auto save

snake.py

 import pygame
 import pygame
 from pygame import locals
 from pygame import locals
-
+import random   #导入了随机模块
 # 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((630, 450))
+FPSCLOCK = pygame.time.Clock() #控制游戏速度
 
 
 # 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')       #头朝右
 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)
+
+
+x,y = 240,120 
+position = [(180,90),(180,120),(210,120),(x,y)]
+
+setheading = 'right'
+snake_head = right
+apple_x = 360 #苹果的X坐标
+apple_y = 300 #苹果的Y坐标
 
 
 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()
+        elif 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
+
+    #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))
+    #贪吃蛇碰到了苹果
+    if x == apple_x and y == apple_y:
+        num1 = random.randint(1,22) #横格数
+        num2= random.randint(1,16) #横格数
+        apple_x = 30 * num1 - 30
+        apple_y = 30 * num2 - 30
+        score += 5 #每吃一次苹果加五分
+    else:
+        position.pop(0)
+    #贪吃蛇撞墙
+    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(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))
+    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, (apple_x,apple_y)) #300
+
+    #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()
+    FPSCLOCK.tick(3)
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