save project

snake.py

+import pygame
+from pygame import locals
+
+# 初始化pygame，为使用硬件做准备
+pygame.init()
+
+# 创建一个窗口
+screen = pygame.display.set_mode((660, 480))
+
+# 背景
+background = pygame.image.load('bg.png')
+right = pygame.image.load('right.png')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.png')
+
+food = pygame.image.load('apple.png')
+body = pygame.image.load('body.png')
+x=240
+y=120
+a=[(180,90),(180,120),(210,120),(x,y)]
+heading="right"
+snake_head=right
+Fps=pygame.time.Clock()
+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  heading!="left":
+                heading="right"
+                snake_head=right    
+            if event.key==locals.K_LEFT and  heading!="right" :     
+                heading="left"
+                snake_head=left
+            if event.key==locals.K_UP and  heading!="down":
+                heading="up"
+                snake_head=up
+            if event.key==locals.K_DOWN and  heading!="up": 
+                heading="down"
+                snake_head=down       
+    # 将背景图画上去
+  
+    screen.blit(background, (0, 0))
+    # 将贪吃蛇画上去
+    screen.blit(snake_head, (x,y))
+    if heading=="right":
+        x+=30
+    elif heading=="left":
+        x-=30
+    elif heading=="up":
+        y-=30
+    else:
+        y+=30
+
+    # 将贪吃蛇的身体画上去
+    for i in range(len(a)-1):
+        screen.blit(body,a[i])
+    # 将果实画上去
+    screen.blit(food, (360, 300))
+    a.append((x,y))
+    a.pop(0)
+    # 刷新画面
+    pygame.display.update()
+    
+    Fps.tick(3)
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