DemoMultipleReceivers.cs

using System;
using System.Windows.Forms;
using SynchronousMessageSystem;

namespace DemoApplication;

public partial class DemoMultipleReceivers : Form
{
    private ActorSystem ActorSystem { get; }

    public DemoMultipleReceivers()
    {
        InitializeComponent();
        // 1. Create the actor system.
        ActorSystem = new ActorSystem();
    }

    private void DemoMultipleReceivers_Load(object sender, EventArgs e)
    {
        // 2. Create the actors.
        ActorSystem.AddActor(new Actor1D());
        ActorSystem.AddActor(new Actor2D());
        ActorSystem.AddActor(new Actor3D());
    }

    private void button1_Click(object sender, EventArgs e)
    {
        // 5. Send a string to Actor2d.
        ActorSystem.GetActor<Actor1D>()!.SendMessage();
    }
}

public class Actor1D : Actor
{
    public void SendMessage()
    {
        Talk("Hello!");
    }

    public override void Other(Actor sender, ActorMatch? address, object message)
    {
    }
}

public class Actor2D : Actor
{
    public Actor2D()
    {
        // 3. Register for string messages.
        MatchList.Add(new ActorMatch(typeof(string), StringReceiver1));
        MatchList.Add(new ActorMatch(typeof(string), StringReceiver2));
    }

    public override void Other(Actor sender, ActorMatch? address, object message)
    {
    }

    private void StringReceiver1(Actor sender, ActorMatch address, object message)
    {
        MessageBox.Show($@"String receiver 1 in {GetType().Name} got: {message}");
    }

    private void StringReceiver2(Actor sender, ActorMatch address, object message)
    {
        MessageBox.Show($@"String receiver 2 in {GetType().Name} got: {message}");
    }
}

public class Actor3D : Actor
{
    public Actor3D()
    {
        // 4. Also register for string messages.
        MatchList.Add(new ActorMatch(typeof(string), StringReceiver));
    }

    public override void Other(Actor sender, ActorMatch? address, object message)
    {
    }

    private void StringReceiver(Actor sender, ActorMatch address, object message)
    {
        MessageBox.Show($@"String receiver in {GetType().Name} got: {message}");
    }
}