/// <summary>
/// Animator controller.
/// DavidOneill
/// 17/7/14
/// This class will manage all animation for characters( players, Enemies, bosses).
/// simple npc animations will be using NpcAnimatorController.
/// </summary>
using UnityEngine;
using System.Collections;
//
[RequireComponent (typeof (Animator))]
//[RequireComponent (typeof (CombatFSM))]
//
public class AnimatorController : MonoBehaviour {

    public CombatFSM _combat;
    private Health _health;
    public playerMovement _Move;
    public enemyMovement _enemyMove;
    public enemySprite _sprite;
    private Animator _anim;
    public int _attackInt = 0;
    //public int _weaponType = 0;  //need to add and Id int to weapons in CombatFsm.cs

    //These next 2 are for npcs only.
    protected Motion motion; //instance of motion static class.
    private NavMeshAgent _agent = null;

//  private AnimatorStateInfo _BaseInfo;
//  private AnimatorStateInfo _Layer1Info;

//  static int IdleState = Animator.StringToHash("Base Layer.Idle"); //These will he handy later.//

    public string myState;// checks FsmState.

    // Use this for initialization
    void Start () {
        //Key References
        _combat = GetComponent<CombatFSM>();
        myState = _combat.currentState.ToString();
        _health = GetComponent<Health>();
        _anim = GetComponent<Animator>();
        motion = new Motion(_anim);
        //_sprite = GetComponentInChildren<enemySprite>();

        if(_anim == null || _combat == null || _health == null || _sprite == null)
        {
            Debug.Log ("Key Component Missing!!");
        }
        //MoveMent
        if(_combat.isPlayer)
        {

            _Move = GetComponent<playerMovement>();
            _enemyMove = null;
        }
        else
        {
            //_Move = null;
            _enemyMove = GetComponent<enemyMovement>();
            _agent = GetComponent<NavMeshAgent>();
        }
    }

    void FixedUpdate()
    {
        if(_combat.isPlayer)
        {
                float h = _Move.MYdir;
                float v = _Move.mySpeed;
                _anim.SetFloat("Speed",v);
                _anim.SetFloat("Direction",h);
        }
        else// if i am an Npc do this instead.
        {
            if(_agent.enabled)
            {
                SetUpMotion();

            }
        }


        myState = _combat.currentState.ToString();
//      _BaseInfo = _anim.GetCurrentAnimatorStateInfo(0); //reads the current animator state of the base layer.
//      _Layer1Info = _anim.GetCurrentAnimatorStateInfo(1);// as above, but Layer 1.

        if(myState == "Ready")
        {
            _attackInt = 0;
        }
        if(myState == "AttackLight")
        {
            _attackInt = 1;
        }
        if(myState == "AttackHeavy")
        {
            _attackInt = 2;
        }
        if(myState == "AttackCombo")
        {
            _attackInt = 3;
        }

    }

    void LateUpdate()
    {
        if(_combat.isPlayer)
        {
            _anim.SetBool("Grounded",_Move.grounded);
        }
        else
        {
            _anim.SetBool("Grounded",_enemyMove.grounded);
        }

        _anim.SetBool("Hurt",_health.hurt);

        _anim.SetBool("Block", _combat.blocking);
        _anim.SetBool("Grappling", _combat.Grappling);
        _anim.SetBool("Grappled", _combat.grappled);
        if(_combat.grabbedObj !=null)
        {
            _anim.SetBool("Grab",true);
        }
        else{
            _anim.SetBool("Grab",false);
        }
        _anim.SetInteger("AttackType", _attackInt);
    }

    //Protected Nav mesh Shizzle
    protected void SetUpMotion()
    {
        if(AgentDone())
        {
            motion.Do(0,0);
        }
        else
        {
            float speed = _agent.desiredVelocity.magnitude;
            Vector3 velocity = Quaternion.Inverse(transform.rotation) * _agent.desiredVelocity;
            float angle = Mathf.Atan2(velocity.x,velocity.y) * 180.0f / 3.14159f;

            motion.Do(speed,angle);
        }
    }

    protected bool AgentDone()
    {
        return !_agent.pathPending && AgentStopping();
    }

    protected bool AgentStopping()
    {
        return _agent.remainingDistance <= _agent.stoppingDistance;
    }

}