using System;
using System.Collections.Generic;
using System.Linq;

using Duality;
using Duality.Input;
using Duality.Components;
using Duality.Drawing;

namespace CameraController
{
	[RequiredComponent(typeof(Camera))]
	[RequiredComponent(typeof(Transform))]
	public class RigidCameraController : Component, ICmpInitializable, ICameraController
	{
		private GameObject targetObj = null;
		public GameObject TargetObject
		{
			get { return this.targetObj; }
			set { this.targetObj = value; }
		}

		void ICmpInitializable.OnInit(InitContext context)
		{
			if (context == InitContext.Activate)
			{
				Camera camera = this.GameObj.GetComponent<Camera>();
				this.GameObj.Parent = this.targetObj;
				this.GameObj.Transform.RelativePos = new Vector3(0.0f, 0.0f, -camera.FocusDist);
			}
		}
		void ICmpInitializable.OnShutdown(ShutdownContext context)
		{
			if (context == ShutdownContext.Deactivate)
			{
				this.GameObj.Parent = null;
			}
		}
	}
}