大蟒蛇python教程共享基于Pygame实现简单的贪吃蛇游戏

目录

• 导入相关的包
• 设置屏幕大小以及基本参数
• 设置贪吃蛇的位置，以及移动的大小
• 绘制蛇
• 让蛇动起来
• 实现贪吃蛇拐弯
• 实现随机食物
• 吃食物
• 完整代码 

  import pygame, sys, random  from pygame.locals import *

  # 定义屏幕的宽高  width = 400  height = 400  # 初始化屏幕 设置窗口标题  surface = pygame.display.set_mode((width, height), 0, 32)  pygame.display.set_caption('贪吃蛇')    pygame.init()  mainclock = pygame.time.clock()    # 定义使用的颜色  black = (0, 0, 0)  green = (0, 255, 0)  white = (255, 255, 255)      while true:      for event in pygame.event.get():          if event.type == quit:              pygame.quit()              sys.exit()        surface.fill(white)      pygame.display.update()      mainclock.tick(1)  

  # 设置蛇的初始长度  snakewidth = 4  # 设置蛇的起始位置为（40，40）  snakex = 40  snakey = 40  # 食物和蛇的宽度设置为8  foodsnakewidth = 8  # 定义四个方向  moveleft = false  moveright = false  moveup = false  movedown = false  # 定义初始的方向  moveright = true      def getsnake():      # 设置蛇的初始长度为4,并设置蛇的初始位置为(40,40)      # 因为贪吃蛇会拐弯，所以将蛇设置为一个列表      snake = []      for i in range(snakewidth):          snake.append(pygame.rect(snakex + i * foodsnakewidth, snakey, foodsnakewidth, foodsnakewidth))      return snake      # 贪吃蛇  snake = getsnake()  

  surface.fill(white)  for s in snake:      pygame.draw.rect(surface, black, s)  

      snake.pop()      newtop = copy.deepcopy(snake[0])      # 改变蛇的位置      if moveright:          newtop.left += foodsnakewidth      if moveleft:          newtop.left -= foodsnakewidth      if moveup:          newtop.top -= foodsnakewidth      if movedown:          newtop.top += foodsnakewidth        snake.insert(0, newtop)  

      # 改变蛇的位置      if moveright:          if newtop.right == width:              newtop.left = 0          else:              newtop.left += foodsnakewidth      if moveleft:          if newtop.left == 0:              newtop.right == width          else:              newtop.left -= foodsnakewidth      if moveup:          if newtop.top == 0:              newtop.bottom = height          else:              newtop.top -= foodsnakewidth      if movedown:          if newtop.bottom == height:              newtop.top = 0          else:              newtop.top += foodsnakewidth  

  # 定义四个方向  # moveleft moveright moveup movedown  # 定义初始的方向  snakedirection = "moveright"    ----    省略的代码    ----      for event in pygame.event.get():          if event.type == quit:              pygame.quit()              sys.exit()          if event.type == keydown:              if event.key == k_left:                  if snakedirection == "moveright":                      snake.reverse()                  snakedirection = "moveleft"              if event.key == k_right:                  if snakedirection == "moveleft":                      snake.reverse()                  snakedirection = "moveright"              if event.key == k_up:                  if snakedirection == "movedown":                      snake.reverse()                  snakedirection = "moveup"              if event.key == k_down:                  if snakedirection == "moveup":                      snake.reverse()                  snakedirection = "movedown"  

      if len(foods) < foodnum:            canfoodcoll = []          # 获取当前不是贪吃蛇的位置集合          for x in range(sizenum):              for y in range(sizenum):                  foodexist = true                  for sn in snake:                      if x * foodsnakewidth == sn.left and y * foodsnakewidth == sn.top:                          foodexist = false                          break                  if foodexist:                      canfoodcoll.append({'x': x, 'y': y})          f = canfoodcoll[random.randint(0, len(canfoodcoll))]          foods.append(pygame.rect(f['x'], f['y'], foodsnakewidth, foodsnakewidth))  

      if len(foods) < foodnum:            canfoodcoll = []          # 获取当前不是贪吃蛇的位置集合          for x in range(sizenum):              for y in range(sizenum):                  foodexist = true                  for sn in snake:                      if x * foodsnakewidth == sn.left and y * foodsnakewidth == sn.top:                          foodexist = false                          break                  if foodexist:                      canfoodcoll.append({'x': x, 'y': y})          f = canfoodcoll[random.randint(0, len(canfoodcoll))]          foods.append(pygame.rect(f['x'] * foodsnakewidth, f['y'] * foodsnakewidth, foodsnakewidth, foodsnakewidth))          print(f['x'])          print(f['y'])      else:          if newtop.colliderect(foods[0]):              foods = []              eatflg = true          print('xxx')  

  import pygame, sys, random  from pygame.locals import *  import copy    # 定义屏幕的宽高  width = 400  height = 400  # 初始化屏幕 设置窗口标题  surface = pygame.display.set_mode((width, height), 0, 32)  pygame.display.set_caption('贪吃蛇')    pygame.init()  mainclock = pygame.time.clock()    # 定义使用的颜色  black = (0, 0, 0)  green = (0, 255, 0)  white = (255, 255, 255)    # 设置蛇的初始长度  snakewidth = 4  # 设置蛇的起始位置为（40，40）  snakex = 40  snakey = 40  # 食物和蛇的宽度设置为8  foodsnakewidth = 8  # 定义四个方向  # moveleft moveright moveup movedown  # 定义初始的方向  snakedirection = "moveright"    # 食物区间  foods = []  # 用去宽度处以对应的 大小，减去1 就是食物矩形起点可以存在的区间  #sizenum = height / foodsnakewidth - 1  # 这里为了减少计算  sizenum = 39  # 为了简单我们只设置一个食物  foodnum = 1      def getsnake():      # 设置蛇的初始长度为4,并设置蛇的初始位置为(40,40)      # 因为贪吃蛇会拐弯，所以将蛇设置为一个列表      snake = []      for i in range(snakewidth):          snake.append(pygame.rect(snakex + i * foodsnakewidth, snakey, foodsnakewidth, foodsnakewidth))      return snake      # 贪吃蛇  snake = getsnake()    while true:        for event in pygame.event.get():          if event.type == quit:              pygame.quit()              sys.exit()          if event.type == keydown:              if event.key == k_left:                  if snakedirection == "moveright":                      snake.reverse()                  snakedirection = "moveleft"              if event.key == k_right:                  if snakedirection == "moveleft":                      snake.reverse()                  snakedirection = "moveright"              if event.key == k_up:                  if snakedirection == "movedown":                      snake.reverse()                  snakedirection = "moveup"              if event.key == k_down:                  if snakedirection == "moveup":                      snake.reverse()                  snakedirection = "movedown"      surface.fill(white)      for s in snake:          pygame.draw.rect(surface, black, s)      for f in foods:          pygame.draw.rect(surface, green, f)      pygame.display.update()          # 是否吃了食物      eatflg = false        newtop = copy.deepcopy(snake[0])      # 改变蛇的位置      if snakedirection == "moveright":          if newtop.right == width:              newtop.left = 0          else:              newtop.left += foodsnakewidth      if snakedirection == "moveleft":          if newtop.left == 0:              newtop.right = width          else:              newtop.left -= foodsnakewidth      if snakedirection == "moveup":          if newtop.top == 0:              newtop.bottom = height          else:              newtop.top -= foodsnakewidth      if snakedirection == "movedown":          if newtop.bottom == height:              newtop.top = 0          else:              newtop.top += foodsnakewidth        if len(foods) < foodnum:            canfoodcoll = []          # 获取当前不是贪吃蛇的位置集合          for x in range(sizenum):              for y in range(sizenum):                  foodexist = true                  for sn in snake:                      if x * foodsnakewidth == sn.left and y * foodsnakewidth == sn.top:                          foodexist = false                          break                  if foodexist:                      canfoodcoll.append({'x': x, 'y': y})          f = canfoodcoll[random.randint(0, len(canfoodcoll))]          foods.append(pygame.rect(f['x'] * foodsnakewidth, f['y'] * foodsnakewidth, foodsnakewidth, foodsnakewidth))          print(f['x'])          print(f['y'])      else:          if newtop.colliderect(foods[0]):              foods = []              eatflg = true          print('xxx')            snake.insert(0, newtop)      if not eatflg:          snake.pop()        mainclock.tick(3)