using UnityEngine;
using System.Collections;

public class BallController : MonoBehaviour {
	public Joystick joy;
	public float acceleration = 1.0f;
	public Camera cam;
	public float maxAngularVelocity = 7;
	public CheckpointManager manager;
	public AudioClip floorContactSound;
	public AudioClip rollingSound;
	private AudioSource contactSource;
	private AudioSource rollingSource;
	// Use this for initialization
	void Start () {
		rigidbody.maxAngularVelocity = maxAngularVelocity;
		contactSource = gameObject.AddComponent<AudioSource> ();
		rollingSource = gameObject.AddComponent<AudioSource> ();
		rollingSource.loop = true;
		rollingSource.clip = rollingSound;
		contactSource.volume = 0.4f;
	}
	
	// Update is called once per frame
	void Update () {

		//Debug.Log(rigidbody.angularVelocity);
		if (joy != null && rigidbody != null) {

			float angle = Mathf.Rad2Deg * joy.Angle;
			var forward = cam.transform.right;
			forward.y = 0;
			forward.Normalize();


			Quaternion rotation = Quaternion.AngleAxis (angle, Vector3.up);
			Vector3 speedVector = (rotation * forward);
			speedVector = speedVector.normalized * (joy.Value *  acceleration);
			rigidbody.angularVelocity += Time.deltaTime *  speedVector;
		}

		float minAng = 0.0f;
		float maxAng = 3.0f;

		rollingSource.volume = (Mathf.Clamp (rigidbody.angularVelocity.magnitude, minAng, maxAng) / (maxAng - minAng)) * 3.0f;



		bool grounded = false;
		RaycastHit hit;
		if (Physics.Raycast (this.transform.position - Vector3.up * collider.bounds.extents.y * 0.9f, -Vector3.up, out hit)) {
			if (hit.distance < 0.1f) {
				grounded = true;
			}
		}


		if (rigidbody.angularVelocity.magnitude <= minAng || !grounded) {

			if(rollingSource.isPlaying){
				rollingSource.Stop ();
			}	
		} else {
			if(!rollingSource.isPlaying && grounded){
				rollingSource.Play();
			}
		}
	}

	void OnKill(GameObject killer){
		manager.OnPlayerKilled ();
	}

	void OnCollisionEnter(Collision collision) {
		//foreach (ContactPoint contact in collision.contacts) {
		//	Debug.DrawRay(contact.point, contact.normal, Color.white);
		//}

		float maxMagnitude = 40.0f;
		float minMagnitude = 4.0f;
		audio.volume = Mathf.Clamp (collision.relativeVelocity.magnitude, minMagnitude, maxMagnitude) / (maxMagnitude - minMagnitude);
		if (collision.relativeVelocity.magnitude > minMagnitude)
			contactSource.PlayOneShot (floorContactSound);

		
	}
}