using UnityEngine;
using UnityEngine.UI;

public class PauseMenu : MonoBehaviour
{
	private Toggle m_MenuToggle;

	private float m_TimeScaleRef = 1f;

	private float m_VolumeRef = 1f;

	private bool m_Paused;

	private void Awake()
	{
		m_MenuToggle = GetComponent<Toggle>();
	}

	private void MenuOn()
	{
		m_TimeScaleRef = Time.timeScale;
		Time.timeScale = 0f;
		m_VolumeRef = AudioListener.volume;
		AudioListener.volume = 0f;
		m_Paused = true;
	}

	public void MenuOff()
	{
		Time.timeScale = m_TimeScaleRef;
		AudioListener.volume = m_VolumeRef;
		m_Paused = false;
	}

	public void OnMenuStatusChange()
	{
		if (m_MenuToggle.isOn && !m_Paused)
		{
			MenuOn();
		}
		else if (!m_MenuToggle.isOn && m_Paused)
		{
			MenuOff();
		}
	}

	private void Update()
	{
		if (Input.GetKeyUp(KeyCode.Escape))
		{
			m_MenuToggle.isOn = !m_MenuToggle.isOn;
			Cursor.visible = m_MenuToggle.isOn;
		}
	}
}