save project

snake.py

@@ -14,21 +14,46 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.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')
 Time = pygame.time.Clock()
 x, y = 240, 120
+setheading ='right'
+snak_head = right
 
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
-    x+=30
+        elif event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and setheading != 'left':
+                setheading = 'right'
+                snak_head = right
+            if event.key == locals.K_LEFT and setheading != 'right':
+                setheading = 'left'
+                snak_head = left
+            if event.key == locals.K_UP and setheading != 'up':
+                setheading = 'down'
+                snak_head = down
+            if event.key == locals.K_DOWN and setheading != 'down':
+                setheading = 'up'
+                snak_head = up
+    if setheading == 'right':
+        x+=30
+    if setheading == 'left':
+        x-=30
+    if setheading == 'up':
+        y-=30      
+    if setheading == 'down':
+        y+=30
     List.append((x,y))
     List.pop(0)  
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (x, y))
+    screen.blit(snak_head,List[-1])
     # 将贪吃蛇的身体画上去
     #screen.blit(body, (210, 120))
     #screen.blit(body, (180, 120))