using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class JoystickViewController : MonoBehaviour {
	private Vector2 _axisValue;
	public RectTransform axisView;
	public RectTransform axisViewParent;

	public void SetAxis(float x, float y){
		_axisValue.x = Mathf.Clamp(x, -1.0f, 1.0f);
		_axisValue.y = Mathf.Clamp(y, -1.0f, 1.0f);

		if (_axisValue.sqrMagnitude > 1.0f) {
			_axisValue.Normalize ();
		}



		float parentWidth = axisViewParent.rect.width;
		float parentHeight = axisViewParent.rect.height;

		var pos = axisView.localPosition;
		pos.x = _axisValue.x * (parentWidth * 0.5f);
		pos.y = _axisValue.y * (parentHeight * 0.5f);
		axisView.localPosition = pos;
	}


	// Use this for initialization
	void Start () {
	
	}
	
	// Update is called once per frame
	void Update () {

	}
}