import pygame
from pygame import locals
import random
import json
pygame.init()  # 初始化

class Block(pygame.sprite.Sprite):      # 障碍物精灵类
    def __init__(self,image1,image2,image3):
        super().__init__()
        # 加载障碍物的图片
        self.image = random.choice([image1, image2, image3])
        # 根据障碍物位图的宽高设置矩形
        self.rect = self.image.get_rect()
        # 障碍物绘制坐标
        self.rect.x = 1000
        self.rect.y = 500 - self.rect.height

class Player(pygame.sprite.Sprite):     # 悟空
    def __init__(self, image):
        super().__init__()
        # 加载悟空精灵图像
        self.image = image
        # image的get_rect()方法，可以返回pygame.Rect(0,0,图像宽，图像高）的对象
        self.rect = self.image.get_rect()
        self.rect.x = 150
        self.rect.y = 400

# 创建一个窗口
screen = pygame.display.set_mode((1000, 600))
FPS = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
pygame.display.set_caption("悟空酷跑")
# 载入图片
background = pygame.image.load('bg.png')    # 背景
road = pygame.image.load('road.png')      # 路
stone = pygame.image.load('stone.png')      # 石头
cacti = pygame.image.load('cacti.png')      # 仙人掌
bush = pygame.image.load('bush.png')      # 灌木丛
hero = [pygame.image.load('hero1.png'),
        pygame.image.load('hero2.png'),
        pygame.image.load('hero3.png'),
        pygame.image.load('hero4.png'),
        pygame.image.load('hero5.png')]
score_andio=pygame.mixer.Sound("score.wav")
basic_font = pygame.font.Font('STKAITI.TTF',18)
index = 0   
y = 400
jumpState = "runing"
t = 30
road_x = 0
bg_x = 0
time = 0

gamestate = True
score=0
old_score=0
block_list =pygame.sprite.Group()   # 创建精灵组
wite open('record.txt','r',encoding='utf-8') as f:
    content = f.read()
    record = json.loads(content)
    one=record["第一名"]
    two=record["第二名"]
    three=record["第二名"]


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 jumpState == "runing":
                if event.key == locals.K_SPACE:
                    jumpState = "up"
    
    # 悟空造型
    wukong = Player(hero[index])
    if jumpState == "runing":       # 跑步状态下
        index += 1
        if index >= 5:
            index = 0

    if gamestate == True:
        if jumpState == "up":    # 起跳状态
            if t > 0:
                y -= t
                wukong.rect.y = y
                t -= 2
            else:
                jumpState = "down"  
        if jumpState == "down":    # 降落状态
            if t <= 30:
                y += t
                wukong.rect.y = y
                t += 2
            else:
                jumpState = "runing"
                t =30
        
        # 将背景图画上去
        bg_x -= 1
        if bg_x<=-1000:
            bg_x = 0
        screen.blit(background, (bg_x, 0))      # 远景

        road_x -= 8
        if road_x<=-1000:
            road_x = 0
        screen.blit(road, (road_x, 500))       # 道路

        screen.blit(wukong.image, (150, y))     # 悟空

        time += 1
        if time >= 60:      # 创建障碍物精灵
            time = 0
            num = random.randint(0,50)
            if num > 20:
                obstacle = Block(bush,cacti,stone)  
                block_list.add(obstacle)
        for sprite in block_list:       # 遍历、展示障碍物精灵
            sprite.rect.x -= 8
            screen.blit(sprite.image, (sprite.rect.x, sprite.rect.y)) 
            if sprite.rect.x <= 0-sprite.rect.width:
                sprite.kill()
            if pygame.sprite.collide_rect(wukong, sprite):  # 精灵碰撞检测
                gameover = pygame.image.load('gameover.png')     # 游戏结束
                screen.blit(gameover, (400, 200))
                gamestate = False
            if score > three:
                if score>one:
                    record["第一名"]=score
                    record["第二名"]=one
                    record["第三名"]=one
                elif score >two:
                    record["第一名"]=score
                    record["第二名"]=two
                 else:   
                    record["第三名"]=score
                record = json.dumps(record,ensure_ascii=False)
                with open("record.txt","w",encoding='utf-8') as f:
                    f.write(record)


            else:
                if(sprite.rect.x+sprite.rect.width)<wukong.rect.x:
                    score+=sprite.score
                    gamestate.score=0
        scoreSurf = basic_font.render("分数:"+str(score),True,(255,255,255))
        screen.blit(scoreSurf,(850,20))
        scoreSurf = basic_font.render("第一名:"+str(one),True,(255,255,255))
        screen.blit(scoreSurf,(850,50))
        scoreSurf = basic_font.render("第二名:"+str(two),True,(255,255,255))
        screen.blit(scoreSurf,(850,80))
        scoreSurf = basic_font.render("第三名:"+str(three),True,(255,255,255))
        screen.blit(scoreSurf,(850,110))








        # 刷新画面
        pygame.display.update()
        FPS.tick(60)