using UnityEngine;
using System.Collections;

[ExecuteInEditMode]
[ExecuteInEditMode]
public class ScreenPosition : MonoBehaviour
{
	[SerializeField]
	private Vector3 _position = new Vector3(0, 0, 10);
	public Vector3 position{
		get{
			return _position;
		}
		set{
			isChange = true;
			_position = value;
			transform.position = Camera.main.ScreenToWorldPoint(_position);
		}
	}

	private bool isChange = false;

	void Update()
	{
		if( transform.hasChanged && isChange == false ){
			_position = Camera.main.WorldToScreenPoint(transform.position);
		}else{
			isChange = false;
		}
	}

	void OnValidate()
	{
		position = _position;
	}
}