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

public class DragAndDrop : MonoBehaviour
{   
    private float zCoord;
    private Vector3 mouseOffset;
    
    private void onMouseDown()
    {
        zCoord = Camera.main.WorldToScreenPoint(transform.position).z;
        mouseOffset = transform.position - mouseWorldPos();
    }


    private void onMouseDrag()
    {
        transform.position = mouseWorldPos() + mouseOffset;
    }


    private Vector3 mouseWorldPos()
    {
        Vector3 mPos = Input.mousePosition;
        mPos.z = zCoord;
        return Camera.main.ScreenToWorldPoint(mPos);
    }
}