Add entity map

game/main.c

@@ -93,6 +93,12 @@ bool init(void *userData) {
         .objectGroups[OBJECTS_GAME]=(BzTileObjectsDesc) {"Game"},
         .objectGroups[OBJECTS_ENTITIES]=(BzTileObjectsDesc ) {"Entities"}
     });
+    game->entityMap = entityMapCreate(&(EntityMapDesc) {
+        .maxWidth=game->map.width * game->map.tileWidth,
+        .maxHeight=game->map.height * game->map.tileHeight,
+        .cellResolution=game->map.tileWidth,
+        .cellDepth=10
+    });
 
     bzTileMapOverrideLayer(&game->map, LAYER_BUILDING_OWNER, initBuildingsLayer);