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engines/lab/lab.cpp

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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 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 Labyrinth of Time code with assistance of
+ *
+ * Copyright (c) 1993 Terra Nova Development
+ * Copyright (c) 2004 The Wyrmkeep Entertainment Co.
+ *
+ */
+
+#include "common/config-manager.h"
+#include "common/debug-channels.h"
+#include "common/error.h"
+#include "common/file.h"
+
+#include "engines/util.h"
+
+#include "lab/lab.h"
+
+#include "lab/anim.h"
+#include "lab/console.h"
+#include "lab/dispman.h"
+#include "lab/eventman.h"
+#include "lab/image.h"
+#include "lab/interface.h"
+#include "lab/music.h"
+#include "lab/processroom.h"
+#include "lab/resource.h"
+#include "lab/speciallocks.h"
+#include "lab/utils.h"
+
+namespace Lab {
+LabEngine::LabEngine(OSystem *syst, const ADGameDescription *gameDesc)
+ : Engine(syst), _gameDescription(gameDesc), _extraGameFeatures(0) {
+	_lastWaitTOFTicks = 0;
+
+	_isHiRes = false;
+	_roomNum = -1;
+	for (int i = 0; i < MAX_CRUMBS; i++) {
+		_breadCrumbs[i]._crumbRoomNum = 0;
+		_breadCrumbs[i]._crumbDirection = kDirectionNorth;
+	}
+
+	_numCrumbs = 0;
+	_droppingCrumbs = false;
+	_followingCrumbs = false;
+	_followCrumbsFast = false;
+	_isCrumbTurning = false;
+	_isCrumbWaiting = false;
+	_noUpdateDiff = false;
+	_quitLab = false;
+	_mainDisplay = true;
+
+	_numInv = 0;
+	_manyRooms = 0;
+	_direction = 0;
+	_highestCondition = 0;
+	_crumbTimestamp = 0;
+	_maxRooms = 0;
+
+	_event = nullptr;
+	_interface = nullptr;
+	_resource = nullptr;
+	_music = nullptr;
+	_anim = nullptr;
+	_closeDataPtr = nullptr;
+	_conditions = nullptr;
+	_graphics = nullptr;
+	_rooms = nullptr;
+	_roomsFound = nullptr;
+	_specialLocks = nullptr;
+	_utils = nullptr;
+	_journalBackImage = nullptr;
+
+	_lastTooLong = false;
+	_alternate = false;
+
+	for (int i = 0; i < 20; i++)
+		_moveImages[i] = nullptr;
+
+	for (int i = 0; i < 10; i++)
+		_invImages[i] = nullptr;
+
+	_curFileName = " ";
+	_msgFont = nullptr;
+	_inventory = nullptr;
+
+	_imgMap = nullptr;
+	_imgRoom = nullptr;
+	_imgUpArrowRoom = nullptr;
+	_imgDownArrowRoom = nullptr;
+	_imgBridge = nullptr;
+	_imgHRoom = nullptr;
+	_imgVRoom = nullptr;
+	_imgMaze = nullptr;
+	_imgHugeMaze = nullptr;
+	_imgPath = nullptr;
+	for (int i = 0; i < 4; i++)
+		_imgMapX[i] = nullptr;
+	_maps = nullptr;
+
+	_blankJournal = nullptr;
+	_journalFont = nullptr;
+	_journalPage = 0;
+	_lastPage = false;
+	_monitorPage = 0;
+	_monitorTextFilename = "";
+	_monitorButton = nullptr;
+	_monitorButtonHeight = 1;
+	for (int i = 0; i < 20; i++)
+		_highPalette[i] = 0;
+	_introPlaying = false;
+
+	const Common::FSNode gameDataDir(ConfMan.getPath("path"));
+	SearchMan.addSubDirectoryMatching(gameDataDir, "game", 0, 4);
+}
+
+LabEngine::~LabEngine() {
+	freeMapData();
+	delete[] _rooms;
+	delete[] _inventory;
+
+	delete _conditions;
+	delete _roomsFound;
+	delete _event;
+	delete _interface;
+	delete _resource;
+	delete _music;
+	delete _anim;
+	delete _graphics;
+	delete _specialLocks;
+	delete _utils;
+	delete _journalBackImage;
+}
+
+Common::Error LabEngine::run() {
+	if (getFeatures() & GF_LOWRES)
+		initGraphics(320, 200);
+	else
+		initGraphics(640, 480);
+
+	_interface = new Interface(this);
+	_event = new EventManager(this);
+	_resource = new Resource(this);
+	_music = new Music(this);
+	_graphics = new DisplayMan(this);
+	_anim = new Anim(this);
+	_specialLocks = new SpecialLocks(this);
+	_utils = new Utils(this);
+	setDebugger(new Console(this));
+	_journalBackImage = new Image(this);
+
+	go();
+
+	return Common::kNoError;
+}
+
+void LabEngine::drawStaticMessage(byte index) {
+	_graphics->drawMessage(_resource->getStaticText((StaticText)index), false);
+}
+
+void LabEngine::changeVolume(int delta) {
+	int sfxPrev = _mixer->getVolumeForSoundType(Audio::Mixer::kSFXSoundType);
+	int musicPrev = _mixer->getVolumeForSoundType(Audio::Mixer::kMusicSoundType);
+	int sfxNew = (delta > 0) ? MIN<int>(sfxPrev + 10, Audio::Mixer::kMaxMixerVolume) : MAX<int>(sfxPrev - 10, 0);
+	int musicNew = (delta > 0) ? MIN<int>(musicPrev + 10, Audio::Mixer::kMaxMixerVolume) : MAX<int>(musicPrev - 10, 0);
+	_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, sfxNew);
+	_mixer->setVolumeForSoundType(Audio::Mixer::kMusicSoundType, musicNew);
+}
+
+void LabEngine::waitTOF() {
+	_graphics->screenUpdate();
+
+	uint32 now;
+
+	for (now = _system->getMillis(); now - _lastWaitTOFTicks <= 0xF; now = _system->getMillis() )
+		_system->delayMillis(_lastWaitTOFTicks - now + 17);
+
+	_lastWaitTOFTicks = now;
+}
+
+void LabEngine::updateEvents() {
+	_event->processInput();
+	_interface->handlePressedButton();
+}
+
+Common::Error LabEngine::loadGameState(int slot) {
+	bool result = loadGame(slot);
+	return (result) ? Common::kNoError : Common::kUserCanceled;
+}
+
+Common::Error LabEngine::saveGameState(int slot, const Common::String &desc, bool isAutosave) {
+	bool result = saveGame(slot, desc);
+	return (result) ? Common::kNoError : Common::kUserCanceled;
+}
+
+bool LabEngine::canLoadGameStateCurrently(Common::U32String *msg) {
+	return !_introPlaying;
+}
+
+bool LabEngine::canSaveGameStateCurrently(Common::U32String *msg) {
+	return !_introPlaying;
+}
+
+} // End of namespace Lab