NEVERHOOD: Move module files to own subdirectory

1 files changed, 650 insertions, 0 deletions

diff --git a/engines/neverhood/modules/module1900.cpp b/engines/neverhood/modules/module1900.cpp
new file mode 100644
index 0000000000..1a9ffa127b
--- /dev/null
+++ b/engines/neverhood/modules/module1900.cpp
@@ -0,0 +1,650 @@
+/* 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 "neverhood/modules/module1900.h"
+#include "neverhood/gamemodule.h"
+
+namespace Neverhood {
+
+static const uint32 kModule1900SoundList[] = {
+	0xB4005E60,
+	0x91835066,
+	0x90E14440,
+	0
+};
+
+Module1900::Module1900(NeverhoodEngine *vm, Module *parentModule, int which)
+	: Module(vm, parentModule) {
+
+	// NOTE: The original has a Scene1908 here as well but it's not used here but in another module... 
+	
+	if (which < 0)
+		createScene(_vm->gameState().sceneNum, -1);
+	else
+		createScene(0, 0);
+
+	_vm->_soundMan->addSoundList(0x04E1C09C, kModule1900SoundList);
+	_vm->_soundMan->setSoundListParams(kModule1900SoundList, true, 50, 600, 5, 150);
+
+}
+
+Module1900::~Module1900() {
+	_vm->_soundMan->deleteGroup(0x04E1C09C);
+}
+
+void Module1900::createScene(int sceneNum, int which) {
+	debug("Module1900::createScene(%d, %d)", sceneNum, which);
+	_sceneNum = sceneNum;
+	switch (_sceneNum) {
+	case 0:
+		_vm->gameState().sceneNum = 0;
+		_childObject = new Scene1901(_vm, this, which);
+		break;
+	case 6:
+		_vm->gameState().sceneNum = 6;
+		_childObject = new Scene1907(_vm, this);
+		break;
+	}
+	SetUpdateHandler(&Module1900::updateScene);
+	_childObject->handleUpdate();
+}
+
+void Module1900::updateScene() {
+	if (!updateChild()) {
+		switch (_sceneNum) {
+		case 0:
+			if (_moduleResult == 1)
+				createScene(6, 0);
+			else
+				leaveModule(0);
+			break;
+		case 6:
+			createScene(0, 1);
+			break;
+		}
+	}
+}
+
+// Scene1901
+
+Scene1901::Scene1901(NeverhoodEngine *vm, Module *parentModule, int which)
+	: Scene(vm, parentModule) {
+	
+	Sprite *tempSprite;
+
+	setRectList(0x004B34C8);
+
+	setBackground(0x01303227);
+	setPalette(0x01303227);
+	insertScreenMouse(0x0322301B);
+
+	insertStaticSprite(0x42213133, 1100);
+	
+	if (!getGlobalVar(V_STAIRS_PUZZLE_SOLVED))
+		insertStaticSprite(0x40A40168, 100);
+	else if (getGlobalVar(V_STAIRS_DOWN)) {
+		insertStaticSprite(0x124404C4, 100);
+		setGlobalVar(V_STAIRS_DOWN_ONCE, 1);
+	} else
+		insertStaticSprite(0x02840064, 100);
+
+	if (which < 0) {
+		// Restoring game
+		insertKlaymen<KmScene1901>(120, 380);
+		setMessageList(0x004B3408);
+	} else if (which == 1) {
+		// Klaymen returning from the puzzle
+		insertKlaymen<KmScene1901>(372, 380);
+		setMessageList(0x004B3410);
+	} else {
+		// Klaymen entering from the left
+		insertKlaymen<KmScene1901>(0, 380);
+		setMessageList(0x004B3400);
+	}
+
+	tempSprite = insertStaticSprite(0x4830A402, 1100);
+	_klaymen->setClipRect(tempSprite->getDrawRect().x, 0, 640, 480);
+
+}
+
+static const NPoint kAsScene1907SymbolGroundPositions[] = {
+	{160, 310}, { 90, 340}, {210, 335},
+	{210, 380}, {310, 340}, {290, 400},
+	{400, 375}, {370, 435}, {475, 415}
+};
+
+static const NPoint kAsScene1907SymbolPluggedInPositions[] = { 
+	{275, 125}, {244, 125}, {238, 131},
+	{221, 135}, {199, 136}, {168, 149},
+	{145, 152}, {123, 154}, {103, 157}
+};
+
+static const NPoint kAsScene1907SymbolGroundHitPositions[] = {
+	{275, 299}, {244, 299}, {238, 305}, 
+	{221, 309}, {199, 310}, {168, 323}, 
+	{145, 326}, {123, 328}, {103, 331} 
+};
+
+static const NPoint kAsScene1907SymbolPluggedInDownPositions[] = {
+	{275, 136}, {244, 156}, {238, 183},
+	{221, 207}, {199, 228}, {168, 262},
+	{145, 285}, {123, 307}, {103, 331}
+};
+
+static const uint32 kAsScene1907SymbolFileHashes[] = {
+	0x006A1034, 0x006A1010, 0x006A1814,
+	0x006A1016, 0x006A0014, 0x002A1014,
+	0x00EA1014, 0x206A1014, 0x046A1414
+};
+
+bool AsScene1907Symbol::_plugInFailed = false;
+int AsScene1907Symbol::_plugInTryCount = 0;
+
+AsScene1907Symbol::AsScene1907Symbol(NeverhoodEngine *vm, Scene1907 *parentScene, int elementIndex, int positionIndex)
+	: AnimatedSprite(vm, 1000 - positionIndex), _parentScene(parentScene), _elementIndex(elementIndex), _isMoving(false) {
+
+	_plugInFailed = false;
+	_plugInTryCount = 0;
+	
+	if (getGlobalVar(V_STAIRS_PUZZLE_SOLVED)) {
+		_isPluggedIn = true;
+		_currPositionIndex = elementIndex;
+		if (!getGlobalVar(V_STAIRS_DOWN)) {
+			_x = kAsScene1907SymbolPluggedInPositions[_currPositionIndex].x;
+			_y = kAsScene1907SymbolPluggedInPositions[_currPositionIndex].y;
+		} else {
+			_x = kAsScene1907SymbolPluggedInDownPositions[_currPositionIndex].x;
+			_y = kAsScene1907SymbolPluggedInDownPositions[_currPositionIndex].y;
+		}
+		createSurface1(kAsScene1907SymbolFileHashes[_elementIndex], 1000 + _currPositionIndex);
+		startAnimation(kAsScene1907SymbolFileHashes[_elementIndex], -1, -1);
+		_newStickFrameIndex = STICK_LAST_FRAME;
+	} else {
+		_isPluggedIn = false;
+		_currPositionIndex = positionIndex;
+		loadSound(0, 0x74231924);
+		loadSound(1, 0x36691914);
+		loadSound(2, 0x5421D806);
+		_parentScene->setPositionFree(_currPositionIndex, false);
+		_x = kAsScene1907SymbolGroundPositions[_currPositionIndex].x;
+		_y = kAsScene1907SymbolGroundPositions[_currPositionIndex].y;
+		createSurface1(kAsScene1907SymbolFileHashes[_elementIndex], 1000 + _currPositionIndex);
+		startAnimation(kAsScene1907SymbolFileHashes[_elementIndex], 0, -1);
+		_newStickFrameIndex = 0;
+	}
+	_collisionBoundsOffset.set(0, 0, 80, 80);
+	Sprite::updateBounds();
+	SetUpdateHandler(&AnimatedSprite::update);
+	SetMessageHandler(&AsScene1907Symbol::handleMessage);
+
+}
+
+void AsScene1907Symbol::update() {
+	updateAnim();
+	handleSpriteUpdate();
+	updatePosition();
+	if (_plugInFailed && _plugInTryCount == 0)
+		_plugInFailed = false;
+}
+
+uint32 AsScene1907Symbol::handleMessage(int messageNum, const MessageParam &param, Entity *sender) {
+	uint32 messageResult = Sprite::handleMessage(messageNum, param, sender);
+	switch (messageNum) {
+	case 0x1011:
+		if (!_isPluggedIn && !_plugInFailed) {
+			tryToPlugIn();
+			messageResult = 1;
+		} else
+			messageResult = 0;
+		break;
+	}
+	return messageResult;
+}
+
+uint32 AsScene1907Symbol::hmTryToPlugIn(int messageNum, const MessageParam &param, Entity *sender) {
+	uint32 messageResult = Sprite::handleMessage(messageNum, param, sender);
+	switch (messageNum) {
+	case 0x3002:
+		gotoNextState();
+		break;
+	}
+	return messageResult;
+}
+
+void AsScene1907Symbol::suTryToPlugIn() {
+	_currStep++;
+	_x -= _deltaX;
+	_y -= _deltaY;
+	if (_currStep == 16) {
+		_x -= _smallDeltaX;
+		_y -= _smallDeltaY;
+		SetSpriteUpdate(NULL);
+	}
+}
+
+void AsScene1907Symbol::suFallOff() {
+	if (_fallOffDelay != 0) {
+		_fallOffDelay--;
+	} else {
+		_y += _yAccel;
+		_yAccel += 8;
+		if (_y >= kAsScene1907SymbolGroundHitPositions[_currPositionIndex].y) {
+			_y = kAsScene1907SymbolGroundHitPositions[_currPositionIndex].y;
+			stFallOffHitGround();
+		}
+	}
+}
+
+void AsScene1907Symbol::suFallOffHitGround() {
+
+	if (_x == _someX - _xBreak)
+		_x -= _smallDeltaX;
+	else
+		_x -= _deltaX;
+
+	if (_y == kAsScene1907SymbolGroundHitPositions[_currPositionIndex].y) {
+		_y -= _someY;
+	}
+
+	if (_currStep < 8) {
+		_y -= _yAccel;
+		_yAccel -= 4;
+		if (_yAccel < 0)
+			_yAccel = 0;
+	} else if (_currStep < 15) {
+		_y += _yAccel;
+		_yAccel += 4;
+	} else {
+		_y = kAsScene1907SymbolGroundPositions[_newPositionIndex].y;
+		cbFallOffHitGroundEvent();
+	}
+
+	_currStep++;
+}
+
+void AsScene1907Symbol::suMoveDown() {
+	_y += _yIncr;
+	if (_yIncr < 11)
+		_yIncr++;
+	if (_y >= kAsScene1907SymbolPluggedInDownPositions[_elementIndex].y) {
+		_y = kAsScene1907SymbolPluggedInDownPositions[_elementIndex].y;
+		_isMoving = false;
+		SetSpriteUpdate(NULL);
+	}	
+}
+
+void AsScene1907Symbol::suMoveUp() {
+	_y -= _yIncr;
+	if (getGlobalVar(V_WALL_BROKEN)) {
+		if (_y - (9 + (_elementIndex > 5 ? 31 : 0)) < kAsScene1907SymbolPluggedInPositions[_elementIndex].y)
+			_yIncr--;
+		else
+			_yIncr++;
+	} else
+		_yIncr = 2;
+	if (_yIncr > 9)
+		_yIncr = 9;
+	else if (_yIncr < 1)
+		_yIncr = 1;
+	if (_y < kAsScene1907SymbolPluggedInPositions[_elementIndex].y) {
+		_y = kAsScene1907SymbolPluggedInPositions[_elementIndex].y;
+		_isMoving = false;
+		SetSpriteUpdate(NULL);
+	}
+}
+
+void AsScene1907Symbol::tryToPlugIn() {
+	_isPluggedIn = true;
+	_plugInTryCount++;
+	_newPositionIndex = _parentScene->getNextPosition();
+	_parentScene->setPositionFree(_currPositionIndex, true);
+	sendMessage(_parentScene, 0x1022, 1100 + _newPositionIndex);
+	startAnimation(kAsScene1907SymbolFileHashes[_elementIndex], 0, -1);
+	SetUpdateHandler(&AsScene1907Symbol::update);
+	SetMessageHandler(&AsScene1907Symbol::hmTryToPlugIn);
+	SetSpriteUpdate(&AsScene1907Symbol::suTryToPlugIn);
+	_currStep = 0;
+	_deltaX = (_x - kAsScene1907SymbolPluggedInPositions[_newPositionIndex].x) / 16;
+	_smallDeltaX = _x - _deltaX * 16 - kAsScene1907SymbolPluggedInPositions[_newPositionIndex].x;
+	_deltaY = (_y - kAsScene1907SymbolPluggedInPositions[_newPositionIndex].y) / 16;
+	_smallDeltaY = _y - _deltaY * 16 - kAsScene1907SymbolPluggedInPositions[_newPositionIndex].y;
+	if (_elementIndex == _newPositionIndex) {
+		NextState(&AsScene1907Symbol::stPlugIn);
+	} else {
+		_plugInFailed = true;
+		NextState(&AsScene1907Symbol::stPlugInFail);
+	}
+}
+
+void AsScene1907Symbol::fallOff(int newPositionIndex, int fallOffDelay) {
+	_isPluggedIn = false;
+	_newPositionIndex = newPositionIndex;
+	_fallOffDelay = fallOffDelay;
+	_parentScene->setPositionFree(_newPositionIndex, false);
+	_x = kAsScene1907SymbolPluggedInPositions[_currPositionIndex].x;
+	_y = kAsScene1907SymbolPluggedInPositions[_currPositionIndex].y;
+	_someX = _x;
+	_someY = _y;
+	startAnimation(kAsScene1907SymbolFileHashes[_elementIndex], -1, 0);
+	_playBackwards = true;
+	_newStickFrameIndex = STICK_LAST_FRAME;
+	_currStep = 0;
+	_yAccel = 1;
+	SetUpdateHandler(&AsScene1907Symbol::update);
+	SetMessageHandler(&AsScene1907Symbol::handleMessage);
+	SetSpriteUpdate(&AsScene1907Symbol::suFallOff);
+}
+
+void AsScene1907Symbol::stFallOffHitGround() {
+	playSound(1);
+	sendMessage(_parentScene, 0x1022, 1000 + _newPositionIndex);
+	Entity::_priority = 1000 - _newPositionIndex;
+	_parentScene->removeCollisionSprite(this);
+	_parentScene->addCollisionSprite(this);
+	SetSpriteUpdate(&AsScene1907Symbol::suFallOffHitGround);
+	NextState(&AsScene1907Symbol::cbFallOffHitGroundEvent);
+	_newStickFrameIndex = 0;
+	_currStep = 0;
+	_yAccel = 30;
+	_deltaX = (_x - kAsScene1907SymbolGroundPositions[_newPositionIndex].x) / 15;
+	_xBreak = _deltaX * 15;
+	_smallDeltaX = _x - kAsScene1907SymbolGroundPositions[_newPositionIndex].x - _xBreak;
+	_someY = 0;
+	if (kAsScene1907SymbolGroundHitPositions[_currPositionIndex].y > kAsScene1907SymbolGroundPositions[_newPositionIndex].y)
+		_someY = kAsScene1907SymbolGroundHitPositions[_currPositionIndex].y - kAsScene1907SymbolGroundPositions[_newPositionIndex].y;
+}
+
+void AsScene1907Symbol::cbFallOffHitGroundEvent() {
+	_currPositionIndex = _newPositionIndex;
+	if (_plugInTryCount > 0)
+		_plugInTryCount--;
+	startAnimation(kAsScene1907SymbolFileHashes[_elementIndex], 0, -1);
+	_newStickFrameIndex = 0;
+	SetUpdateHandler(&AnimatedSprite::update);
+	SetMessageHandler(&AsScene1907Symbol::handleMessage);
+	SetSpriteUpdate(NULL);
+	updateBounds();
+	playSound(2);
+}
+
+void AsScene1907Symbol::stPlugIn() {
+	playSound(0);
+	_currPositionIndex = _newPositionIndex;
+	stopAnimation();
+	SetMessageHandler(&AsScene1907Symbol::handleMessage);
+	SetSpriteUpdate(NULL);
+	if (_elementIndex == 8)
+		sendMessage(_parentScene, 0x2001, 0);
+}
+
+void AsScene1907Symbol::stPlugInFail() {
+	_currPositionIndex = _newPositionIndex;
+	stopAnimation();
+	_parentScene->plugInFailed();
+}
+
+void AsScene1907Symbol::moveUp() {
+	startAnimation(kAsScene1907SymbolFileHashes[_elementIndex], -1, -1);
+	stopAnimation();
+	SetMessageHandler(&AsScene1907Symbol::handleMessage);
+	SetSpriteUpdate(&AsScene1907Symbol::suMoveUp);
+	_yIncr = 1;
+	_isMoving = true;
+}
+
+void AsScene1907Symbol::moveDown() {
+	startAnimation(kAsScene1907SymbolFileHashes[_elementIndex], -1, -1);
+	stopAnimation();
+	SetMessageHandler(&AsScene1907Symbol::handleMessage);
+	SetSpriteUpdate(&AsScene1907Symbol::suMoveDown);
+	_yIncr = 4;
+	_isMoving = true;
+}
+
+SsScene1907UpDownButton::SsScene1907UpDownButton(NeverhoodEngine *vm, Scene1907 *parentScene, AsScene1907Symbol *asScene1907Symbol)
+	: StaticSprite(vm, 1400), _parentScene(parentScene), _asScene1907Symbol(asScene1907Symbol),
+	_countdown1(0) {
+	
+	loadSprite(0x64516424, kSLFDefDrawOffset | kSLFDefPosition | kSLFDefCollisionBoundsOffset, 1400);
+	setVisible(false);
+	loadSound(0, 0x44061000);
+	SetUpdateHandler(&SsScene1907UpDownButton::update);
+	SetMessageHandler(&SsScene1907UpDownButton::handleMessage);
+	if (getGlobalVar(V_STAIRS_PUZZLE_SOLVED)) {
+		if (getGlobalVar(V_STAIRS_DOWN))
+			setToDownPosition();
+		else
+			setToUpPosition();
+	}
+}
+
+void SsScene1907UpDownButton::update() {
+	updatePosition();
+	if (_countdown1 != 0 && (--_countdown1 == 0)) {
+		setVisible(false);
+		sendMessage(_parentScene, 0x2000, 0);
+	}
+}
+
+uint32 SsScene1907UpDownButton::handleMessage(int messageNum, const MessageParam &param, Entity *sender) {
+	uint32 messageResult = Sprite::handleMessage(messageNum, param, sender);
+	switch (messageNum) {
+	case 0x1011:
+		if (_countdown1 == 0 && !_asScene1907Symbol->isMoving() && getGlobalVar(V_STAIRS_PUZZLE_SOLVED)) {
+			setVisible(true);
+			_countdown1 = 4;
+			updatePosition();
+			playSound(0);
+		}
+		messageResult = 1;
+	}
+	return messageResult;
+}
+
+void SsScene1907UpDownButton::setToUpPosition() {
+	_y = _spriteResource.getPosition().y;
+	updateBounds();
+	updatePosition();
+}
+
+void SsScene1907UpDownButton::setToDownPosition() {
+	_y = _spriteResource.getPosition().y + 174;
+	updateBounds();
+	updatePosition();
+}
+
+AsScene1907WaterHint::AsScene1907WaterHint(NeverhoodEngine *vm)
+	: AnimatedSprite(vm, 1400) {
+	
+	createSurface1(0x110A1061, 1500);
+	_x = 320;
+	_y = 240;
+	startAnimation(0x110A1061, 0, -1);
+	_newStickFrameIndex = 0;
+	setVisible(false);
+	_needRefresh = true;
+	AnimatedSprite::updatePosition();
+	SetUpdateHandler(&AsScene1907WaterHint::update);
+	SetMessageHandler(&Sprite::handleMessage);
+}
+
+void AsScene1907WaterHint::update() {
+	updateAnim();
+	updatePosition();
+}
+
+uint32 AsScene1907WaterHint::hmShowing(int messageNum, const MessageParam &param, Entity *sender) {
+	uint32 messageResult = Sprite::handleMessage(messageNum, param, sender);
+	switch (messageNum) {
+	case 0x3002:
+		gotoNextState();
+		break;
+	}
+	return messageResult;
+}
+
+void AsScene1907WaterHint::show() {
+	setVisible(true);
+	startAnimation(0x110A1061, 0, -1);
+	SetMessageHandler(&AsScene1907WaterHint::hmShowing);
+	NextState(&AsScene1907WaterHint::hide);
+}
+
+void AsScene1907WaterHint::hide() {
+	stopAnimation();
+	setVisible(false);
+	SetMessageHandler(&Sprite::handleMessage);
+}
+
+Scene1907::Scene1907(NeverhoodEngine *vm, Module *parentModule)	
+	: Scene(vm, parentModule), _currMovingSymbolIndex(0), _pluggedInCount(0), 
+	_moveDownCountdown(0), _moveUpCountdown(0), _countdown3(0), _hasPlugInFailed(false) {
+	
+	setBackground(0x20628E05);
+	setPalette(0x20628E05);
+
+	for (int i = 0; i < 9; i++)
+		_positionFree[i] = true;
+
+	for (int i = 0; i < 9; i++) {
+		_asSymbols[i] = insertSprite<AsScene1907Symbol>(this, i, getRandomPositionIndex());
+		addCollisionSprite(_asSymbols[i]);
+	}
+	
+	_ssUpDownButton = insertSprite<SsScene1907UpDownButton>(this, _asSymbols[8]);
+	addCollisionSprite(_ssUpDownButton);
+
+	_asWaterHint = insertSprite<AsScene1907WaterHint>();
+	
+	insertPuzzleMouse(0x28E0120E, 20, 620);
+
+	SetMessageHandler(&Scene1907::handleMessage);
+	SetUpdateHandler(&Scene1907::update);
+
+	if (getGlobalVar(V_STAIRS_PUZZLE_SOLVED))
+		_pluggedInCount = 9;
+		
+	loadSound(0, 0x72004A10);
+	loadSound(1, 0x22082A12);
+	loadSound(2, 0x21100A10);
+	loadSound(3, 0x68E25540);
+
+}
+
+void Scene1907::update() {
+	Scene::update();
+	
+	if (_hasPlugInFailed) {
+		int fallOffDelay = 0;
+		_hasPlugInFailed = false;
+		for (int i = 0; i < 9; i++) {
+			AsScene1907Symbol *asSymbol = _asSymbols[8 - i];
+			if (asSymbol->isPluggedIn()) {
+				asSymbol->fallOff(getRandomPositionIndex(), fallOffDelay);
+				fallOffDelay += _vm->_rnd->getRandomNumber(10 - 1) + 4;
+			}
+		}
+	}
+
+	if (_moveDownCountdown != 0 && (--_moveDownCountdown == 0)) {
+		_asSymbols[_currMovingSymbolIndex]->moveDown();
+		if (_currMovingSymbolIndex > 0) {
+			_moveDownCountdown = 2;
+			_currMovingSymbolIndex--;
+		}
+	}
+
+	if (_moveUpCountdown != 0 && (--_moveUpCountdown == 0)) {
+		_moveDownCountdown = 0;
+		for (int i = 0; i < 9; i++)
+			_asSymbols[i]->moveUp();
+	}
+
+	if (_countdown3 != 0 && (--_countdown3 == 0)) {
+		_asWaterHint->show();
+		_moveUpCountdown = 4;
+	}
+
+}
+
+uint32 Scene1907::handleMessage(int messageNum, const MessageParam &param, Entity *sender) {
+	Scene::handleMessage(messageNum, param, sender);
+	switch (messageNum) {
+	case 0x0001:
+		if ((param.asPoint().x <= 20 || param.asPoint().x >= 620) &&
+			!_hasPlugInFailed && _moveDownCountdown == 0 && _moveUpCountdown == 0 && _countdown3 == 0) {
+			leaveScene(0);
+		}
+		break;
+	case 0x2000:
+		if (getGlobalVar(V_STAIRS_DOWN)) {
+			playSound(0);
+			for (int i = 0; i < 9; i++)
+				_asSymbols[i]->moveUp();
+			_ssUpDownButton->setToUpPosition();
+			setGlobalVar(V_STAIRS_DOWN, 0);
+		} else {
+			if (!getGlobalVar(V_WALL_BROKEN)) {
+				playSound(2);
+				_countdown3 = 5;
+			} else {
+				playSound(1);
+				_ssUpDownButton->setToDownPosition();
+				setGlobalVar(V_STAIRS_DOWN, 1);
+			}
+			_moveDownCountdown = 1;
+			_currMovingSymbolIndex = 8;
+		}
+		break;
+	case 0x2001:
+		playSound(3);
+		setGlobalVar(V_STAIRS_PUZZLE_SOLVED, 1);
+		break;
+	}	
+	return 0;
+}
+
+void Scene1907::plugInFailed() {
+	_pluggedInCount = 0;
+	_hasPlugInFailed = true;
+}
+
+int Scene1907::getRandomPositionIndex() {
+	bool found = false;
+	int index = 0;
+	// Check if any position is free
+	for (int i = 0; i < 9; i++)
+		if (_positionFree[i])
+			found = true;
+	if (found) {
+		// Get a random free position
+		found = false;
+		while (!found) {
+			index = _vm->_rnd->getRandomNumber(9 - 1);
+			if (_positionFree[index])
+				found = true;
+		}
+	}
+	return index;
+}
+
+} // End of namespace Neverhood