save project

snake.py

@@ -4,26 +4,53 @@ 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))
 FPSCLOCK = pygame.time.Clock()
 
+screen = pygame.display.set_mode((660, 480))
+
 # 背景
 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_UP and setheading != "down"
+                setheading='up'
+                snake_head=up
+            if event.key==locals.K_DOWN and setheading != "up"
+                setheading='down'
+                snake_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.pop(0)
     # 将背景图画上去
@@ -35,9 +62,10 @@ while True:
     # 将贪吃蛇的身体画上去899-
     #screen.blit(body, (210, 120))
     #screen.blit(body, (180, 120))
+    
     #screen.blit(body, (180, 90))
     # 将果实画上去
-    #screen.blit(food, (360, 300))
+    screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)