using System.Collections;
using System.Collections.Generic;
using UnityEngine;
namespace BITKit
{
    public interface IClosePoint
    {
        bool TryGetClosePoint(out Vector3 vector3);
    }
    [System.Serializable]
    public class GetClosePointFromCollider : IClosePoint
    {
        public Transform root;
        public LayerMask layerMask;
        public float distance;
        public bool TryGetClosePoint(out Vector3 vector3)
        {
            vector3 = default;
            if (UnityEngine.Physics.Raycast(root.position, root.forward, out var raycastHit, distance, layerMask))
            {
                var collider = raycastHit.collider;
                switch (collider)
                {
                    case MeshCollider meshCollider:
                        if (meshCollider.convex is false)
                            return false;
                        break;
                }
                vector3 = collider.ClosestPoint(root.position + Vector3.up);
                var top = collider.bounds.center + collider.bounds.extents;

                if (Mathf.Abs(vector3.y - top.y) > 0.16f) return false;

                if (UnityEngine.Physics.Linecast(root.position, vector3, out var raycastHit2, layerMask))
                {
                    if(raycastHit2.collider != collider)
                        return false;
                };
                return true;
                //return vector3.y >= collider.bounds.center.y + collider.bounds.extents.y;
                //return true;
            }
            return false;
        }
    }
}