXLEFT]
+						if (box.Right() <= ld->bbox[BOXLEFT]
-							|| tmbbox[BOXLEFT] >= ld->bbox[BOXRIGHT]
+							|| box.Left() >= ld->bbox[BOXRIGHT]
-							|| tmbbox[BOXTOP] <= ld->bbox[BOXBOTTOM]
+							|| box.Top() <= ld->bbox[BOXBOTTOM]
-							|| tmbbox[BOXBOTTOM] >= ld->bbox[BOXTOP])
+							|| box.Bottom() >= ld->bbox[BOXTOP])
 						{
 							continue;
 						}
-						if (P_BoxOnLineSide(tmbbox, ld) != -1)
+						if (box.BoxOnLineSide(ld) != -1)
 						{
 							continue;
 						}

src/v_video.h

@@ -35,7 +35,6 @@
 #define __V_VIDEO_H__
 
 #include "doomtype.h"
-#include "m_bbox.h"
 
 #include "v_palette.h"
 #include "v_font.h"

src/version.h

@@ -75,7 +75,7 @@
 // SAVESIG should match SAVEVER.
 
 // MINSAVEVER is the minimum level snapshot version that can be loaded.
-#define MINSAVEVER 879
+#define MINSAVEVER 887
 
 #if SVN_REVISION_NUMBER < MINSAVEVER
 // Never write a savegame with a version lower than what we need