using Thousandto.Core.Asset;
using UnityEngine;

namespace Thousandto.Code.Logic
{
    //受击闪烁器
    public class HitBlinker
    {
        #region//私有变量
        private float _timer = 0f;
        private float _lifeTime = 0f;
        private float _power = 0f;
        private Color _color = Color.white;
        private AnimationCurve _curve = null;
        private FSkinModel _handleSkin = null;

        private bool _running = false;
        #endregion

        #region//属性
        public bool IsRunning
        {
            get
            {
                return _running;
            }
        }
        #endregion

        #region//公有函数
        public void Start(float time, float power, Color color, AnimationCurve curve, FSkinModel skin)
        {
            if (time <= 0f || curve == null || skin == null)
                return;
            if (skin.SkinStatus == FSkinStatusCode.Dead)
                return;

            _timer = 0f;
            _lifeTime = time;
            _power = power;
            _color = color;
            _curve = curve;
            _handleSkin = skin;

            _handleSkin.SetStatus(FSkinStatusCode.BeHit);
            _handleSkin.SetColor(FSkinPartCode.Body, ShaderPropertyIDDefine.RimColor, _color);
            _handleSkin.SetFloat(FSkinPartCode.Body, ShaderPropertyIDDefine.RimPower, (1f - _curve.Evaluate(0f)) * _power);

            _running = true;
        }

        public void Update(float dt)
        {
            if (!_running)
                return;
            _timer += dt;
            if (_timer >= _lifeTime)
            {
                _running = false;
            }
            _handleSkin.SetFloat(FSkinPartCode.Body, ShaderPropertyIDDefine.RimPower, (1f - _curve.Evaluate(_timer / _lifeTime)) * _power);
            if (!_running)
            {
                if (_handleSkin.SkinStatus == FSkinStatusCode.BeHit)
                {
                    _handleSkin.SetStatus(FSkinStatusCode.Normal);
                }
                _handleSkin = null;
            }
        }
        #endregion
    }
}