diff --git a/source/component/map.py b/source/component/map.py
index 11af345..efb8e73 100755
--- a/source/component/map.py
+++ b/source/component/map.py
@@ -155,12 +155,12 @@ class Map():
         elif self.background_type in c.ON_ROOF_BACKGROUNDS:
             x -= c.MAP_ROOF_OFFSET_X
             y -= c.MAP_ROOF_OFFSET_X
-            gridX = x // c.GRID_ROOF_X_SIZE
-            if gridX >= 5:
-                gridY = y // c.GRID_ROOF_Y_SIZE
+            grid_x = x // c.GRID_ROOF_X_SIZE
+            if grid_x >= 5:
+                grid_y = y // c.GRID_ROOF_Y_SIZE
             else:
-                gridY = (y - 20*(6 - gridX)) // 85
-            return (gridX, gridY)
+                grid_y = (y - 20*(6 - grid_x)) // 85
+            return (grid_x, grid_y)
         else:
             x -= c.MAP_OFFSET_X
             y -= c.MAP_OFFSET_Y
diff --git a/source/constants.py b/source/constants.py
index 66d8c54..2e7a596 100755
--- a/source/constants.py
+++ b/source/constants.py
@@ -376,7 +376,7 @@ PLANT_CARD_INFO = (# 元组 (植物名称, 卡片名称, 阳光, 冷却时间)
             )
 
 # 卡片中的植物名称与索引序号的对应关系，指定名称以得到索引值
-PLANT_CARD_INDEX={item[PLANT_NAME_INDEX]: index for (index, item) in enumerate(PLANT_CARD_INFO)}
+PLANT_CARD_INDEX = {item[PLANT_NAME_INDEX]: index for (index, item) in enumerate(PLANT_CARD_INFO)}
 
 # 指定了哪些卡可选（排除坚果保龄球特殊植物）
 CARDS_TO_CHOOSE = range(len(PLANT_CARD_INFO) - 3)