import pygame
from pygame import locals

pygame.init()  # 初始化
# 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('乌cono')
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
apple = 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')]
index = 0 
y=400
jump="run"
t=30
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 event.key == locals.K_SPACE:
                jump='up'

    if jump=='up':   
        if t>0:
            y=y-t
            t=t-2       
        else:
            jump='down' 
    if jump=='down':
        if t<=30: 
            y=y+t
            t=t+2
        else:
            t=30
            jump='run'       
    # 将背景图画上去
    wukong=hero[index]
    screen.blit(background, (0, 0))
    screen.blit(road, (0, 500))
    screen.blit(wukong, (150, y))

    index+=1
    if index>4:
        index=0
    # 刷新画面
    pygame.display.update()
    FPS.tick(60)