【发布时间】：2021-07-12 00:32:15
【问题描述】：
我是 pygame 的新手，我尝试从头开始制作一个简单的乒乓球游戏，但我无法让游戏重新启动。我试图在一个while循环中做一个while循环。 当您松开它时，它会跳转到丢失循环并显示它应该显示的内容，并且一切正常，没有错误消息，但重新启动似乎不起作用。
import pygame
from pygame import rect
from pygame.constants import KEYDOWN, KEYUP
import random
def drawText(t, x, y):
text = font.render(t, True, YELLOW, GREY)
text_rectangle = text.get_rect()
text_rectangle.topleft = (x,y)
screen.blit(text, text_rectangle)
# constant Variables
WIDTH = 800
HEIGHT = 600
FPS = 60
GREY = (89, 88, 78)
YELLOW = (232, 219, 93)
# define colors
WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
RED = (255, 0, 0)
GREEN = (0, 255, 0)
BLUE = (0, 0, 255)
icon = pygame.image.load("pong.png")
clock = pygame.time.Clock()
# Init
pygame.init()
# Create the Window
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("Pong")
pygame.display.set_icon(icon)
font = pygame.font.Font(pygame.font.get_default_font(), 24)
playerOneY = 200
playerTwoY = 200
ballY = HEIGHT / 2
ballX = WIDTH / 2
up1 = False
up2 = False
down1 = False
down2 = False
ballY = 300
ballX = 400
ballDx = 4
ballDy = 4
score = 0
lose = False
running = True
# game loop
while running:
clock.tick(FPS)
# QUIT
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
elif event.type == KEYDOWN:
if event.key == pygame.K_w:
up1 = True
if event.key == pygame.K_s:
down1 = True
if event.key == pygame.K_UP:
up2 = True
if event.key == pygame.K_DOWN:
down2 = True
elif event.type == KEYUP:
if event.key == pygame.K_w:
up1 = False
if event.key == pygame.K_s:
down1 = False
if event.key == pygame.K_UP:
up2 = False
if event.key == pygame.K_DOWN:
down2 = False
player1 = pygame.Rect(10, playerOneY, 20, 200)
player2 = pygame.Rect(770, playerTwoY, 20, 200)
ball = pygame.Rect(ballX, ballY, 20, 20)
# input
# Ball Collition
ballX += ballDx
ballY += ballDy
if (ball.colliderect(player1)):
ballDx = abs(ballDx)
score += 1
print(score / 3)
elif (ball.colliderect(player2)):
ballDx = abs(ballDx) * -1
score += 1
print(score / 3)
elif(ballY <= 0):
ballDy = abs(ballDy)
elif(ballY >= HEIGHT):
ballDy = abs(ballDy) * -1
elif(ballX >= WIDTH):
running = False
lose = True
elif(ballX <= 0):
running = False
lose = True
# Player Movement
if up1 == True:
playerOneY -= 5
if up2 == True:
playerTwoY -= 5
if down1 == True:
playerOneY += 5
if down2 == True:
playerTwoY += 5
# Boundaries
if playerOneY < 0:
playerOneY = 0
if playerOneY > 400:
playerOneY = 400
if playerTwoY < 0:
playerTwoY = 0
if playerTwoY > 400:
playerTwoY = 400
# Draw
# Player 1
screen.fill(BLACK)
# Score
drawText(str(score), 400, 50)
pygame.draw.rect(screen, WHITE, player1)
# Player 2
pygame.draw.rect(screen, WHITE, player2)
# Ball
pygame.draw.rect(screen, WHITE, ball)
# update
pygame.display.flip()
while lose:
for event in pygame.event.get():
if event.type == pygame.QUIT:
lose = False
if event.type == KEYDOWN:
if event.key == pygame.K_q:
lose = False
if event.key == pygame.K_r:
lose = False
if event.type == KEYUP:
if event.key == pygame.K_r:
running = True
screen.fill(BLACK)
drawText("You Lost!", 350, 200)
drawText("You had", 355, 250)
drawText(str(score), 400, 300)
drawText("Points", 370, 350)
drawText("Press Q to QUIT or R to Restart", 250, 400)
pygame.display.flip()
# quit
pygame.quit()
【问题讨论】：
-
将所有初始化代码移到一个函数中，并在需要重置时调用它。
-
不要重新启动，而是在另一个
while-loop 中运行以一次又一次地重复它。而在这个循环中，你必须把playerOneY = 200等重新设置值。 -
doesnt seem to work是什么意思？最好有问题地描述它（不在评论中），这样我们就可以看到你真正的问题是什么。
标签： python python-3.x pygame