Fixed: Back segs of one-sided window tricks never intercept LOS rays.

skyjake · Sep 8, 2009 · f602046 · f602046
1 parent 54d120d
commit f602046
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/doomsday/engine/portable/src/p_sight.c b/doomsday/engine/portable/src/p_sight.c
@@ -113,6 +113,9 @@ static boolean crossLineDef(const linedef_t* li, byte side, losdata_t* los)
     if(!interceptLineDef(li, los, &dl))
         return true; // Ray does not intercept seg on the X/Y plane.
 
+    if(!li->L_side(side))
+        return true; // Seg is on the back side of a one-sided window.
+
     fsec = li->L_sector(side);
     bsec  = (li->L_backside? li->L_sector(side^1) : NULL);
     noBack = (!li->L_backside || !(bsec->SP_floorheight < bsec->SP_ceilheight));