drag

using System.Collections;
using System.Collections.Generic;
using DG.Tweening;
using Sirenix.OdinInspector;
using UnityEngine;

public class DragRigidbody : MonoBehaviour
{

    public float forceAmount = 3000;

    [SerializeField]
    Rigidbody selectedRigidbody;
    [SerializeField]
    Camera targetCamera;
    [SerializeField]
    Vector3 originalScreenTargetPosition;
    [SerializeField]
    Vector3 originalRigidbodyPos;
    [SerializeField]
    float selectionDistance;

    // Start is called before the first frame update
    void Start()
    {
        targetCamera = GetComponent<Camera>();
    }

    void Update()
    {
        if (!targetCamera)
            return;

        if (Input.GetMouseButtonDown(0))
        {
            //Check if we are hovering over Rigidbody, if so, select it
            selectedRigidbody = GetRigidbodyFromMouseClick();

        }
        if (Input.GetMouseButtonUp(0) && selectedRigidbody)
        {
            //Release selected Rigidbody if there any
            selectedRigidbody = null;
        }
    }

    void FixedUpdate()
    {
        if (selectedRigidbody)
        {
            Vector3 mousePositionOffset = targetCamera.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, selectionDistance)) - originalScreenTargetPosition + Vector3.up * 2;
            // Vector3 mousePositionOffset = targetCamera.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, 0, Input.mousePosition.y)) - originalScreenTargetPosition + Vector3.up * 2;
            Vector3 velocityVector =
                (originalRigidbodyPos + mousePositionOffset - selectedRigidbody.transform.position) * forceAmount *
                Time.deltaTime;
            selectedRigidbody.velocity = new Vector3(velocityVector.x, 0,velocityVector.z * 6f);
        }
    }

    Rigidbody GetRigidbodyFromMouseClick()
    {
        RaycastHit hitInfo = new RaycastHit();
        Ray ray = targetCamera.ScreenPointToRay(Input.mousePosition);

        bool hit = Physics.Raycast(ray, out hitInfo);
        if (hit)
        {
            if (hitInfo.collider.gameObject.GetComponent<Rigidbody>())
            {
                selectionDistance = Vector3.Distance(ray.origin, hitInfo.point);
                originalScreenTargetPosition = targetCamera.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, selectionDistance));
                originalRigidbodyPos = hitInfo.collider.transform.position;

                hitInfo.collider.gameObject.transform.DOMove( hitInfo.collider.gameObject.transform.position + Vector3.up
                    , 0.2f);

                return hitInfo.collider.gameObject.GetComponent<Rigidbody>();
            }
        }

        return null;
    }
}