// ***********************************************************************
// Assembly         : Game
// Author           : Kimch
// Created          : 2020-09-02
// Description      :
// Last Modified By : 
// Last Modified On : 
// ***********************************************************************
// <copyright file= "AI_Ride_Enemy2" company="Kimch"></copyright>
// <summary></summary>
// ***********************************************************************
using UnityEngine;

namespace G
{
    public class AI_Ride_Enemy2 : MonoBehaviour
    {
        #region Field

        public Transform bullet;

        private Transform _cha1;
        private Transform _bullet;
        private bool _live;
        private bool _impact;
        private float _rotLimit;
        private float _rotSpeed;

        #endregion

        #region Method

        public void Attack()
        {
            if (_live)
            {
                this.GetComponent<Animation>().Play("ride_mon_shoot");
                var temp = this.GetComponent<Animation>().PlayQueued("ride_mon_shoot_i");
                temp.speed = 0.25f;
                temp.layer = 1;
            }
        }

        public void Wake()
        {
            _live = true;
        }

        public void Defeat()
        {
            _live = false;
        }

        void PlayAnim(string anim)
        {
            this.GetComponent<Animation>().Play(anim);
        }

        bool IsPlaying(string anim)
        {
            return this.GetComponent<Animation>().IsPlaying(anim);
        }

        #endregion

        #region Unity

        private void Awake()
        {
        }

        private void Start()
        {
            _cha1 = GameObject.FindWithTag("Player").transform;
            this.GetComponent<Animation>()["ride_mon"].speed = 0.25f;
            this.GetComponent<Animation>()["ride_mon_shoot"].speed = 0.25f;
            this.GetComponent<Animation>()["ride_mon_shoot"].layer = 1;
            PlayAnim("ride_mon");
            InvokeRepeating(nameof(Attack), 4f, Random.Range(3f, 5f));

            _bullet = Object.Instantiate(bullet, Vector3.one * 10f, Quaternion.identity);
            _bullet.gameObject.SetActive(false);
        }

        private void Update()
        {
            if (!_live)
            {
                return;
            }

            if (IsPlaying("ride_mon_shoot_i"))
            {
                _rotLimit = -1f;
                _rotSpeed = 8f;
                if (!_impact)
                {
                    _bullet.gameObject.SetActive(true);
                    _bullet.position = transform.position + Vector3.up * 0.08f;
                    _bullet.rotation = transform.rotation;
                    _impact = true;
                }
            }
            else if (IsPlaying("ride_mon_shoot"))
            {
                _rotLimit = -1f;
                _rotSpeed = 8f;
                _impact = false;
            }
            else if (IsPlaying("ride_mon"))
            {
                _rotLimit = 0f;
                _rotSpeed = 4f;
            }

            var targetDir = _cha1.position - transform.position;
            targetDir.y = 0f;
            targetDir = Vector3.Normalize(targetDir);
            if (targetDir.z > _rotLimit)
            {
                transform.forward = Vector3.Lerp(transform.forward, targetDir, Time.deltaTime * _rotSpeed);
            }
            else
            {
                transform.forward = Vector3.Lerp(transform.forward, Vector3.forward, Time.deltaTime * 6f);
            }
        }

        #endregion
    }

}