scripts.cpp

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#include "common/scummsys.h"
#include "access/access.h"
#include "access/resources.h"
#include "access/scripts.h"

namespace Access {

Scripts::Scripts(AccessEngine *vm) : Manager(vm) {
	_resource = nullptr;
	_data = nullptr;
	_sequence = 0;
	_endFlag = false;
	_returnCode = 0;
	_choice = 0;
	_choiceStart = 0;
	_charsOrg = Common::Point(0, 0);
	_texsOrg = Common::Point(0, 0);
}

Scripts::~Scripts() {
	freeScriptData();
}

void Scripts::setScript(Resource *res, bool restartFlag) {
	_resource = res;
	_data = res->_stream;
	_endFlag = restartFlag;
}

void Scripts::freeScriptData() {
	delete _resource;
	_resource = nullptr;
	_data = nullptr;
}

void Scripts::searchForSequence() {
	assert(_data);

	_data->seek(0);
	int sequenceId;
	do {
		while (_data->readByte() != SCRIPT_START_BYTE) ;
		sequenceId = _data->readUint16LE();
	} while (sequenceId != _sequence);
}

void Scripts::charLoop() {
	bool endFlag = _endFlag;
	int pos = _data->pos();

	_sequence = 2000;
	searchForSequence();
	_vm->_images.clear();
	_vm->_buffer2.copyFrom(_vm->_buffer1);
	_vm->_newRects.clear();

	executeScript();
	_vm->plotList1();
	_vm->copyBlocks();

	_data->seek(pos);
	_endFlag = endFlag;
}

void Scripts::findNull() {
	// No implementation required in ScummVM, the strings in the script files are already skipped by the use of readByte()
}

int Scripts::executeScript() {
	assert(_data);
	_endFlag = false;
	_returnCode = 0;

	do {
		// Get next command, skipping over script start start if it's being pointed to
		while ((_scriptCommand = _data->readByte()) == SCRIPT_START_BYTE)
			_data->skip(2);

		if (_scriptCommand < 0x80)
			error("Unexpected opcode value %d", _scriptCommand);

		executeCommand(_scriptCommand - 0x80);
	} while (!_endFlag && !_vm->shouldQuitOrRestart());

	return _returnCode;
}

typedef void(Scripts::*ScriptMethodPtr)();

void Scripts::executeCommand(int commandIndex) {
	static const ScriptMethodPtr COMMAND_LIST[] = {
		&Scripts::cmdObject, &Scripts::cmdEndObject, &Scripts::cmdJumpLook,
		&Scripts::cmdJumpHelp, &Scripts::cmdJumpGet, &Scripts::cmdJumpMove,
		&Scripts::cmdJumpUse, &Scripts::cmdJumpTalk, &Scripts::cmdNull,
		&Scripts::cmdPrint, &Scripts::cmdRetPos, &Scripts::cmdAnim,
		&Scripts::cmdSetFlag, &Scripts::cmdCheckFlag, &Scripts::cmdGoto,
		&Scripts::cmdAddScore, &Scripts::cmdSetInventory, &Scripts::cmdCheckInventory,
		&Scripts::cmdSetTex, &Scripts::cmdNewRoom, &Scripts::cmdConverse,
		&Scripts::cmdCheckFrame, &Scripts::cmdCheckAnim, &Scripts::cmdSnd,
		&Scripts::cmdRetNeg, &Scripts::cmdRetPos, &Scripts::cmdCheckLoc,
		&Scripts::cmdSetAnim, &Scripts::cmdDispInv, &Scripts::cmdSetAbout,
		&Scripts::cmdSetTimer, &Scripts::cmdCheckTimer, &Scripts::cmdSetTravel,
		&Scripts::cmdJumpGoto, &Scripts::cmdSetVideo, &Scripts::cmdPlayVideo,
		&Scripts::cmdPlotImage, &Scripts::cmdSetDisplay, &Scripts::cmdSetBuffer,
		&Scripts::cmdSetScroll, &Scripts::cmdSaveRect, &Scripts::cmdVideoEnded,
		&Scripts::cmdSetBufVid, &Scripts::cmdPlayBufVid, &Scripts::cmdRemoveLast,
		&Scripts::cmdDoTravel, &Scripts::cmdCheckAbout, &Scripts::cmdSpecial,
		&Scripts::cmdSetCycle, &Scripts::cmdCycle, &Scripts::cmdCharSpeak,
		&Scripts::cmdTexSpeak, &Scripts::cmdTexChoice, &Scripts::cmdWait,
		&Scripts::cmdSetConPos, &Scripts::cmdCheckVFrame, &Scripts::cmdJumpChoice,
		&Scripts::cmdReturnChoice, &Scripts::cmdClearBlock, &Scripts::cmdLoadSound,
		&Scripts::cmdFreeSound, &Scripts::cmdSetVideoSound, &Scripts::cmdPlayVideoSound,
		&Scripts::cmdPrintWatch, &Scripts::cmdDispAbout, &Scripts::cmdPushLocation,
		&Scripts::cmdCheckTravel, &Scripts::cmdBlock, &Scripts::cmdPlayerOff,
		&Scripts::cmdPlayerOn, &Scripts::cmdDead, &Scripts::cmdFadeOut,
		&Scripts::cmdEndVideo
	};

	(this->*COMMAND_LIST[commandIndex])();
}

void Scripts::cmdObject() {
	_vm->_bubbleBox->load(_data);
}

void Scripts::cmdEndObject() {
	printString(GENERAL_MESSAGES[_vm->_room->_selectCommand]);
}

void Scripts::cmdJumpLook() {
	if (_vm->_room->_selectCommand == 0)
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdJumpHelp() {
	if (_vm->_room->_selectCommand == 8)
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdJumpGet() {
	if (_vm->_room->_selectCommand == 3)
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdJumpMove() {
	if (_vm->_room->_selectCommand == 2)
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdJumpUse() {
	if (_vm->_room->_selectCommand == 4)
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdJumpTalk() {
	if (_vm->_room->_selectCommand == 6)
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdNull() {
}

#define PRINT_TIMER 25

void Scripts::cmdPrint() {
	// Get a text line for display
	Common::String msg = readString();
	printString(msg);
}

void Scripts::printString(const Common::String &msg) {
	_vm->_screen->_printOrg = Common::Point(20, 42);
	_vm->_screen->_printStart = Common::Point(20, 42);
	_vm->_timers[PRINT_TIMER]._timer = 50;
	_vm->_timers[PRINT_TIMER]._initTm = 50;
	++_vm->_timers[PRINT_TIMER]._flag;

	// Display the text in a bubble, and wait for a keypress or mouse click
	_vm->_bubbleBox->placeBubble(msg);
	_vm->_events->waitKeyMouse();

	// Wait until the bubble display is expired
	while (!_vm->shouldQuit() && _vm->_timers[PRINT_TIMER]._flag) {
		_vm->_events->pollEvents();
	}

	// Restore the original screen over the text bubble
	_vm->_screen->restoreBlock();
}

Common::String Scripts::readString() {
	Common::String msg;
	byte c;
	while ((c = (char)_data->readByte()) != '\0')
		msg += c;

	return msg;
}

void Scripts::cmdRetPos() {
	_endFlag = true;
	_returnCode = 0;
}

void Scripts::cmdAnim() {
	int animId = _data->readByte();
	_vm->_animation->animate(animId);
}

void Scripts::cmdSetFlag() {
	int flagNum = _data->readByte();
	byte flagVal = _data->readByte();
	assert(flagNum < 256);

	_vm->_flags[flagNum] = flagVal;
}

void Scripts::cmdCheckFlag() {
	int flagNum = _data->readUint16LE();
	int flagVal = _data->readUint16LE();
	assert(flagNum < 256);

	if (_vm->_flags[flagNum] == flagVal)
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdGoto() {
	_sequence = _data->readUint16LE();
	searchForSequence();
}

void Scripts::cmdAddScore() {
	if (!_vm->isDemo()) {
		cmdSetInventory();
		return;
	}

	_data->skip(1);
}

void Scripts::cmdSetInventory() {
	int itemId = _data->readByte();
	int itemVal = _data->readByte();

	(*_vm->_inventory)[itemId] = itemVal;
	_vm->_inventory->_startInvItem = 0;
	_vm->_inventory->_startInvBox = 0;
	_vm->_inventory->_invChangeFlag = true;
}

void Scripts::cmdCheckInventory() {
	int itemId = _data->readUint16LE();
	int itemVal = _data->readUint16LE();

	if ((*_vm->_inventory)[itemId] == itemVal)
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdSetTex() {
	_vm->_player->_playerDirection = RIGHT;
	int posX = _data->readSint16LE() - (_vm->_player->_playerOffset.x / 2);
	if (posX <= _vm->_player->_rawPlayer.x)
		_vm->_player->_playerDirection = LEFT;

	_vm->_player->_rawPlayer.x = posX;
	_vm->_player->checkScroll();
	bool scrlTemp = _vm->_player->_scrollFlag;

	_vm->_player->_playerDirection = UP;
	int posY = _data->readSint16LE();
	if (posY <= _vm->_player->_rawPlayer.y)
		_vm->_player->_playerDirection = DOWN;

	_vm->_player->_rawPlayer.y = posY;
	_vm->_player->_frame = 5;
	_vm->_player->checkScroll();

	_vm->_player->_scrollFlag |= scrlTemp;

	_vm->_player->_position = Common::Point(_vm->_player->_rawPlayer.x, _vm->_player->_rawPlayer.y - _vm->_player->_playerOffset.y);
	_vm->_player->_offsetY = _vm->_player->_playerOffset.y;
	_vm->_player->_spritesPtr = _vm->_player->_playerSprites;
	_vm->_player->_frameNumber = _vm->_player->_frame;

	_vm->_room->setWallCodes();
}

#define CURRENT_ROOM 0xFF

void Scripts::cmdNewRoom() {
	int roomNumber = _data->readByte();
	if (roomNumber != CURRENT_ROOM)
		_vm->_player->_roomNumber = roomNumber;

	_vm->_room->_function = FN_CLEAR1;
	_vm->freeChar();
	_vm->_converseMode = 0;
	cmdRetPos();
}

void Scripts::cmdConverse() {
	_vm->_conversation = _data->readUint16LE();
	_vm->_room->clearRoom();
	_vm->freeChar();
	_vm->_char->loadChar(_vm->_conversation);
	_vm->_events->setCursor(CURSOR_ARROW);

	_vm->_images.clear();
	_vm->_oldRects.clear();
	_sequence = 0;
	searchForSequence();

	if (_vm->_screen->_vesaMode) {
		_vm->_converseMode = 1;
	}
}

void Scripts::cmdCheckFrame() {
	int id = _data->readUint16LE();
	Animation *anim = _vm->_animation->findAnimation(id);

	int frame = _data->readUint16LE();
	if (anim->_frameNumber == frame)
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdCheckAnim() {
	int id = _data->readUint16LE();
	Animation *anim = _vm->_animation->findAnimation(id);

	if (anim->_currentLoopCount == -1)
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdSnd() {
	int id = _data->readByte();
	_vm->_sound->playSound(id);
}

void Scripts::cmdRetNeg() {
	_endFlag = true;
	_returnCode = -1;
}

void Scripts::cmdCheckLoc() {
	int minX = _data->readUint16LE();
	int minY = _data->readUint16LE();
	int maxX = _data->readUint16LE();
	int maxY = _data->readUint16LE();

	int curX = _vm->_player->_rawPlayer.x + _vm->_player->_playerOffset.x;
	int curY = _vm->_player->_rawPlayer.y;

	if ((curX >= minX) && (curX <= maxX) && (curY >= minY) && (curY <= maxY))
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdSetAnim() {
	int animId = _data->readByte();
	Animation *anim = _vm->_animation->setAnimation(animId);

	if (anim)
		_vm->_animation->setAnimTimer(anim);
}

void Scripts::cmdDispInv() {
	_vm->_inventory->newDisplayInv();
}

void Scripts::cmdSetAbout() {
	if (!_vm->isDemo()) {
		cmdSetTimer();
		return;
	}

	error("TODO: DEMO - cmdSetAbout");
}

void Scripts::cmdSetTimer() {
	int idx = _data->readUint16LE();
	int val = _data->readUint16LE();

	++_vm->_timers[idx]._flag;
	_vm->_timers[idx]._timer = val;
	_vm->_timers[idx]._initTm = val;

	_vm->_events->debounceLeft();
	_vm->_events->zeroKeys();
}

void Scripts::cmdCheckTimer() {
	int idx = _data->readUint16LE();

	_vm->_canSaveLoad = true;
	_vm->_events->pollEvents();
	_vm->_canSaveLoad = false;

	// Since the ScummVM debugger can be launched from the above point, we need
	// to check whether the script needs to be ended here, since some commands,
	// like the scene command, can change the current script
	if (_endFlag)
		return;

	if ((idx == 9) && _vm->_events->isKeyPending()) {
		_vm->_events->zeroKeys();
		_vm->_timers[9]._timer = 0;
		_vm->_timers[9]._flag = 0;
	}

	int val = _data->readUint16LE() & 0xFF;
	if (_vm->_timers[idx]._flag == val)
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdSetTravel() {
	if (!_vm->isDemo()) {
		cmdJumpGoto();
		return;
	}
	error("TODO: DEMO - cmdSetTravel");
}

void Scripts::cmdJumpGoto() {
	if (_vm->_room->_selectCommand == 5)
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdSetVideo() {
	Common::Point pt;
	pt.x = _data->readSint16LE();
	pt.y = _data->readSint16LE();
	int cellIndex = _data->readUint16LE();
	int rate = _data->readUint16LE();

	_vm->_video->setVideo(_vm->_screen, pt, _vm->_extraCells[cellIndex]._vid, rate);
}

void Scripts::cmdPlayVideo() {
	_vm->_video->playVideo();
}

void Scripts::cmdPlotImage() {
	_vm->_destIn = _vm->_current;

	int destX = _data->readUint16LE();
	int destY = _data->readUint16LE();
	int objId = _data->readUint16LE();
	int imgId = _data->readUint16LE();

	_vm->_screen->plotImage(_vm->_objectsTable[objId], imgId, Common::Point(destX, destY));
}

void Scripts::cmdSetDisplay() {
	_vm->_screen->setDisplayScan();
	_vm->_current = _vm->_screen;
}

void Scripts::cmdSetBuffer() {
	_vm->_current = &_vm->_buffer2;
}

void Scripts::cmdSetScroll() {
	_vm->_screen->_scrollCol = _data->readUint16LE();
	_vm->_screen->_scrollRow = _data->readUint16LE();
	_vm->_screen->_scrollX = 0;
	_vm->_screen->_scrollY = 0;
}

void Scripts::cmdSaveRect() {
	if (!_vm->isDemo()) {
		cmdVideoEnded();
		return;
	}
	error("TODO: DEMO - cmdSaveRect");
}

void Scripts::cmdVideoEnded() {
	_vm->_events->pollEventsAndWait();

	if (_vm->_video->_videoEnd) {
		cmdGoto();
	} else {
		_data->skip(2);
	}
}

void Scripts::cmdSetBufVid() {
	_vm->_vidX = _data->readUint16LE();
	_vm->_vidY = _data->readUint16LE();
	int idx = _data->readUint16LE();
	int rate = _data->readUint16LE();

	_vm->_video->setVideo(&_vm->_vidBuf, Common::Point(0, 0), FileIdent(_vm->_extraCells[idx]._vid._fileNum, _vm->_extraCells[idx]._vid._subfile), rate);
}

void Scripts::cmdPlayBufVid() {
	_vm->_video->playVideo();
	_vm->_video->copyVideo();
}

void Scripts::cmdRemoveLast() {
	--_vm->_numAnimTimers;
}

void Scripts::cmdDoTravel() {
	if (!_vm->isDemo()) {
		cmdSpecial();
		return;
	}
	error("TODO: DEMO - cmdDoTravel");
}

void Scripts::cmdCheckAbout() {
	if (!_vm->isDemo()) {
		cmdSpecial();
		return;
	}
	error("TODO: DEMO - cmdCheckAbout");
}

void Scripts::cmdSpecial() {
	_specialFunction = _data->readUint16LE();
	int p1 = _data->readUint16LE();
	int p2 = _data->readUint16LE();

	if (_specialFunction == 1) {
		if (_vm->_establishTable[p2] == 1)
			return;

		_vm->_screen->savePalette();
	}

	executeSpecial(_specialFunction, p1, p2);

	if (_specialFunction == 1) {
		_vm->_screen->restorePalette();
		_vm->_room->_function = FN_RELOAD;
	}
}

void Scripts::cmdSetCycle() {
	int startCycle = _data->readUint16LE();
	int endCycle = _data->readUint16LE();
	int timer = _data->readUint16LE();
	_vm->_screen->setPaletteCycle(startCycle, endCycle, timer);
}

void Scripts::cmdCycle() {
	if (_vm->_startup == -1)
		_vm->_screen->cyclePaletteForward();
}

void Scripts::cmdCharSpeak() {
	_vm->_screen->_printOrg = _charsOrg;
	_vm->_screen->_printStart = _charsOrg;

	byte v;
	Common::String tmpStr = "";
	while ((v = _data->readByte()) != 0)
		tmpStr += (char)v;

	_vm->_bubbleBox->placeBubble(tmpStr);
	findNull();
}

void Scripts::cmdTexSpeak() {
	_vm->_screen->_printOrg = _texsOrg;
	_vm->_screen->_printStart = _texsOrg;
	_vm->_screen->_maxChars = 20;

	byte v;
	Common::String tmpStr = "";
	while ((v = _data->readByte()) != 0)
		tmpStr += (char)v;

	_vm->_bubbleBox->_bubbleDisplStr = Common::String("JASON");
	_vm->_bubbleBox->placeBubble1(tmpStr);
	findNull();
}

#define BTN_COUNT 6
void Scripts::cmdTexChoice() {
	static const int BTN_RANGES[BTN_COUNT][2] = {
		{ 0, 76 }, { 77, 154 }, { 155, 232 }, { 233, 276 }, { 0, 0 },
		{ 277, 319 }
	};

	_vm->_oldRects.clear();
	_choiceStart = _data->pos() - 1;
	_vm->_fonts._charSet._lo = 1;
	_vm->_fonts._charSet._hi = 8;
	_vm->_fonts._charFor._lo = 55;
	_vm->_fonts._charFor._hi = 255;

	_vm->_screen->_maxChars = 20;
	_vm->_screen->_printOrg = _texsOrg;
	_vm->_screen->_printStart = _texsOrg;

	_vm->_bubbleBox->clearBubbles();
	_vm->_bubbleBox->_bubbleDisplStr = Common::String("RESPONSE 1");

	byte v;
	Common::String tmpStr = "";
	while ((v = _data->readByte()) != 0)
		tmpStr += (char)v;

	_vm->_bubbleBox->calcBubble(tmpStr);
	_vm->_bubbleBox->printBubble(tmpStr);

	Common::Array<Common::Rect> responseCoords;
	responseCoords.push_back(_vm->_bubbleBox->_bounds);
	_vm->_screen->_printOrg.y = _vm->_bubbleBox->_bounds.bottom + 11;

	findNull();

	tmpStr.clear();
	while ((v = _data->readByte()) != 0)
		tmpStr += (char)v;

	if (tmpStr.size() != 0) {
		_vm->_bubbleBox->_bubbleDisplStr = Common::String("RESPONSE 2");
		_vm->_bubbleBox->calcBubble(tmpStr);
		_vm->_bubbleBox->printBubble(tmpStr);
		responseCoords.push_back(_vm->_bubbleBox->_bounds);
		_vm->_screen->_printOrg.y = _vm->_bubbleBox->_bounds.bottom + 11;
	}

	findNull();

	bool choice3Fl = false;
	tmpStr.clear();
	while ((v = _data->readByte()) != 0)
		tmpStr += (char)v;

	if (tmpStr.size() != 0) {
		_vm->_bubbleBox->_bubbleDisplStr = Common::String("RESPONSE 3");
		_vm->_bubbleBox->calcBubble(tmpStr);
		_vm->_bubbleBox->printBubble(tmpStr);
		responseCoords.push_back(_vm->_bubbleBox->_bounds);
		_vm->_screen->_printOrg.y = _vm->_bubbleBox->_bounds.bottom + 11;
	}

	findNull();

	int choice = -1;
	do {
		_vm->_events->pollEvents();
		if (_vm->shouldQuit())
			return;

		charLoop();

		_vm->_bubbleBox->_bubbleDisplStr = _vm->_bubbleBox->_bubbleTitle;
		if (_vm->_events->_leftButton) {
			if (_vm->_events->_mouseRow >= 22) {
				_vm->_events->debounceLeft();
				int x = _vm->_events->_mousePos.x;
				for (int i = 0; i < BTN_COUNT; i++) {
					if ((x >= BTN_RANGES[i][0]) && (x < BTN_RANGES[i][1])) {
						choice = i;
						break;
					}
				}
			} else {
				_vm->_events->debounceLeft();
				choice = _vm->_events->checkMouseBox1(responseCoords);
			}
		}
	} while ((choice == -1) || ((choice == 2) && choice3Fl));

	_choice = choice + 1;
	_vm->_bubbleBox->clearBubbles();
}

void Scripts::cmdWait() {
	int time = _data->readSint16LE();
	_vm->_timers[3]._timer = time;
	_vm->_timers[3]._initTm = time;
	_vm->_timers[3]._flag++;
	_vm->_events->zeroKeys();

	while (!_vm->shouldQuit() && !_vm->_events->isKeyMousePressed() &&
			_vm->_timers[3]._flag) {
		_vm->_midi->midiRepeat();
		charLoop();

		_vm->_events->pollEventsAndWait();
	}

	_vm->_events->debounceLeft();
	_vm->_events->zeroKeys();
}

void Scripts::cmdSetConPos() {
	int x = _data->readSint16LE();
	int y = _data->readSint16LE();
	_charsOrg = Common::Point(x, y);

	x = _data->readSint16LE();
	y = _data->readSint16LE();
	_texsOrg = Common::Point(x, y);
}

void Scripts::cmdCheckVFrame() {
	if (_vm->_video->_videoFrame == _data->readSint16LE())
		cmdGoto();
	else
		_data->skip(2);
}

void Scripts::cmdJumpChoice() {
	int val = (_data->readUint16LE() & 0xFF);

	if (val == _choice) {
		_sequence = _data->readUint16LE();
		searchForSequence();
	} else
		_data->skip(2);
}

void Scripts::cmdReturnChoice() {
	_data->seek(_choiceStart);
}

void Scripts::cmdClearBlock() {
	_vm->_screen->restoreBlock();
}

void Scripts::cmdLoadSound() {
	int idx = _data->readSint16LE();

	_vm->_sound->_soundTable.clear();
	Resource *sound = _vm->_files->loadFile(_vm->_extraCells[idx]._vidSound);
	_vm->_sound->_soundTable.push_back(SoundEntry(sound, 1));
}

void Scripts::cmdFreeSound() {
	SoundManager &sound = *_vm->_sound;

	if (sound._soundTable.size() > 0 && sound._soundTable[0]._res) {
		// Keep doing char display loop if playing sound for it
		do {
			if (_vm->_flags[236] == 1)
				charLoop();

			_vm->_events->pollEvents();
		} while (!_vm->shouldQuit() && sound._playingSound);

		// Free the sounds
		while (sound._soundTable.size() > 0) {
			delete sound._soundTable[0]._res;
			sound._soundTable.remove_at(0);
		}
	}
}

void Scripts::cmdSetVideoSound() {
	uint32 startPos = _data->pos();
	_data->skip(4);
	cmdLoadSound();
	_data->seek(startPos);
	cmdSetVideo();

	_vm->_video->_soundFrame = _data->readUint16LE();
	_vm->_video->_soundFlag = false;
}

void Scripts::cmdPlayVideoSound() {
	_vm->_video->playVideo();
	if (_vm->_video->_soundFrame == _vm->_video->_videoFrame &&
			!_vm->_video->_soundFlag) {
		_vm->_sound->playSound(0);
		_vm->_video->_soundFlag = true;
	}

	_vm->_events->pollEventsAndWait();
}

void Scripts::cmdPrintWatch() {
	if (!_vm->isDemo()) {
		cmdPushLocation();
		return;
	}
	error("TODO: DEMO - cmdPrintWatch");
}

void Scripts::cmdDispAbout() {
	if (!_vm->isDemo()) {
		cmdPushLocation();
		return;
	}
	error("TODO: DEMO - cmdDispAbout");
}

void Scripts::cmdPushLocation() {
	error("TODO cmdPushLocation");
}

void Scripts::cmdCheckTravel() {
	if (!_vm->isDemo()) {
		cmdPushLocation();
		return;
	}
	error("TODO: DEMO - cmdCheckTravel");
}

void Scripts::cmdBlock() {
	if (!_vm->isDemo()) {
		cmdPushLocation();
		return;
	}
	error("TODO: DEMO - cmdBlock");
}

void Scripts::cmdPlayerOff() {
	_vm->_player->_playerOff = true;
}

void Scripts::cmdPlayerOn() {
	_vm->_player->_playerOff = false;
}

void Scripts::cmdDead() {
	int deathId = _data->readByte();
	_vm->dead(deathId);
}

void Scripts::cmdFadeOut() {
	_vm->_screen->forceFadeOut();
}

void Scripts::cmdEndVideo() {
	_vm->_video->closeVideo();
	_vm->_video->_videoEnd = true;
}

} // End of namespace Access