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/* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/scummsys.h"
#include "common/config-manager.h"
#include "common/debug-channels.h"
#include "common/events.h"
#include "common/file.h"
#include "engines/util.h"
#include "graphics/scaler.h"
#include "graphics/thumbnail.h"
#include "glk/glk.h"
#include "glk/blorb.h"
#include "glk/conf.h"
#include "glk/events.h"
#include "glk/picture.h"
#include "glk/screen.h"
#include "glk/selection.h"
#include "glk/sound.h"
#include "glk/streams.h"
#include "glk/windows.h"
namespace Glk {
GlkEngine *g_vm;
GlkEngine::GlkEngine(OSystem *syst, const GlkGameDescription &gameDesc) :
_gameDescription(gameDesc), Engine(syst), _random("Glk"), _blorb(nullptr),
_clipboard(nullptr), _conf(nullptr), _events(nullptr), _pictures(nullptr),
_screen(nullptr), _selection(nullptr), _sounds(nullptr), _windows(nullptr),
_copySelect(false), _terminated(false), gli_unregister_obj(nullptr),
gli_register_arr(nullptr), gli_unregister_arr(nullptr) {
g_vm = this;
}
GlkEngine::~GlkEngine() {
delete _blorb;
delete _clipboard;
delete _conf;
delete _events;
delete _pictures;
delete _screen;
delete _selection;
delete _sounds;
delete _streams;
delete _windows;
}
void GlkEngine::initialize() {
// Set up debug channels
DebugMan.addDebugChannel(kDebugCore, "core", "Core engine debug level");
DebugMan.addDebugChannel(kDebugScripts, "scripts", "Game scripts");
DebugMan.addDebugChannel(kDebugGraphics, "graphics", "Graphics handling");
DebugMan.addDebugChannel(kDebugSound, "sound", "Sound and Music handling");
initGraphicsMode();
_conf = new Conf(getInterpreterType());
_screen = createScreen();
_screen->initialize();
_clipboard = new Clipboard();
_events = new Events();
_pictures = new Pictures();
_selection = new Selection();
_sounds = new Sounds();
_streams = new Streams();
_windows = new Windows(_screen);
}
Screen *GlkEngine::createScreen() {
return new Screen();
}
void GlkEngine::initGraphicsMode() {
uint width = ConfMan.hasKey("width") ? ConfMan.getInt("width") : 640;
uint height = ConfMan.hasKey("height") ? ConfMan.getInt("height") : 480;
Common::List<Graphics::PixelFormat> formats = g_system->getSupportedFormats();
Graphics::PixelFormat format = formats.front();
for (Common::List<Graphics::PixelFormat>::iterator i = formats.begin(); i != formats.end(); ++i) {
if ((*i).bytesPerPixel > 1) {
format = *i;
break;
}
}
initGraphics(width, height, &format);
}
Common::Error GlkEngine::run() {
// Open up the game file
Common::String filename = getFilename();
if (!Common::File::exists(filename))
return Common::kNoGameDataFoundError;
if (Blorb::isBlorb(filename)) {
// Blorb archive
_blorb = new Blorb(filename, getInterpreterType());
SearchMan.add("blorb", _blorb, 99, false);
if (!_gameFile.open("game", *_blorb))
return Common::kNoGameDataFoundError;
} else {
// Check for a secondary blorb file with the same filename
Common::String baseName = filename;
while (baseName.contains('.'))
baseName.deleteLastChar();
if (Common::File::exists(baseName + ".blorb")) {
_blorb = new Blorb(baseName + ".blorb", getInterpreterType());
SearchMan.add("blorb", _blorb, 99, false);
} else if (Common::File::exists(baseName + ".blb")) {
_blorb = new Blorb(baseName + ".blb", getInterpreterType());
SearchMan.add("blorb", _blorb, 99, false);
}
// Open up the game file
if (!_gameFile.open(filename))
return Common::kNoGameDataFoundError;
}
// Perform initialization
initialize();
// Play the game
runGame();
return Common::kNoError;
}
Common::Error GlkEngine::loadGame() {
frefid_t ref = _streams->createByPrompt(fileusage_BinaryMode | fileusage_SavedGame,
filemode_Read, 0);
if (ref == nullptr)
return Common::kReadingFailed;
int slotNumber = ref->_slotNumber;
_streams->deleteRef(ref);
return loadGameState(slotNumber);
}
Common::Error GlkEngine::saveGame() {
frefid_t ref = _streams->createByPrompt(fileusage_BinaryMode | fileusage_SavedGame,
filemode_Write, 0);
if (ref == nullptr)
return Common::kWritingFailed;
int slot = ref->_slotNumber;
Common::String desc = ref->_description;
_streams->deleteRef(ref);
return saveGameState(slot, desc);
}
Common::Error GlkEngine::loadGameState(int slot) {
FileReference ref(slot, "", fileusage_SavedGame | fileusage_TextMode);
strid_t file = _streams->openFileStream(&ref, filemode_Read);
if (file == nullptr)
return Common::kReadingFailed;
Common::Error result = loadGameData(file);
file->close();
return result;
}
Common::Error GlkEngine::saveGameState(int slot, const Common::String &desc) {
Common::String msg;
FileReference ref(slot, desc, fileusage_BinaryMode | fileusage_SavedGame);
strid_t file = _streams->openFileStream(&ref, filemode_Write);
if (file == nullptr)
return Common::kWritingFailed;
Common::Error result = saveGameData(file, desc);
file->close();
return result;
}
} // End of namespace Glk
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