pygame 中敌人不会自行移动

Question

好吧，所以我的敌人只有在我移动角色时才会移动，但有时它也会完全从游戏窗口中产生。还有背景、玩家和敌人……在我按下移动按钮之前不会弹出，我对此感到非常抱歉 lmfao 也对我被告知将它们放在那里以提醒 wtf 的文字和内容感到抱歉

导入pygame 导入随机

pygame.init()

screen = pygame.display.set_mode((800, 600))

background = pygame.image .load("BackgroundImg.jpg")

pygame.display.set_caption("真正的英雄") icon = pygame.image.load('Icon.png') pygame.display.set_icon(icon)

playerImg = pygame.image.load('Player.png') 玩家X = 370 玩家Y = 480 playerX_change = 0

enemyImg = pygame.image.load('Enemy.jpg') enemyX = random.randint(0, 746) enemyY = random.randint(50, 746) enemyX_change = 0.2 enemyY_change = 40

def 玩家(x, y): screen.blit(playerImg, (x, y))

def敌人(x, y): screen.blit(enemyImg, (x, y))

running = True 运行时：

screen.fill((0, 0, 0))
# Background Image
screen.blit(background, (0, 0))
for event in pygame.event.get():
    if event.type == pygame.QUIT:
        running = False

if event.type == pygame.KEYDOWN:
    if event.key == pygame.K_LEFT:
        playerX_change = -0.3
    if event.key == pygame.K_RIGHT:
        playerX_change = 0.3
    if event.type == pygame.KEYUP:
        if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
            playerX_change = 0

    playerX += playerX_change

    if playerX <= 0:
        playerX = 0
    elif playerX >= 736:
        playerX = 736
    
    enemyX += enemyX_change

    if enemyX <= 0:
        enemyX_change = 0.2
        enemyY += enemyY_change
    elif enemyX >= 736:
        enemyX_change = -0.2
        enemyY += enemyY_change

    enemy(enemyX, enemyY)
    player(playerX, playerY)
    pygame.display.update()

Answer 1

敌人仅在按下移动键时才会移动的原因是因为 if event.type == pygame.KEYDOWN: if 语句中有敌人移动代码。您也仅在按下移动键时更新屏幕，因为 pygame.display.update() 也在该 if 语句内。您需要将不应仅在按下某个键时运行的所有代码移出 if 语句。