Fog of war drawing doesn't suck anymore.

cocos2d.py

@@ -484,28 +484,27 @@ def add_visible_area(self, center, visible_type=0, radius=7):
             terrain_map.hexagon_map[h].visible += visible_type
 
     def draw_fog(self):
-        pass
-        # print("draw fog")
-        # viewport_hexes = scroller.visible_hexes
-        # for k in viewport_hexes:
-        #     h = terrain_map.hexagon_map[k]
-        #     if h.visible == 0:
-        #         pass
-        #         position = hex_math.hex_to_pixel(layout, k, False)
-        #         anchor = sprite_width / 2, sprite_height / 2
-        #         sprite_id = "fog"
-        #         sprite = Sprite(sprite_images[sprite_id], position=position, anchor=anchor)
-        #         try:
-        #             self.fog_batch.add(sprite, z=-k.r, name=f"{k.q}_{k.r}_{k.s}")
-        #         except Exception:
-        #             pass
-        #     else:
-        #         try:
-        #             self.fog_batch.remove(f"{k.q}_{k.r}_{k.s}")
-        #         except Exception:
-        #             pass
-        #     self.add(self.fog_batch)  # Todo: figure out why fog drawing is so slow.
-        # print("draw fog done.")
+
+        self.fog_batch.children = []
+        viewport_hexes = scroller.visible_hexes
+        for k in viewport_hexes:
+            h = terrain_map.hexagon_map[k]
+            if h.visible == 0:
+                pass
+                position = hex_math.hex_to_pixel(layout, k, False)
+                anchor = sprite_width / 2, sprite_height / 2
+                sprite_id = "fog"
+                sprite = Sprite(sprite_images[sprite_id], position=position, anchor=anchor)
+                try:
+                    self.fog_batch.add(sprite, z=-k.r, name=f"{k.q}_{k.r}_{k.s}")
+                except Exception:
+                    pass
+            else:
+                try:
+                    self.fog_batch.remove(f"{k.q}_{k.r}_{k.s}")
+                except Exception:
+                    pass
+        self.add(self.fog_batch)
 
 
 class OverlayLayer(ScrollableLayer):