save project

snake.py

@@ -6,27 +6,66 @@ pygame.init()
 
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
-
+FPS = pygame.time.Clock()
 # 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')
+x,y=240,120
+pos = [(180,90),(180,120),(210,120),(x,y)]
+setheading="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" 
+            if event.key==locals.K_LEFT and setheading!="right":
+               setheading="left" 
+            if event.key==locals.K_UP and setheading!="down":
+               setheading="up" 
+            if event.key==locals.K_DOWN and setheading!="up":
+               setheading="down" 
+    
+    if setheading == "right":
+        x+=30
+    if setheading == "left":
+        x-=30
+    if setheading == "up":
+        y-=30
+    if setheading == "down":
+        y+=30   
+    pos.append((x,y))
+    pos.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
+    screen.blit(right, (x, y))
     # 将贪吃蛇的身体画上去
-    screen.blit(body, (210, 120))
-    screen.blit(body, (180, 120))
-    screen.blit(body, (180, 90))
+    for i in range(len(pos)-1):
+        screen.blit(body, pos[i])
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
-    pygame.display.update()
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+    pygame.display.update()
+    FPS.tick(2)
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