为什么PyGame动画会闪烁

问题描述 投票:0回答:1

所以我运行代码,它开始出现故障。我是pygame的新手。

代码如下:

import pygame

pygame.init()
# Screen (Pixels by Pixels (X and Y (X = right and left Y = up and down)))
screen = pygame.display.set_mode((1000, 1000))
running = True
# Title and Icon
pygame.display.set_caption("Space Invaders")
icon = pygame.image.load('Icon.png')
pygame.display.set_icon(icon)
# Player Icon/Image
playerimg = pygame.image.load('Player.png')
playerX = 370
playerY = 480

def player(x, y):
    # Blit means Draw
    screen.blit(playerimg, (x, y))


# Game loop (Put all code for pygame in this loop)
while running:
    screen.fill((225, 0, 0))
    pygame.display.update()

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
    # if keystroke is pressed check whether is right or left
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                print("Left arrow is pressed")

            if event.key == pygame.K_RIGHT:
                print("Right key has been pressed")


            if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
                print("kEYSTROKE RELEASED")

    # RGB (screen.fill) = red green blue

    player(playerX, playerY)
    pygame.display.update()

图像不是故障图像,因为我无法发布视频,但这是我的代码所做的

python pygame pycharm
1个回答
2
投票

问题是多次调用

pygame.display.update()
引起的。在应用程序循环结束时更新显示就足够了。多次调用
pygame.display.update()
pygame.display.flip()
会导致闪烁。

从您的代码中删除对

pygame.display.update()
的所有调用,但在应用程序循环结束时调用一次:

while running:
    screen.fill((225, 0, 0))
    # pygame.display.update() <---- DELETE

    # [...]

    player(playerX, playerY)
    pygame.display.update()

如果您在

screen.fill()
之后更新显示,则显示会在短时间内显示为充满背景色。然后绘制播放器 (
blit
) 并显示播放器在背景之上。

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