public class Escape : MonoBehaviour
{
    public static bool gameispaused = false;
    public GameObject  pauseMenuUI;
    void update()
    {
        Debug.Log("update");
        if (Input.GetKeyDown("l"))
        {
            Debug.Log("Escape is pressed");

            if (gameispaused)
            {
                Debug.Log("Escape is pressed");
                resume();
            }
            else
            {
                Debug.Log("Escape is pressed");
                Pause();
            }
        }

    }

    void resume ()
    {
        pauseMenuUI.SetActive(false);
        Time.timeScale = 1f;
        gameispaused = false;
    }
    void Pause ()
    {
        pauseMenuUI.SetActive(true);
        Time.timeScale = 0f;
        gameispaused = true;
    }
}