using System;
using UnityEngine;

public class GameManager : MonoBehaviour
{
	#region Statication

	public static GameManager instance;

	private void Awake()
	{
		if (instance != null && instance != this)
		{
			Destroy(gameObject);
			return;
		}
		DontDestroyOnLoad(this);
		instance = this;
	}

	#endregion
	//this is just for general functions and variables that will be reused
	public Camera camera;
	public GameObject pauseMenu;
	public Vector3 GetMouseWorldPos()
	{
		return camera.ScreenToWorldPoint(Input.mousePosition);
	}
	
	public void SetPause(bool state)
	{
		if (state)
		{
			Time.timeScale = 0f;
		}
		else
		{
			Time.timeScale = 1f;
		}
	}

	public void SetPauseMenu()
	{
		if (!pauseMenu.activeSelf)
		{
			SetPause(true);
			pauseMenu.SetActive(true);
		}
		else
		{
			pauseMenu.SetActive(false);
			SetPause(false);
		}
	}

	private void Update()
	{
		if (Input.GetKeyDown(KeyCode.Escape))
		{
			SetPauseMenu();
		}
	}
}