public class PauseMenu : MonoBehaviour
{

    public static bool GameIsPaused = false;
    public GameObject pauseMenuUI;
    public GameObject optionsMenuUI;

    void Update()
    {
        if (Input.GetKeyDown(KeyCode.Escape))
        {
            if (GameIsPaused)
            {
                Resume();
            } else 
            {
                Pause();
            }
        }
    }

    void Pause()
    {
        pauseMenuUI.SetActive(true);
        Time.timeScale = 0f;
        GameIsPaused = true;
    }

    public void Resume()
    {
        Time.timeScale = 1f;
        GameIsPaused = false;
    }

    public void LoadOptions()
    {
        optionsMenuUI.SetActive(true);
        Time.timeScale = 0f;
        GameIsPaused = true;
    }

    public void Quit()
    {
        Time.timeScale = 1f;
        SceneManager.LoadScene("MainMenu");
    }
}