auto save

snake.py

@@ -4,24 +4,42 @@ from pygame import locals
 # 初始化pygame，为使用pygame做准备
 pygame.init()
 
+# 创建一个窗口
+screen = pygame.display.set_mode((660,480))
+
+FPSCLOCK = pygame.time.Clock()
 
 background = pygame.image.load("bg.png")
 right = pygame.image.load("right.png") 
 food = pygame.image.load("apple.png")
 body = pygame.image.load("body.png")
-# 创建一个窗口
-screen = pygame.display.set_mode((660,480))
+
+x,y = 240,120
+position = [(180,90),(180,120),(210,120),(x,y)]
+
+setheading = "right"
 
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
+        if event.type == locals.KEYDOWN:
+            if event.key == K_RIGHT and setheading != "left":
+                setheading = "right"
+            if event.key == K_LEFT and setheading != "right":
+                setheading = "left"
+            if event.key == K_UP and setheading != "down":
+                setheading = "up"
+            if event.key == K_DOWN and setheading != "up":
+                setheading = "down"
+    x += 30
+    position.append((x,y))
+    position.pop(0)
 
     screen.blit(background,(0,0))
-    screen.blit(right,(240,120))
+    screen.blit(right,position[-1])
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
     screen.blit(food,(360,300))
-    screen.blit(body,(210,120))
-    screen.blit(body,(180,120))
-    screen.blit(body,(180,90))
- 
-    pygame.display.update()
\ No newline at end of file
+    pygame.display.update()
+    FPSCLOCK.tick(3)
\ No newline at end of file