change ROTANGLES to 72

src/doomdef.h

@@ -625,7 +625,7 @@ extern const char *compdate, *comptime, *comprevision, *compbranch;
 
 /// Sprite rotation
 #define ROTSPRITE
-#define ROTANGLES 360 // Needs to be a divisor of 360 (45, 60, 90, 120...)
+#define ROTANGLES 72 // Needs to be a divisor of 360 (45, 60, 90, 120...)
 #define ROTANGDIFF (360 / ROTANGLES)
 
 #ifndef HAVE_PNG

src/r_patch.c

@@ -1102,7 +1102,7 @@ static UINT16 GetPatchPixel(patch_t *patch, INT32 x, INT32 y, boolean flip)
 	column_t *column;
 	UINT8 *source;
 
-	if (x < SHORT(patch->width))
+	if (x >= 0 && x < SHORT(patch->width))
 	{
 		INT32 topdelta, prevdelta = -1;
 		column = (column_t *)((UINT8 *)patch + LONG(patch->columnofs[flip ? (patch->width-1-x) : x]));