乒乓游戏：玩家得分后产生新的球

Question

我想学习如何重新开始/产生一个新的球来继续游戏。当其中一名球员得分-游戏结束时，没有新的球产生/产生？在每一分之后我需要什么代码来继续游戏？在

我的乒乓球游戏代码：

    import pygame, sys
    import random
    import math
    pygame.init()

    #Screen Width/Height
    screen = pygame.display.set_mode((800,600))

    #Background Image
    background_image = pygame.image.load("tennis.jpg").convert()

    #Score Font
    pygame.font.init()
    font = pygame.font.Font("Bombing.TTF", 50)

    #Graphics Font
    graphicsScore = "Game Score!"
    graphicsFont = pygame.font.Font("Bombing.TTF", 50)

    #Paddle Player1
    paddle_player1 = pygame.Rect(5,50,5,60)
    player1Score = 0

    #Paddle Player2
    paddle_player2 = pygame.Rect(790,50,5,60)
    player2Score = 0

    #Ball
    ball = pygame.Rect(300,200,20,20)
    ballAngle = math.radians(0)
    ballSpeed = 10
    ballDirection = -1

    #frame
    clock = pygame.time.Clock()

    #Process Player Input
    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                sys.exit()

                timeChange = pygame.time.get_ticks() - totalTime
                totalTime = pygame.time.get_ticks()

            player1_up = pygame.key.get_pressed()[pygame.K_w] 
            player1_down = pygame.key.get_pressed()[pygame.K_s]

            player2_up = pygame.key.get_pressed()[pygame.K_UP]
            player2_down = pygame.key.get_pressed()[pygame.K_DOWN]

    #Updating Game State Logic
            if player1_up:
                paddle_player1.y += -50 
            if player1_down:
                paddle_player1.y += 50 
            if player2_up:
                paddle_player2.y += -50 
            if player2_down:
                paddle_player2.y += 50 

           if paddle_player1.y < 0:
                paddle_player1.y = 0
           if paddle_player2.y < 0:
                paddle_player2.y = 0

           if paddle_player1.y > screen.get_height() - paddle_player1.height:
                paddle_player1.y = screen.get_height() - paddle_player1.height
            if paddle_player2.y > screen.get_height() - paddle_player2.height:
                paddle_player2.y = screen.get_height() - paddle_player2.height


    #Update Ball
        ball.x += ballDirection * ballSpeed * math.cos(ballAngle)
        ball.y += ballDirection * ballSpeed * math.sin(ballAngle)
        if ball.x > 800 or ball.x < 0:
            ballSpeed *= 1
            if ball.x > 800:
                player1Score = 1
                applause = pygame.mixer.music.load('applause.wav')
                pygame.mixer.music.play()
            if ball.x < 0:
                player2Score = 1
                applause = pygame.mixer.music.load('applause.wav')
                pygame.mixer.music.play()

        if player1Score >= 10 or player2Score >= 10:
                   player1Score = 0
                   player2Score = 0

    #Paddle Collision
        if ball.colliderect(paddle_player1):
                if ball.x < 5:
                    ballDirection *= -1
                    ballAngle = random.randrange(20, 300)

                    pong = pygame.mixer.music.load('serve.wav')
                    pygame.mixer.music.play()
        if ball.colliderect(paddle_player2):
                if ball.x > 40:
                    ballDirection *= -1
                    ballAngle = random.randrange(20, 300)

                    pong = pygame.mixer.music.load('serve.wav')
                    pygame.mixer.music.play()
    #Wall Collision
        if ball.y <= 0:
            ballAngle *= -1
        if ball.y >= 600:
            ballAngle *= -1


   #Rendering
        screen.blit(background_image, [0,0])
        screen.blit(font.render(str(player1Score), 1, (178,34,34)),(200, 25))
        screen.blit(font.render(str(player2Score), 1, (178,24,24)),(600, 25))
        screen.blit(font.render(str(graphicsScore), 1, (245,255,250)), (330, 25))
        pygame.draw.rect(screen,(0,0,0), paddle_player1)
        pygame.draw.rect(screen,(0,0,0), paddle_player2)
        pygame.draw.rect(screen,(0,255,0), ball)

        clock.tick(50)
        pygame.display.flip()

Answer 1

一个快速添加功能到你的游戏，你正在寻找的方法就是重置球的参数到你在主游戏循环之前设置的参数。在

每当玩家为游戏添加分数时，请调用该函数：

def resetBall():
    ball.rect.x = 300
    ball.rect.y = 200
    ballAngle = math.radians(0)
    ballSpeed = 10
    ballDirection = -1

这只需将除分数外的所有内容设置回游戏开始状态。在