pygame play the balls

import pygameimport sysfrom pygame.locals import *from random import *import tracebackclass Ball(pygame.sprite.Sprite):    def __init__(self,grayball_image,greenball_image,positiion,speed,bg_size,target):        pygame.sprite.Sprite.__init__(self)        self.grayball_image=pygame.image.load(grayball_image).convert_alpha()        self.greenball_image = pygame.image.load(greenball_image).convert_alpha()        self.rect=self.grayball_image.get_rect()        self.rect.left,self.rect.top=positiion        self.speed=speed        self.width,self.height=bg_size[0],bg_size[1]        self.radius=self.rect.width/2        self.target=target        self.control=False        self.side = [choice([-1, 1]), choice([-1, 1])]        self.collide = False    def move(self):        if self.control:            self.rect = self.rect.move(self.speed)        else:            self.rect = self.rect.move(self.side[0] * self.speed[0], self.side[1] * self.speed[1])        if self.rect.right<=0:            self.rect.left=self.width        elif self.rect.left>=self.width:            self.rect.right=0        elif self.rect.bottom<=0:            self.rect.top=self.height        elif self.rect.top>=self.height:            self.rect.bottom=0    def check(self, motion):        if self.target < motion < self.target +5 :            return True        else:            return False# 玻璃class Glass(pygame.sprite.Sprite):    def __init__(self, glass_image,mouse_image, bg_size):        pygame.sprite.Sprite.__init__(self)        self.glass_image = pygame.image.load(glass_image).convert_alpha()        self.glass_rect = self.glass_image.get_rect()        self.glass_rect.left, self.glass_rect.top = (bg_size[0]-self.glass_rect.width)//2,(bg_size[1]-self.glass_rect.height)        self.mouse_image = pygame.image.load(mouse_image).convert_alpha()        self.mouse_rect = self.mouse_image.get_rect()        self.mouse_rect.left, self.mouse_rect.top =  self.glass_rect.left, self.glass_rect.top        # 初始化鼠標的位置於左上角        pygame.mouse.set_pos([ self.glass_rect.left, self.glass_rect.top])        # 鼠標不可見        pygame.mouse.set_visible(False)def main():    pygame.init()    pygame.mixer.init()    grayball_image="gray_ball.png"    greenball_image="green_ball.png"    bg_image="background.png"    mouse_image="hand.png"    glass_image = "glass.png"    running=True    # 添加背景音樂    pygame.mixer.music.load("bg_music.ogg")    pygame.mixer.music.play()    # 添加音效    loser_sound = pygame.mixer.Sound("loser.wav")    laugh_sound = pygame.mixer.Sound("laugh.wav")    winner_sound = pygame.mixer.Sound("winner.wav")    hole_sound = pygame.mixer.Sound("hole.wav")    # 音樂播放時結束    GAMENOVER=USEREVENT    # 音樂中止時向隊列發送一個信號    pygame.mixer.music.set_endevent(GAMENOVER)    pygame.mixer.music.play()    bg_size=width,height=1024,681    screen=pygame.display.set_mode(bg_size)    pygame.display.set_caption("球球")    background=pygame.image.load(bg_image).convert_alpha()    balls=[]    hole=[(117,119,199,201),(225,227,390,392),(503,505,320,322),(698,700,192,194),(906,908,419,421)]    group=pygame.sprite.Group()    for i in range(5):        position=randint(0,width-100),randint(0,height-100)        speed=[randint(1,10),randint(1,10)]        ball=Ball(grayball_image,greenball_image,position,speed,bg_size,5*(i+1))        # 檢測新的球是否會卡住其餘的球        while pygame.sprite.spritecollide(ball, group, False, pygame.sprite.collide_circle):            ball.rect.left, ball.rect.top = randint(0, width - 100), randint(0, height - 100)        balls.append(ball)        group.add(ball)    area=Glass(glass_image,mouse_image,bg_size)    motion=0    MYTIMER=USEREVENT+1    pygame.time.set_timer(MYTIMER,1000)    pygame.key.set_repeat(100,100)    # 限制cpu使用    clock=pygame.time.Clock()    while running:        for event in pygame.event.get():            if event.type==QUIT:                sys.exit()            elif event.type==MYTIMER:                if motion:                    for each in  group:                        if each.check(motion):                            each.speed=[0,0]                            each.control=True                    motion=0            elif event.type==MOUSEMOTION:                motion+=1            elif event.type ==GAMENOVER:                loser_sound.play()                pygame.time.delay(100000)                laugh_sound.play()                running=False            elif event.type==KEYDOWN:                if event.key==K_w:                    for each in group:                        if each.control:                            each.speed[1]-=1                if event.key == K_s:                    for each in group:                        if each.control:                            each.speed[1] += 1                if event.key == K_a:                    for each in group:                        if each.control:                            each.speed[0] -= 1                if event.key == K_d:                    for each in group:                        if each.control:                            each.speed[0] += 1                if event.key==K_SPACE:                    if each.control:                        for i in hole:                            if i[0]<=each.rect.left<=i[1] and i[2]<=each.rect.top<=i[3]:                                hole_sound.play()                                each.speed[0,0]                                group.remove(each)                                temp=balls.pop((balls.index(each)))                                balls.insert(0,temp)                                hole.remove(i)                            if not hole:                                pygame.mixer.music.stop()                                winner_sound.play()                                pygame.time.delay(3000)                                msg=pygame.image.load("win.png").convert_alpha()                                msg_pos=(width-msg.get_width())//2,(height-msg.get_height())//2                                msg.append(msg,msg_pos)                                laugh_sound.play()        screen.blit(background,(0,0))        screen.blit(area.glass_image,area.glass_rect)        # 獲取鼠標當前位置，並設置代替光標的圖標        area.mouse_rect.left,area.mouse_rect.top=pygame.mouse.get_pos()        # 限制鼠標只能在玻璃內摩擦        if area.mouse_rect.left<area.glass_rect.left:            area.mouse_rect.left=area.glass_rect.left        if area.mouse_rect.right > area.glass_rect.right:            area.mouse_rect.right = area.glass_rect.right        if area.mouse_rect.top <area.glass_rect.top:            area.mouse_rect.top = area.glass_rect.top        if area.mouse_rect.bottom >area.glass_rect.bottom:            area.mouse_rect.bottom = area.glass_rect.bottom        screen.blit(area.mouse_image, area.mouse_rect)        for each in balls:            each.move()            if each.collide:                each.speed=[randint(1,10),randint(1,10)]                each.collide=False            if each.control:                screen.blit(each.greenball_image,each.rect)            else:                screen.blit(each.grayball_image, each.rect)        for each in group:            group.remove(each)            if pygame.sprite.spritecollide(each,group,False, pygame.sprite.collide_circle):                each.side[0]=-each.side[0]                each.side[1] = -each.side[1]                each.collide=True                if each.control:                    each.side[0]=-1                    each.side[-1]=-1                    each.control=False                # each.speed[0]=-each.speed[0]                # each.speed[1] = -each.speed[1]                # each.collide=False                # each.control=False            group.add(each)        pygame.display.flip()        clock.tick(30)if __name__=="__main__":    try:        main()    except SystemExit:        pass    except:       traceback.print_exc()    pygame.quit()    input()github完整代碼與素材：https://github.com/cherrysink/theplaytheballs