save project

snake.py

 import pygame
 from pygame import locals
-
-# 初始化pygame，为使用硬件做准备
+from random import *
 pygame.init()
-
-# 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
-FPSCLOCK = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
-
-# 背景
+FPSCLOCK = pygame.time.Clock()
 background = pygame.image.load('bg.png')
-right = pygame.image.load('right.png')      # 头 朝右
-food = pygame.image.load('apple.png')       # 食物 苹果
-body = pygame.image.load('body.png')        # 身体
-left = pygame.image.load('left.png')        # 头 朝左
-up = pygame.image.load('up.png')            # 头 朝上
-down = pygame.image.load('down.png')        # 头 朝下
-
+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
-
+apple_x = randint(0,630)
+apple_y = randint(0,430)
+while apple_x%30!=0 or apple_y%30!=0:
+    apple_x = randint(0,630)
+    apple_y = randint(0,430)
 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":
@@ -41,8 +37,6 @@ while True:
             if event.key == locals.K_DOWN and setheading != "up":
                 setheading = 'down'
                 snake_head = down
-
-    # 设置贪吃蛇的头部坐标
     if setheading == "right":
         x += 30
     elif setheading == "left":
@@ -51,18 +45,18 @@ while True:
         y -= 30
     else:
         y += 30
+    if x==apple_x and y==apple_y:
+        apple_x = randint(0,630)
+        apple_y = randint(0,430)
+        while apple_x%30!=0 or apple_y%30!=0:
+            apple_x = randint(0,630)
+            apple_y = randint(0,430)
     position.append((x, y))
     position.pop(0)
-    # 将背景图画上去
     screen.blit(background, (0, 0))
-    # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])
-    # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
-
-    # 将果实画上去
-    screen.blit(food, (360, 300))
-    # 刷新画面
+    screen.blit(food, (apple_x, apple_y))
     pygame.display.update()
     FPSCLOCK.tick(3)
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