using System.Collections.Generic;
using UnityEngine;

namespace Core.Utility
{
    public class BesselPathGroup
    {
        public float lane;
        public List<BesselPath> allBesselPath = new List<BesselPath>();

        public void AddBesselPath(BesselPath besselPath)
        {
            allBesselPath.Add(besselPath);
        }

        public void Start()
        {
            lane = 0;
            for (int i = 0; i < allBesselPath.Count; i++)
            {
                BesselPath besselPath = allBesselPath[i];
                besselPath.SetLengthAtT();
                lane += besselPath.allDis;
            }
        }

        public Vector3 CalculatePoint(float t)
        {
            // BesselPath currBeselPath = null;
            float currLane = 0;
            for (int i = 0; i < allBesselPath.Count; i++)
            {
                BesselPath besselPath = allBesselPath[i];
                float allLane = currLane;
                allLane += besselPath.allDis;
                float b = allLane / lane;
                if (t <= b)
                {
                    float lasetB = currLane / lane;
                    b -= lasetB;
                    t -= lasetB;
                    float currB = t / b;
                    return besselPath.CalculatePoint(currB);
                }

                currLane = allLane;
            }


            return Vector3.zero;
        }
    }
}