shaoxiadiablo/Assets/AGame/Scripts/Game/Skill/SpiritSword_p2.cs

// ***********************************************************************
// Assembly         : Game
// Author           : Kimch
// Created          : 2020-08-28
// Description      :
// Last Modified By : 
// Last Modified On : 
// ***********************************************************************
// <copyright file= "SpiritSword_p2" company="Kimch"></copyright>
// <summary></summary>
// ***********************************************************************
namespace G
{
	using UnityEngine;

	public class SpiritSword_p2 : MonoBehaviour
	{
		private bool _fireOn;

		private Transform _target;

		private Transform _parent;

		private Vector3 _targetPos;

		private Vector3 _direction;

		private float _delta;
		private float _moveSpeed;
		private float _rotateSpeed;

		private Collider _collider;
		private TrailRenderer _trail;


		private void Awake()
		{
			_collider = this.GetComponent<Collider>();
			//_trail = GetComponent<TrailRenderer>();
		}

		private void OnEnable()
		{
			_collider.enabled = false;
			_delta = 0f;
			//_trail.enabled = true;
			_fireOn = true;
		}

		private void Start()
		{
			_parent = transform.parent;
			FireSword(_parent);
			transform.parent = null;
			_moveSpeed = Random.Range(1.7f, 1.9f);
			_rotateSpeed = Random.Range(18f, 22f);
		}

		public void FireSword(Transform enemy)
		{
			_collider.enabled = true;
			_target = enemy;
		}

		public void FinishSword()
		{
			_collider.enabled = false;
			_fireOn = false;
			_delta = 0f;
		}

		private void Update()
		{
			if (_fireOn)
			{
				Vector3 position = transform.position;
				if (position.y > 0f)
				{
					if (_target == _parent)
					{
						_delta = 0.2f;
					}
					else if (_delta < 2f)
					{
						_delta += Time.deltaTime;
					}
					else
					{
						_delta = 2f;
					}

					if (_target != null)
					{
						_targetPos = _target.position;
					}
					else
					{
						_target = _parent;
					}
					_direction = _targetPos - position;
					if (_direction != Vector3.zero)
					{
						transform.rotation = Quaternion.Lerp(transform.rotation, Quaternion.LookRotation(_direction), _delta * _rotateSpeed * Time.deltaTime);
					}

					transform.Translate(Vector3.forward * (_moveSpeed * Time.deltaTime));
					//transform.position = position + transform.forward * (_speed * Time.deltaTime);
				}
				else
				{
					_collider.enabled = false;
					_target = _parent;
					transform.forward = Vector3.up;
					transform.position = position + Vector3.up * (1.8f * Time.deltaTime);
					_delta = 0f;
				}
			}
			else
			{
				transform.forward = Vector3.up;
				Vector3 position = transform.position;
				position += Vector3.up * (1.8f * Time.deltaTime);
				transform.position = position;
				if (position.y > 1f)
				{
					this.gameObject.SetActive(false);
					//_trail.enabled = false;
				}
			}
		}
	}
}