这篇文章主要为大家展示了“基于Pygame如何实现简单的贪吃蛇游戏”，内容简而易懂，条理清晰，希望能够帮助大家解决疑惑，下面让小编带领大家一起研究并学习一下“基于Pygame如何实现简单的贪吃蛇游戏”这篇文章吧。
import pygame, sys, random from pygame.locals import *
设置屏幕大小为400*400，mainClock = pygame.time.Clock()用来设置时间同步，不会根据计算机的运行来决定运行多少次， mainClock.tick(1) 一秒只会运行一次，设置了屏幕的底色为白色。
# 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)
这里设置了贪吃蛇的长度和起始位置，和食物和蛇的宽度，这里必须设置为可以被食物和蛇的宽度整除的数，这样才能保证蛇能到任意的位置
# 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)
这里将蛇列表最后一位移除，然后将第一位的位置根据方向加减坐标
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)
这样会有一个问题，如果超出屏幕呢，我们将超出屏幕，那么就会消失，我们只需要你移动第一个元素的时候，如果超出则将元素移动另一个位置。
# 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
为了实现对应的功能，我们将方向变量改为一个变量，这样我们方便修改方向
# 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"
为了方便看到效果，我将mainClock.tick(1) 设置为mainClock.tick(3)
这里用了很啰嗦的代码，我自己也看不下去，有点含糊，这里为了简单只设计了一个食物，遍历屏幕上不是贪吃蛇的可以放食物的集合，然后随机生成一个食物。
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))
这里用 colliderect判断二者是否相撞，然后食物集合置空，不减去贪吃蛇集合的最后一个元素。
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)以上是“基于Pygame如何实现简单的贪吃蛇游戏”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注亿速云行业资讯频道！
免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。
