Remove Igor engine

svn-id: r45898

1 files changed, 0 insertions, 3084 deletions

diff --git a/engines/igor/igor.cpp b/engines/igor/igor.cpp
deleted file mode 100644
index 2811df88a2..0000000000
--- a/engines/igor/igor.cpp
+++ /dev/null
@@ -1,3084 +0,0 @@
-/* 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.
- *
- * $URL$
- * $Id$
- *
- */
-
-#include "common/config-manager.h"
-#include "common/events.h"
-#include "common/system.h"
-
-#include "graphics/cursorman.h"
-
-#include "sound/voc.h"
-
-#include "igor/igor.h"
-#include "igor/midi.h"
-
-namespace Igor {
-
-IgorEngine::IgorEngine(OSystem *system, const DetectedGameVersion *dgv)
-	: Engine(system), _game(*dgv) {
-
-	_screenVGA = (uint8 *)malloc(320 * 200);
-	for (int i = 0; i < 4; ++i) {
-		_facingIgorFrames[i] = (uint8 *)malloc(13500);
-	}
-	_screenLayer1 = (uint8 *)malloc(320 * 144);
-	_screenLayer2 = (uint8 *)malloc(320 * 144);
-	_screenTextLayer = (uint8 *)malloc(320 * 144);
-	_screenTempLayer = (uint8 *)malloc(9996);
-	_igorHeadFrames = (uint8 *)malloc(3696);
-	_animFramesBuffer = (uint8 *)malloc(65535);
-	_inventoryPanelBuffer = (uint8 *)malloc(9600 * 2);
-	_inventoryImagesBuffer = (uint8 *)malloc(48000);
-	_verbsPanelBuffer = (uint8 *)malloc(3840);
-
-	Common::addDebugChannel(kDebugEngine,   "Engine",   "Engine debug level");
-	Common::addDebugChannel(kDebugResource, "Resource", "Resource debug level");
-	Common::addDebugChannel(kDebugScreen,   "Screen",   "Screen debug level");
-	Common::addDebugChannel(kDebugWalk,     "Walk",     "Walk debug level");
-	Common::addDebugChannel(kDebugGame,     "Game",     "Game debug level");
-
-	if (_game.flags & kFlagFloppy) {
-		_midiPlayer = new MidiPlayer(this);
-	} else {
-		_midiPlayer = 0;
-	}
-}
-
-IgorEngine::~IgorEngine() {
-	free(_resourceEntries);
-	free(_soundOffsets);
-	free(_screenVGA);
-	for (int i = 0; i < 4; ++i) {
-		free(_facingIgorFrames[i]);
-	}
-	free(_screenLayer1);
-	free(_screenLayer2);
-	free(_screenTextLayer);
-	free(_screenTempLayer);
-	free(_igorHeadFrames);
-	free(_animFramesBuffer);
-	free(_inventoryPanelBuffer);
-	free(_inventoryImagesBuffer);
-	free(_verbsPanelBuffer);
-
-	Common::clearAllDebugChannels();
-
-	delete _midiPlayer;
-}
-
-void IgorEngine::restart() {
-	_screenVGAVOffset = 0;
-
-	memset(&_gameState, 0, sizeof(_gameState));
-	_nextTimer = 0;
-	_fastMode = false;
-	_language = 0;
-
-	memset(_walkData, 0, sizeof(_walkData));
-	_walkCurrentPos = 0;
-	_walkDataLastIndex = _walkDataCurrentIndex = 0;
-	_walkCurrentFrame = 0;
-	_walkDataCurrentPosX = _walkDataCurrentPosY = 0;
-	_walkToObjectPosX = _walkToObjectPosY = 0;
-
-	memset(&_currentAction, 0, sizeof(_currentAction));
-	_currentAction.verb = kVerbWalk;
-	_actionCode = 0;
-	_actionWalkPoint = 0;
-	memset(_inputVars, 0, sizeof(_inputVars));
-	_musicData = 0;
-
-	_talkDelay = _talkSpeechCounter = _talkDelayCounter = 0;
-	memset(_dialogueTextsTable, 0, sizeof(_dialogueTextsTable));
-	_dialogueTextsStart = 0;
-	_dialogueTextsCount = 0;
-	_dialogueDirtyRectY = 0;
-	_dialogueDirtyRectSize = 0;
-	memset(_dialogueQuestions, 0, sizeof(_dialogueQuestions));
-	memset(_dialogueReplies, 0, sizeof(_dialogueReplies));
-	_dialogueEnded = false;
-	_dialogueChoiceSelected = 0;
-	memset(_dialogueInfo, 0, sizeof(_dialogueInfo));
-
-	memset(_objectsState, 0, sizeof(_objectsState));
-	memcpy(_inventoryImages, INVENTORY_IMG_INIT, 36);
-	memset(_inventoryInfo, 0, sizeof(_inventoryInfo));
-	memset(_verbPrepositions, 0, sizeof(_verbPrepositions));
-	memset(_globalObjectNames, 0, sizeof(_globalObjectNames));
-	memset(_globalDialogueTexts, 0, sizeof(_globalDialogueTexts));
-	memset(_verbsName, 0, sizeof(_verbsName));
-	memset(_roomObjectNames, 0, sizeof(_roomObjectNames));
-
-	_igorTempFrames = _facingIgorFrames[0] + 10500;
-
-	memset(_roomObjectAreasTable, 0, sizeof(_roomObjectAreasTable));
-	memset(_roomActionsTable, 0, sizeof(_roomActionsTable));
-	_executeMainAction = 0;
-	_executeRoomAction = 0;
-	_previousMusic = 0;
-	_musicData = 0;
-	_actionCode = 0;
-	_actionWalkPoint = 0;
-	memset(_inputVars, 0, sizeof(_inputVars));
-	_scrollInventory = false;
-	_roomCursorOn = true;
-	_currentCursor = 0;
-	_dialogueCursorOn = true;
-	_updateDialogue = 0;
-	_updateRoomBackground = 0;
-
-	_resourceEntriesCount = 0;
-	_resourceEntries = 0;
-	_soundOffsetsCount = 0;
-	_soundOffsets = 0;
-
-	_demoActionsCounter = 0;
-
-	_gameTicks = 0;
-}
-
-Common::Error IgorEngine::run() {
-	initGraphics(320, 200, false);
-	_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, ConfMan.getInt("sfx_volume"));
-
-	restart();
-	setupDefaultPalette();
-	_currentPart = ConfMan.getInt("boot_param");
-	if (_currentPart == 0) {
-		_currentPart = kStartupPart;
-	}
-	if (!_ovlFile.open(_game.ovlFileName)) {
-		error("Unable to open '%s'", _game.ovlFileName);
-	}
-	if (!_sndFile.open(_game.sfxFileName)) {
-		error("Unable to open '%s'", _game.sfxFileName);
-	}
-	readTableFile();
-	loadMainTexts();
-	loadIgorFrames();
-	_gameState.talkMode = kTalkModeTextOnly;
-	_gameState.talkSpeed = 3;
-	_talkSpeechCounter = 5;
-	_eventQuitGame = false;
-	PART_MAIN();
-	_ovlFile.close();
-	_sndFile.close();
-	return Common::kNoError;
-}
-
-void IgorEngine::readTableFile() {
-	Common::File tblFile;
-	uint32 stringsEntriesOffset = 0, resourcesEntriesOffset = 0, soundEntriesOffset = 0;
-	if (tblFile.open("IGOR.TBL") && tblFile.readUint32BE() == MKID_BE('ITBL') && tblFile.readUint32BE() == 4) {
-		stringsEntriesOffset = tblFile.readUint32BE();
-		uint32 borlandOverlaySize = _ovlFile.size();
-		int gameVersionsCount = tblFile.readByte();
-		for (int i = 0; i < gameVersionsCount; ++i) {
-			uint32 size = tblFile.readUint32BE();
-			if (size == borlandOverlaySize) {
-				resourcesEntriesOffset = tblFile.readUint32BE();
-				soundEntriesOffset = tblFile.readUint32BE();
-				break;
-			}
-			tblFile.skip(8);
-		}
-	}
-	if (resourcesEntriesOffset != 0 && soundEntriesOffset != 0) {
-		tblFile.seek(resourcesEntriesOffset);
-		_resourceEntriesCount = tblFile.readUint16BE();
-		_resourceEntries = (ResourceEntry *)malloc(sizeof(ResourceEntry) * _resourceEntriesCount);
-		for (int i = 0; i < _resourceEntriesCount; ++i) {
-			_resourceEntries[i].id = tblFile.readUint16BE();
-			_resourceEntries[i].offs = tblFile.readUint32BE();
-			_resourceEntries[i].size = tblFile.readUint32BE();
-		}
-		tblFile.seek(soundEntriesOffset);
-		_soundOffsetsCount = tblFile.readUint16BE();
-		_soundOffsets = (uint32 *)malloc(sizeof(uint32) * _soundOffsetsCount);
-		for (int i = 0; i < _soundOffsetsCount; ++i) {
-			_soundOffsets[i] = tblFile.readUint32BE();
-		}
-		tblFile.seek(stringsEntriesOffset);
-		int stringsCount = tblFile.readUint16BE();
-		for (int i = 0; i < stringsCount; ++i) {
-			int id = tblFile.readUint16BE();
-			int lang = tblFile.readByte();
-			int len = tblFile.readByte();
-			bool skipString = (lang == 1 && _game.language != Common::EN_ANY) || (lang == 2 && _game.language != Common::ES_ESP);
-			if (skipString) {
-				tblFile.skip(len);
-			} else {
-				char buf[256];
-				tblFile.read(buf, len);
-				buf[len] = 0;
-				_stringEntries.push_back(StringEntry(id, buf));
-			}
-		}
-		return;
-	}
-	error("Unable to read 'IGOR.TBL'");
-}
-
-const char *IgorEngine::getString(int id) const {
-	const char *str = 0;
-	for (Common::Array<StringEntry>::const_iterator it = _stringEntries.begin(); it != _stringEntries.end(); ++it) {
-		if ((*it).id == id) {
-			str = (*it).str.c_str();
-			break;
-		}
-	}
-	return str;
-}
-
-void IgorEngine::waitForTimer(int ticks) {
-	_system->copyRectToScreen(_screenVGA, 320, 0, _screenVGAVOffset, 320, 200 - _screenVGAVOffset);
-	_system->updateScreen();
-	uint32 endTicks = (ticks == -1) ? _nextTimer : _system->getMillis() + ticks * 1000 / kTickDelay;
-	do {
-		Common::Event ev;
-		while (_eventMan->pollEvent(ev)) {
-			switch (ev.type) {
-			case Common::EVENT_QUIT:
-				_inputVars[kInputEscape] = 1;
-				_currentPart = kInvalidPart;
-				_eventQuitGame = true;
-				break;
-			case Common::EVENT_KEYDOWN:
-				if (ev.kbd.keycode == Common::KEYCODE_ESCAPE) {
-					_inputVars[kInputEscape] = 1;
-				} else if (ev.kbd.keycode == Common::KEYCODE_SPACE) {
-					_inputVars[kInputOptions] = 1;
-				} else if (ev.kbd.keycode == Common::KEYCODE_p) {
-					_inputVars[kInputPause] = 1;
-				} else if (ev.kbd.keycode == Common::KEYCODE_F11) {
-					sprintf(_saveStateDescriptions[kQuickSaveSlot], "Quicksave part %d", _currentPart);
-					saveGameState(kQuickSaveSlot);
-				} else if (ev.kbd.keycode == Common::KEYCODE_F12) {
-					loadGameState(kQuickSaveSlot);
-				}
-				break;
-			case Common::EVENT_MOUSEMOVE:
-				_inputVars[kInputCursorXPos] = ev.mouse.x;
-				_inputVars[kInputCursorYPos] = ev.mouse.y;
-				break;
-			case Common::EVENT_RBUTTONDOWN:
-				_inputVars[kInputSkipDialogue] = 1;
-				break;
-			case Common::EVENT_LBUTTONDOWN:
-				_inputVars[kInputClick] = 1;
-				_inputVars[kInputCursorXPos] = ev.mouse.x;
-				_inputVars[kInputCursorYPos] = ev.mouse.y;
-				break;
-			default:
-				break;
-			}
-		}
-		_system->delayMillis(10);
-		if (_system->getMillis() >= endTicks) {
-			break;
-		}
-	} while (!_fastMode);
-	_nextTimer = _system->getMillis() + kTimerTicksCount * 1000 / kTickDelay;
-	if (ticks != -1) {
-		return;
-	}
-	_gameTicks += kTimerTicksCount;
-	if ((_gameTicks & 31) == 0) {
-		setCursor(_currentCursor);
-		_currentCursor = (_currentCursor + 1) & 3;
-	}
-	if (_game.flags & kFlagFloppy) {
-		updateMusic();
-	}
-	if (_gameTicks == 64) {
-		_gameTicks = 0;
-	}
-}
-
-void IgorEngine::copyArea(uint8 *dst, int dstOffset, int dstPitch, const uint8 *src, int srcPitch, int w, int h, bool transparent) {
-	uint8 *p = dst + dstOffset;
-	for (int y = 0; y < h; ++y) {
-		if (transparent) {
-			for (int x = 0; x < w; ++x) {
-				if (src[x] != 0) {
-					p[x] = src[x];
-				}
-			}
-		} else {
-			memcpy(p, src, w);
-		}
-		p += dstPitch;
-		src += srcPitch;
-	}
-}
-
-int IgorEngine::getRandomNumber(int m) {
-	assert(m > 0);
-	return _rnd.getRandomNumber(m - 1);
-}
-
-void IgorEngine::startMusic(int cmf) {
-	_midiPlayer->stopMusic();
-	free(_musicData);
-	int musicDataSize;
-	_musicData = loadData(cmf, 0, &musicDataSize);
-	_midiPlayer->playMusic(_musicData, musicDataSize);
-}
-
-void IgorEngine::playMusic(int num) {
-	debugC(9, kDebugEngine, "playMusic() %d", num);
-	if (_game.flags & kFlagFloppy) {
-		static const int cmf[] = { 0, 0, CMF_2_1, CMF_3, CMF_4, 0, 0, CMF_7_1, CMF_8, CMF_9, CMF_10, CMF_11, CMF_12 };
-		assert(num < ARRAYSIZE(cmf) && cmf[num] != 0);
-		_gameState.musicNum = num;
-		_gameState.musicSequenceIndex = 1;
-		startMusic(cmf[num]);
-	} else {
-		// TODO: play CD track
-	}
-}
-
-void IgorEngine::updateMusic() {
-	static const int cmf2Seq[] = { CMF_2_1, CMF_2_2, CMF_2_3, CMF_2_4 };
-	static const int cmf7Seq[] = { CMF_7_1, CMF_7_2, CMF_7_3, CMF_7_4 };
-	if (_gameState.jumpToNextMusic && 0) { // TODO: enable
-		switch (_gameState.musicNum) {
-		case 2:
-			_gameState.musicSequenceIndex = getRandomNumber(4) + 1;
-			startMusic(cmf2Seq[_gameState.musicSequenceIndex - 1]);
-//			_timerHandler0x1CCounter = 5;
-			break;
-		case 7:
-			if (_gameState.musicSequenceIndex == 4) {
-				_gameState.musicSequenceIndex = 1;
-			} else {
-				++_gameState.musicSequenceIndex;
-			}
-			startMusic(cmf7Seq[_gameState.musicSequenceIndex - 1]);
-//			_timerHandler0x1CCounter = 5;
-			break;
-		case 3:
-		case 4:
-		case 8:
-		case 9:
-		case 10:
-//			_timerHandler0x1CCounter = 50;
-			break;
-		case 11:
-//			_timerHandler0x1CCounter = 5;
-			break;
-		}
-	}
-}
-
-void IgorEngine::playSound(int num, int type) {
-	debugC(9, kDebugEngine, "playSound() %d", num);
-	--num;
-	int soundOffset = -1;
-	Audio::Mixer::SoundType soundType;
-	Audio::SoundHandle *soundHandle = 0;
-	if (type == 1) {
-		if (_mixer->isSoundHandleActive(_sfxHandle)) {
-			return;
-		}
-		assert(num >= 0 && num < _soundOffsetsCount);
-		soundOffset = _soundOffsets[num];
-		soundType = Audio::Mixer::kSFXSoundType;
-		soundHandle = &_sfxHandle;
-	} else if (type == 0 && (_game.flags & kFlagTalkie) != 0 && num != kNoSpeechSound) {
-		if (_mixer->isSoundHandleActive(_speechHandle)) {
-			_mixer->stopHandle(_speechHandle);
-		}
-		num += 100;
-		assert(num >= 0 && num < _soundOffsetsCount);
-		soundOffset = _soundOffsets[num];
-		soundType = Audio::Mixer::kSpeechSoundType;
-		soundHandle = &_speechHandle;
-	} else {
-		return;
-	}
-	_sndFile.seek(soundOffset);
-	Audio::AudioStream *stream = Audio::makeVOCStream(_sndFile, Audio::Mixer::FLAG_UNSIGNED);
-	if (stream) {
-		_mixer->playInputStream(soundType, soundHandle, stream);
-	}
-}
-
-void IgorEngine::stopSound() {
-	_mixer->stopHandle(_sfxHandle);
-}
-
-void IgorEngine::loadIgorFrames() {
-	loadData(FRM_IgorDirBack, _facingIgorFrames[0]);
-	loadData(FRM_IgorDirRight, _facingIgorFrames[1]);
-	loadData(FRM_IgorDirFront, _facingIgorFrames[2]);
-	loadData(FRM_IgorDirLeft, _facingIgorFrames[3]);
-	loadData(FRM_IgorHead, _igorHeadFrames);
-	memcpy(_igorPalette, PAL_IGOR_1, 48);
-}
-
-void IgorEngine::loadIgorFrames2() {
-	loadData(FRM_IgorDirBack2, _facingIgorFrames[0]);
-	loadData(FRM_IgorDirRight2, _facingIgorFrames[1]);
-	loadData(FRM_IgorDirFront2, _facingIgorFrames[2]);
-	loadData(FRM_IgorDirLeft2, _facingIgorFrames[3]);
-	loadData(FRM_IgorHead2, _igorHeadFrames);
-	memcpy(_igorPalette, PAL_IGOR_2, 48);
-}
-
-void IgorEngine::fixDialogueTextPosition(int num, int count, int *x, int *y) {
-	int textLineWidth = 0;
-	for (int i = 0; i < count; ++i) {
-		int w = getStringWidth(_globalDialogueTexts[num + i]);
-		if (w > textLineWidth) {
-			textLineWidth = w;
-		}
-	}
-	int textX = *x;
-	textX += textLineWidth / 2 - 1;
-	if (textX > 318) {
-		textX = 317 - textLineWidth;
-	} else {
-		textX -= textLineWidth;
-	}
-	if (textX < 1) {
-		textX = textLineWidth / 2 + 1;
-	} else {
-		textX += textLineWidth / 2;
-	}
-	*x = textX;
-
-	int textY = *y;
-	textY -= count * 10;
-	if (textY < 1) {
-		textY = 1;
-	}
-	*y = textY;
-}
-
-void IgorEngine::startCutsceneDialogue(int x, int y, int r, int g, int b) {
-	debugC(9, kDebugEngine, "startCutsceneDialogue() pos %d,%d color %d,%d,%d", x, y, r, g, b);
-	--_dialogueTextsCount;
-	int talkX = x;
-	int talkY = y;
-	const DialogueText *dt = &_dialogueTextsTable[_dialogueTextsStart];
-	fixDialogueTextPosition(dt->num, dt->count, &talkX, &talkY);
-	_dialogueDirtyRectY = talkY * 320;
-	_dialogueDirtyRectSize = dt->count * 11 * 320;
-	assert(_dialogueDirtyRectSize < 320 * 72);
-	memcpy(_screenTextLayer, _screenVGA + _dialogueDirtyRectY, _dialogueDirtyRectSize);
-	memcpy(_screenTextLayer + 320 * 72, _screenVGA + _dialogueDirtyRectY, _dialogueDirtyRectSize);
-	for (int i = 0; i < dt->count; ++i) {
-		const char *textLine = _globalDialogueTexts[dt->num + i];
-		int textLineWidth = getStringWidth(textLine);
-		int textX = talkX - textLineWidth / 2;
-		int textY = i * 10;
-		drawString(_screenTextLayer, textLine, textX, textY, kTalkColor, kTalkShadowColor, kTalkShadowColor);
-	}
-	setPaletteColor(kTalkColor, r, g, b);
-	setPaletteColor(kTalkShadowColor, 0, 0, 0);
-	if (_gameState.talkMode != kTalkModeSpeechOnly) {
-		memcpy(_screenVGA + _dialogueDirtyRectY, _screenTextLayer, _dialogueDirtyRectSize);
-	}
-	if (_gameState.talkMode == kTalkModeTextOnly) {
-		_talkDelay = (2 * dt->count) * _talkDelays[_gameState.talkSpeed];
-		_talkDelayCounter = 0;
-	} else {
-		_talkDelay = -1;
-		_talkDelayCounter = 0;
-	}
-	if (_gameState.talkMode == kTalkModeTextOnly) {
-		playSound(24, 0);
-	}
-	_gameState.dialogueTextRunning = true;
-	_inputVars[kInputSkipDialogue] = 0;
-}
-
-void IgorEngine::waitForEndOfCutsceneDialogue(int x, int y, int r, int g, int b) {
-	do {
-		if (_gameState.dialogueTextRunning && _inputVars[kInputSkipDialogue]) {
-			_talkDelayCounter = _talkDelay;
-			_inputVars[kInputSkipDialogue] = 0;
-		}
-		if (compareGameTick(19, 32) && _gameState.dialogueTextRunning) {
-			if (_talkSpeechCounter > 2) {
-				if (_gameState.talkMode != kTalkModeTextOnly) {
-					_talkDelayCounter = _talkDelay;
-				}
-				if (_talkDelay == _talkDelayCounter) {
-					if (_updateDialogue) {
-						(this->*_updateDialogue)(kUpdateDialogueAnimEndOfSentence);
-					}
-					memcpy(_screenVGA + _dialogueDirtyRectY, _screenTextLayer + 23040, _dialogueDirtyRectSize);
-					if (_dialogueTextsCount == 0) {
-						_gameState.dialogueTextRunning = 0;
-					} else {
-						++_dialogueTextsStart;
-						if (_gameState.talkMode != kTalkModeTextOnly) {
-							if (_talkSpeechCounter != -1) {
-								_talkSpeechCounter = 0;
-							} else {
-								_talkSpeechCounter = 5;
-								startCutsceneDialogue(x, y, r, g, b);
-							}
-						} else {
-							startCutsceneDialogue(x, y, r, g, b);
-						}
-					}
-				} else {
-					++_talkDelayCounter;
-					if (_updateDialogue) {
-						(this->*_updateDialogue)(kUpdateDialogueAnimMiddleOfSentence);
-					}
-				}
-			} else {
-				if (_talkSpeechCounter == 2) {
-					startCutsceneDialogue(x, y, r, g, b);
-				}
-				++_talkSpeechCounter;
-			}
-		}
-		if (_updateRoomBackground) {
-			(this->*_updateRoomBackground)();
-		}
-		if (_inputVars[kInputEscape]) return;
-		waitForTimer();
-	} while (_gameState.dialogueTextRunning);
-}
-
-void IgorEngine::fixIgorDialogueTextPosition(int num, int count, int *x, int *y) {
-	WalkData *wd = &_walkData[_walkDataLastIndex - 1];
-	*x = wd->x;
-	*y = wd->y - wd->scaleWidth - 3;
-	fixDialogueTextPosition(num, count, x, y);
-}
-
-void IgorEngine::startIgorDialogue() {
-	debugC(9, kDebugEngine, "startIgorDialogue()");
-	--_dialogueTextsCount;
-	int talkX, talkY;
-	const DialogueText *dt = &_dialogueTextsTable[_dialogueTextsStart];
-	fixIgorDialogueTextPosition(dt->num, dt->count, &talkX, &talkY);
-	_dialogueDirtyRectY = talkY * 320;
-	_dialogueDirtyRectSize = dt->count * 11 * 320;
-	assert(_dialogueDirtyRectSize < 320 * 72);
-	memcpy(_screenTextLayer, _screenVGA + _dialogueDirtyRectY, _dialogueDirtyRectSize);
-
-	if (_currentPart == 690) {
-		memcpy(_screenTextLayer + 320 * 72, _screenLayer1 + _dialogueDirtyRectY, _dialogueDirtyRectSize);
-		if (_currentAction.verb == kVerbLook && _currentAction.object1Num == 15) {
-			memcpy(_screenTextLayer + 320 * 72, _screenVGA + _dialogueDirtyRectY, _dialogueDirtyRectSize);
-		}
-		if (_currentAction.verb == kVerbLook && _currentAction.object1Num == 19) {
-			memcpy(_screenTextLayer + 320 * 72, _screenVGA + _dialogueDirtyRectY, _dialogueDirtyRectSize);
-		}
-	} else {
-		memcpy(_screenTextLayer + 320 * 72, _screenVGA + _dialogueDirtyRectY, _dialogueDirtyRectSize);
-	}
-	for (int i = 0; i < dt->count; ++i) {
-		const char *textLine = _globalDialogueTexts[dt->num + i];
-		int textLineWidth = getStringWidth(textLine);
-		int textX = talkX - textLineWidth / 2;
-		int textY = i * 10;
-		drawString(_screenTextLayer, textLine, textX, textY, kTalkColor, kTalkShadowColor, kTalkShadowColor);
-	}
-	setPaletteColor(kTalkColor, _dialogueColor[0], _dialogueColor[1], _dialogueColor[2]);
-	setPaletteColor(kTalkShadowColor, 0, 0, 0);
-	if (_gameState.talkMode != kTalkModeSpeechOnly) {
-		memcpy(_screenVGA + _dialogueDirtyRectY, _screenTextLayer, _dialogueDirtyRectSize);
-	}
-	if (_gameState.talkMode == kTalkModeTextOnly) {
-		_talkDelay = (2 * dt->count) * _talkDelays[_gameState.talkSpeed];
-		_talkDelayCounter = 0;
-	} else {
-		_talkDelay = -1;
-		_talkDelayCounter = 0;
-	}
-	if (_gameState.talkMode == kTalkModeTextOnly) {
-		playSound(24, 0);
-	}
-	_gameState.dialogueTextRunning = true;
-	_inputVars[kInputSkipDialogue] = 0;
-}
-
-void IgorEngine::waitForEndOfIgorDialogue() {
-	do {
-		if (_gameState.dialogueTextRunning && _inputVars[kInputSkipDialogue]) {
-			_talkDelayCounter = _talkDelay;
-			_inputVars[kInputSkipDialogue] = 0;
-		}
-		if (compareGameTick(19, 32) && _gameState.dialogueTextRunning) {
-			if (_talkSpeechCounter > 2) {
-				if (_gameState.talkMode != kTalkModeTextOnly) {
-					_talkDelayCounter = _talkDelay;
-				}
-				if (_talkDelay == _talkDelayCounter) {
-					animateIgorTalking(0);
-					memcpy(_screenVGA + _dialogueDirtyRectY, _screenTextLayer + 23040, _dialogueDirtyRectSize);
-					if (_dialogueTextsCount == 0) {
-						_gameState.dialogueTextRunning = 0;
-					} else {
-						++_dialogueTextsStart;
-						if (_gameState.talkMode != kTalkModeTextOnly) {
-							if (_talkSpeechCounter != -1) {
-								_talkSpeechCounter = 0;
-							} else {
-								_talkSpeechCounter = 5;
-								startIgorDialogue();
-							}
-						} else {
-							startIgorDialogue();
-						}
-					}
-				} else {
-					animateIgorTalking(getRandomNumber(6));
-					++_talkDelayCounter;
-				}
-			} else {
-				if (_talkSpeechCounter == 2) {
-					startIgorDialogue();
-				}
-				++_talkSpeechCounter;
-			}
-		}
-		if (_updateRoomBackground) {
-			(this->*_updateRoomBackground)();
-		}
-		if (_inputVars[kInputEscape]) return;
-		waitForTimer();
-	} while (_gameState.dialogueTextRunning);
-}
-
-int IgorEngine::getObjectFromInventory(int x) const {
-	if (x >= 20 && x <= 299) {
-		int i = (x - 20) / 40 + _inventoryInfo[72];
-		if (i <= _inventoryInfo[73]) {
-			return _inventoryInfo[i - 1];
-		}
-	}
-	return 0;
-}
-
-static int compareResourceEntry(const void *a, const void *b) {
-	int id = *(const int *)a;
-	const ResourceEntry *entry = (const ResourceEntry *)b;
-	return id - entry->id;
-}
-
-ResourceEntry *IgorEngine::findData(int id) {
-	ResourceEntry *re = (ResourceEntry *)bsearch(&id, _resourceEntries, _resourceEntriesCount, sizeof(ResourceEntry), compareResourceEntry);
-	assert(re);
-	return re;
-}
-
-uint8 *IgorEngine::loadData(int id, uint8 *dst, int *size) {
-	debugC(9, kDebugResource, "loadData() id %d", id);
-	ResourceEntry *re = findData(id);
-	if (!dst) {
-		dst = (uint8 *)malloc(re->size);
-		if (!dst) {
-			error("Unable to allocate %d bytes", re->size);
-		}
-	}
-	_ovlFile.seek(re->offs);
-	_ovlFile.read(dst, re->size);
-	if (size) {
-		*size = re->size;
-	}
-	return dst;
-}
-
-static void decodeRoomString(const uint8 *src, char *dst, int sz) {
-	for (int i = 0; i < sz; ++i) {
-		uint8 code = *src++;
-		if ((code >= 0xAE && code <= 0xC7) || (code >= 0xCE && code <= 0xE7)) {
-			code -= 0x6D;
-		} else if (code > 0xE7) {
-			switch (code) {
-			case 0xE8:
-				code = 0xA0;
-				break;
-			case 0xE9:
-				code = 0x82;
-				break;
-			case 0xEA:
-				code = 0xA1;
-				break;
-			case 0xEB:
-				code = 0xA2;
-				break;
-			case 0xEC:
-				code = 0xA3;
-				break;
-			case 0xED:
-				code = 0xA4;
-				break;
-			case 0xEE:
-				code = 0xA5;
-				break;
-			}
-		}
-		*dst++ = (char)code;
-	}
-}
-
-void IgorEngine::decodeRoomStrings(const uint8 *p, bool skipObjectNames) {
-	if (!skipObjectNames) {
-		for (int i = 0; i < 20; ++i) {
-			_roomObjectNames[i][0] = '\0';
-		}
-		uint8 code = *p++;
-		int index = -1;
-		while (code != 0xF6) {
-			if (code == 0xF4) {
-				++index;
-			}
-			int len = *p++;
-			if (len != 0) {
-				assert(index >= 0);
-				decodeRoomString(p, _roomObjectNames[index], len);
-				p += len;
-				_roomObjectNames[index][len] = '\0';
-				debugC(9, kDebugResource, "decodeRoomStrings() _roomObjectNames[%d] '%s'", index, _roomObjectNames[index]);
-			}
-			code = *p++;
-		}
-	}
-	for (int i = 200; i < 250; ++i) {
-		_globalDialogueTexts[i][0] = '\0';
-	}
-	uint8 code = *p++;
-	int index = 200;
-	while (code != 0xF6) {
-		if (code == 0xF4) {
-			++index;
-		}
-		int len = *p++;
-		if (len != 0) {
-			decodeRoomString(p, _globalDialogueTexts[index], len);
-			p += len;
-			_globalDialogueTexts[index][len] = '\0';
-			debugC(9, kDebugResource, "decodeRoomStrings() _globalDialogueTexts[%d] '%s'", index, _globalDialogueTexts[index]);
-		}
-		code = *p++;
-	}
-}
-
-void IgorEngine::decodeRoomText(const uint8 *p) {
-	debugC(9, kDebugResource, "decodeRoomText()");
-	memcpy(_walkXScaleRoom, p, 320); p += 320;
-	memcpy(_walkYScaleRoom, p, 432); p += 432;
-	decodeRoomStrings(p);
-}
-
-void IgorEngine::decodeRoomAreas(const uint8 *p, int count) {
-	for (int i = 0; i < count; ++i) {
-		RoomObjectArea *roa = &_roomObjectAreasTable[i];
-		roa->area = *p++;
-		assert((roa->area & 0x80) == 0);
-		roa->object = *p++;
-		roa->y1Lum = *p++;
-		roa->y2Lum = *p++;
-		roa->deltaLum = *p++;
-	}
-}
-
-void IgorEngine::decodeRoomMask(const uint8 *p) {
-	uint8 *dst = _screenLayer2;
-	int sz = 320 * 144;
-	while (sz != 0) {
-		uint8 b = *p++;
-		int len = READ_LE_UINT16(p); p += 2;
-		if (len > sz) {
-			len = sz;
-		}
-		memset(dst, b, len);
-		dst += len;
-		sz -= len;
-	}
-}
-
-void IgorEngine::loadRoomData(int pal, int img, int box, int msk, int txt) {
-	if (pal != 0) {
-		loadData(pal, _paletteBuffer);
-	}
-	if (img != 0) {
-		loadData(img, _screenLayer1);
-	}
-	if (box != 0) {
-		int sz;
-		uint8 *p = loadData(box, 0, &sz);
-		memset(_roomObjectAreasTable, 0, sizeof(_roomObjectAreasTable));
-		assert((sz % 5) == 0);
-		decodeRoomAreas(p, sz / 5);
-		free(p);
-	}
-	if (msk != 0) {
-		uint8 *p = loadData(msk);
-		decodeRoomMask(p);
-		free(p);
-	}
-	if (txt != 0) {
-		uint8 *p = loadData(txt);
-		decodeRoomText(p);
-		free(p);
-	}
-}
-
-void IgorEngine::loadAnimData(const int *anm, int loadOffset) {
-	if (loadOffset == 0) {
-		memset(_animFramesBuffer, 0, 65535);
-	}
-	while (*anm) {
-		int dataSize;
-		loadData(*anm++, &_animFramesBuffer[loadOffset], &dataSize);
-		loadOffset += dataSize;
-	}
-}
-
-void IgorEngine::loadActionData(int act) {
-	if (act != 0) {
-		assert(findData(act)->size <= 0x2000);
-		loadData(act, _roomActionsTable);
-	}
-}
-
-void IgorEngine::loadDialogueData(int dlg) {
-	uint8 *p = loadData(dlg);
-	int dialogueDataSize = _roomDataOffsets.dlg.questionsOffset + 164 + 41;
-	assert(dialogueDataSize <= 500);
-	memcpy(_gameState.dialogueData, p, dialogueDataSize);
-	assert(_roomDataOffsets.dlg.questionsSize <= MAX_DIALOGUE_QUESTIONS);
-	for (int i = 0; i < _roomDataOffsets.dlg.questionsSize; ++i) {
-		for (int n = 0; n < 2; ++n) {
-			const uint8 *src = p + _roomDataOffsets.dlg.questionsOffset + (i + 1) * 164 + _language * 82 + (n + 1) * 41;
-			int len = *src++;
-			if (len != 0) {
-				decodeRoomString(src, _dialogueQuestions[i][n], len);
-				_dialogueQuestions[i][n][len] = '\0';
-				debugC(9, kDebugResource, "loadDialogueData() _dialogueQuestions[%d][%d] '%s'", i, n, _dialogueQuestions[i][n]);
-			} else {
-				_dialogueQuestions[i][n][0] = '\0';
-			}
-		}
-	}
-	assert(_roomDataOffsets.dlg.repliesSize <= MAX_DIALOGUE_REPLIES);
-	for (int i = 0; i < _roomDataOffsets.dlg.repliesSize; ++i) {
-		const uint8 *src = p + _roomDataOffsets.dlg.repliesOffset + (i + 1) * 102 + _language * 51;
-		int len = *src++;
-		if (len != 0) {
-			decodeRoomString(src, _dialogueReplies[i], len);
-			_dialogueReplies[i][len] = '\0';
-			debugC(9, kDebugResource, "loadDialogueData() _dialogueReplies[%d] '%s'", i, _dialogueReplies[i]);
-		} else {
-			_dialogueReplies[i][0] = '\0';
-		}
-	}
-	free(p);
-}
-
-static void decodeMainString(const uint8 *src, char *dst) {
-	int sz = *src - 0x6D;
-	if (sz != 0) {
-		++src;
-		for (int i = 0; i < sz; ++i) {
-			uint8 code = src[i] - 0x6D;
-			dst[i] = (char)code;
-		}
-	}
-	dst[sz] = '\0';
-}
-
-void IgorEngine::loadMainTexts() {
-	loadData(IMG_VerbsPanel, _verbsPanelBuffer);
-	if (_game.version == kIdSpaCD) {
-		const struct {
-			int strId;
-			int x;
-		} verbTexts[] = {
-			{ STR_Talk,   21 },
-			{ STR_Take,   67 },
-			{ STR_Look,  113 },
-			{ STR_Use,   159 },
-			{ STR_Open,  205 },
-			{ STR_Close, 251 },
-			{ STR_Give,  297 }
-		};
-		for (int i = 0; i < 7; ++i) {
-			const char *s = getString(verbTexts[i].strId);
-			int x = verbTexts[i].x - getStringWidth(s) / 2;
-			drawString(_verbsPanelBuffer, s, x, 0, 0xF2, -1, 0);
-		}
-	}
-	int dataSize;
-	uint8 *p = loadData(TXT_MainTable, 0, &dataSize);
-	const uint8 *src = &p[0] + _language * 7;
-	for (int i = 0; i < 3; ++i, src += 7 * 2) {
-		decodeMainString(src, _verbPrepositions[i]);
-		debugC(9, kDebugResource, "loadMainTexts() _verbPrepositions[%d] '%s'", i, _verbPrepositions[i]);
-	}
-	src = &p[0x2A] + _language * 31;
-	for (int i = 0; i < 35; ++i, src += 31 * 2) {
-		decodeMainString(src, _globalObjectNames[i]);
-		debugC(9, kDebugResource, "loadMainTexts() _globalObjectNames[%d] '%s'", i, _globalObjectNames[i]);
-	}
-	src = &p[0x8BA] + _language * 51;
-	for (int i = 0; i < 250; ++i, src += 51 * 2) {
-		decodeMainString(src, _globalDialogueTexts[i]);
-		debugC(9, kDebugResource, "loadMainTexts() _globalDialogueTexts[%d] '%s'", i, _globalDialogueTexts[i]);
-	}
-	src = &p[0x6CA4] + _language * 12;
-	for (int i = 0; i < 9; ++i, src += 12 * 2) {
-		decodeMainString(src, _verbsName[i]);
-		debugC(9, kDebugResource, "loadMainTexts() _verbsName[%d] '%s'", i, _verbsName[i]);
-	}
-	free(p);
-}
-
-void IgorEngine::setupDefaultPalette() {
-	memset(_currentPalette, 0, 255 * 3);
-	memset(&_currentPalette[255 * 3], 63, 3);
-	updatePalette(768);
-}
-
-void IgorEngine::updatePalette(int count) {
-	assert(count <= 768);
-	uint8 pal[1024];
-	for (int j = 0, i = 0; i < count; ++i) {
-		pal[j++] = (_currentPalette[i] << 2) | (_currentPalette[i] >> 4);
-		if (((i + 1) % 3) == 0) {
-			pal[j++] = 0;
-		}
-	}
-	_system->setPalette(pal, 0, count / 3);
-}
-
-void IgorEngine::clearPalette() {
-	memset(_currentPalette, 0, 768);
-	updatePalette(768);
-}
-
-void IgorEngine::setPaletteColor(uint8 index, uint8 r, uint8 g, uint8 b) {
-	uint8 pal[4];
-	pal[0] = (r << 2) | (r >> 4);
-	pal[1] = (g << 2) | (g >> 4);
-	pal[2] = (b << 2) | (b >> 4);
-	pal[3] = 0;
-	_system->setPalette(pal, index, 1);
-}
-
-void IgorEngine::setPaletteRange(int startColor, int endColor) {
-	debugC(9, kDebugScreen, "setPaletteRange(%d, %d)", startColor, endColor);
-	assert(endColor - startColor + 1 <= 256);
-	for (int i = startColor; i <= endColor; ++i) {
-		setPaletteColor(i, _currentPalette[3 * i], _currentPalette[3 * i + 1], _currentPalette[3 * i + 2]);
-	}
-}
-
-void IgorEngine::fadeInPalette(int count) {
-	debugC(9, kDebugScreen, "fadeInPalette(%d)", count);
-	_system->copyRectToScreen(_screenVGA, 320, 0, _screenVGAVOffset, 320, 200 - _screenVGAVOffset);
-	int m = 66;
-	do {
-		m -= 3;
-		for (int i = 0; i < count; ++i) {
-			if (_paletteBuffer[i] >= m) {
-				uint8 color = _currentPalette[i] + 3;
-				if (color > _paletteBuffer[i]) {
-					color = _paletteBuffer[i];
-				}
-				_currentPalette[i] = color;
-			}
-		}
-		updatePalette(count);
-		_system->updateScreen();
-		_system->delayMillis(1000 / 60);
-	} while (m > 0);
-}
-
-void IgorEngine::fadeOutPalette(int count) {
-	debugC(9, kDebugScreen, "fadeOutPalette(%d)", count);
-	_system->copyRectToScreen(_screenVGA, 320, 0, _screenVGAVOffset, 320, 200 - _screenVGAVOffset);
-	memcpy(_paletteBuffer, _currentPalette, 768);
-	int m = 0;
-	do {
-		for (int i = 0; i < count; ++i) {
-			if (_paletteBuffer[i] >= m) {
-				uint8 color = _currentPalette[i];
-				if (color >= 3) {
-					color -= 3;
-				} else {
-					color = 0;
-				}
-				_currentPalette[i] = color;
-			}
-		}
-		updatePalette(count);
-		_system->updateScreen();
-		_system->delayMillis(1000 / 60);
-		m += 3;
-	} while (m < 66);
-}
-
-void IgorEngine::scrollPalette(int startColor, int endColor) {
-	debugC(9, kDebugScreen, "scrollPalette(%d, %d)", startColor, endColor);
-	uint8 c[3];
-	memcpy(c, &_currentPalette[startColor * 3], 3);
-	memmove(&_currentPalette[startColor * 3], &_currentPalette[(startColor + 1) * 3], (endColor - startColor) * 3);
-	memcpy(&_currentPalette[endColor * 3], c, 3);
-}
-
-void IgorEngine::drawChar(uint8 *dst, int chr, int x, int y, int color1, int color2, int color3) {
-	dst += y * 320 + x;
-	for (int j = 0; j < 11; ++j, dst += 320) {
-		uint32 chrLineMask = _fontData[chr * 11 + j];
-		for (int i = 0; i < 9; ++i, chrLineMask >>= 2) {
-			switch (chrLineMask & 3) {
-			case 1:
-				dst[i] = color1;
-				break;
-			case 2:
-				if (color2 != -1) {
-					dst[i] = color2;
-				}
-				break;
-			case 3:
-				if (color3 != -1) {
-					dst[i] = color3;
-				}
-				break;
-			}
-		}
-	}
-}
-
-void IgorEngine::drawString(uint8 *dst, const char *s, int x, int y, int color1, int color2, int color3) {
-	for (; *s; ++s) {
-		if (*s == ' ') {
-			x += 5;
-		} else {
-			int chr = _fontCharIndex[(uint8)*s];
-			if (chr == 99) {
-				continue;
-			}
-			if (x + _fontCharWidth[chr] > 320) {
-				break;
-			}
-			drawChar(dst, chr, x, y, color1, color2, color3);
-			x += _fontCharWidth[chr];
-		}
-	}
-}
-
-int IgorEngine::getStringWidth(const char *s) const {
-	int w = 0;
-	for (; *s; ++s) {
-		if (*s == ' ') {
-			w += 5;
-		} else {
-			int chr = _fontCharIndex[(uint8)*s];
-			if (chr == 99) {
-				continue;
-			}
-			w += _fontCharWidth[chr];
-		}
-	}
-	return w;
-}
-
-void IgorEngine::drawActionSentence(const char *sentence, uint8 color) {
-	memset(_screenVGA + 144 * 320, 0, 11 * 320);
-	int w = getStringWidth(sentence);
-	int x = (320 - w) / 2;
-	drawString(_screenVGA, sentence, x, 144, color, 0, 0);
-}
-
-void IgorEngine::formatActionSentence(uint8 color) {
-	char actionSentence[512];
-	if (_currentAction.verb == kVerbWalk && _inputVars[kInputCursorYPos] > 143) {
-		_currentAction.object1Num = 0;
-	}
-	strcpy(actionSentence, _verbsName[_currentAction.verb]);
-	if (_currentAction.object1Num != 0) {
-		if (_currentAction.object1Type == kObjectTypeInventory) {
-			strcat(actionSentence, _globalObjectNames[_currentAction.object1Num]);
-		} else {
-			strcat(actionSentence, _roomObjectNames[_currentAction.object1Num]);
-		}
-		if (_currentAction.verbType != 0) {
-			strcat(actionSentence, _verbPrepositions[_currentAction.verbType]);
-			if (_currentAction.object2Num != 0) {
-				if (_currentAction.object2Type == kObjectTypeInventory) {
-					strcat(actionSentence, _globalObjectNames[_currentAction.object2Num]);
-				} else {
-					strcat(actionSentence, _roomObjectNames[_currentAction.object2Num]);
-				}
-			}
-		}
-	}
-	drawActionSentence(actionSentence, _sentenceColorIndex[color]);
-}
-
-const uint8 *IgorEngine::getAnimFrame(int baseOffset, int tableOffset, int frame) {
-	const uint8 *src = _animFramesBuffer + baseOffset;
-	assert(frame >= 1);
-	int frameOffset = READ_LE_UINT16(src + tableOffset + (frame - 1) * 2);
-	return src + frameOffset - 1;
-}
-
-void IgorEngine::decodeAnimFrame(const uint8 *src, uint8 *dst, bool preserveText) {
-	int y = READ_LE_UINT16(src) * 320; src += 2;
-	int h = READ_LE_UINT16(src); src += 2;
-	while (h--) {
-		int w = *src++;
-		int pos = y;
-		while (w--) {
-			pos += *src++;
-			int len = *src++;
-			if (len & 0x80) {
-				uint8 color = *src++;
-				len = 256 - len;
-				if (preserveText) {
-					for (int i = pos; i < pos + len; ++i) {
-						if (dst[i] != kTalkColor && dst[i] != kTalkShadowColor) {
-							dst[i] = color;
-						}
-					}
-				} else {
-					memset(dst + pos, color, len);
-				}
-				pos += len;
-			} else {
-				if (preserveText) {
-					for (int i = pos; i < pos + len; ++i) {
-						if (dst[i] != kTalkColor && dst[i] != kTalkShadowColor) {
-							dst[i] = src[i - pos];
-						}
-					}
-				} else {
-					memcpy(dst + pos, src, len);
-				}
-				src += len;
-				pos += len;
-			}
-		}
-		y += 320;
-	}
-}
-
-void IgorEngine::copyAnimFrame(int srcOffset, int frame, int frameSize, int w, int h, int dstOffset) {
-	for (int y = 0; y <= h; ++y) {
-		memcpy(_screenLayer1 + y * 320 + dstOffset, _animFramesBuffer + frame * frameSize + y * w + srcOffset, w);
-	}
-}
-
-void IgorEngine::setCursor(int num) {
-	uint8 cursor[11 * 11];
-	memset(cursor, 0, 11 * 11);
-	const uint8 *mask = &_mouseCursorMask[num * 24];
-	for (int i = 0; i < 24; ++i) {
-		if (mask[i]) {
-			const int offset = ((int8)_mouseCursorData[i + 24] + 5) * 11 + ((int8)_mouseCursorData[i] + 5);
-			cursor[offset] = 255;
-		}
-	}
-	CursorMan.replaceCursor(cursor, 11, 11, 5, 5, 0);
-}
-
-void IgorEngine::showCursor() {
-	debugC(9, kDebugEngine, "showCursor()");
-	_roomCursorOn = true;
-	CursorMan.showMouse(_roomCursorOn);
-}
-
-void IgorEngine::hideCursor() {
-	debugC(9, kDebugEngine, "hideCursor()");
-	_roomCursorOn = false;
-	CursorMan.showMouse(_roomCursorOn);
-}
-
-void IgorEngine::updateRoomLight(int fl) {
-	WalkData *wd = &_walkData[_walkDataLastIndex - 1];
-	if (wd->scaleHeight != 50 || _gameState.dialogueTextRunning) {
-		return;
-	}
-	int offset = 320 * (wd->y + 1 - wd->scaleWidth);
-	int x = wd->x - _walkWidthScaleTable[wd->scaleHeight - 1] / 2;
-	if (x <= 0) {
-		return;
-	}
-	offset += x;
-	RoomObjectArea *roa;
-	int color = (fl == 0) ? 196 : 195;
-	switch (wd->posNum) {
-	case 2:
-		roa = &_roomObjectAreasTable[_screenLayer2[offset + 1298]];
-		if (wd->y > roa->y1Lum) {
-			if (wd->y <= roa->y2Lum && _gameState.enableLight == 1) {
-				color -= roa->deltaLum;
-			}
-			_screenVGA[offset + 1298] = color;
-		}
-		break;
-	case 3:
-		roa = &_roomObjectAreasTable[_screenLayer2[offset + 1293]];
-		if (wd->y > roa->y1Lum) {
-			if (wd->y <= roa->y2Lum && _gameState.enableLight == 1) {
-				color -= roa->deltaLum;
-			}
-			_screenVGA[offset + 1293] = color;
-		}
-		color = (fl == 0) ? 196 : 195;
-		roa = &_roomObjectAreasTable[_screenLayer2[offset + 1296]];
-		if (wd->y > roa->y1Lum) {
-			if (wd->y <= roa->y2Lum && _gameState.enableLight == 1) {
-				color -= roa->deltaLum;
-			}
-			_screenVGA[offset + 1296] = color;
-		}
-		break;
-	case 4:
-		roa = &_roomObjectAreasTable[_screenLayer2[offset + 1291]];
-		if (wd->y > roa->y1Lum) {
-			if (wd->y <= roa->y2Lum && _gameState.enableLight == 1) {
-				color -= roa->deltaLum;
-			}
-			_screenVGA[offset + 1291] = color;
-		}
-		break;
-	}
-}
-
-void IgorEngine::drawVerbsPanel() {
-	memcpy(_screenVGA + 320 * 156, _verbsPanelBuffer, 320 * 12);
-}
-
-void IgorEngine::redrawVerb(uint8 verb, bool highlight) {
-	uint8 verbBitmap[44 * 12];
-	if (verb >= 2 && verb <= 8) {
-		verb -= 2;
-		for (int i = 0; i <= 11; ++i) {
-			for (int j = 0; j <= 43; ++j) {
-				uint8 color = _verbsPanelBuffer[i * 320 + verb * 46 + j];
-				if (highlight && color != 0) {
-					color += 8;
-				}
-				verbBitmap[i * 44 + j] = color;
-			}
-		}
-		for (int i = 0; i <= 11; ++i) {
-			memcpy(_screenVGA + 320 * 156 + verb * 46 + i * 320, verbBitmap + i * 44, 44);
-		}
-	}
-}
-
-void IgorEngine::drawInventory(int start, int mode) {
-	loadData(IMG_InventoryPanel, _inventoryPanelBuffer);
-	loadData(IMG_Objects, _inventoryImagesBuffer);
-	int y, i;
-	int end = start + 6;
-	int x = 1;
-	for (y = start; y != end; ++y) {
-		if (_inventoryInfo[y - 1] == 0) {
-			for (i = 1; i <= 30; ++i) {
-				memset(_inventoryPanelBuffer + x * 40 - 20 + (i - 1) * 320, 0, 40);
-			}
-		} else {
-			for (i = 1; i <= 30; ++i) {
-				int img = _inventoryInfo[y - 1];
-				assert(img >= 1);
-				memcpy(_inventoryPanelBuffer + x * 40 - 20 + i * 320 - 321, _inventoryImagesBuffer + (i - 1) * 40 + (_inventoryImages[img - 1] - 1) * 1200, 40);
-			}
-		}
-		++x;
-	}
-	if (_inventoryInfo[72] == 1) {
-		// 'hide' scroll up
-		for (y = 5; y <= 11; ++y) {
-			for (x = 4; x <= 12; ++x) {
-				uint8 *p = _inventoryPanelBuffer + y * 320 + x - 321;
-				if (*p == 0xF2) {
-					*p = 0xF3;
-					p = _inventoryPanelBuffer + y * 320 + x + 305 - 321;
-					*p = 0xF3;
-				}
-			}
-		}
-	}
-	if (_inventoryInfo[73] <= _inventoryInfo[72] + 6 || _inventoryInfo[72] >= _inventoryInfo[73] - 6) {
-		// 'hide' scroll down
-		for (y = 19; y <= 25; ++y) {
-			for (x = 4; x <= 12; ++x) {
-				uint8 *p = _inventoryPanelBuffer + y * 320 + x - 321;
-				if (*p == 0xF2) {
-					*p = 0xF3;
-					p = _inventoryPanelBuffer + y * 320 + x + 305 - 321;
-					*p = 0xF3;
-				}
-			}
-		}
-	}
-	switch (mode) {
-	case 0:
-		memcpy(_screenVGA + 54400, _inventoryPanelBuffer, 9600);
-		_scrollInventory = false;
-		break;
-	case 1:
-		for (y = 0; y <= 11; ++y) {
-			for (x = 0; x <= 14; ++x) {
-				uint8 *p = _screenVGA + x + y * 320 + 59520;
-				if ((*p & 0x80) != 0) {
-					*p += 8;
-					p = _screenVGA + x + y * 320 + 59825;
-					*p += 8;
-				}
-			}
-		}
-		memmove(_inventoryPanelBuffer + 9600, _inventoryPanelBuffer, 9600);
-		memcpy(_inventoryPanelBuffer, _screenVGA + 54400, 9600);
-		_scrollInventoryStartY = 7;
-		_scrollInventoryEndY = 31;
-		_scrollInventoryDy = 6;
-		_scrollInventory = true;
-		break;
-	case 2:
-		for (y = 0; y <= 11; ++y) {
-			for (x = 0; x <= 14; ++x) {
-				uint8 *p = _screenVGA + x + y * 320 + 55040;
-				if ((*p & 0x80) != 0) {
-					*p += 8;
-					p = _screenVGA + x + y * 320 + 55345;
-					*p += 8;
-				}
-			}
-		}
-		memmove(_inventoryPanelBuffer + 9600, _inventoryPanelBuffer, 9600);
-		memcpy(_inventoryPanelBuffer + 9600, _screenVGA + 54400, 9600);
-		_scrollInventoryStartY = 25;
-		_scrollInventoryEndY = 1;
-		_scrollInventoryDy = -6;
-		_scrollInventory = true;
-		break;
-	}
-}
-
-void IgorEngine::packInventory() {
-	for (int i = 1; i <= _inventoryInfo[73]; ++i) {
-		if (_inventoryImages[i - 1] != 0) {
-			continue;
-		}
-		int count = _inventoryInfo[73] - 1;
-		for (int index = i; index <= count; ++index) {
-			_inventoryImages[index - 1] = _inventoryImages[index];
-			_inventoryImages[_inventoryImages[index - 1] - 1] = index;
-		}
-		_inventoryImages[_inventoryInfo[73] - 1] = 0;
-		--_inventoryInfo[73];
-	}
-}
-
-void IgorEngine::scrollInventory() {
-	if (_scrollInventoryStartY == _scrollInventoryEndY) {
-		memcpy(_screenVGA + 54400, _inventoryPanelBuffer + (_scrollInventoryStartY - 1) * 320, 9600);
-		_scrollInventory = false;
-	} else {
-		int offset = 54420;
-		for (int y = _scrollInventoryStartY; y < _scrollInventoryStartY + 29; ++y) {
-			memcpy(_screenVGA + offset, _inventoryPanelBuffer + 320 * y - 300, 280);
-			offset += 320;
-		}
-		_scrollInventoryStartY += _scrollInventoryDy;
-	}
-}
-
-void IgorEngine::addObjectToInventory(int object, int index) {
-	++_inventoryInfo[73];
-	_inventoryInfo[_inventoryInfo[73] - 1] = object;
-	_inventoryInfo[index] = _inventoryInfo[73];
-	_inventoryInfo[72] = _inventoryOffsetTable[(_inventoryInfo[73] - 1) / 7];
-	drawInventory(_inventoryInfo[72], 0);
-	playSound(51, 1);
-}
-
-void IgorEngine::removeObjectFromInventory(int index) {
-	_inventoryInfo[_inventoryInfo[index] - 1] = 0;
-	_inventoryInfo[index] = 0;
-	packInventory();
-	if (_inventoryInfo[72] > _inventoryInfo[73]) {
-		_inventoryInfo[72] = _inventoryOffsetTable[(_inventoryInfo[73] - 1) / 7];
-	}
-	drawInventory(_inventoryInfo[72], 0);
-	playSound(63, 1);
-}
-
-void IgorEngine::executeAction(int action) {
-	debugC(9, kDebugEngine, "executeAction %d", action);
-	assert(action < 200);
-	if (action <= 100) {
-		(this->*_executeMainAction)(action);
-	} else {
-		(this->*_executeRoomAction)(action);
-	}
-}
-
-void IgorEngine::clearAction() {
-	redrawVerb(_currentAction.verb, false);
-	memset(&_currentAction, 0, sizeof(_currentAction));
-	_currentAction.verb = kVerbWalk;
-	_actionCode = 0;
-	_actionWalkPoint = 0;
-}
-
-void IgorEngine::handleRoomInput() {
-	if (_inputVars[kInputPause]) {
-		_inputVars[kInputPause] = 0;
-		handlePause();
-	}
-	if (_inputVars[kInputOptions]) {
-		_inputVars[kInputOptions] = 0;
-		handleOptionsMenu();
-	}
-	if (_inputVars[kInputSkipDialogue] && _gameState.dialogueTextRunning) {
-		_talkDelayCounter = _talkDelay;
-		if (_gameState.talkMode != kTalkModeTextOnly && _talkSpeechCounter > 2) {
-			stopSound();
-			_talkSpeechCounter = -1;
-		}
-		_inputVars[kInputSkipDialogue] = 0;
-	}
-	if (!_roomCursorOn || _gameState.dialogueTextRunning || _scrollInventory) {
-		return;
-	}
-	if (_inputVars[kInputCursorYPos] >= 156 && _inputVars[kInputCursorYPos] <= 167) {
-		if (_inputVars[kInputClick]) {
-			int verb = getVerbUnderCursor(_inputVars[kInputCursorXPos]);
-			if (verb != _currentAction.verb) {
-				redrawVerb(_currentAction.verb, false);
-				_currentAction.verb = verb;
-				redrawVerb(_currentAction.verb, true);
-			}
-			// reset action command
-			memset(&_currentAction, 0, sizeof(_currentAction));
-			_currentAction.verb = verb;
-			_currentAction.verbType = 0;
-			formatActionSentence(0);
-			_inputVars[kInputClick] = 0;
-		}
-		return;
-	}
-	if (_inputVars[kInputCursorYPos] >= 172 && _inputVars[kInputCursorYPos] <= 183 && (_inputVars[kInputCursorXPos] < 15 || _inputVars[kInputCursorXPos] > 304)) {
-		if (_inputVars[kInputClick]) {
-			if (_inventoryInfo[72] > 1) {
-				_inventoryInfo[72] -= 7;
-				drawInventory(_inventoryInfo[72], 2);
-			}
-			_inputVars[kInputClick] = 0;
-		}
-		return;
-	}
-	if (_inputVars[kInputCursorYPos] >= 186 && _inputVars[kInputCursorYPos] <= 197 && (_inputVars[kInputCursorXPos] < 15 || _inputVars[kInputCursorXPos] > 304)) {
-		if (_inputVars[kInputClick]) {
-			if (_inventoryInfo[73] > _inventoryInfo[72] + 6) {
-				_inventoryInfo[72] += 7;
-				drawInventory(_inventoryInfo[72], 1);
-			}
-			_inputVars[kInputClick] = 0;
-		}
-		return;
-	}
-
-/*	if (_inputVars[kInputClick]) {
-		if (_gameState.igorMoving) {
-			_walkDataCurrentPosX = _walkData[_walkDataCurrentIndex - 1].x;
-			_walkDataCurrentPosY = _walkData[_walkDataCurrentIndex - 1].y;
-			if (_roomObjectAreasTable[_screenLayer2[_walkDataCurrentPosY * 320 + _walkDataCurrentPosX].area == 0) {
-				return;
-			}
-			_walkDataCurrentPosX = _walkData[_walkDataCurrentIndex + 1].x;
-			_walkDataCurrentPosY = _walkData[_walkDataCurrentIndex + 1].y;
-			if (_roomObjectAreasTable[_screenLayer2[_walkDataCurrentPosY * 320 + _walkDataCurrentPosX].area == 0) {
-				return;
-			}
-		}
-		_inputVars[kInputClick] = 0;
-	}*/
-
-	bool actionHovering = !_inputVars[kInputClick];
-	_inputVars[kInputClick] = 0;
-
-	if (actionHovering && _actionCode != 0) {
-		return;
-	}
-
-	//Action previousAction = _currentAction;
-	if (_inputVars[kInputCursorYPos] >= 170 && _inputVars[kInputCursorYPos] <= 199) {
-		int object = getObjectFromInventory(_inputVars[kInputCursorXPos]);
-		if (_currentAction.verbType == 0) {
-			_currentAction.object1Num = object;
-			_currentAction.object1Type = kObjectTypeInventory;
-			if (_currentAction.verb == kVerbUse && _roomActionsTable[_roomDataOffsets.action.useVerb + 10 + _currentAction.object1Num] != 0) {
-				formatActionSentence(0);
-				if (!actionHovering) {
-					_currentAction.verbType = 1;
-				}
-				return;
-			}
-			if (_currentAction.verb == kVerbGive && _roomActionsTable[_roomDataOffsets.action.giveVerb + 10 + _currentAction.object1Num] != 0) {
-				formatActionSentence(0);
-				if (!actionHovering) {
-					_currentAction.verbType = 2;
-				}
-				return;
-			}
-		} else {
-			_currentAction.object2Num = object;
-			_currentAction.object2Type = kObjectTypeInventory;
-		}
-	} else if (_inputVars[kInputCursorYPos] < 144) {
-		int area = _screenLayer2[_inputVars[kInputCursorYPos] * 320 + _inputVars[kInputCursorXPos]];
-		int object = _roomObjectAreasTable[area].object;
-		if (_currentAction.verbType == 0) {
-			_currentAction.object1Num = object;
-			_currentAction.object1Type = kObjectTypeRoom;
-			if (_currentAction.verb == kVerbUse && _roomActionsTable[_roomDataOffsets.action.useVerb + 48 + _currentAction.object1Num] != 0) {
-				formatActionSentence(0);
-				if (!actionHovering) {
-					_currentAction.verbType = 1;
-				}
-				return;
-			}
-			if (_currentAction.verb == kVerbGive && _roomActionsTable[_roomDataOffsets.action.giveVerb + 48 + _currentAction.object1Num] != 0) {
-				formatActionSentence(0);
-				if (!actionHovering) {
-					_currentAction.verbType = 2;
-				}
-				return;
-			}
-		} else {
-			_currentAction.object2Num = object;
-			_currentAction.object2Type = kObjectTypeRoom;
-		}
-	} else {
-		return;
-	}
-
-	if (_currentAction.verbType == 0) {
-		if (_currentAction.object1Type == kObjectTypeInventory) {
-			_actionCode = _inventoryActionsTable[(_currentAction.verb - 1) * 2 + _currentAction.object1Num * 20];
-		} else {
-			_actionCode = _roomActionsTable[_roomDataOffsets.action.defaultVerb + _currentAction.verb * 2 + _currentAction.object1Num * 20];
-		}
-	}
-	if (_currentAction.verbType == 1) {
-		int offset = _roomActionsTable[_roomDataOffsets.action.object2 + _currentAction.object2Num + _currentAction.object2Type * 38] * 2;
-		offset += _roomActionsTable[_roomDataOffsets.action.object1 + _currentAction.object1Num + _currentAction.object1Type * 38] * _roomDataOffsets.action.objectSize;
-		_actionCode = _roomActionsTable[_roomDataOffsets.action.useVerb + offset];
-	}
-	if (_currentAction.verbType == 2) {
-		int offset = _roomActionsTable[_roomDataOffsets.action.object2 + _currentAction.object2Num + _currentAction.object2Type * 38] * 2;
-		offset += _roomActionsTable[_roomDataOffsets.action.object1 + _currentAction.object1Num + _currentAction.object1Type * 38] * _roomDataOffsets.action.objectSize;
-		_actionCode = _roomActionsTable[_roomDataOffsets.action.giveVerb + offset];
-	}
-
-	if (actionHovering) {
-		formatActionSentence(0);
-		_currentAction.object2Num = 0;
-		_actionCode = 0;
-		return;
-	}
-	debugC(9, kDebugEngine, "handleRoomInput() actionCode %d", _actionCode);
-	if (_actionCode == 0) {
-		clearAction();
-		return;
-	}
-
-	formatActionSentence(1);
-	if (_currentAction.verbType == 0) {
-		if (_currentAction.object1Type == kObjectTypeRoom) {
-			_actionWalkPoint = _roomActionsTable[_roomDataOffsets.action.defaultVerb + _currentAction.verb * 2 + _currentAction.object1Num * 20 + 1];
-			if (_actionWalkPoint > 0) {
-				if (_currentAction.object1Num == 0) {
-					// no object selected, just walk
-					_walkToObjectPosX = _inputVars[kInputCursorXPos];
-					_walkToObjectPosY = _inputVars[kInputCursorYPos];
-					if (_roomObjectAreasTable[_screenLayer2[_walkToObjectPosY * 320 + _walkToObjectPosX]].area == 0) {
-						fixWalkPosition(&_walkToObjectPosX, &_walkToObjectPosY);
-					}
-				} else {
-					// walk to object
-					int offset = READ_LE_UINT16(_roomActionsTable + _roomDataOffsets.obj.walkPoints + _currentAction.object1Num * 2);
-					_walkToObjectPosX = offset % 320;
-					_walkToObjectPosY = offset / 320;
-					debugC(9, kDebugEngine, "handleRoomInput() walkToObject offset %d (0x%X)", offset, _roomDataOffsets.obj.walkPoints);
-				}
-				if (_gameState.igorMoving) {
-					// stop igor at the current position
-					_walkDataLastIndex = _walkDataCurrentIndex - 1;
-					_walkDataCurrentPosX = _walkData[_walkDataLastIndex].x;
-					_walkDataCurrentPosY = _walkData[_walkDataLastIndex].y;
-					_walkCurrentFrame = _walkData[_walkDataLastIndex].frameNum;
-					_walkCurrentPos = _walkData[_walkDataLastIndex].posNum;
-					WalkData::setNextFrame(_walkCurrentPos, _walkCurrentFrame);
-				} else {
-					--_walkDataLastIndex;
-					_walkDataCurrentPosX = _walkData[_walkDataLastIndex].x;
-					_walkDataCurrentPosY = _walkData[_walkDataLastIndex].y;
-					_walkCurrentPos = _walkData[_walkDataLastIndex].posNum;
-					_walkCurrentFrame = 1;
-				}
-				if (_walkDataCurrentPosX != _walkToObjectPosX || _walkDataCurrentPosY != _walkToObjectPosY) {
-					if (_roomDataOffsets.area.boxSize == 0) {
-						buildWalkPathSimple(_walkDataCurrentPosX, _walkDataCurrentPosY, _walkToObjectPosX, _walkToObjectPosY);
-					} else {
-						buildWalkPath(_walkDataCurrentPosX, _walkDataCurrentPosY, _walkToObjectPosX, _walkToObjectPosY);
-					}
-					if (_actionWalkPoint != 3) {
-						_walkCurrentFrame = 0;
-						_walkData[_walkDataLastIndex].frameNum = 0;
-					}
-					if (_actionWalkPoint == 1) {
-						_walkCurrentPos = _roomActionsTable[_roomDataOffsets.obj.walkFacingPosition + _currentAction.object1Num];
-						_walkData[_walkDataLastIndex].posNum = _walkCurrentPos;
-					}
-					_walkDataCurrentIndex = 1;
-					_gameState.igorMoving = true;
-				}
-				return;
-			}
-		}
-		hideCursor();
-		executeAction(_actionCode);
-		if (!_gameState.dialogueTextRunning) {
-			showCursor();
-		}
-		clearAction();
-		return;
-	}
-}
-
-void IgorEngine::animateIgorTalking(int frame) {
-	if (getPart() == 4) {
-		return;
-	}
-	if (getPart() == 85) {
-		PART_85_HELPER_6(frame);
-		return;
-	}
-	WalkData *wd = &_walkData[_walkDataLastIndex - 1];
-	int y = (wd->y - wd->scaleWidth + 1) * 320;
-	int delta = wd->x - _walkWidthScaleTable[wd->scaleHeight - 1] / 2;
-	if (delta > 0) {
-		y += delta;
-	}
-	for (int yOffset = 0; yOffset < wd->scaleWidth; y += 320, ++yOffset) {
-		int index = READ_LE_UINT16(_walkScaleTable + 0x6CE + wd->scaleHeight * 2) + yOffset;
-		uint8 yScale = _walkScaleTable[index];
-		if (yScale >= 11) {
-			continue;
-		}
-		for (int x = 0, xOffset = wd->clipSkipX - 1; x < wd->clipWidth; ++x, ++xOffset) {
-			index = READ_LE_UINT16(_walkScaleTable + 0x734 + _walkWidthScaleTable[wd->scaleHeight - 1] * 2) + xOffset;
-			uint8 xScale = _walkScaleTable[0x4FC + index];
-			if (xScale < 8 || xScale > 21) {
-				continue;
-			}
-			uint8 screenColor = _screenVGA[y + x];
-			if (screenColor < kTalkColor || screenColor > kTalkShadowColor) {
-				int offset = yScale * 14 + frame * 154 + (wd->posNum - 1) * 924 + (xScale - 8);
-				uint8 srcColor = _igorHeadFrames[offset];
-				if (srcColor == 0) {
-					_screenVGA[y + x] = _screenLayer1[y + x];
-					continue;
-				}
-				RoomObjectArea *roa = &_roomObjectAreasTable[_screenLayer2[y + x]];
-				if (wd->y <= roa->y1Lum) {
-					_screenVGA[y + x] = _screenLayer1[y + x];
-					continue;
-				}
-				if (wd->y <= roa->y2Lum && _gameState.enableLight == 1) {
-					srcColor -= roa->deltaLum;
-				}
-				_screenVGA[y + x] = srcColor;
-			}
-		}
-	}
-}
-
-void IgorEngine::handleRoomDialogue() {
-	if (_gameState.dialogueTextRunning) {
-		if (_talkDelayCounter == _talkDelay) {
-			animateIgorTalking(0);
-			memcpy(_screenVGA + _dialogueDirtyRectY, _screenTextLayer + 23040, _dialogueDirtyRectSize);
-			if (_dialogueTextsCount == 0) {
-				_gameState.dialogueTextRunning = false;
-				showCursor();
-			} else {
-				++_dialogueTextsStart;
-				startIgorDialogue();
-			}
-		} else {
-			animateIgorTalking(getRandomNumber(6));
-			++_talkDelayCounter;
-		}
-	}
-}
-
-void IgorEngine::handleRoomIgorWalk() {
-	if (_walkDataCurrentIndex > _walkDataLastIndex) {
-		_gameState.igorMoving = false;
-		_walkDataLastIndex = _walkDataCurrentIndex;
-		if (_actionCode > 0) {
-			hideCursor();
-			executeAction(_actionCode);
-			if (!_gameState.dialogueTextRunning) {
-				showCursor();
-			}
-			clearAction();
-		}
-	}
-	if (_gameState.igorMoving) {
-		moveIgor(_walkData[_walkDataCurrentIndex].posNum, _walkData[_walkDataCurrentIndex].frameNum);
-		++_walkDataCurrentIndex;
-	}
-}
-
-void IgorEngine::handleRoomInventoryScroll() {
-	if (_scrollInventory) {
-		scrollInventory();
-	}
-}
-
-void IgorEngine::handleRoomLight() {
-	if (_gameState.dialogueTextRunning || _gameState.igorMoving) {
-		_gameState.updateLight = false;
-	} else if (_gameState.updateLight) {
-		updateRoomLight(0);
-		_gameState.updateLight = 0;
-	} else if (getRandomNumber(10) == 0) {
-		updateRoomLight(1);
-		_gameState.updateLight = true;
-	}
-}
-
-void IgorEngine::enterPartLoop() {
-	if (!_gameState.dialogueTextRunning) {
-		showCursor();
-	}
-	_gameState.igorMoving = false;
-	if (_game.version == kIdEngDemo110) {
-		CHECK_FOR_END_OF_DEMO();
-	}
-}
-
-void IgorEngine::leavePartLoop() {
-	hideCursor();
-	SET_EXEC_ACTION_FUNC(1, 0);
-	_updateRoomBackground = 0;
-}
-
-void IgorEngine::runPartLoop() {
-	handleRoomInput();
-	if (compareGameTick(1, 16)) {
-		handleRoomIgorWalk();
-	}
-	if (compareGameTick(19, 32)) {
-		handleRoomDialogue();
-	}
-	if (compareGameTick(4, 8)) {
-		handleRoomInventoryScroll();
-	}
-	if (compareGameTick(1)) {
-		handleRoomLight();
-	}
-	if (_updateRoomBackground) {
-		(this->*_updateRoomBackground)();
-	}
-	waitForTimer();
-}
-
-int IgorEngine::lookupScale(int xOffset, int yOffset, int h) const {
-	int index = READ_LE_UINT16(_walkScaleTable + 0x734 + _walkWidthScaleTable[h - 1] * 2);
-	int offset = _walkScaleTable[0x4FC + index + xOffset];
-	index = READ_LE_UINT16(_walkScaleTable + 0x6CE + h * 2);
-	offset += _walkScaleTable[index + yOffset] * 30;
-	return offset;
-}
-
-void IgorEngine::moveIgor(int pos, int frame) {
-	assert(_gameState.enableLight == 1 || _gameState.enableLight == 2);
-	debugC(9, kDebugWalk, "moveIgorHelper _walkDataCurrentIndex %d pos %d frame %d", _walkDataCurrentIndex, pos, frame);
-	WalkData *wd = &_walkData[_walkDataCurrentIndex];
-	uint8 _walkClipSkipX = wd->clipSkipX;
-	uint8 _walkHeightScale = wd->scaleHeight;
-	int16 _walkClipWidth = wd->clipWidth;
-	uint16 _walkScaleWidth = wd->scaleWidth;
-	uint8 _walkXPosChanged = wd->xPosChanged;
-	int16 _walkDxPos = wd->dxPos + 1;
-	uint8 _walkYPosChanged = wd->yPosChanged;
-	int16 _walkDyPos = wd->dyPos;
-	int16 _walkDataCurrentPosX2 = wd->x;
-	int16 _walkDataCurrentPosY2 = wd->y;
-
-	uint16 _walkDataDrawOffset = (wd->y - wd->scaleWidth + 1) * 320;
-
-	int xPos = _walkWidthScaleTable[wd->scaleHeight - 1] / 2;
-	if (wd->x > xPos) {
-		_walkDataDrawOffset += wd->x - xPos;
-	}
-	if (_walkXPosChanged != 0) {
-		_walkDataDrawOffset -= _walkDxPos;
-	}
-	if (_walkYPosChanged != 0) {
-		_walkDataDrawOffset -= _walkDyPos * 320;
-	}
-	if (_gameState.enableLight == 2) {
-		int8 colorLum = _roomObjectAreasTable[_screenLayer2[_walkDataCurrentPosY2 * 320 + _walkDataCurrentPosX2]].y2Lum;
-		if (_gameState.colorLum != colorLum) {
-			for (int color = 192 * 3; color <= 207 * 3; ++color) {
-				int c = _currentPalette[color] + colorLum;
-				if (c < 1) {
-					c = 0;
-				} else if (c > 62) {
-					c = 63;
-				}
-				_currentPalette[color] = c;
-			}
-			setPaletteRange(192, 207);
-			_gameState.colorLum = colorLum;
-		}
-	}
-	uint16 screenIgorDrawOffset = _walkDataDrawOffset;
-	uint16 igorScaledWidth = _walkDxPos + _walkClipWidth;
-	uint16 igorScaledHeight = _walkHeightScale + _walkDyPos;
-	uint16 igorBodyScanLine = 0;
-	if (_walkYPosChanged != 0) {
-		for (int i = 1; i <= _walkDyPos; ++i) {
-			memcpy(_igorTempFrames + igorBodyScanLine * 50, _screenLayer1 + _walkDataDrawOffset, igorScaledWidth);
-			_walkDataDrawOffset += 320;
-			++igorBodyScanLine;
-		}
-	}
-	if (_walkXPosChanged != 0) {
-		for (int yOffset = 0; yOffset < _walkScaleWidth; ++yOffset) {
-			assert(_walkDxPos > 0);
-			assert(igorBodyScanLine * 50 + _walkDxPos <= 3000);
-			memcpy(_igorTempFrames + igorBodyScanLine * 50, _screenLayer1 + _walkDataDrawOffset, _walkDxPos);
-			int xOffset = _walkClipSkipX - 1;
-			for (int i = 0; i < _walkClipWidth; ++i) {
-				int offset = lookupScale(xOffset, yOffset, _walkHeightScale);
-				offset += frame * 1500;
-				uint8 color = _facingIgorFrames[pos - 1][offset];
-				if (color != 0) {
-					assert(_walkDataDrawOffset + _walkDxPos + i >= 0);
-					int index = _screenLayer2[_walkDataDrawOffset + _walkDxPos + i];
-					int yPos = _roomObjectAreasTable[index].y1Lum;
-					if (wd->y <= yPos) {
-						_igorTempFrames[igorBodyScanLine * 50 + i + _walkDxPos] = _screenLayer1[_walkDataDrawOffset + _walkDxPos + i];
-					} else {
-						if (_gameState.enableLight == 1 && wd->y <= _roomObjectAreasTable[index].y2Lum) {
-							color -= _roomObjectAreasTable[index].deltaLum;
-						}
-						_igorTempFrames[igorBodyScanLine * 50 + i + _walkDxPos] = color;
-					}
-				} else {
-					_igorTempFrames[igorBodyScanLine * 50 + i + _walkDxPos] = _screenLayer1[_walkDataDrawOffset + _walkDxPos + i];
-				}
-				++xOffset;
-			}
-			_walkDataDrawOffset += 320;
-			++igorBodyScanLine;
-		}
-	} else {
-		for (int yOffset = 0; yOffset < _walkScaleWidth; ++yOffset) {
-			int xOffset = _walkClipSkipX - 1;
-			for (int i = 0; i < _walkClipWidth; ++i) {
-				int offset = lookupScale(xOffset, yOffset, _walkHeightScale);
-				offset += frame * 1500;
-				uint8 color = _facingIgorFrames[pos - 1][offset];
-				if (color != 0) {
-					assert(_walkDataDrawOffset + i >= 0);
-					int index = _screenLayer2[_walkDataDrawOffset + i];
-					int yPos = _roomObjectAreasTable[index].y1Lum;
-					if (wd->y <= yPos) {
-						_igorTempFrames[igorBodyScanLine * 50 + i] = _screenLayer1[_walkDataDrawOffset + i];
-					} else {
-						if (_gameState.enableLight == 1 && wd->y <= _roomObjectAreasTable[index].y2Lum) {
-							color -= _roomObjectAreasTable[index].deltaLum;
-						}
-						_igorTempFrames[igorBodyScanLine * 50 + i] = color;
-					}
-				} else {
-					_igorTempFrames[igorBodyScanLine * 50 + i] = _screenLayer1[_walkDataDrawOffset + i];
-				}
-				++xOffset;
-			}
-			const uint8 *src = _screenLayer1 + _walkDataDrawOffset + _walkClipWidth;
-			memcpy(_igorTempFrames + igorBodyScanLine * 50 + _walkClipWidth, src, _walkDxPos);
-			_walkDataDrawOffset += 320;
-			++igorBodyScanLine;
-		}
-	}
-	if (_walkYPosChanged == 0) {
-		for (int i = 1; i <= _walkDyPos; ++i) {
-			memcpy(_igorTempFrames + igorBodyScanLine * 50, _screenLayer1 + _walkDataDrawOffset, igorScaledWidth);
-			_walkDataDrawOffset += 320;
-			++igorBodyScanLine;
-		}
-	}
-	for (igorBodyScanLine = 0; igorBodyScanLine < igorScaledHeight; ++igorBodyScanLine) {
-		assert(screenIgorDrawOffset + igorScaledWidth <= 320 * 200);
-		memcpy(_screenVGA + screenIgorDrawOffset, _igorTempFrames + igorBodyScanLine * 50, igorScaledWidth);
-		screenIgorDrawOffset += 320;
-	}
-}
-
-void IgorEngine::buildWalkPathSimple(int srcX, int srcY, int dstX, int dstY) {
-	debugC(9, kDebugWalk, "IgorEngine::buildWalkPathSimple(%d, %d, %d, %d)", srcX, srcY, dstX, dstY);
-	if (srcX != dstX || srcY != dstY) {
-		_walkData[0] = _walkData[_walkDataLastIndex];
-		_walkDataLastIndex = 1;
-		buildWalkPathArea(srcX, srcY, dstX, dstY);
-		--_walkDataLastIndex;
-	}
-}
-
-void IgorEngine::getClosestAreaTrianglePoint(int dstArea, int srcArea, int *dstY, int *dstX, int srcY, int srcX) {
-	int minSqrDist = -1;
-	assert(dstArea >= 1 && srcArea >= 1);
-	const uint8 *p = _roomActionsTable + ((dstArea - 1) + (srcArea - 1) * _roomDataOffsets.area.boxSize) * 6;
-	for (int i = 0; i < 3; ++i) {
-		const uint16 offset = READ_LE_UINT16(p + i * 2);
-		const int yPos = offset / 320;
-		const int xPos = offset % 320;
-		int y = srcY - yPos;
-		int x = srcX - xPos;
-		int sqrDist = y * y + x * x;
-		if (minSqrDist == -1 || sqrDist < minSqrDist) {
-			*dstY = yPos;
-			*dstX = xPos;
-			minSqrDist = sqrDist;
-		}
-	}
-	debugC(9, kDebugWalk, "getClosestAreaTrianglePoint() sqrDist %d pos %d,%d", minSqrDist, *dstX, *dstY);
-}
-
-void IgorEngine::getClosestAreaTrianglePoint2(int dstArea, int srcArea, int *dstY, int *dstX, int srcY1, int srcX1, int srcY2, int srcX2) {
-	int minSqrDist = -1;
-	assert(dstArea >= 1 && srcArea >= 1);
-	const uint8 *p = _roomActionsTable + ((dstArea - 1) + (srcArea - 1) * _roomDataOffsets.area.boxSize) * 6;
-	for (int i = 0; i < 3; ++i) {
-		const uint16 offset = READ_LE_UINT16(p + i * 2);
-		const int yPos = offset / 320;
-		const int xPos = offset % 320;
-		int y1 = srcY1 - yPos;
-		int x1 = srcX1 - xPos;
-		int y2 = srcY2 - yPos;
-		int x2 = srcX2 - xPos;
-		int sqrDist = y1 * y1 + x1 * x1 + y2 * y2 + x2 * x2;
-		if (minSqrDist == -1 || sqrDist < minSqrDist) {
-			*dstY = yPos;
-			*dstX = xPos;
-			minSqrDist = sqrDist;
-		}
-	}
-	debugC(9, kDebugWalk, "getClosestAreaTrianglePoint2() sqrDist %d pos %d,%d", minSqrDist, *dstX, *dstY);
-}
-
-void IgorEngine::buildWalkPath(int srcX, int srcY, int dstX, int dstY) {
-	if (srcX != dstX || srcY != dstY) {
-		_walkData[0] = _walkData[_walkDataLastIndex];
-		_walkDataLastIndex = 1;
-		int srcArea = _roomObjectAreasTable[_screenLayer2[srcY * 320 + srcX]].area;
-		int dstArea = _roomObjectAreasTable[_screenLayer2[dstY * 320 + dstX]].area;
-		debugC(9, kDebugWalk, "srcArea = %d dstArea = %d", srcArea, dstArea);
-		int currentArea = srcArea;
-		for (int i = 1; dstArea != currentArea; ++i) {
-			const int boxOffset = srcArea * _roomDataOffsets.area.boxSrcSize + dstArea * _roomDataOffsets.area.boxDstSize;
-			int nextArea = _roomActionsTable[boxOffset + i + _roomDataOffsets.area.box];
-			debugC(9, kDebugWalk, "nextArea %d (%d,%d,%d)", nextArea, _roomDataOffsets.area.box, _roomDataOffsets.area.boxSrcSize, _roomDataOffsets.area.boxDstSize);
-			int nextPosX, nextPosY;
-			if (dstArea != nextArea) {
-				getClosestAreaTrianglePoint(nextArea, currentArea, &nextPosY, &nextPosX, srcY, srcX);
-			} else {
-				getClosestAreaTrianglePoint2(nextArea, currentArea, &nextPosY, &nextPosX, dstY, dstX, srcY, srcX);
-			}
-			debugC(9, kDebugWalk, "buildWalkPath() transitionArea = %d next %d,%d pos %d,%d offset 0x%X", nextArea, nextPosX, nextPosY, dstX, dstY, _roomDataOffsets.area.box);
-			buildWalkPathArea(srcX, srcY, nextPosX, nextPosY);
-			srcX = nextPosX;
-			srcY = nextPosY;
-			currentArea = nextArea;
-		}
-		buildWalkPathArea(srcX, srcY, dstX, dstY);
-		--_walkDataLastIndex;
-	}
-	debugC(9, kDebugWalk, "buildWalkPath() end _walkDataLastIndex %d", _walkDataLastIndex);
-}
-
-void IgorEngine::buildWalkPathArea(int srcX, int srcY, int dstX, int dstY) {
-	if (srcX != dstX || srcY != dstY) {
-		const int dx = dstX - srcX;
-		const int dy = dstY - srcY;
-		debugC(9, kDebugWalk, "buildWalkPathArea() dx = %d dy = %d src %d,%d dst %d,%d", dx, dy, srcX, srcY, dstX, dstY);
-		assert(_walkDataLastIndex > 0);
-		if (ABS(dy) * 2 > ABS(dx)) {
-			if (srcY > dstY) {
-				buildWalkPathAreaUpDirection(srcX, srcY, dstX, dstY);
-			} else {
-				buildWalkPathAreaDownDirection(srcX, srcY, dstX, dstY);
-			}
-		} else {
-			if (srcX < dstX) {
-				buildWalkPathAreaRightDirection(srcX, srcY, dstX, dstY);
-			} else {
-				buildWalkPathAreaLeftDirection(srcX, srcY, dstX, dstY);
-			}
-		}
-	}
-}
-
-static int16 roundReal(float f) {
-	return (int16)(f + .5);
-}
-
-static int16 truncReal(float f) {
-	return (int16)f;
-}
-
-int IgorEngine::getVerticalStepsCount(int minX, int minY, int maxX, int maxY) {
-	debugC(9, kDebugWalk, "getVerticalStepsCount() %d %d %d %d", minX, minY, maxX, maxY);
-	int curX = 2;
-	if ((_walkXScaleRoom[minX] != 1 || _walkXScaleRoom[maxX] != 3) && (_walkXScaleRoom[maxX] != 1 || _walkXScaleRoom[minX] != 3)) {
-		curX = _walkXScaleRoom[minX];
-	}
-	int curY = minY;
-	int count = 0;
-	while (1) {
-		uint8 scale = _walkYScaleRoom[(_walkXScaleRoom[curX] - 1) * 144 + curY];
-		scale = _walkScaleTable[0x901 + scale];
-		if (maxY - curY <= scale) {
-			break;
-		}
-		curY += scale;
-		++count;
-	}
-	return count;
-}
-
-int IgorEngine::getHorizontalStepsCount(int minX, int minY, int maxX, int maxY) {
-	uint8 scale, frame = _walkCurrentFrame;
-
-	scale = _walkYScaleRoom[(_walkXScaleRoom[maxX] - 1) * 144 + maxY];
-	float r1 = _walkScaleSpeedTable[scale - 1];
-	scale = _walkYScaleRoom[(_walkXScaleRoom[minX] - 1) * 144 + minY];
-	float r2 = _walkScaleSpeedTable[scale - 1];
-	debugC(9, kDebugWalk, "getHorizontalStepsCount() maxX - minX = %d r1 = %f r2 = %f", maxX - minX, r1, r2);
-
-	int16 steps = roundReal((maxX - minX) / ((r1 + r2) / 2.0f));
-	int count = 0;
-	if (steps != 0) {
-		float r3 = (maxY - minY) / (float)steps;
-		int curX = minX;
-		int curY = minY;
-		float r4 = r3;
-		while (1) {
-			scale = _walkYScaleRoom[(_walkXScaleRoom[curX] - 1) * 144 + curY];
-			uint8 c = _walkScaleTable[0x769 + scale * 8 + frame];
-			if (maxX - curX <= c) {
-				break;
-			}
-			curX += c;
-			curY = minY + truncReal(r4);
-			if (frame == 8) {
-				frame = 1;
-			} else {
-				++frame;
-			}
-			r4 += r3;
-			++count;
-		}
-	}
-	return count;
-}
-
-void IgorEngine::lookupScale(int curX, int curY, uint8 &scale, uint8 &xScale, uint8 &yScale) const {
-	scale = _walkYScaleRoom[(_walkXScaleRoom[curX] - 1) * 144 + curY];
-	yScale = _walkScaleTable[0x901 + scale];
-	xScale = _walkWidthScaleTable[scale - 1];
-}
-
-void IgorEngine::buildWalkPathAreaUpDirection(int srcX, int srcY, int dstX, int dstY) {
-	int _walkCurrentPosLocalVar = _walkCurrentPos;
-	if (_walkCurrentPos == 3) {
-		_walkCurrentPos = 1;
-		_walkData[_walkDataLastIndex] = _walkData[_walkDataLastIndex - 1];
-		_walkData[_walkDataLastIndex].posNum = (dstX > srcX) ? kFacingPositionRight : kFacingPositionLeft;
-		_walkData[_walkDataLastIndex].frameNum = 5;
-		++_walkDataLastIndex;
-	} else {
-		_walkCurrentPos = 1;
-	}
-	if (_walkCurrentFrame > 6) {
-		_walkCurrentFrame -= 6;
-	}
-	WalkData *wd;
-	uint8 scale, xScale, yScale;
-	float vStepDist, vStepCur;
-	int curX = srcX;
-	int curY = srcY;
-	if (srcX > dstX) {
-		int vStepsCount = getVerticalStepsCount(dstX, dstY, srcX, srcY);
-		if (vStepsCount > 0) {
-			vStepCur = vStepDist = (srcX - dstX) / (float)vStepsCount;
-			for (int i = 1; i <= vStepsCount; ++i) {
-				wd = &_walkData[_walkDataLastIndex];
-				curX = srcX - truncReal(vStepCur);
-				lookupScale(curX, curY, scale, xScale, yScale);
-				curY -= yScale;
-				lookupScale(curX, curY, scale, xScale, yScale);
-				wd->setPos(curX, curY, 1, _walkCurrentFrame);
-				WalkData::setNextFrame(kFacingPositionBack, _walkCurrentFrame);
-				wd->setScale(scale, scale);
-				wd->yPosChanged = 0;
-				wd->dyPos = _walkData[_walkDataLastIndex - 1].y - wd->y;
-				int x = xScale - xScale / 2 + curX - 1;
-				if (x > 319) {
-					wd->clipSkipX = 1;
-					wd->clipWidth = 319 - (x - xScale);
-					wd->xPosChanged = 0;
-					wd->dxPos = 0;
-				} else {
-					x = curX - xScale / 2;
-					if (x < 0) {
-						wd->clipWidth = x + xScale;
-						wd->clipSkipX = xScale - wd->clipWidth + 1;
-						wd->xPosChanged = 0;
-						wd->dxPos = _walkData[_walkDataLastIndex - 1].x - wd->x;
-					} else {
-						wd->clipWidth = xScale;
-						wd->clipSkipX = 1;
-						wd->xPosChanged = 0;
-						wd->dxPos = _walkData[_walkDataLastIndex - 1].x - wd->x;
-					}
-				}
-				++_walkDataLastIndex;
-				vStepCur += vStepDist;
-			}
-		} else {
-			if (_walkCurrentPosLocalVar == 1 && _walkToObjectPosX == dstX && _walkToObjectPosY == dstY) {
-				_walkData[_walkDataLastIndex] = _walkData[_walkDataLastIndex - 1];
-				_walkData[_walkDataLastIndex].posNum = 1;
-				_walkData[_walkDataLastIndex].frameNum = 1;
-				++_walkDataLastIndex;
-			}
-		}
-		lookupScale(dstX, dstY, scale, xScale, yScale);
-		wd = &_walkData[_walkDataLastIndex];
-		wd->setPos(dstX, dstY, 1, _walkCurrentFrame);
-		WalkData::setNextFrame(kFacingPositionBack, _walkCurrentFrame);
-		wd->setScale(scale, scale);
-		wd->yPosChanged = 0;
-		wd->dyPos = _walkData[_walkDataLastIndex - 1].y - wd->y;
-		int x = xScale - xScale / 2 + dstX - 1;
-		if (x > 319) {
-			wd->clipSkipX = 1;
-			wd->clipWidth = 319 - (x - xScale / 2);
-			wd->xPosChanged = 0;
-			wd->dxPos = 0;
-		} else {
-			x = dstX - xScale / 2;
-			if (x < 0) {
-				wd->clipWidth = xScale + x;
-				wd->clipSkipX = xScale - wd->clipWidth + 1;
-				wd->xPosChanged = 0;
-				wd->dxPos = curX - dstX;
-			} else {
-				wd->clipWidth = xScale;
-				wd->clipSkipX = 1;
-				wd->xPosChanged = 0;
-				wd->dxPos = curX - dstX;
-			}
-		}
-		++_walkDataLastIndex;
-	} else {
-		int vStepsCount = getVerticalStepsCount(dstX, dstY, srcX, srcY);
-		if (vStepsCount > 0) {
-			vStepCur = vStepDist = (dstX - srcX) / (float)vStepsCount;
-			for (int i = 1; i <= vStepsCount; ++i) {
-				wd = &_walkData[_walkDataLastIndex];
-				curX = srcX + truncReal(vStepCur);
-				lookupScale(curX, curY, scale, xScale, yScale);
-				curY -= yScale;
-				lookupScale(curX, curY, scale, xScale, yScale);
-				wd->setPos(curX, curY, 1, _walkCurrentFrame);
-				WalkData::setNextFrame(kFacingPositionBack, _walkCurrentFrame);
-				lookupScale(curX, curY, scale, xScale, yScale);
-				wd->setScale(scale, scale);
-				wd->yPosChanged = 0;
-				wd->dyPos = _walkData[_walkDataLastIndex - 1].y - wd->y;
-				int x = xScale - xScale / 2 + curX - 1;
-				if (x > 319) {
-					wd->clipSkipX = 1;
-					wd->clipWidth = 319 - (x - xScale);
-					wd->xPosChanged = 0;
-					wd->dxPos = wd->x - _walkData[_walkDataLastIndex - 1].x;
-				} else {
-					x = curX - xScale / 2;
-					if (x < 0) {
-						wd->clipWidth = x + xScale;
-						wd->clipSkipX = xScale - wd->clipWidth + 1;
-						wd->xPosChanged = 1;
-						wd->dxPos = 0;
-					} else {
-						wd->clipWidth = xScale;
-						wd->clipSkipX = 1;
-						wd->xPosChanged = 1;
-						wd->dxPos = wd->x - _walkData[_walkDataLastIndex - 1].x;
-					}
-				}
-				++_walkDataLastIndex;
-				vStepCur += vStepDist;
-			}
-		} else {
-			if (_walkCurrentPosLocalVar == 1 && _walkToObjectPosX == dstX && _walkToObjectPosY == dstY) {
-				_walkData[_walkDataLastIndex] = _walkData[_walkDataLastIndex - 1];
-				_walkData[_walkDataLastIndex].posNum = 1;
-				_walkData[_walkDataLastIndex].frameNum = 1;
-				++_walkDataLastIndex;
-			}
-		}
-		lookupScale(dstX, dstY, scale, xScale, yScale);
-		wd = &_walkData[_walkDataLastIndex];
-		wd->setPos(dstX, dstY, 1, _walkCurrentFrame);
-		WalkData::setNextFrame(kFacingPositionBack, _walkCurrentFrame);
-		wd->setScale(scale, scale);
-		wd->yPosChanged = 0;
-		wd->dyPos = _walkData[_walkDataLastIndex - 1].y - wd->y;
-		int x = xScale - xScale / 2 + dstX - 1;
-		if (x > 319) {
-			wd->clipSkipX = 1;
-			int16 _dx = x - xScale;
-			int16 _cx = 319 - _dx;
-			wd->clipWidth = _cx;
-			wd->xPosChanged = 0;
-			wd->dxPos = dstX - curX;
-		} else {
-			x = dstX - xScale / 2;
-			if (x < 0) {
-				wd->clipWidth = xScale + x;
-				wd->clipSkipX = xScale - wd->clipWidth + 1;
-				wd->xPosChanged = 1;
-				wd->dxPos = 0;
-			} else {
-				wd->clipWidth = xScale;
-				wd->clipSkipX = 1;
-				wd->xPosChanged = 1;
-				wd->dxPos = dstX - curX;
-			}
-		}
-		++_walkDataLastIndex;
-	}
-}
-
-void IgorEngine::buildWalkPathAreaDownDirection(int srcX, int srcY, int dstX, int dstY) {
-	int _walkCurrentPosLocalVar = _walkCurrentPos;
-	if (_walkCurrentPos == 1) {
-		_walkCurrentPos = 3;
-		_walkData[_walkDataLastIndex] = _walkData[_walkDataLastIndex - 1];
-		_walkData[_walkDataLastIndex].posNum = (srcX > dstX) ? kFacingPositionLeft : kFacingPositionRight;
-		_walkData[_walkDataLastIndex].frameNum = 1;
-		++_walkDataLastIndex;
-	} else {
-		_walkCurrentPos = 3;
-	}
-	if (_walkCurrentFrame > 6) {
-		_walkCurrentFrame -= 6;
-	}
-	WalkData *wd;
-	uint8 scale, xScale, yScale;
-	float vStepCur, vStepDist;
-	int curX = srcX;
-	int curY = srcY;
-	if (srcX > dstX) {
-		int vStepsCount = getVerticalStepsCount(srcX, srcY, dstX, dstY);
-		if (vStepsCount > 0) {
-			vStepCur = vStepDist = (srcX - dstX) / (float)vStepsCount;
-			for (int i = 1; i <= vStepsCount; ++i) {
-				wd = &_walkData[_walkDataLastIndex];
-				curX = srcX - truncReal(vStepCur);
-				lookupScale(curX, curY, scale, xScale, yScale);
-				curY += yScale;
-				lookupScale(curX, curY, scale, xScale, yScale);
-				wd->setPos(curX, curY, 3, _walkCurrentFrame);
-				WalkData::setNextFrame(kFacingPositionFront, _walkCurrentFrame);
-				wd->setScale(scale, scale);
-				wd->yPosChanged = 1;
-				wd->dyPos = wd->y - _walkData[_walkDataLastIndex - 1].y;
-				int x = xScale - xScale / 2 + curX - 1;
-				if (x > 319) {
-					wd->clipSkipX = 1;
-					wd->clipWidth = 319 - (x - xScale);
-					wd->xPosChanged = 0;
-					wd->dxPos = 0;
-				} else {
-					x = curX - xScale / 2;
-					if (x < 0) {
-						wd->clipWidth = x + xScale;
-						wd->clipSkipX = xScale - wd->clipWidth + 1;
-						wd->xPosChanged = 0;
-						wd->dxPos = _walkData[_walkDataLastIndex - 1].x - wd->x;
-					} else {
-						wd->clipWidth = xScale;
-						wd->clipSkipX = 1;
-						wd->xPosChanged = 0;
-						wd->dxPos = _walkData[_walkDataLastIndex - 1].x - wd->x;
-					}
-				}
-				++_walkDataLastIndex;
-				vStepCur += vStepDist;
-			}
-		} else {
-			if (_walkCurrentPosLocalVar == 3 && _walkToObjectPosX == dstX && _walkToObjectPosY == dstY) {
-				_walkData[_walkDataLastIndex] = _walkData[_walkDataLastIndex - 1];
-				_walkData[_walkDataLastIndex].posNum = 3;
-				_walkData[_walkDataLastIndex].frameNum = 1;
-				++_walkDataLastIndex;
-			}
-		}
-		lookupScale(dstX, dstY, scale, xScale, yScale);
-		wd = &_walkData[_walkDataLastIndex];
-		wd->setPos(dstX, dstY, 3, _walkCurrentFrame);
-		WalkData::setNextFrame(kFacingPositionFront, _walkCurrentFrame);
-		wd->setScale(scale, scale);
-		wd->yPosChanged = 1;
-		wd->dyPos = wd->y - _walkData[_walkDataLastIndex - 1].y;
-		int x = xScale - xScale / 2 + dstX - 1;
-		if (x > 319) {
-			wd->clipSkipX = 1;
-			wd->clipWidth = 319 - (x - xScale);
-			wd->xPosChanged = 0;
-			wd->dxPos = 0;
-		} else {
-			x = dstX - xScale / 2;
-			if (x < 0) {
-				wd->clipWidth = xScale + x;
-				wd->clipSkipX = xScale - wd->clipWidth + 1;
-				wd->xPosChanged = 0;
-				wd->dxPos = curX - dstX;
-			} else {
-				wd->clipWidth = xScale;
-				wd->clipSkipX = 1;
-				wd->xPosChanged = 0;
-				wd->dxPos = curX - dstX;
-			}
-		}
-		++_walkDataLastIndex;
-	} else {
-		int vStepsCount = getVerticalStepsCount(srcX, srcY, dstX, dstY);
-		if (vStepsCount > 0) {
-			vStepCur = vStepDist = (dstX - srcX) / (float)vStepsCount;
-			for (int i = 1; i <= vStepsCount; ++i) {
-				wd = &_walkData[_walkDataLastIndex];
-				curX = srcX + truncReal(vStepCur);
-				lookupScale(curX, curY, scale, xScale, yScale);
-				curY += yScale;
-				lookupScale(curX, curY, scale, xScale, yScale);
-				wd->setPos(curX, curY, 3, _walkCurrentFrame);
-				WalkData::setNextFrame(kFacingPositionFront, _walkCurrentFrame);
-				wd->setScale(scale, scale);
-				wd->yPosChanged = 1;
-				wd->dyPos = wd->y - _walkData[_walkDataLastIndex - 1].y;
-				int x = xScale - xScale / 2 + curX - 1;
-				if (x > 319) {
-					wd->clipSkipX = 1;
-					wd->clipWidth = 319 - (x - xScale);
-					wd->xPosChanged = 1;
-					wd->dxPos = wd->x - _walkData[_walkDataLastIndex - 1].x;
-				} else {
-					x = curX - xScale / 2;
-					if (x < 0) {
-						wd->clipWidth = x + xScale;
-						wd->clipSkipX = xScale - wd->clipWidth + 1;
-						wd->xPosChanged = 1;
-						wd->dxPos = 0;
-					} else {
-						wd->clipWidth = xScale;
-						wd->clipSkipX = 1;
-						wd->xPosChanged = 1;
-						wd->dxPos = wd->x - _walkData[_walkDataLastIndex - 1].x;
-					}
-				}
-				++_walkDataLastIndex;
-				vStepCur += vStepDist;
-			}
-		} else {
-			if (_walkCurrentPosLocalVar == 3 && _walkToObjectPosX == dstX && _walkToObjectPosY == dstY) {
-				_walkData[_walkDataLastIndex] = _walkData[_walkDataLastIndex - 1];
-				_walkData[_walkDataLastIndex].posNum = 3;
-				_walkData[_walkDataLastIndex].frameNum = 1;
-				++_walkDataLastIndex;
-			}
-		}
-		lookupScale(dstX, dstY, scale, xScale, yScale);
-		wd = &_walkData[_walkDataLastIndex];
-		wd->setPos(dstX, dstY, 3, _walkCurrentFrame);
-		WalkData::setNextFrame(kFacingPositionFront, _walkCurrentFrame);
-		wd->setScale(scale, scale);
-		wd->yPosChanged = 1;
-		wd->dyPos = wd->y - _walkData[_walkDataLastIndex - 1].y;
-		int x = xScale - xScale / 2 + dstX - 1;
-		if (x > 319) {
-			wd->clipSkipX = 1;
-			wd->clipWidth = 319 - (x - xScale);
-			wd->xPosChanged = 1;
-			wd->dxPos = dstX - curX;
-		} else {
-			x = dstX - xScale / 2;
-			if (x < 0) {
-				wd->clipWidth = xScale + x;
-				wd->clipSkipX = xScale - wd->clipWidth + 1;
-				wd->xPosChanged = 1;
-				wd->dxPos = 0;
-			} else {
-				wd->clipWidth = xScale;
-				wd->clipSkipX = 1;
-				wd->xPosChanged = 1;
-				wd->dxPos = dstX - curX;
-			}
-		}
-		++_walkDataLastIndex;
-	}
-}
-
-void IgorEngine::buildWalkPathAreaRightDirection(int srcX, int srcY, int dstX, int dstY) {
-	int _walkCurrentPosLocalVar = _walkCurrentPos;
-	if (_walkCurrentPos == kFacingPositionLeft) {
-		_walkCurrentPos = kFacingPositionRight;
-		_walkData[_walkDataLastIndex] = _walkData[_walkDataLastIndex - 1];
-		_walkData[_walkDataLastIndex].posNum = (srcY > dstY) ? kFacingPositionBack : kFacingPositionFront;
-		_walkData[_walkDataLastIndex].frameNum = 5;
-		++_walkDataLastIndex;
-	} else {
-		_walkCurrentPos = kFacingPositionRight;
-	}
-	WalkData *wd;
-	uint8 scale, xScale, xSkip;
-	float hStepCur, hStepDist;
-	int curX = srcX;
-	int curY = srcY;
-	if (srcY > dstY) {
-		int hStepsCount = getHorizontalStepsCount(srcX, dstY, dstX, srcY);
-		if (hStepsCount > 0) {
-			hStepCur = hStepDist = (srcY - dstY) / (float)hStepsCount;
-			for (int i = 1; i <= hStepsCount; ++i) {
-				wd = &_walkData[_walkDataLastIndex];
-				scale = _walkYScaleRoom[(_walkXScaleRoom[curX] - 1) * 144 + curY];
-				xSkip = _walkScaleTable[0x769 + scale * 8 + _walkCurrentFrame];
-				if ((curX + xSkip) >= dstX) {
-					break;
-				}
-				curX += xSkip;
-				curY = srcY - truncReal(hStepCur);
-				wd->setPos(curX, curY, 2, _walkCurrentFrame);
-				scale = _walkYScaleRoom[(_walkXScaleRoom[curX] - 1) * 144 + curY];
-				xScale = _walkWidthScaleTable[scale - 1];
-				wd->setScale(scale, scale);
-				wd->yPosChanged = 0;
-				wd->dyPos = _walkData[_walkDataLastIndex - 1].y - wd->y;
-				int x = xScale - xScale / 2 + curX - 1;
-				if (x > 319) {
-					wd->clipSkipX = 1;
-					wd->clipWidth = 319 - (x - xScale);
-					wd->xPosChanged = 1;
-					wd->dxPos = xSkip;
-				} else {
-					x = x - xScale / 2;
-					if (x < 0) {
-						wd->clipWidth = x + xScale;
-						wd->clipSkipX = xScale - wd->clipWidth + 1;
-						wd->xPosChanged = 1;
-						wd->dxPos = 0;
-					} else {
-						wd->clipWidth = xScale;
-						wd->clipSkipX = 1;
-						wd->xPosChanged = 1;
-						wd->dxPos = xSkip;
-					}
-				}
-				++_walkDataLastIndex;
-				hStepCur += hStepDist;
-				WalkData::setNextFrame(kFacingPositionRight, _walkCurrentFrame);
-			}
-		} else {
-			if (_walkCurrentPosLocalVar == 2 && _walkToObjectPosX == dstX && _walkToObjectPosY == dstY) {
-				_walkData[_walkDataLastIndex] = _walkData[_walkDataLastIndex - 1];
-				_walkData[_walkDataLastIndex].posNum = 2;
-				_walkData[_walkDataLastIndex].frameNum = 1;
-				++_walkDataLastIndex;
-			}
-		}
-		wd = &_walkData[_walkDataLastIndex];
-		wd->setPos(dstX, dstY, 2, _walkCurrentFrame);
-		scale = _walkYScaleRoom[(_walkXScaleRoom[dstX] - 1) * 144 + dstY];
-		xScale = _walkWidthScaleTable[scale - 1];
-		wd->setScale(scale, scale);
-		wd->yPosChanged = 0;
-		wd->dyPos = _walkData[_walkDataLastIndex - 1].y - wd->y;
-		int x = xScale - xScale / 2 - 1;
-		if (x > 319) {
-			wd->clipSkipX = 1;
-			wd->clipWidth = 319 - (x - xScale);
-			wd->xPosChanged = 1;
-			wd->dxPos = dstX - curX;
-		} else {
-			x = dstX - xScale / 2;
-			if (x < 0) {
-				wd->clipWidth = xScale + x;
-				wd->clipSkipX = xScale - wd->clipWidth + 1;
-				wd->xPosChanged = 1;
-				wd->dxPos = 0;
-			} else {
-				wd->clipWidth = xScale;
-				wd->clipSkipX = 1;
-				wd->xPosChanged = 1;
-				wd->dxPos = dstX - curX;
-			}
-		}
-		++_walkDataLastIndex;
-		WalkData::setNextFrame(kFacingPositionLeft, _walkCurrentFrame);
-	} else {
-		int hStepsCount = getHorizontalStepsCount(srcX, srcY, dstX, dstY);
-		if (hStepsCount > 0) {
-			hStepCur = hStepDist = (dstY - srcY) / (float)hStepsCount;
-			for (int i = 1; i <= hStepsCount; ++i) {
-				wd = &_walkData[_walkDataLastIndex];
-				scale = _walkYScaleRoom[(_walkXScaleRoom[curX] - 1) * 144 + curY];
-				xSkip = _walkScaleTable[0x769 + scale * 8 + _walkCurrentFrame];
-				if (curX + xSkip >= dstX) {
-					break;
-				}
-				curX += xSkip;
-				curY = srcY + truncReal(hStepCur);
-				_walkData[_walkDataLastIndex].setPos(curX, curY, 2, _walkCurrentFrame);
-				scale = _walkYScaleRoom[(_walkXScaleRoom[curX] - 1) * 144 + curY];
-				xScale = _walkWidthScaleTable[scale - 1];
-				wd->setScale(scale, scale);
-				wd->yPosChanged = 1;
-				wd->dyPos = wd->y - _walkData[_walkDataLastIndex - 1].y;
-				int x = xScale - xScale / 2 + curX - 1;
-				if (x > 319) {
-					wd->clipSkipX = 1;
-					wd->clipWidth = 319 - (x - xScale);
-					wd->xPosChanged = 1;
-					wd->dxPos = xSkip;
-				} else {
-					x = curX - xScale / 2;
-					if (x < 0) {
-						wd->clipWidth = x + xScale;
-						wd->clipSkipX = xScale - wd->clipWidth + 1;
-						wd->xPosChanged = 1;
-						wd->dxPos = 0;
-					} else {
-						wd->clipWidth = xScale;
-						wd->clipSkipX = 1;
-						wd->xPosChanged = 1;
-						wd->dxPos = xSkip;
-					}
-				}
-				++_walkDataLastIndex;
-				hStepCur += hStepDist;
-				WalkData::setNextFrame(kFacingPositionRight, _walkCurrentFrame);
-			}
-		} else {
-			if (_walkCurrentPosLocalVar == 2 && _walkToObjectPosX == dstX && _walkToObjectPosY == dstY) {
-				_walkData[_walkDataLastIndex] = _walkData[_walkDataLastIndex - 1];
-				_walkData[_walkDataLastIndex].posNum = 2;
-				_walkData[_walkDataLastIndex].frameNum = 1;
-				++_walkDataLastIndex;
-			}
-		}
-		wd = &_walkData[_walkDataLastIndex];
-		wd->setPos(dstX, dstY, 2, _walkCurrentFrame);
-		scale = _walkYScaleRoom[(_walkXScaleRoom[dstX] - 1) * 144 + dstY];
-		xScale = _walkWidthScaleTable[scale - 1];
-		wd->setScale(scale, scale);
-		wd->yPosChanged = 1;
-		wd->dyPos = wd->y - _walkData[_walkDataLastIndex - 1].y;
-		int x = xScale - xScale / 2 + dstX - 1;
-		if (x > 319) {
-			wd->clipSkipX = 1;
-			wd->clipWidth = 319 - (x - xScale);
-			wd->xPosChanged = 1;
-			wd->dxPos = dstX - curX;
-		} else {
-			x = dstX - xScale / 2;
-			if (x < 0) {
-				wd->clipWidth = xScale + x;
-				wd->clipSkipX = xScale - wd->clipWidth + 1;
-				wd->xPosChanged = 1;
-				wd->dxPos = 0;
-			} else {
-				wd->clipWidth = xScale;
-				wd->clipSkipX = 1;
-				wd->xPosChanged = 1;
-				wd->dxPos = dstX - curX;
-			}
-		}
-		++_walkDataLastIndex;
-		WalkData::setNextFrame(kFacingPositionRight, _walkCurrentFrame);
-	}
-}
-
-void IgorEngine::buildWalkPathAreaLeftDirection(int srcX, int srcY, int dstX, int dstY) {
-	int _walkCurrentPosLocalVar = _walkCurrentPos;
-	if (_walkCurrentPos == kFacingPositionRight) {
-		_walkCurrentPos = kFacingPositionLeft;
-		_walkData[_walkDataLastIndex] = _walkData[_walkDataLastIndex - 1];
-		_walkData[_walkDataLastIndex].posNum = (srcY > dstY) ? kFacingPositionBack : kFacingPositionFront;
-		_walkData[_walkDataLastIndex].frameNum = 5;
-		++_walkDataLastIndex;
-	} else {
-		_walkCurrentPos = kFacingPositionLeft;
-	}
-	WalkData *wd;
-	uint8 scale, xScale, xSkip;
-	float hStepCur, hStepDist;
-	int curX = srcX;
-	int curY = srcY;
-	if (srcY > dstY) {
-		int hStepsCount = getHorizontalStepsCount(dstX, dstY, srcX, srcY);
-		if (hStepsCount > 0) {
-			hStepCur = hStepDist = (srcY - dstY) / (float)hStepsCount;
-			for (int i = 1; i <= hStepsCount; ++i) {
-				wd = &_walkData[_walkDataLastIndex];
-				scale = _walkYScaleRoom[(_walkXScaleRoom[curX] - 1) * 144 + curY];
-				xSkip = _walkScaleTable[0x769 + scale * 8 + _walkCurrentFrame];
-				if ((curX - xSkip) <= dstX) {
-					break;
-				}
-				curX -= xSkip;
-				curY = srcY - truncReal(hStepCur);
-				wd->setPos(curX, curY, 4, _walkCurrentFrame);
-				scale = _walkYScaleRoom[(_walkXScaleRoom[curX] - 1) * 144 + curY];
-				xScale = _walkWidthScaleTable[scale - 1];
-				wd->setScale(scale, scale);
-				wd->yPosChanged = 0;
-				wd->dyPos = _walkData[_walkDataLastIndex - 1].y - wd->y;
-				int x = xScale - xScale / 2 + curX - 1;
-				if (x > 319) {
-					wd->clipSkipX = 1;
-					wd->clipWidth = 319 - (x - xScale);
-					wd->xPosChanged = 0;
-					wd->dxPos = 0;
-				} else {
-					x = curX - xScale / 2;
-					if (x < 0) {
-						wd->clipWidth = x + xScale;
-						wd->clipSkipX = xScale - wd->clipWidth + 1;
-						wd->xPosChanged = 0;
-						wd->dxPos = xSkip;
-					} else {
-						wd->clipWidth = xScale;
-						wd->clipSkipX = 1;
-						wd->xPosChanged = 0;
-						wd->dxPos = xSkip;
-					}
-				}
-				++_walkDataLastIndex;
-				hStepCur += hStepDist;
-				WalkData::setNextFrame(kFacingPositionLeft, _walkCurrentFrame);
-			}
-		} else {
-			if (_walkCurrentPosLocalVar == 4 && _walkToObjectPosX == dstX && _walkToObjectPosY == dstY) {
-				_walkData[_walkDataLastIndex] = _walkData[_walkDataLastIndex - 1];
-				_walkData[_walkDataLastIndex].posNum = 4;
-				_walkData[_walkDataLastIndex].frameNum = 1;
-				++_walkDataLastIndex;
-			}
-		}
-		wd = &_walkData[_walkDataLastIndex];
-		wd->setPos(dstX, dstY, 4, _walkCurrentFrame);
-		scale = _walkYScaleRoom[(_walkXScaleRoom[dstX] - 1) * 144 + dstY];
-		xScale = _walkWidthScaleTable[scale - 1];
-		wd->setScale(scale, scale);
-		wd->yPosChanged = 0;
-		wd->dyPos = curY - dstY;
-		int x = xScale - xScale / 2 + dstX - 1;
-		if (x > 319) {
-			wd->clipSkipX = 1;
-			wd->clipWidth = 319 - (x - xScale);
-			wd->xPosChanged = 0;
-			wd->dxPos = 0;
-		} else {
-			x = dstX - xScale / 2;
-			if (x < 0) {
-				wd->clipWidth = xScale + x;
-				wd->clipSkipX = xScale - wd->clipWidth + 1;
-				wd->xPosChanged = 0;
-				wd->dxPos = curX - dstX;
-			} else {
-				wd->clipWidth = xScale;
-				wd->clipSkipX = 1;
-				wd->xPosChanged = 0;
-				wd->dxPos = curX - dstX;
-			}
-		}
-		++_walkDataLastIndex;
-		WalkData::setNextFrame(kFacingPositionLeft, _walkCurrentFrame);
-	} else {
-		int hStepsCount = getHorizontalStepsCount(dstX, srcY, srcX, dstY);
-		if (hStepsCount > 0) {
-			hStepCur = hStepDist = (dstY - srcY) / (float)hStepsCount;
-			for (int i = 1; i <= hStepsCount; ++i) {
-				wd = &_walkData[_walkDataLastIndex];
-				scale = _walkYScaleRoom[(_walkXScaleRoom[curX] - 1) * 144 + curY];
-				xSkip = _walkScaleTable[0x769 + scale * 8 + _walkCurrentFrame];
-				if (curX - xSkip <= dstX) {
-					break;
-				}
-				curX -= xSkip;
-				curY = srcY + truncReal(hStepCur);
-				wd->setPos(curX, curY, 4, _walkCurrentFrame);
-				scale = _walkYScaleRoom[(_walkXScaleRoom[curX] - 1) * 144 + curY];
-				xScale = _walkWidthScaleTable[scale - 1];
-				wd->setScale(scale, scale);
-				wd->yPosChanged = 1;
-				wd->dyPos = wd->y - _walkData[_walkDataLastIndex - 1].y;
-				int x = xScale - xScale / 2 + curX - 1;
-				if (x > 319) {
-					wd->clipSkipX = 1;
-					wd->clipWidth = 319 - (x - xScale);
-					wd->xPosChanged = 0;
-					wd->dxPos = 0;
-				} else {
-					x = curX - xScale / 2;
-					if (x < 0) {
-						wd->clipWidth = x + xScale;
-						wd->clipSkipX = xScale - wd->clipWidth + 1;
-						wd->xPosChanged = 0;
-						wd->dxPos = xSkip;
-					} else {
-						wd->clipWidth = xScale;
-						wd->clipSkipX = 1;
-						wd->xPosChanged = 0;
-						wd->dxPos = xSkip;
-					}
-				}
-				++_walkDataLastIndex;
-				hStepCur += hStepDist;
-				WalkData::setNextFrame(kFacingPositionLeft, _walkCurrentFrame);
-			}
-		} else {
-			if (_walkCurrentPosLocalVar == 4 && _walkToObjectPosX == dstX && _walkToObjectPosY == dstY) {
-				_walkData[_walkDataLastIndex] = _walkData[_walkDataLastIndex - 1];
-				_walkData[_walkDataLastIndex].posNum = 4;
-				_walkData[_walkDataLastIndex].frameNum = 1;
-				++_walkDataLastIndex;
-			}
-		}
-		wd = &_walkData[_walkDataLastIndex];
-		wd->setPos(dstX, dstY, 4, _walkCurrentFrame);
-		scale = _walkYScaleRoom[(_walkXScaleRoom[curX] - 1) * 144 + curY];
-		xScale = _walkWidthScaleTable[scale - 1];
-		wd->setScale(scale, scale);
-		wd->yPosChanged = 1;
-		wd->dyPos = curY - dstY;
-		int x = xScale - xScale / 2 + dstX - 1;
-		if (x > 319) {
-			wd->clipSkipX = 1;
-			wd->clipWidth = 319 - (x - xScale);
-			wd->xPosChanged = 0;
-			wd->dxPos = 0;
-		} else {
-			x = dstX - xScale / 2;
-			if (x < 0) {
-				wd->clipWidth = xScale + x;
-				wd->clipSkipX = xScale - wd->clipWidth + 1;
-				wd->xPosChanged = 0;
-				wd->dxPos = curX - dstX;
-			} else {
-				wd->clipWidth = xScale;
-				wd->clipSkipX = 1;
-				wd->xPosChanged = 0;
-				wd->dxPos = curX - dstX;
-			}
-		}
-		++_walkDataLastIndex;
-		WalkData::setNextFrame(kFacingPositionLeft, _walkCurrentFrame);
-	}
-}
-
-void IgorEngine::waitForIgorMove() {
-	_gameTicks = 0;
-	do {
-		if (compareGameTick(1, 16)) {
-			if (_walkDataCurrentIndex > _walkDataLastIndex) {
-				_gameState.igorMoving = false;
-				_walkDataLastIndex = _walkDataCurrentIndex;
-			}
-			if (_gameState.igorMoving) {
-				moveIgor(_walkData[_walkDataCurrentIndex].posNum, _walkData[_walkDataCurrentIndex].frameNum);
-				++_walkDataCurrentIndex;
-			}
-		}
-		if (_updateRoomBackground) {
-			(this->*_updateRoomBackground)();
-		}
-		waitForTimer();
-	} while (_gameState.igorMoving);
-}
-
-void IgorEngine::setRoomWalkBounds(int x1, int y1, int x2, int y2) {
-	assert(x1 <= x2 && y1 <= y2);
-	_roomWalkBounds.x1 = x1;
-	_roomWalkBounds.x2 = x2;
-	_roomWalkBounds.y1 = y1;
-	_roomWalkBounds.y2 = y2;
-}
-
-void IgorEngine::fixWalkPosition(int *x, int *y) {
-	int xPos = *x;
-	if (xPos < _roomWalkBounds.x1) {
-		xPos = _roomWalkBounds.x1;
-	}
-	if (xPos > _roomWalkBounds.x2) {
-		xPos = _roomWalkBounds.x2;
-	}
-	if (getPart() == 22) {
-		*x = xPos;
-		*y = _roomWalkBounds.y1;
-		return;
-	}
-	int yPos = *y;
-	if (getPart() == 13) {
-		if (xPos >= 92 && xPos <= 186 && yPos > 127) {
-			*x = xPos;
-			*y = 127;
-			return;
-		}
-		if (xPos >= 191 && xPos <= 289 && yPos > 127) {
-			*x = xPos;
-			*y = 127;
-			return;
-		}
-	}
-	// skip areas from top to bottom
-	while (_roomObjectAreasTable[_screenLayer2[yPos * 320 + xPos]].area == 0 && yPos < _roomWalkBounds.y2) {
-		++yPos;
-	}
-	if (getPart() == 17) {
-		if (yPos != 143 || _roomObjectAreasTable[_screenLayer2[45760 + xPos]].area != 0) {
-			*x = xPos;
-			*y = yPos;
-			return;
-		}
-	}
-	// skip areas from bottom to top
-	while (_roomObjectAreasTable[_screenLayer2[yPos * 320 + xPos]].area == 0 && yPos > _roomWalkBounds.y1) {
-		--yPos;
-	}
-	*x = xPos;
-	*y = yPos;
-}
-
-void IgorEngine::recolorDialogueChoice(int num, bool highlight) {
-	uint8 *p = _screenVGA + 320 * (11 * num + 135);
-	for (int i = 0; i < 320 * 11; ++i) {
-		if (highlight) {
-			if (p[i] == 240) {
-				p[i] = 241;
-			}
-		} else {
-			if (p[i] == 241) {
-				p[i] = 240;
-			}
-		}
-	}
-}
-
-void IgorEngine::handleDialogue(int x, int y, int r, int g, int b) {
-	_gameState.dialogueStarted = true;
-	_gameState.dialogueChoiceStart = 1;
-	_gameState.dialogueChoiceCount = 1;
-	_dialogueEnded = false;
-	if (getPart() == 12 && _objectsState[44] == 0) {
-		_gameState.dialogueData[6] = 1;
-		dialogueReplyToQuestion(x, y, r, g, b, 40);
-	}
-	do {
-		if (getPart() == 15 && _objectsState[48] == 0) {
-			_gameState.dialogueData[6] = 0;
-		}
-		drawDialogueChoices();
-		(this->*_updateDialogue)(kUpdateDialogueAnimStanding);
-		_dialogueChoiceSelected = selectDialogue();
-		if (_dialogueChoiceSelected == 0) {
-			break;
-		} else if (_dialogueChoiceSelected == -1) {
-			return;
-		}
-		dialogueAskQuestion();
-		dialogueReplyToQuestion(x, y, r, g, b);
-		int offset = (_dialogueInfo[_dialogueChoiceSelected] - 1) * 6 + (_gameState.dialogueChoiceCount - 1) * 30 + (_gameState.dialogueChoiceStart - 1) * _roomDataOffsets.dlg.matSize;
-		int code = _gameState.dialogueData[offset + 5];
-		if ((code >= 1 && code <= 99) || (getPart() == 15 && code == 1)) {
-			_gameState.dialogueData[offset] = 0;
-			if (getPart() == 21 && (code == 60 || code == 70 || code == 80) && _dialogueInfo[0] == 1) {
-				_gameState.dialogueData[offset + 2] = 4;
-			}
-			if (getPart() == 33 && (code == 21 || code == 22 || code == 23) && _dialogueInfo[0] == 1) {
-				_gameState.dialogueData[offset + 2] = 2;
-			}
-		}
-		debugC(9, kDebugEngine, "handleDialogue() action %d offset %d", _gameState.dialogueData[offset + 2], offset);
-		switch (_gameState.dialogueData[offset + 2]) {
-		case 1:
-			_gameState.dialogueChoiceCount = _gameState.dialogueData[offset + 1];
-			++_gameState.dialogueChoiceStart;
-			break;
-		case 2:
-			_gameState.dialogueChoiceCount = _gameState.dialogueData[offset + 1];
-			--_gameState.dialogueChoiceStart;
-			break;
-		case 4:
-			_gameState.dialogueChoiceCount = _gameState.dialogueData[offset + 1];
-			_gameState.dialogueChoiceStart -= 2;
-			break;
-		case 0:
-			_dialogueEnded = true;
-			break;
-		}
-		debugC(9, kDebugEngine, "handleDialogue() end %d start %d count %d", _dialogueEnded, _gameState.dialogueChoiceStart, _gameState.dialogueChoiceCount);
-	} while (!_dialogueEnded);
-	memset(_screenVGA + 46080, 0, 17920);
-	drawVerbsPanel();
-	drawInventory(_inventoryInfo[72], 0);
-	_currentAction.verb = kVerbWalk;
-	_gameState.dialogueStarted = false;
-}
-
-void IgorEngine::drawDialogueChoices() {
-	memset(_screenVGA + 46080, 0, 56 * 320);
-	setPaletteColor(240, 0, 0, 0);
-	_dialogueInfo[0] = 0;
-	for (int i = 1; i <= 5; ++i) {
-		_dialogueInfo[i] = 0;
-	}
-	for (int i = 1; i <= 5; ++i) {
-		int offset = (i - 1) * 6 + (_gameState.dialogueChoiceCount - 1) * 30 + (_gameState.dialogueChoiceStart - 1) * _roomDataOffsets.dlg.matSize;
-		if (_gameState.dialogueData[offset] == 1) {
-			++_dialogueInfo[0];
-			_dialogueInfo[_dialogueInfo[0]] = i;
-			int num = _gameState.dialogueData[offset + 3] - 1;
-			char questionText[128];
-			sprintf(questionText, "@%s %s", _dialogueQuestions[num][0], _dialogueQuestions[num][1]);
-			drawString(_screenVGA, questionText, 0, _dialogueInfo[0] * 11 + 135, 240, 0, 0);
-		}
-		 debugC(9, kDebugEngine, "drawDialogueChoices() i %d state %d num %d", i, _gameState.dialogueData[offset], _gameState.dialogueData[offset + 3]);
-	}
-	setPaletteColor(240, _paletteBuffer[0x2F6 + 1], _paletteBuffer[0x2F6 + 2], _paletteBuffer[0x2F6 + 3]);
-	setPaletteColor(241, _paletteBuffer[0x2F0 + 1], _paletteBuffer[0x2F0 + 2], _paletteBuffer[0x2F0 + 3]);
-}
-
-int IgorEngine::selectDialogue() {
-	showCursor();
-	int hoveredChoice = 0;
-	bool end = false;
-	do {
-		int currentChoice = (_inputVars[kInputCursorYPos] - 134) / 11;
-		if (currentChoice < 0) {
-			currentChoice = 0;
-		}
-
-		if (currentChoice != hoveredChoice) {
-			if (hoveredChoice != 0) {
-				recolorDialogueChoice(hoveredChoice, false);
-			}
-			hoveredChoice = currentChoice;
-			if (hoveredChoice != 0) {
-				recolorDialogueChoice(hoveredChoice, true);
-			}
-		}
-		if (_inputVars[kInputClick]) {
-			if (hoveredChoice != 0 && hoveredChoice <= _dialogueInfo[0]) {
-				end = true;
-			}
-			_inputVars[kInputClick] = 0;
-		}
-
-		waitForTimer();
-	} while (!end && !_eventQuitGame);
-	hideCursor();
-	return hoveredChoice;
-}
-
-void IgorEngine::dialogueAskQuestion() {
-	memset(_screenVGA + 46080, 0, 17920);
-	int offset = (_dialogueInfo[_dialogueChoiceSelected] - 1) * 6 + (_gameState.dialogueChoiceCount - 1) * 30 + (_gameState.dialogueChoiceStart - 1) * _roomDataOffsets.dlg.matSize;
-	int num = _gameState.dialogueData[offset + 3] - 1;
-	if (getPart() == 17) {
-		num = 5;
-	}
-	debugC(9, kDebugEngine, "dialogueAskQuestion() num %d offset %d", num, offset);
-	strcpy(_globalDialogueTexts[250], _dialogueQuestions[num][0]);
-	strcpy(_globalDialogueTexts[251], _dialogueQuestions[num][1]);
-	if (_globalDialogueTexts[251][0]) {
-		ADD_DIALOGUE_TEXT(250, 2);
-	} else {
-		ADD_DIALOGUE_TEXT(250, 1);
-	}
-	SET_DIALOGUE_TEXT(1, 1);
-	startIgorDialogue();
-	waitForEndOfIgorDialogue();
-}
-
-void IgorEngine::dialogueReplyToQuestion(int x, int y, int r, int g, int b, int reply) {
-	if (reply == 0) {
-		int offset = (_dialogueInfo[_dialogueChoiceSelected] - 1) * 6 + (_gameState.dialogueChoiceCount - 1) * 30 + (_gameState.dialogueChoiceStart - 1) * _roomDataOffsets.dlg.matSize;
-		reply = _gameState.dialogueData[offset + 4];
-		debugC(9, kDebugEngine, "dialogueReplyToQuestion() dialogue choice %d reply %d", _dialogueChoiceSelected, reply);
-		if (reply == 0) {
-			return;
-		}
-	}
-	int offset = 30 + _roomDataOffsets.dlg.matSize + reply;
-	int count = _gameState.dialogueData[offset - 1];
-	int dialogueIndex = 250;
-	for (int i = 0; i < count; ++i) {
-		int num = _gameState.dialogueData[offset] - 1;
-		int len = _gameState.dialogueData[offset + 1];
-		debugC(9, kDebugEngine, "dialogueReplyToQuestion() reply %d %d offset %d", num, len, offset);
-		ADD_DIALOGUE_TEXT(dialogueIndex, len);
-		for (int j = 0; j < len; ++j) {
-			strcpy(_globalDialogueTexts[dialogueIndex], _dialogueReplies[num + j]);
-			++dialogueIndex;
-		}
-		offset += 2;
-	}
-	SET_DIALOGUE_TEXT(1, count);
-	startCutsceneDialogue(x, y, r, g, b);
-	waitForEndOfCutsceneDialogue(x, y, r, g, b);
-}
-
-} // namespace Igor