Collisions

using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;

public class CollisionDetection : MonoBehaviour
{
    private void Update()
    {
            if (gameObject.layer == 2)
        {
            Ray ray = Camera.main.ScreenPointToRay(new Vector3(Input.mousePosition.x, Input.mousePosition.y, 1.0f));

            RaycastHit[] hitpoints = Physics.RaycastAll(ray).OrderBy(h => h.distance).ToArray(); //sort by distance
            foreach (RaycastHit hit in hitpoints)
            {
                if (hit.collider.gameObject != this.gameObject)
                {
                    Vector3 newPos = hit.point;
                    transform.position = newPos;
                    break; //stop iterating
                }
            }
        }
    }


    private void OnTriggerEnter(Collider other)
    {
        if (other.gameObject.tag == "Untagged")
        {
            Debug.Log("<i>detected</i> " + other.gameObject.name);
            GameMaster.Instance.isCollided = true;
        }
    }

    private void OnTriggerExit(Collider other)
    {
        if (other.gameObject.tag == "Untagged")
        {
            Debug.Log("<i>OUT </i>" + other.gameObject.name);
            GameMaster.Instance.isCollided = false;
        }
    }

    private void OnCollisionEnter(Collision collision)
    {

    }
}