Probems inheriting DirectionalTrigger

using System;
using System.Collections.Generic;
using System.Text;

using Microsoft.Xna.Framework;

using GarageGames.Torque.Core;
using GarageGames.Torque.Util;
using GarageGames.Torque.Sim;
using GarageGames.Torque.T2D;
using GarageGames.Torque.SceneGraph;
using GarageGames.Torque.MathUtil;

using GarageGames.Torque.PlatformerFramework;

namespace GarageGames.Torque.PlatformerDemo
{
    [TorqueXmlSchemaType]
    public class BlockComponent : DirectionalTriggerComponent
    {

        //======================================================
        #region Public properties, operators, constants, and enums

        //public T2DSceneObject SceneObject

        public T2DAnimationData TriggeredAnimation
        {
            get { return _triggeredAnimation; }
            set { _triggeredAnimation = value; }
        }

        #endregion

        //======================================================
        #region Public methods

        public override void CopyTo(TorqueComponent obj)
        {
            base.CopyTo(obj);
            
        }

        #endregion

        //======================================================
        #region Private, protected, internal methods

        protected override void _onEnter(T2DSceneObject ourObject, T2DSceneObject theirObject, T2DCollisionInfo info)
        {
            base._onEnter(ourObject, theirObject, info);

            DragonActorComponent actor = theirObject.Components.FindComponent<DragonActorComponent>();

            if (actor == null)
                return;

            ActorHit(actor);
        }

        private void ActorHit(ActorComponent actor)
        {

            T2DAnimatedSprite animSprite = Owner as T2DAnimatedSprite;

            if (animSprite != null && !_triggered)
            {
                animSprite.PlayAnimation(_triggeredAnimation);
            }

            _triggered = true;

        }

        protected override bool _OnRegister(TorqueObject owner)
        {
            if (!base._OnRegister(owner))
                return false;

            SceneObject.SetObjectType(PlatformerData.BlockObjectType, true);

            return true;
        }

        protected override void _OnUnregister()
        {
            base._OnUnregister();
        }

        #endregion

        //======================================================
        #region Private, protected, internal fields

        private T2DAnimationData _triggeredAnimation;
        private bool _triggered;

        #endregion
    }
}