设置暂停ui

using UnityEngine;
using System.Collections;

public class GamePause : MonoBehaviour {

    
    void OnMouseUpAsButton()
    {
        //用GameManager里的TransformGameState方法去调用按钮功能
        GameManager._instance.TransformGameState();
    }
}

public enum GameState//枚举两个游戏状态
{
    Running,
    Pause
}
public class GameManager : MonoBehaviour
{
    public GameState gameState=GameState.Running;//声明一个共有变量存储游戏状态，默认为运行
    public GameObject gamePuase;
    public GameObject gameContinue;

 void Start()
    {
        gameContinue.SetActive(false);
        gamePuase.SetActive(true);
    }

 public void TransformGameState()
    {
        if (gameState==GameState.Running)
        {PuaseGame();
        gameContinue.SetActive(true);
        gamePuase.SetActive(false);
        }
        else if (gameState==GameState.Pause)
        {
            ContinueGame();
            gameContinue.SetActive(false);
            gamePuase.SetActive(true);
        }
    }
    public void PuaseGame()
    {
        
        Time.timeScale = 0;//将时间暂停
        gameState=GameState.Pause;
    }

    public void ContinueGame()
    {
       
        Time.timeScale = 1;//开始时间
        gameState=GameState.Running;
    }
}

 if (isMouseDown&&GameManager._instance.gameState==GameState.Running)