python pygame做成的第一个真的意义上的游戏!

#-*- coding:utf-8 -*-
import  pygame , sys
from pygame.locals import *

class Myballclass(pygame.sprite.Sprite):
    def __init__(self,image_file,speed,location):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load(image_file)
        self.rect = self.image.get_rect()
        self.rect.left, self.rect.top = location
        self.speed = speed

    def move(self):
        self.rect = self.rect.move(self.speed)
        if self.rect.left < 0 or self.rect.right > screen.get_width():
            self.speed[0] = -self.speed[0]
        if self.rect.top <= 0 :
            self.speed[1] = -self.speed[1]
        
    def over(self):
        self.rect=self.rect.move(self.speed)
        if self.rect.bottom>screen.get_height():
            font =pygame.font.SysFont("宋体",40)
            text_surface=font.render(u"GAME OVER",True,(0,0,255))
            screen.blit(text_surface,(320,240))

            return 0
      
        
class Mypaddleclass(pygame.sprite.Sprite):
    def __init__(self, location):
        pygame.sprite.Sprite.__init__(self)
        image_surface = pygame.surface.Surface([100, 20])
        #控制蓝色标签的大小
        image_surface.fill([213,213,123])
        #控制颜色
        self.image = image_surface.convert()

        self.rect = self.image.get_rect()
        self.rect.left, self.rect.top = location

pygame.init()
screen = pygame.display.set_mode([1280,960])
background=pygame.image.load("6.jpg").convert()
clock = pygame.time.Clock()
ball_speed = [4, -4]
score=0
#控制移方向的,参数为正时并且越大的移动越快t
#最后一个参数控制图像初始位置的
myball = Myballclass('5.png', ball_speed, [10,50])
ballgroup = pygame.sprite.Group(myball)
paddle = Mypaddleclass([270,400])
#控制蓝色标签的初始位置
time=20
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        elif event.type == pygame.MOUSEMOTION:
            paddle.rect.centerx = event.pos[0]
    if pygame.sprite.spritecollide(paddle, ballgroup, 0):
        myball.speed[1] = -myball.speed[1]
        time=time+1
        score=score+10 
    clock.tick(time)

    screen.fill([255,255,255])
    font =pygame.font.SysFont("宋体",40)
    text_surface=font.render(u'分数'+str(score),True,(0,0,255))
    screen.blit(text_surface,(32,24))
    
    #open()参数的用法a+连续写入不覆盖,r+写入最后一个,w+写入的内容全覆盖
    scorefile=open('a.txt','r+')
    for a in scorefile.readline(10):
        text_surface1=font.render(u'最高记录   '+str(a),True,(0,0,255))    
        screen.blit(text_surface1,(320,24))
        print "woqu"
        print a
        print "nima"
        print score
        if (a<score):
            print a
            print a*a
            print score
            scorefile.flush()
            scorefile.writelines(str(score))
    
    scorefile.close()
    myball.move()
    myball.over()
    screen.blit(myball.image, myball.rect)
    screen.blit(paddle.image, paddle.rect)
    pygame.display.flip()

这个是一个接物游戏!接到之后速度不断变快,直到接不住为止