Chunk loading improvements

tools/assetstool/processmap.py

@@ -14,16 +14,13 @@ TILE_WIDTH = 16.0
 TILE_HEIGHT = 16.0
 TILE_DEPTH = 11.36
 
-def createQuadForTile(tileIndex, x=0, y=0, z=0):
+def processTile(tileIndex, x=0, y=0, z=0):
   vertices = []
   indices = []
 
   # Tile 0, nothing
   if tileIndex == 0:
-    return {
-      'vertices': vertices,
-      'indices': indices
-    }
+    return None
 
   # Determine color for checkerboard pattern
   color = (255,255,255) if (x + y) % 2 == 0 else (0,0,0)
@@ -82,8 +79,8 @@ def processChunk(path):
     z = i // (CHUNK_WIDTH * CHUNK_HEIGHT)
 
     # Add tile 3D model
-    result = createQuadForTile(tile, x, y, z)
-    if len(result['vertices']) > 0:
+    result = processTile(tile, x, y, z)
+    if result is not None and len(result['vertices']) > 0:
       base = len(baseModel['vertices'])
       quad_indices = [base + idx for idx in result['indices']]
       baseModel['vertices'].extend(result['vertices'])