diff --git a/resources/graphics/Items/Background/Background_7.jpg b/resources/graphics/Items/Background/Background_7.jpg
new file mode 100644
index 0000000..3af35ed
Binary files /dev/null and b/resources/graphics/Items/Background/Background_7.jpg differ
diff --git a/resources/graphics/Items/Background/Background_8.jpg b/resources/graphics/Items/Background/Background_8.jpg
new file mode 100644
index 0000000..c776c10
Binary files /dev/null and b/resources/graphics/Items/Background/Background_8.jpg differ
diff --git a/source/component/map.py b/source/component/map.py
index 12c9875..b871dae 100755
--- a/source/component/map.py
+++ b/source/component/map.py
@@ -7,6 +7,8 @@ from copy import deepcopy
 class Map():
     def __init__(self, background_type):
         self.background_type = background_type
+        # 注意：从0开始编号
+        # 集合内容需要deepcopy
         if self.background_type in {c.BACKGROUND_POOL, c.BACKGROUND_FOG}:
             self.width = c.GRID_POOL_X_LEN
             self.height = c.GRID_POOL_Y_LEN
@@ -15,6 +17,14 @@ class Map():
             self.width = c.GRID_ROOF_X_LEN
             self.height = c.GRID_ROOF_Y_LEN
             self.map = [[deepcopy(c.MAP_STATE_TILE) for x in range(self.width)] for y in range(self.height)]
+        elif self.background_type == c.BACKGROUND_SINGLE:
+            self.width = c.GRID_X_LEN
+            self.height = c.GRID_Y_LEN
+            self.map = [[(deepcopy(c.MAP_STATE_UNAVAILABLE), deepcopy(c.MAP_STATE_EMPTY))[y == 2] for x in range(self.width)] for y in range(self.height)]
+        elif self.background_type == c.BACKGROUND_TRIPLE:
+            self.width = c.GRID_X_LEN
+            self.height = c.GRID_Y_LEN
+            self.map = [[(deepcopy(c.MAP_STATE_UNAVAILABLE), deepcopy(c.MAP_STATE_EMPTY))[y in {1, 2, 3}] for x in range(self.width)] for y in range(self.height)]
         else:
             self.width = c.GRID_X_LEN
             self.height = c.GRID_Y_LEN
diff --git a/source/state/level.py b/source/state/level.py
index b94f360..c96178c 100644
--- a/source/state/level.py
+++ b/source/state/level.py
@@ -445,7 +445,7 @@ class Level(tool.State):
         if map_y == None:
             # 情况复杂：分水路和陆路，不能简单实现，需要另外加判断
             # 0, 1, 4, 5路为陆路，2, 3路为水路
-            if self.map_data[c.BACKGROUND_TYPE] in {2, 3}:
+            if self.map_data[c.BACKGROUND_TYPE] in {c.BACKGROUND_POOL, c.BACKGROUND_FOG}:
                 if name in {}:  # 这里还没填，以后加了泳池模式填：水生僵尸集合
                     map_y = randint(2, 3)
                 elif name == '这里应该换成气球僵尸的名字（最好写调用的变量名，最好不要直接写，保持风格统一）':
@@ -454,6 +454,10 @@ class Level(tool.State):
                     map_y = randint(0, 3)
                     if map_y >= 2:   # 后两路的map_y应当+2
                         map_y += 2
+            elif self.map_data[c.BACKGROUND_TYPE] == c.BACKGROUND_SINGLE:
+                map_y = 2
+            elif self.map_data[c.BACKGROUND_TYPE] == c.BACKGROUND_TRIPLE:
+                map_y = randint(1, 3)
             else:
                 map_y = randint(0, 4)