用pygame写一个大富翁游戏

好的，下面是一个简单的大富翁游戏示例代码，需要用到pygame库：

import pygame
import random

# 初始化pygame
pygame.init()

# 定义常量
WIDTH = 800
HEIGHT = 600
FPS = 30
TITLE = "Monopoly"
FONT_SIZE = 32

# 定义颜色
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)

# 创建游戏窗口
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption(TITLE)
clock = pygame.time.Clock()

# 设置字体
font = pygame.font.Font(None, FONT_SIZE)

# 创建玩家
class Player(pygame.sprite.Sprite):
    def __init__(self, color, x, y, money):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface((50, 50))
        self.image.fill(color)
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        self.money = money

    def update(self):
        # 玩家移动
        keys = pygame.key.get_pressed()
        if keys[pygame.K_LEFT]:
            self.rect.x -= 5
        if keys[pygame.K_RIGHT]:
            self.rect.x += 5
        if keys[pygame.K_UP]:
            self.rect.y -= 5
        if keys[pygame.K_DOWN]:
            self.rect.y += 5

    def draw_money(self):
        # 绘制玩家资产
        text = font.render(str(self.money), True, BLACK)
        screen.blit(text, (self.rect.x, self.rect.y - FONT_SIZE))

# 创建地图
class Map(pygame.sprite.Sprite):
    def __init__(self, color, x, y, width, height):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface((width, height))
        self.image.fill(color)
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y

# 创建房产
class Property(pygame.sprite.Sprite):
    def __init__(self, color, x, y, price, rent):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface((50, 50))
        self.image.fill(color)
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        self.price = price
        self.rent = rent
        self.owner = None

    def update(self):
        # 判断是否有玩家到达房产位置
        if player.rect.colliderect(self.rect):
            if self.owner is None:
                # 询问是否购买
                if pygame.mouse.get_pressed()[0]:
                    if player.money >= self.price:
                        player.money -= self.price
                        self.owner = player
            elif self.owner != player:
                # 支付租金
                player.money -= self.rent
                self.owner.money += self.rent

    def draw_price(self):
        # 绘制房产价格
        text = font.render(str(self.price), True, BLACK)
        screen.blit(text, (self.rect.x, self.rect.y - FONT_SIZE))

    def draw_owner(self):
        # 绘制房产所有者
        if self.owner is not None:
            text = font.render(str(self.owner.money), True, BLACK)
            screen.blit(text, (self.rect.x, self.rect.y + 50))

# 创建游戏元素
all_sprites = pygame.sprite.Group()
map = Map(WHITE, 0, 0, WIDTH, HEIGHT)
all_sprites.add(map)
player = Player((255, 0, 0), 0, 0, 1000)
all_sprites.add(player)
properties = []
colors = [(255, 255, 0), (0, 255, 255), (255, 0, 255)]
for i in range(3):
    x = random.randint(0, WIDTH - 50)
    y = random.randint(0, HEIGHT - 50)
    price = random.randint(100, 500)
    rent = price // 10
    property = Property(colors[i], x, y, price, rent)
    all_sprites.add(property)
    properties.append(property)

# 游戏循环
running = True
while running:
    # 处理事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    # 更新游戏元素
    all_sprites.update()

    # 绘制游戏界面
    screen.fill(BLACK)
    all_sprites.draw(screen)
    for property in properties:
        property.draw_price()
        property.draw_owner()
    player.draw_money()

    # 刷新屏幕
    pygame.display.flip()

    # 控制游戏帧率
    clock.tick(FPS)

# 退出游戏
pygame.quit()

这个示例游戏中，玩家可以通过方向键移动，到达房产位置后可以购买房产或者支付租金。每个房产都有不同的价格和租金，玩家需要合理投资以增加自己的资产。