using UnityEngine;
using System.Collections;

public class BowCharge : MonoBehaviour
{

	private Animation anim;
	private Rigidbody body;
	private GameObject arrowClone;

	public GameObject baseArrow;
	public GameObject activeArrow;
	public float power;

	void Start ()
	{
		anim = GetComponent<Animation> ();
	}

	void Update ()
	{
		if (Input.GetMouseButtonDown (0))
		{
			anim.Play ("Bow Pull Back");
		}
		else if (Input.GetMouseButtonUp (0))
		{
			anim.Play ("Bow Release");
			InstanciateArrow ();
		}

		if (body != null && arrowClone != null)
		{
			arrowClone.transform.right = -body.velocity.normalized;
			arrowClone.transform.LookAt (arrowClone.transform.position + body.velocity);
		}
	}

	private void InstanciateArrow()
	{
		arrowClone = Instantiate (baseArrow, activeArrow.transform.position, activeArrow.transform.rotation) as GameObject;
		arrowClone.gameObject.transform.position = activeArrow.transform.position;
		arrowClone.transform.rotation = activeArrow.transform.rotation;
		body = arrowClone.GetComponent<Rigidbody> ();
		body.useGravity = true;
		body.AddForce ((-transform.right) * (power * 10000) * Time.deltaTime, ForceMode.Impulse);
	}

}