save project

snake.py

@@ -13,9 +13,14 @@ 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"
+sanke_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:
@@ -23,7 +28,30 @@ while True:
             # 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="right"  
+                sanke_head=right
+            if event.key == locals.K_LEFT and setheading != "right" :
+                setheading="left"  
+                sanke_head=left
+            if event.key == locals.K_up and setheading != "down" :
+                setheading="up"  
+                sanke_head=up
+            if event.key == locals.K_DOWN and setheading != "up" :
+                setheading="down"  
+                sanke_head=down
+
+    if setheading == "right":
+       x += 30
+    elif setheading == "left":
+        x -= 30
+    elif setheading == "up":
+        y -= 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