save project

snake.py

@@ -5,6 +5,7 @@ from pygame import locals
 pygame.init()
 
 # 创建一个窗口
+FPSCLOCK=pygame.time.Clock()
 screen = pygame.display.set_mode((660, 480))
 
 # 背景
@@ -12,18 +13,42 @@ 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')
+body = pygame.image.load('left.png')
+body = pygame.image.load('up.png')
+body = pygame.image.load('down.png')
 FPSCLOCK=pygame.time.Clock()
 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()
-    x+=30
+        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":
+                seteading="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