import pygame

import sys

import random

from pygame.locals import *

class SkierClass(pygame.sprite.Sprite):

def __init__(self):

pygame.sprite.Sprite.__init__(self)

#滑雪者的朝向

self.direction = 0

self.imgs = ["./images/skier_forward.png", "./images/skier_right1.png", "./images/skier_right2.png", "./images/skier_left2.png", "./images/skier_left1.png"]

self.person = pygame.image.load(self.imgs[self.direction])

#获取矩形的位置

self.rect = self.person.get_rect()

self.rect.center = [320,100]

self.speed = [self.direction,6-abs(self.direction)*2]

#改变滑雪者的朝向，负数为向左，正数为向右 0为直行

def turn(self,num):

self.direction += num

self.direction = max(-2,self.direction)

self.direction = min(2,self.direction)

#设置小人的位置

center = self.rect.center

#加载位图

self.person = pygame.image.load(self.imgs[self.direction])

#获取位图的矩形

self.rect = self.person.get_rect()

#获取小人的中心点位置

self.rect.center = center

self.speed = [self.direction,6-abs(self.direction)*2]

return self.speed

#移动滑雪者

def move(self):

self.rect.centerx += self.speed[0]

self.rect.centerx = max(20,self.rect.centerx)

self.rect.centerx = min(620,self.rect.centerx)

#障碍物类

class ObstacleClass(pygame.sprite.Sprite):

def __init__(self,img_path,location,attribute):

pygame.sprite.Sprite.__init__(self)

self.img_path = img_path

self.image = pygame.image.load(self.img_path)

self.location = location

self.rect = self.image.get_rect()

self.rect.center = self.location

self.attribute = attribute

self.passed = False

#移动方法

def move(self,num):

self.rect.centery = self.location[1] - num

def create_obstacles(s,e):

obstacles = pygame.sprite.Group()

locations = []

for i in range(20):

row = random.randint(s,e)

col = random.randint(0,9)

location = [col*64+20,row*64+20]

if location not in locations:

locations.append(location)

attribute = random.choice(['tree','flag'])

if attribute == 'tree':

img_path = './images/tree.png'

else:

img_path = './images/flag.png'

obstacle = ObstacleClass(img_path,location,attribute)

obstacles.add(obstacle)

return obstacles

def AddObstacles(obstacle0,obstacle1):

obstacles = pygame.sprite.Group()

for obstacle in obstacle0:

obstacles.add(obstacle)

for obstacle in obstacle1:

obstacles.add(obstacle)

return obstacles

#显示结束页面

def over(Demo,width,height):

Demo.fill((125,125,125))

vrert = pygame.font.Font('./font/abc.ttf',width//4)

vrerx = vrert.render('游戏结束',True,(255,0,255))

vrerg = vrerx.get_rect()

vrerg.midtop = (width/2,height)

Demo.blit(vrerx,vrerg)

pygame.display.update()

while True:

for event in pygame.event.get():

if event.type == QUIT:

pygame.quit()

sys.exit()

#显示游戏界面

def Show_Start_Interface(Demo,width,height):

tfont = pygame.font.Font('./font/abc.ttf',width//4)

cfont = pygame.font.Font('./font/simkai.ttf',width//20)

title = tfont.render(u'滑雪游戏',True,(255,255,255))

content = cfont.render(u'按任意键开始游戏',True,(255,255,255))

trect = title.get_rect()

trect.midtop = (width/2,height/10)

crect = content.get_rect()

crect.midtop = (width/2,height/2.2)

Demo.blit(title,trect)

Demo.blit(content,crect)

pygame.display.update()

while True:

for event in pygame.event.get():

if event.type == QUIT:

sys.exit()

elif event.type == pygame.KEYDOWN:

return

#主程序

def main():

pygame.init()

pygame.mixer.init()

pygame.mixer.music.load('./music/bg_music.mp3')

pygame.mixer.music.set_volume(0.4)

pygame.mixer.music.play(-1)

screen = pygame.display.set_mode([640,640])

pygame.display.set_caption('滑雪游戏')

#创建时钟对象（控制循环频率）

clock = pygame.time.Clock()

#滑雪者实例化

skier = SkierClass()

#记录滑雪距离

distance = 0

#速度

speed = [0,6]

#分数

font = pygame.font.Font(None ,50)

score = 0

score_text = font.render('Score:' + str(score),True,((0,0,0)))

Show_Start_Interface(screen,640,640)

#创建障碍物

obstacle1 = create_obstacles(0,9)

obstacle2 = create_obstacles(10,19)

obstacles = AddObstacles(obstacle1,obstacle2)

#更新屏幕

def update():

screen.fill([random.randint(0,255),random.randint(0,255),random.randint(0,255)])

pygame.display.update(obstacles.draw(screen))

#绘制位图（加载图片，和图片的矩形大小）

screen.blit(skier.person,skier.rect)

screen.blit(score_text,[10,10])

pygame.display.flip()

while True:

# 左右键控制人物方向

for event in pygame.event.get():

if event.type == pygame.QUIT:

sys.exit()

if event.type == pygame.KEYDOWN:

if event.key == pygame.K_LEFT or event.key == pygame.K_a:

speed = skier.turn(-1)

elif event.key == pygame.K_RIGHT or event.key == pygame.K_d:

speed = skier.turn(1)

skier.move()

distance +=speed[1]

if distance >= 640:

distance = 0

for obstacle in obstacle2:

obstacle.location[1] -= 640

obstacle1 = obstacle2

obstacle2 = create_obstacles(10,19)

obstacles = AddObstacles(obstacle1,obstacle2)

for obstacle in obstacles:

obstacle.move(distance)

is_hit = pygame.sprite.spritecollide(skier,obstacles,True)

if is_hit:

if is_hit[0].attribute == 'tree':

score -= 50

skier.person = pygame.image.load('./images/skier_fall.png')

update()

pygame.time.delay(1000)

skier.person = pygame.image.load('./images/skier_fall.png')

update()

skier.direction = 0

speed = [0,6]

elif is_hit[0].attribute == 'flag':

score += 10

score_text = font.render('Score:' + str(score),True,(0,0,0))

if score < 0:

over(screen,640,640)

update()

clock.tick(40)

main()