using UnityEngine;
using System.Collections;

[ExecuteInEditMode]
public class PixelPerfectCamera : MonoBehaviour {
	private Camera _cam;
	public int pixelsToUnits = 1;
	public int zoom = 1;

	// Use this for initialization
	void Start () {

		FindCamera();
		FitCameraSize();
	}



	// Update is called once per frame
	void Update () {
		FitCameraSize();
	}

	void FitCameraSize(){
		if(_cam != null){
			float camSize = ((float)(_cam.pixelHeight) / 2.0f ) / pixelsToUnits;
			_cam.orthographicSize = camSize / zoom;
		}
	}

	void FindCamera(){
		_cam = gameObject.GetComponent<Camera>();
	}

	void OnValidate(){
		FindCamera();
		FitCameraSize();
	}

}