(PYGAME) 玩家矩形不动

Question

import pygame

# Initializations
game = True
pygame.init()
FPS = 30
clock = pygame.time.Clock()

# Screen
screen = pygame.display.set_mode((600,800))
screen.fill((0,0,0))

# Player
pX = 300
pY = 400
pClr = ((255,255,255))
def Player(plr):
    pygame.draw.rect(screen, pClr, plr)

while game:
    player = pygame.Rect(pX,pY,25,25)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game = False
        
        if event.type == pygame.KEYDOWN:
            while event.key == pygame.K_RIGHT:
                pX -= 50

    Player(player)
    
    clock.tick(FPS)
    pygame.display.update()

由于某种原因，当我按右键时，它不会移动播放器，但在打印时它工作得很好。很抱歉在这里问这个初学者问题。

尝试重新绘制希望它移动的玩家，但无济于事。

Answer 1

将此行中的

while

更改为

if

while event.key == pygame.K_RIGHT:

像这样：

if event.key == pygame.K_RIGHT:

因为

event.key

值不会改变此帧，所以带有

while

的代码只会运行无限循环。

并且您需要添加

screen.fill((0, 0, 0)

在绘制任何东西之前，因为否则矩形会显示一条轨迹

import pygame

# Initializations
game = True
pygame.init()
FPS = 30
clock = pygame.time.Clock()

# Screen
screen = pygame.display.set_mode((600,800))
screen.fill((0,0,0))

# Player
pX = 300
pY = 400
pClr = ((255,255,255))
def Player(plr):
    pygame.draw.rect(screen, pClr, plr)

while game:
    player = pygame.Rect(pX,pY,25,25)

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game = False

        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                pX -= 50

    screen.fill((0, 0, 0))
    Player(player)

    clock.tick(FPS)
    pygame.display.update()

pygame.display.quit()
pygame.quit()