save project

snake.py

@@ -5,18 +5,57 @@ from pygame import locals
 pygame.init()
 
 # 创建一个窗口
+FPS=pygame.time.Clock()
 screen=pygame.display.set_mode((800,600))
 background=pygame.image.load("bg.png")
 apple=pygame.image.load("apple.png")
+right=pygame.image.load("right.png")
+left=pygame.image.load("left.png")
+down=pygame.image.load("down.png")
+up=pygame.image.load("up.png")
 
+x=240
+y=120
+
+position=[(180,90),(180,120),(210,120),(x,y)]
 body=pygame.image.load("body.png")
+
+fangxiang="right"
+tou=right
+
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and fangxiang !="left":
+                fangxiang="right"
+                tou=right
+            if event.key == locals.K_LEFT and fangxiang !="right":
+                fangxiang="left"
+                tou=left 
+            if event.key == locals.K_DOWN and fangxiang !="up":
+                fangxiang="down"
+                tou=down
+            if event.key == locals.K_UP and fangxiang !="down":
+                fangxiang="up"
+                tou=up
+
+    if fangxiang == "right":
+        x+=30
+    if fangxiang == "left":
+        x-=30
+    if fangxiang == "down":
+        y+=30
+    if fangxiang == "up":
+        y-=30
+
+    position.append((x,y))
+    position.pop(0)
     screen.blit(background,(0,0))
     screen.blit(apple,(60,90))
-    screen.blit(body,(210,120))
-    screen.blit(body,(180,120))
-    screen.blit(body,(150,120))   
+    screen.blit(tou, position[-1])
+    for i in range(len(position)-1):
+        screen.blit(body, position[i])
     pygame.display.update()      
+    FPS.tick(3)
\ No newline at end of file