import pygame

from constants import *

from utils import *

from Globals import *

from Mario import Mario

from TilesImageCache import TilesImageCache

class Game:

    def __init__(self):

        # 初始化 Pygame

        pygame.init()

        # 先画到一个画布上

        self.screen = pygame.Surface((SCREEN_WIDTH, SCREEN_HEIGHT))

        # 真正的屏幕

        self.window = pygame.display.set_mode((SCREEN_WIDTH * 2, SCREEN_HEIGHT * 2), pygame.RESIZABLE)

        self.windowSize = self.window.get_rect().size

……省略……

    def run(self):

        # 主循环

        isRunning = True

        while isRunning:

            for event in pygame.event.get():

                if event.type == pygame.QUIT:

                    isRunning = False

                # 监测窗口大小变化事件

                if event.type == pygame.VIDEORESIZE:

                    # 计算比例（event.w和event.h是调整后的宽度和高度）

                    ratio = min(event.w / SCREEN_WIDTH, event.h / SCREEN_HEIGHT)

                    newWidth = int(SCREEN_WIDTH * ratio)

                    newHeight = int(SCREEN_HEIGHT * ratio)

                    self.windowSize = (newWidth, newHeight)

            # 全屏擦除（注意背景色改成了天蓝色）

            self.screen.fill(COLOR_SKY_BLUE)

            # 绘制地图

            self.drawMap()

            # 获取按键状态

            keys = pygame.key.get_pressed()

            # 更新马里奥

            self.mario.update(keys)

            # 放大画面，显示在屏幕中间

            newSurface = pygame.transform.scale(self.screen, self.windowSize)

            showPosX = (self.window.get_rect().size[0]-self.windowSize[0])/2

            showPosY = (self.window.get_rect().size[1] - self.windowSize[1]) / 2

            self.window.blit(newSurface, (showPosX, showPosY))

            # 刷新显示

            pygame.display.flip()

            # 每秒60帧

            self.clock.tick(60)

        # 退出 Pygame

        pygame.quit()

if __name__ == '__main__':

    game = Game()

    Globals.game = game  # 保存起来，便于使用

    game.run()