碰撞体回调报错

Creator 3.x
#1

3.7 3.8版本都试过，都报错。

image
image887×419 30 KB

player 有一个脚本，给sensor碰撞体注册回调函数，然后这个回调函数中的this.xxx全部都报错，
Cannot read property ‘xxx’ of undefined

this.sensorCollider.on(Contact2DType.BEGIN_CONTACT,this._onSensorBeginContact);

    public _onSensorBeginContact(selfCollider: Collider2D, otherCollider: Collider2D, contact: IPhysics2DContact): void{
    if(otherCollider.tag==GameConfigTable.monster_collider_tag){
        //console.info(BattleSceneManager.instance.playerBattleUnit.node.name);
        console.info(**this.node**.name);
        //this.sensoredMonstersArray.push(otherCollider.node);
    }

    //还有注册一个事件，当怪物死亡，将怪物从这里移除。
    EventManager.Regist(EventTypeForEventManager.MonsterDie,(param:{tag:string,monsterUnit:MonsterBattleUnit})=>{
        utilsKxp.deleteElementOfArray(param.monsterUnit.node,this.sensoredMonstersArray);
    },this)
}

会报错
[PreviewInEditor] Cannot read property ‘node’ of undefined.