added basic support for additional empty space elements in game engine

[rocksndiamonds.git] / src / tools.c

diff --git a/src/tools.c b/src/tools.c
index 0271abfc43d83eb615b99fe8663df7cd83e0a5d5..a3e5306835f7082e83a21f22c3dc053f13f5257d 100644 (file)
--- a/src/tools.c
+++ b/src/tools.c
@@ -1496,6 +1496,15 @@ int getGraphicAnimationFrameXY(int graphic, int lx, int ly)
 
     return sync_frame % g->anim_frames;
   }
+  else if (graphic_info[graphic].anim_mode & ANIM_RANDOM_STATIC)
+  {
+    struct GraphicInfo *g = &graphic_info[graphic];
+    int x = (lx + lev_fieldx) % lev_fieldx;
+    int y = (ly + lev_fieldy) % lev_fieldy;
+    int sync_frame = GfxRandomStatic[x][y];
+
+    return sync_frame % g->anim_frames;
+  }
 
   return getGraphicAnimationFrame(graphic, GfxFrame[lx][ly]);
 }
@@ -1987,6 +1996,9 @@ void DrawScreenElementExt(int x, int y, int dx, int dy, int element,
   int graphic;
   int frame;
 
+  if (element == EL_EMPTY)
+    element = GfxElementEmpty[lx][ly];
+
   if (IN_LEV_FIELD(lx, ly))
   {
     SetRandomAnimationValue(lx, ly);
@@ -3951,7 +3963,7 @@ void DrawLevelGraphicAnimationIfNeeded(int x, int y, int graphic)
   if (!IS_NEW_FRAME(GfxFrame[x][y], graphic))
     return;
 
-  if (ANIM_MODE(graphic) & ANIM_TILED)
+  if (ANIM_MODE(graphic) & (ANIM_TILED | ANIM_RANDOM_STATIC))
     return;
 
   DrawGraphicAnimation(sx, sy, graphic);