save project

snake.py

@@ -5,8 +5,8 @@ from pygame import locals
 pygame.init()
 pygame.init()
 x,y=240,140
 x,y=240,140
 position = [(180, 90),(180, 120),(210, 120),(x,y)]
 position = [(180, 90),(180, 120),(210, 120),(x,y)]
-
-
+setheading="right"
+snake_head=right
 
 
 # 创建一个窗口
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 screen = pygame.display.set_mode((660, 480))
@@ -16,11 +16,35 @@ 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')
 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
             exit()
             exit()
+            if event.type == locals.KEYDOWN:
+            if event.type == locals.K_RIGHT and setheading !="left"
+                setheading="right"
+                snake_head="right"
+            if event.type == locals.K_LEFT and setheading !="right"
+                setheading="left"
+                snake_head="left"
+            if event.type == locals.K_UP and setheading !="down"
+                setheading="up"
+                snake_head="up"
+            if event.type == locals.K_DOWN and setheading !="up"
+                setheading="down"
+                snake_head="down"
+            # 接收到退出事件后退出程序
+    if setheading == "right"
+        x+=30        
+    elif setheading == "left" 
+        x-=30
+    elif setheading == "up"
+        y-=30
+    else:
+        y+=30
     # 将背景图画上去
     # 将背景图画上去
     x+=30
     x+=30
     position.append((x,y))
     position.append((x,y))