using System;
using System.Collections;
using Convention;
using UnityEngine;

namespace Demo.Game
{
    public abstract class BasicSplineJustFollow : Updatement<float>
    {
        public SplineCore MySplineCore;

        protected override float Lerp(float begin, float end, float t)
        {
            return Mathf.Lerp(begin, end, t);
        }

        protected override abstract void UpdateData(float data);

        public override IEnumerator LoadScript(string script)
        {
            yield return base.LoadScript(script);
        }

        public override IEnumerator UnloadScript()
        {
            MySplineCore = null;
            yield return base.UnloadScript();
        }

        /// <summary>
        /// 新增
        /// </summary>
        /// <param name="time">插值时间</param>
        /// <param name="value"></param>
        /// <param name="curveType">可取值为30种缓动曲线</param>
        [Convention.RScript.Variable.Attr.Method]
        public void Add(string time, string value, string curveType)
        {
            ManualAddEntry(time, float.Parse(value), Enum.Parse<MathExtension.EaseCurveType>(curveType));
        }

        /// <summary>
        /// 如未加载则加载，然后绑定到样条线
        /// </summary>
        /// <param name="path">脚本位置</param>
        [Convention.RScript.Variable.Attr.Method]
        public IEnumerator Load(string path)
        {
            MySplineCore = FindWithPath(path, false) as SplineCore;
            if (MySplineCore == null)
            {
                yield return DoLoadSubScriptAsync(nameof(SplineCore), path, x =>
                {
                    MySplineCore = x as SplineCore;
                });
            }
        }
    }
}