Question

我正在编写代码让敌人检测到与玩家的碰撞。在我的敌人课程中，我有以下内容： import flash.display.MovieClip; import flash.events.Event;

public class Enemy extends MovieClip {
    var Player: MovieClip;
    public function Enemy() {
        this.addEventListener(Event.ENTER_FRAME, EnemyUpdate);

    }
    function setPlayer(_Player: MovieClip) {
        Player = _Player;
    }
    function EnemyUpdate(_event: Event) {
        var enemyHit: Boolean = this.hitTestObject(Player.Character.Legs);
        if (enemyHit) {
            trace("OUCH!!");
        }
    }

}

在我的Main Class中，我尝试使用以下命令将Player MovieClip发送到Enemy Class脚本：

    public function Main() {
        enemy.setPlayer(player);
    }

MovieClip敌人附有敌人脚本。当我运行程序时，Player变量为null。如何让播放器识别播放器MovieClip？

Answer 1

这是因为您在实例化敌人后设置了播放器。在Enemy构造函数中，您有EnterFrame侦听器。要修复错误，请更改代码，如下所示：

public function Enemy() {
    // empty constructor, you can remove it if there is no other logic in it

}
function setPlayer(_Player: MovieClip) {
    Player = _Player;
    // the Player variable is not null anymore. 
    this.addEventListener(Event.ENTER_FRAME, EnemyUpdate);
}

用于MovieClip的Adobe Animate ActionScript 3错误1009

1 个答案: