kernel.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

/*
 * This code is based on Broken Sword 2.5 engine
 *
 * Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
 *
 * Licensed under GNU GPL v2
 *
 */

/*
 * BS_Kernel
 * ---------
 * This is the main class of the engine.
 * This class creates and manages all other Engine elements: the sound engine, graphics engine ...
 * It is not necessary to release all the items individually, this is performed by the Kernel class.
 *
 * Autor: Malte Thiesen
 */

#ifndef SWORD25_KERNEL_H
#define SWORD25_KERNEL_H

#include "common/scummsys.h"
#include "common/random.h"
#include "common/stack.h"
#include "common/textconsole.h"
#include "common/util.h"
#include "engines/engine.h"

#include "sword25/kernel/common.h"
#include "sword25/kernel/resmanager.h"

namespace Sword25 {

// Class definitions
class Service;
class Geometry;
class GraphicEngine;
class ScriptEngine;
class SoundEngine;
class InputEngine;
class PackageManager;
class MoviePlayer;

class Kernel {
public:

    uint getMilliTicks();

    bool getInitSuccess() const {
        return _initSuccess;
    }
    ResourceManager *getResourceManager() {
        return _resourceManager;
    }
    int getRandomNumber(int min, int max);
    GraphicEngine *getGfx();
    SoundEngine *getSfx();
    InputEngine *getInput();
    PackageManager *getPackage();
    ScriptEngine *getScript();

    MoviePlayer *getFMV();

    void sleep(uint msecs) const;

    static Kernel *getInstance() {
        if (!_instance)
            _instance = new Kernel();
        return _instance;
    }

    static void deleteInstance() {
        if (_instance) {
            delete _instance;
            _instance = NULL;
        }
    }

    void crash() const {
        error("Kernel::Crash");
    }

private:
    // -----------------------------------------------------------------------------
    // Constructor / destructor
    // Private singleton methods
    // -----------------------------------------------------------------------------

    Kernel();
    virtual ~Kernel();

    // -----------------------------------------------------------------------------
    // Singleton instance
    // -----------------------------------------------------------------------------
    static Kernel *_instance;

    bool _initSuccess; // Specifies whether the engine was set up correctly

    // Random number generator
    // -----------------------
    Common::RandomSource _rnd;

    // Resourcemanager
    // ---------------
    ResourceManager *_resourceManager;

    GraphicEngine *_gfx;
    SoundEngine *_sfx;
    InputEngine *_input;
    PackageManager *_package;
    ScriptEngine *_script;
    Geometry *_geometry;
    MoviePlayer *_fmv;

    bool registerScriptBindings();
};

} // End of namespace Sword25

#endif