// ***********************************************************************
// Assembly         : Game
// Author           : Kimch
// Created          : 2020-09-02
// Description      :
// Last Modified By : 
// Last Modified On : 
// ***********************************************************************
// <copyright file= "Skill_SpiritSword" company="Kimch"></copyright>
// <summary></summary>
// ***********************************************************************
namespace G
{
	using UnityEngine;

	/// <summary>
	/// 幽灵剑
	/// </summary>
	public class SkillSpiritSword : MonoBehaviour
	{
		public Transform sword;

		protected Transform _transform;
		protected Collider _collider;
		protected Transform _cha1;
		protected Transform _oldTarget;

		protected int _swordIndex;
		protected float _startDelay;
		protected int _createIndex;
		protected bool _createFinish;
		protected bool _homing = true;

		protected float _power;

		protected float _liftTime;
		protected int _swordCount;

		protected int _hitCount;
		protected int _hitCountMax;

		public float lifeTime
		{
			set { _liftTime = value; }
		}

		public int swordCount
		{
			get { return _swordCount; }
			set { _swordCount = value; }
		}

		public int maxHitCount
		{
			set { _hitCountMax = value; }
		}

		public float power
		{
			set { _power = value; }
		}

		const int MAX_SWORD_COUNT = 7;

		#region Field

		private Transform[] _swords = new Transform[MAX_SWORD_COUNT];

		#endregion

		#region Unity

		private void Awake()
		{
			_transform = this.transform;
			_collider = this.GetComponent<Collider>();
			_cha1 = GameObject.FindWithTag("Player").transform;
		}

		private void OnEnable()
		{
			Reset();
		}

		public void Reset()
		{
			_collider.enabled = false;

			_startDelay = 0f;
			_createIndex = 0;
			_swordIndex = 0;
			_createFinish = false;
			_homing = false;
			_hitCount = 0;
		}

		private void OnTriggerEnter(Collider other)
		{
			if (other.gameObject.layer == GameLayer.UnitLayer && !_homing && (_oldTarget != other.transform))
			{
				_swords[_swordIndex].GetComponent<SpiritSword_p1>().FireSword(other.transform);
				_oldTarget = other.transform;
				_swordIndex++;
				_collider.enabled = false;
				_startDelay = 0f;
				_homing = true;

				if (_swordIndex >= _swordCount)
				{
					this.gameObject.SetActive(false);
					_transform.position = Vector3.up * 31f;
				}
			}
		}

		private void Update()
		{
			if (!_createFinish)
			{
				if (_startDelay > 0.1f)
				{
					_startDelay = 0f;
					if (_swords[_createIndex] == null)
					{
						Vector3 position = _transform.position;
						float angle = 30 * _createIndex;
						Vector3 eulerAngles = _transform.eulerAngles;
						_swords[_createIndex] = Object.Instantiate(sword, position, Quaternion.Euler(0f, angle + eulerAngles.y - 270f, 0f));
						_swords[_createIndex].GetComponent<Rigidbody>().mass = _power;
						_swords[_createIndex].position += _swords[_createIndex].forward * 0.1f;
						_swords[_createIndex].forward = Vector3.up + _transform.forward * 0.6f;
					}
					else
					{
						_swords[_createIndex].GetComponent<Rigidbody>().mass = _power;
						_swords[_createIndex].position = _transform.position;
						float angle = 30 * _createIndex;
						Vector3 eulerAngles = _transform.eulerAngles;
						_swords[_createIndex].rotation = Quaternion.Euler(0f, angle + eulerAngles.y - 270f, 0f);
						_swords[_createIndex].gameObject.SetActive(true);
						_swords[_createIndex].position += _swords[_createIndex].forward * 0.1f;
						_swords[_createIndex].forward = Vector3.up + _transform.forward * 0.6f;
					}
					_swords[_createIndex].parent = _transform;
					if (++_createIndex >= _swordCount)
					{
						_createFinish = true;
					}
				}
				else
				{
					_startDelay += Time.deltaTime;
				}
			}
			else if (_startDelay > 0.4f)
			{
				_homing = false;
				_collider.enabled = true;
				_startDelay = -1f;
			}
			else if (_startDelay > -1f)
			{
				_startDelay += Time.deltaTime;
			}
			else
			{
				_startDelay -= Time.deltaTime;
				if (_startDelay < -2f)
				{
					_collider.enabled = false;
					_collider.enabled = true;
					_oldTarget = null;
				}
			}
			_transform.position = _cha1.position + Vector3.up * 0.2f;
			_transform.rotation = Quaternion.Lerp(_transform.rotation, _cha1.rotation, Time.deltaTime * 3f);
		}

		#endregion
	}
}