PyGame边界冲突检测不工作

Question

我是pygame的新手，我做了一个屏幕边框检测，但它不起作用

screen = pygame.display.set_mode([854, 480])

并检查它是否接触到边缘

pressed = pygame.key.get_pressed()

if playerY > 0:
    if pressed[pygame.K_w]: playerY -= 1
if playerY > 854:
    if pressed[pygame.K_s]: playerY += 1
if playerX > 0:
    if pressed[pygame.K_a]: playerX -= 1
if playerX > 480:
    if pressed[pygame.K_d]: playerX += 1

但如果我们使用它就会坏掉/播放器就会卡住

整个代码是

import pygame

pygame.init()

screen = pygame.display.set_mode([854, 480])

running = True

playerX = 70
playerY = 400

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

    pressed = pygame.key.get_pressed()

    if playerY > 0:
        if pressed[pygame.K_w]: playerY -= 1
    if playerY > 854:
        if pressed[pygame.K_s]: playerY += 1
    if playerX > 0:
        if pressed[pygame.K_a]: playerX -= 1
    if playerX > 480:
        if pressed[pygame.K_d]: playerX += 1
    
    screen.fill((255, 255, 255))

    player = pygame.draw.rect(screen, (0, 0, 0), pygame.Rect(playerX, playerY, 10, 25))

    pygame.display.flip()

Answer 1

应该是

pressed = pygame.key.get_pressed()

if playerY > 0:
    if pressed[pygame.K_w]: playerY -= 1
if playerY < 854:
    if pressed[pygame.K_s]: playerY += 1
if playerX > 0:
    if pressed[pygame.K_a]: playerX -= 1
if playerX < 480:
    if pressed[pygame.K_d]: playerX += 1