using UnityEngine;
using UnityEngine.UI;

public class MoveByMouse2D : MonoBehaviour
{
    public GameObject obj;
    public float speed = 1.5f;
    Vector3 target;

    void Start()
    {
        target = transform.position;
    }

    void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            target = Camera.main.ScreenToWorldPoint(Input.mousePosition);
            target.z = transform.position.z;
            Vector2 direction = new Vector2(target.x - transform.position.x,
            target.y - transform.position.y);
            obj.transform.up = direction;
        }
        transform.position = Vector3.MoveTowards(transform.position, target, speed * Time.deltaTime);
    }
}