auto save

snake.py

 import pygame
 import pygame
 from pygame import locals
 from pygame import locals
-
+import random
 # 初始化pygame，为使用硬件做准备
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 pygame.init()
 
 
 # 创建一个窗口
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 screen = pygame.display.set_mode((660, 480))
-
+FPSCLOCK=pygame.time.Clock()#控制游戏速度（帧数）
 # 背景
 # 背景
 background = pygame.image.load('bg.png')
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.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')
+my_font=pygame.font.Font('neuropol.ttf',18)#字体对象
+x,y=240,120
+position=[(180,90),(180,120),(210,120),(x,y)]
+#苹果坐标
+apple_x=360
+apple_y=300
+setheading='right'
+snake_head=right
+score=0   #分数
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
+        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':
+                setheading='up'
+                snake_head=up
+            if event.key==locals.K_DOWN and setheading!='up':
+                setheading='down'
+                snake_head=down
+
+    #x+=30
+    #设置贪吃蛇的头部坐标
+    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)
+    #贪吃蛇吃到苹果
+    if x==apple_x and y==apple_y:
+        # apple_x=random.randint(0,660)
+        # apple_y=random.randint(0,480)
+        score=score+10
+        num1=random.randint(1,22)#横排第几个格子
+        num2=random.randint(1,16)#竖排第几个格子
+        apple_x=30*num1-30
+        apple_y=30*num2-30
+    else:
+        position.pop(0)
+    #判断贪吃蛇是否撞墙
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
+
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
+    #screen.blit(right, (210, 120))
+    #screen.blit(right, (x,y))
+    #screen.blit(right, position[-1])
+    #根据朝向不同切换头的造型，改变朝向
+    screen.blit(snake_head, position[-1])
     # 将贪吃蛇的身体画上去
     # 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))
+    # screen.blit(body, (210, 120))
+    # screen.blit(body, (180, 120))
+    # screen.blit(body, (180, 90))
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
+        
     # 将果实画上去
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    #screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x, apple_y))
+    #绘制分数
+    info='score'+str(score)
+    text=my_font.render(info,True,(0,0,0))
+    screen.blit(text,(540,10))
     # 刷新画面
     # 刷新画面
-    pygame.display.update()
+    pygame.display.update()
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+    FPSCLOCK.tick(3)
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