梯子重叠时如何设置玩家的移动能力

Question

我正在编写一个简单的平台游戏。我使用平铺地图来创建用于重叠和碰撞的关卡图层。我遇到了一个问题：我试图使玩家能够在与梯形图块发生重叠时爬上梯子。

我在gameSettings对象playerMoveY中有一个变量：false（因此默认情况下玩家只能向左或向右行走）

当玩家重叠梯形图块时，他可以攀爬，但之后始终可以攀爬，因为变量playerMoveY仍为true。我不知道如何切换回去。也许使用标志不是一个好主意。我需要建议。谢谢。

let gameSettings = {
    playerSpeed: 60,
    playerMoveY: false,
}

//here's the code from gameScene class
this.laddersLayer.setTileIndexCallback(29, this.allowClimb, this);
this.physics.add.overlap(this.player, this.laddersLayer);

    movePlayerManager() {
        if (this.cursorKeys.left.isDown) {
            this.player.anims.play('playerWalkLeft', true);
            this.player.setVelocityX(-gameSettings.playerSpeed);
        } else if (this.cursorKeys.right.isDown) {
            this.player.anims.play('playerWalkRight', true);
            this.player.setVelocityX(gameSettings.playerSpeed);
        } else {
            this.player.setVelocityX(0);
            this.player.anims.play('playerStand');
        }

        if (gameSettings.playerMoveY) {

        if (this.cursorKeys.up.isDown) {
                this.player.anims.play('playerClimb', true);
                this.player.setVelocityY(-gameSettings.playerSpeed);
            } else if (this.cursorKeys.down.isDown) {
                this.player.anims.play('playerClimb', true);
                this.player.setVelocityY(gameSettings.playerSpeed);
            } else {
                this.player.setVelocityY(0);
            }
        }
    }

//and here's the callback function when overlap
    allowClimb() {
        gameSettings.playerMoveY = true;
    }