MediatorSharp

MediatorSharp

A basic implementation of the Mediator design pattern that is used to promote decoupling between different systems, as described here.

Usage

Create an instance of the MessageService class when your application first starts. Then, when creating your systems, inject the MessageService instance as a dependency. Systems can then subscribe to a specific message type by providing a function callback and the message type:

_messageService.Subscribe(ApplicationStarted, MessageType.ApplicationStarted);

To send messages between systems you simply need to send an IMessage to the MessageService:

 _messageService.SendMessage(new EmptyMessage(MessageType.ApplicationStarted));

In the callback function of a subscribed system, the IMessage can be cast into whatever data type your system requires:

private void ReceiveStringMessage(IMessage obj)
{
    StringMessage msg = (StringMessage) obj;
    Debug.Log("Receive message: " + msg.String)
}

Additional message types can be constructing by defining more values in the MessageType enum and by also creating classes that inherit from IMessage.