added missing null check in clipmove.

This only very rarely triggered for Blood's projectiles, no other things use this code path.
ZDoom · Dec 20, 2023 · 485ad27 · 485ad27
1 parent af4eaf6
commit 485ad27
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/source/build/src/clip.cpp b/source/build/src/clip.cpp
@@ -605,7 +605,8 @@ CollisionBase clipmove_(vec3_t * const pos, int * const sectnum, int32_t xvect,
             DVector2 v(vec.X* inttoworld, vec.Y* inttoworld);
             sectortype* sect = &sector[*sectnum];
 			updatesector(v, &sect, rad * inttoworld);
-            *sectnum = ::sectindex(sect);
+            if (sect != nullptr) *sectnum = ::sectindex(sect);
+			else *sectnum = -1;
 		}
 
         pos->X = vec.X;
@@ -621,6 +622,7 @@ CollisionBase clipmove_(vec3_t * const pos, int * const sectnum, int32_t xvect,
             if (inside(fpos.X, fpos.Y, &sector[clipsectorlist[j]]) == 1)
             {
                 *sectnum = clipsectorlist[j];
+
                 return clipReturn;
             }