save project

snake.py

@@ -5,6 +5,7 @@ from pygame import locals
 pygame.init()
 
 # 创建一个窗口
+
 screen = pygame.display.set_mode((660, 480))
 FPSCLOCK=pygame.time.Clock()
 
@@ -13,24 +14,50 @@ 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')
 
 x, y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
-
+setheading='right'
+snake_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()
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and setheading !='left':
+                setheading='right'
+                snake_head=right
+            if event.key==locals.K_LEFT and setheading !='right':
+                setheading='left'
+                snake_head=left
+            if event.key==locals.K_DOWN and setheading !='up':
+                setheading='down'
+                snake_head=down
+            if event.key==locals.K_UP and setheading !='down':
+                setheading='up'
+                snake_head=up
+if setheading=='right':
     x+=30
+if setheading=='left':
+    x-=30
+if setheading=='up':
+    y-=30
+else:
+    y+=30
+
     position.append((x,y))
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
+
     # 将贪吃蛇画上去
 
 
-    screen.blit(right,position[-1])
+    screen.blit(snake_head,position[-1])
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body,position[i])
@@ -39,4 +66,5 @@ while True:
     screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()
+
     FPSCLOCK.tick(3)