using UnityEngine;
using UnityEngine.UI;

public class MoveByMouse2DPress : MonoBehaviour
{
    public float moveSpeed = 3.0f;

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