问题描述
您好,我是 Python 初学者,最近开始学习 Pygame。 但是我理解代码的逻辑,但它开始滞后于简单的调整。 我已经更改了分辨率并设置了 FPS,但它在任何情况下都滞后。
import pygame,os,sys
#init
pygame.init()
clock = pygame.time.Clock()
#screen
WIDTH,HEIGHT = 1280,720
SCREEN = pygame.display.set_mode((WIDTH,HEIGHT))
pygame.display.set_caption("Pong")
#vars
LIGHT_GREY = (200,200,200)
bg = pygame.Color("grey12")
#images
ball = pygame.Rect(WIDTH / 2 - 15,HEIGHT / 2 - 15,30,30)
player = pygame.Rect(WIDTH - 20,HEIGHT/2 - 70,10,140)
opponent = pygame.Rect(10,140)
#vars
ball_speedx = 7
ball_speedy = 7
while True:
clock.tick(60)
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
ball.x += ball_speedx
ball.y += ball_speedy
if ball.top <= 0 or ball.bottom >= HEIGHT:
ball_speedy *= -1
if ball.left <= 0 or ball.right >= WIDTH:
ball_speedx *= -1
#VISUALS
SCREEN.fill(bg)
pygame.draw.rect(SCREEN,LIGHT_GREY,player)
pygame.draw.rect(SCREEN,opponent)
pygame.draw.ellipse(SCREEN,ball)
pygame.draw.aaline(SCREEN,(WIDTH/2,0),HEIGHT))
pygame.display.flip()
解决方法
这是Indentation的问题 .您必须更新球位置并在应用程序循环而不是事件循环中绘制场景:
while True:
clock.tick(60)
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
# INDENTATION
#<--|
ball.x += ball_speedx
ball.y += ball_speedy
if ball.top <= 0 or ball.bottom >= HEIGHT:
ball_speedy *= -1
if ball.left <= 0 or ball.right >= WIDTH:
ball_speedx *= -1
#VISUALS
SCREEN.fill(bg)
pygame.draw.rect(SCREEN,LIGHT_GREY,player)
pygame.draw.rect(SCREEN,opponent)
pygame.draw.ellipse(SCREEN,ball)
pygame.draw.aaline(SCREEN,(WIDTH/2,0),HEIGHT))
pygame.display.flip()