//===========================================================================//
// File:	watcher.hpp                                                         //
// Project: MUNGA           Brick: Watcher											  //
// Contents: 						  															  //
//---------------------------------------------------------------------------//
//   Date    Who  Modification                                               //
// --------  ---  -----------------------------------------------------------//
// 3/02/97  JMA  Initial coding.															  //
//---------------------------------------------------------------------------//
// Copyright (C) 1997, Virtual World Entertainment, Inc.                     //
// All Rights reserved worldwide                                             //
// This unpublished sourcecode is PROPRIETARY and CONFIDENTIAL               //
//===========================================================================//

#pragma once

#include "Adept.hpp"
#include "Channel.hpp"

namespace Adept {

	class Entity;
	class Entity__ClassData;
	class StateEngine;

	//##########################################################################
	//############################  StateWatcher  ##############################
	//##########################################################################

	class StateWatcher:
		public ChannelOf<int>
	{
	public:
		static void
			InitializeClass();
		static void
			TerminateClass();

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Constructor/Destructor
	//
	public:
		~StateWatcher();

		static StateWatcher*
			Make(
				MemoryStream *stream,
				ComponentWeb *owning_web,
				Entity *entity
			);

	protected:
		StateWatcher(
			ClassData *class_data,
			MemoryStream *stream,
			ComponentWeb *owning_web,
			Entity *entity
		);

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Virtual data
	//
	public:
		static ClassData
			*DefaultData;

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Data flow
	//
	public:
		void
			Execute();

	protected:
		StateEngine
			*stateEngine;
		int
			oldStateMatch,
			newStateMatch;

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Tool Support
	//
	public:
		static ClassData*
			CreateFactoryRequest(
				FactoryRequestParameters *parameters,
				Entity__ClassData *class_data
			);

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Test Support
	//
	public:
		void
			TestInstance();
	};

}