- Fixed: Textures with dimensions <= 0 are invalid and should be treated as NULL

textures. They also must be set to dimensions other than (0,0) to avoid division
  by zero errors.
- Fixed: Random spawners did not handle the MF_DROPPED flag.


SVN r1602 (trunk)

docs/rh-log.txt

@@ -8,6 +8,10 @@
   mouse input would be frozen until the mouse was ungrabbed again.
 
 May 23, 2009  (Changes by Graf Zahl)
+- Fixed: Textures with dimensions <= 0 are invalid and should be treated as NULL 
+  textures. They also must be set to dimensions other than (0,0) to avoid division
+  by zero errors.
+- Fixed: Random spawners did not handle the MF_DROPPED flag.
 - Fixed: When setting up a deep water sector with Transfer_Heights the floorclip
   information of all actors in the sector needs to be updated.
 

src/g_shared/a_randomspawner.cpp

@@ -80,6 +80,7 @@ class ARandomSpawner : public AActor
 				newmobj->target = target;
 				newmobj->tracer = tracer;
 				newmobj->CopyFriendliness(this, false);
+				if (!(flags & MF_DROPPED)) newmobj->flags &= ~MF_DROPPED;
 				// Special1 is used to count how many recursions we're in.
 				if (newmobj->IsKindOf(PClass::FindClass("RandomSpawner")))
 					newmobj->special1 = ++special1;

src/textures/multipatchtexture.cpp

@@ -1146,7 +1146,7 @@ FMultiPatchTexture::FMultiPatchTexture (FScanner &sc, int usetype)
 	sc.MustGetNumber();
 	Height = sc.Number;
 	UseType = usetype;
-
+	
 	if (sc.CheckString("{"))
 	{
 		while (!sc.CheckString("}"))
@@ -1200,7 +1200,7 @@ FMultiPatchTexture::FMultiPatchTexture (FScanner &sc, int usetype)
 		Parts = new TexPart[NumParts];
 		memcpy(Parts, &parts[0], NumParts * sizeof(*Parts));
 
-		CalcBitSize ();
+		//CalcBitSize ();
 
 		// If this texture is just a wrapper around a single patch, we can simply
 		// forward GetPixels() and GetColumn() calls to that patch.
@@ -1216,6 +1216,16 @@ FMultiPatchTexture::FMultiPatchTexture (FScanner &sc, int usetype)
 			}
 		}
 	}
+	
+	if (Width <= 0 || Height <= 0)
+	{
+		UseType = FTexture::TEX_Null;
+		Printf("Texture %s has invalid dimensions (%d, %d)\n", Name, Width, Height);
+		Width = Height = 1;
+	}
+	CalcBitSize ();
+
+	
 	sc.SetCMode(false);
 }