save project

snake.py

@@ -13,6 +13,11 @@ 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')
+setheading ='right'
+snake_head = right
 x,y = 240,120
 x,y = 240,120
 a = [(180,90),(180,120),(210,120),(240,120),(x,y)]
 a = [(180,90),(180,120),(210,120),(240,120),(x,y)]
 while True:
 while True:
@@ -23,6 +28,27 @@ while True:
         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()
+        if event.type == locals.QUIT:
+            if event.key == locals.K__RIGHT and setheading !='left':
+                setheading = 'right'
+                setheading = right
+            if event.key == locals.K__LEFT and setheading !='right':
+                setheading = 'left'
+                setheading = left
+            if event.key == locals.K__UP and setheading !='down':
+                setheading = 'up'
+                setheading = up
+            if event.key == locals.K__DOWN and setheading !='up':
+                setheading = 'down'
+                setheading = down
+    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
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去