save project

snake.py

@@ -14,15 +14,41 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 body = pygame.image.load('body.png')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.png')
 x, y = 240, 120
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 
+setheading = "right"
+snake_head = right
+
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
-    x += 30
+        elif event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and setheading !="left":
+                setheading = 'righy'
+                enake_head = right
+            if event.key == locals.K_LEFT and setheading !="right":
+                setheading = 'left'
+                enake_head = left
+            if event.key == locals.K_UP and setheading !="down":
+                setheading = 'up'
+                enake_head = up
+            if event.key == locals.K_DOWN and setheading !="up":
+                setheading = 'down'
+                enake_head = down
+        if setheading =="right":
+            x += 30
+        elif setheading =="left":
+            x -= 30
+        elif setheading =="up":
+            x -= 30
+        else:
+            y += 30
     position.append((x, y))
     position.append((x, y))
     position.pop(0)
     position.pop(0)
     # 将背景图画上去
     # 将背景图画上去