Question

我第一次使用Timers，我需要调用在Main中声明的类的实例。我的节目是Quiddich游戏，这是我的主。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Timers;
using System.Threading.Tasks;

namespace QuiddichGame
{
    class Program
    {
        private static Timer aTimer = new Timer(1000);
        static void Main(string[] args)
        {

            aTimer.Interval = 1000;
            aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
            aTimer.Start();

            Championship champ = new Championship();
            game.GenerateTeams();
            Game game = new Game(champ.teams[0], champ.teams[1]);

            juego.CrearDisplay();
            game.CreateField();

            while (true) { int a = 1; }
        }

        //Actualization
        static private void OnTimedEvent(object source, ElapsedEventArgs e)
        {
            //HOW DO I CALL THE "game" INSTANCE IN HERE??
        }
    }
}

Answer 1

实际上，不要将Game作为Program类的字段。

相反，请使用System.Threading.Timer，其中包含一个带object state的构造函数。

Game game = //...;
Timer t= new Timer(OnTimedEvent, game, 1000, 1000);

使用此签名定义您的callback：

static private void OnTimedEvent(object state)
{
    Game game = state as Game;
    if(game != null)
    { 
        //...
    }    
}

Answer 2

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Timers;
using System.Threading.Tasks;

namespace QuiddichGame
{
    class Program
    {
        private static Game game
        private static Timer aTimer = new Timer(1000);
        static void Main(string[] args)
        {

            aTimer.Interval = 1000;
            aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
            aTimer.Start();

            Championship champ = new Championship();
            game.GenerateTeams();// this should not be here
            Game game = new Game(champ.teams[0], champ.teams[1]);

            juego.CrearDisplay();
            game.CreateField();

            while (true) { int a = 1; }
        }

        //Actualization
        static private void OnTimedEvent(object source, ElapsedEventArgs e)
        {
            //HOW DO I CALL THE "game" INSTANCE IN HERE??
        }
    }
}

Answer 3

你只需要在班级定义游戏：

class Program
{
    private static Timer aTimer = new Timer(1000);

    //Define your game in the class
    private static Game game;

    static void Main(string[] args)
    {

        aTimer.Interval = 1000;
        aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
        aTimer.Start();

        Championship champ = new Championship();
        game.GenerateTeams();
        game = new Game(champ.teams[0], champ.teams[1]);

        juego.CrearDisplay();
        game.CreateField();

        while (true) { int a = 1; }
    }

    //Actualization
    static private void OnTimedEvent(object source, ElapsedEventArgs e)
    {
        game.DoSomething();
    }

在Timer Event上从外部方法调用Main中的实例

3 个答案: