save project

snake.py

 import pygame
 from pygame import locals
-
+import random
 # 初始化pygame，为使用硬件做准备
 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）
-
+FPSCLOCK=pygame.time.Clock()
 # 背景
 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
-
-x, y = 240, 120
-position = [(180, 90), (180, 120), (210, 120), (x, y)]
-
-setheading = "right"
-snake_head = right
-
+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=240
+y=120
+apple_x=360
+apple_y=300
+list=[(180,90),(180,120),(210,120),(x,y)]
+heading = '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'
-                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
+            if event.key==locals.K_UP and heading != 'down':   #向上
+                heading='up'
+            if event.key==locals.K_LEFT and heading != 'right':        #向左
+                heading='left'
+            if event.key==locals.K_RIGHT and heading != 'left':     #向右
+                heading='right'
+            if event.key==locals.K_DOWN and heading != 'up':     #向下
+                heading='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))
-    position.pop(0)
+        if event.type == locals.QUIT:      
+            # 接收到退出事件后退出程序
+            exit()
     # 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])
+    # 将贪吃蛇画上去
+    if heading=='up':
+        y-=30
+        if y<0:
+            y=480
+    if heading=='down':
+        y+=30
+        if y>480:
+            y=0
+    if heading=='right':
+        x+=30
+        if x>660:
+            x=0
+    if heading=='left':
+        x-=30
+        if x<0:
+            x=660
+    #增加坐标
+    list.append((x,y))
+    well=list[0]
+    list2=list
+    list.pop(0)
+    #判断头是否碰到身体
+    for i in range(len(list)-1):
+        if list[i]==(x,y):
+            exit()
+    #判断方向
+    if heading=='up':
+        screen.blit(up, (x, y))
+    if heading=='down':
+        screen.blit(down, (x, y))
+    if heading=='right':
+        screen.blit(right, (x, y))
+    if heading=='left':
+        screen.blit(left, (x, y))
     # 将贪吃蛇的身体画上去
-    for i in range(len(position)-1):
-        screen.blit(body, position[i])
-
+    for cs in range(len(list)-1):
+        screen.blit(body, list[cs])
+    #贪吃蛇的头碰到苹果
+    if apple_x==x and apple_y==y:        
+        apple_x=random.randint(0,21)*30
+        apple_y=random.randint(0,15)*30
+        list=[well,]
+        for yyy in list2:
+            list.append(yyy)
+    # print(list)      用于检测错误
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x, apple_y))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
\ No newline at end of file
+    zhenlv=len(list)/4
+    FPSCLOCK.tick(zhenlv+1)
\ No newline at end of file