GNAP: Refactor scene 50

5 files changed, 274 insertions, 207 deletions

diff --git a/engines/gnap/gnap.cpp b/engines/gnap/gnap.cpp
index 2ef75164ba..5d4e8106ab 100644
--- a/engines/gnap/gnap.cpp
+++ b/engines/gnap/gnap.cpp
@@ -2021,15 +2021,6 @@ void GnapEngine::initGlobalSceneVars() {
 	// Shared by scenes 17 && 18
 	_s18_garbageCanPos = 8;
 
-	// Scene 50
-	_s50_timesPlayed = 0;
-	_s50_timesPlayedModifier = 0;
-	_s50_attackCounter = 0;
-	_s50_leftTongueEnergyBarPos = 10;
-	_s50_leftTongueNextIdCtr = 0;
-	_s50_rightTongueEnergyBarPos = 10;
-	_s50_rightTongueNextIdCtr = 0;
-
 	// Scene 52
 	_s52_gameScore = 0;
 	_s52_aliensInitialized = false;
diff --git a/engines/gnap/gnap.h b/engines/gnap/gnap.h
index 5063d90808..bd1714dbbe 100644
--- a/engines/gnap/gnap.h
+++ b/engines/gnap/gnap.h
@@ -601,39 +601,6 @@ public:
 	bool toyUfoCheckTimer();
 	void toyUfoFlyTo(int destX, int destY, int minX, int maxX, int minY, int maxY, int animationIndex);
 
-	// Scene 50
-	bool _s50_fightDone;
-	int _s50_timesPlayed, _s50_timesPlayedModifier;
-	int _s50_attackCounter;
-	int _s50_roundNum, _s50_timeRemaining;
-	int _s50_leftTongueRoundsWon, _s50_rightTongueRoundsWon;
-	int _s50_leftTongueEnergyBarPos, _s50_rightTongueEnergyBarPos;
-	int _s50_leftTongueSequenceId, _s50_leftTongueId;
-	int _s50_leftTongueNextSequenceId, _s50_leftTongueNextId, _s50_leftTongueNextIdCtr;
-	int _s50_rightTongueSequenceId, _s50_rightTongueId;
-	int _s50_rightTongueNextSequenceId, _s50_rightTongueNextId, _s50_rightTongueNextIdCtr;
-	int _s50_leftTongueEnergy, _s50_rightTongueEnergy;
-	int scene50_init();
-	void scene50_updateHotspots();
-	bool scene50_tongueWinsRound(int tongueNum);
-	void scene50_playWinAnim(int tongueNum, bool fightOver);
-	void scene50_delayTicks();
-	void scene50_initRound();
-	bool scene50_updateCountdown();
-	void scene50_drawCountdown(int value);
-	void scene50_playTonguesIdle();
-	void scene50_playRoundAnim(int roundNum);
-	bool scene50_updateEnergyBars(int newLeftBarPos, int newRightBarPos);
-	void scene50_waitForAnim(int animationIndex);
-	int scene50_checkInput();
-	int scene50_getRightTongueAction();
-	void scene50_updateAnimations();
-	int scene50_getRightTongueActionTicks();
-	int scene50_getLeftTongueNextId();
-	int scene50_getRightTongueNextId();
-	void scene50_playWinBadgeAnim(int tongueNum);
-	void scene50_run();
-	
 	// Scene 51
 	int _s51_cashAmount;
 	int _s51_digits[4];
diff --git a/engines/gnap/scenes/scene50.cpp b/engines/gnap/scenes/scene50.cpp
index 2ec842af7a..68f29f3d78 100644
--- a/engines/gnap/scenes/scene50.cpp
+++ b/engines/gnap/scenes/scene50.cpp
@@ -23,128 +23,156 @@
 #include "gnap/gnap.h"
 #include "gnap/gamesys.h"
 #include "gnap/resource.h"
+#include "gnap/scenes/scene50.h"
 
 namespace Gnap {
 
-int GnapEngine::scene50_init() {
+Scene50::Scene50(GnapEngine *vm) : Scene(vm) {
+	_s50_fightDone = false;
+
+	_s50_roundNum = -1;
+	_s50_timeRemaining = -1;
+	_s50_leftTongueRoundsWon = -1;
+	_s50_rightTongueRoundsWon = -1;
+	_s50_leftTongueSequenceId = -1;
+	_s50_leftTongueId = -1;
+	_s50_leftTongueNextSequenceId = -1;
+	_s50_leftTongueNextId = -1;
+	_s50_rightTongueSequenceId = -1;
+	_s50_rightTongueId = -1;
+	_s50_rightTongueNextSequenceId = -1;
+	_s50_rightTongueNextId = -1;
+	_s50_leftTongueEnergy = -1;
+	_s50_rightTongueEnergy = -1;
+
+	_s50_timesPlayed = 0;
+	_s50_timesPlayedModifier = 0;
+	_s50_attackCounter = 0;
+	_s50_leftTongueEnergyBarPos = 10;
+	_s50_leftTongueNextIdCtr = 0;
+	_s50_rightTongueEnergyBarPos = 10;
+	_s50_rightTongueNextIdCtr = 0;
+}
+
+int Scene50::init() {
 	return 0xC7;
 }
 
-void GnapEngine::scene50_updateHotspots() {
-	_hotspotsCount = 0;
+void Scene50::updateHotspots() {
+	_vm->_hotspotsCount = 0;
 }
 
-bool GnapEngine::scene50_tongueWinsRound(int tongueNum) {
+bool Scene50::tongueWinsRound(int tongueNum) {
 	if (tongueNum == 1)
 		++_s50_leftTongueRoundsWon;
 	else
 		++_s50_rightTongueRoundsWon;
-	scene50_playWinBadgeAnim(tongueNum);
+	playWinBadgeAnim(tongueNum);
 	bool fightOver = _s50_rightTongueRoundsWon == 2 || _s50_leftTongueRoundsWon == 2;
-	scene50_playWinAnim(tongueNum, fightOver);
+	playWinAnim(tongueNum, fightOver);
 	return fightOver;
 }
 
-void GnapEngine::scene50_playWinAnim(int tongueNum, bool fightOver) {
+void Scene50::playWinAnim(int tongueNum, bool fightOver) {
 	if (tongueNum == 1) {
 		if (fightOver) {
-			_gameSys->insertSequence(0xAD, 140, 0xAC, 140, kSeqSyncWait, 0, 0, 0);
-			_gameSys->insertSequence(0xB4, 100, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
-			_gameSys->insertSequence(0xBD, 100, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncWait, 0, 0, 0);
-			_gameSys->insertSequence(0xBC, 100, 0xBD, 100, kSeqSyncWait, 0, 0, 0);
+			_vm->_gameSys->insertSequence(0xAD, 140, 0xAC, 140, kSeqSyncWait, 0, 0, 0);
+			_vm->_gameSys->insertSequence(0xB4, 100, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
+			_vm->_gameSys->insertSequence(0xBD, 100, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncWait, 0, 0, 0);
+			_vm->_gameSys->insertSequence(0xBC, 100, 0xBD, 100, kSeqSyncWait, 0, 0, 0);
 			_s50_leftTongueSequenceId = 0xB4;
 			_s50_rightTongueSequenceId = 0xBC;
 			_s50_rightTongueId = 100;
 			_s50_leftTongueId = 100;
-			_gameSys->setAnimation(0xB4, 100, 6);
-			_gameSys->setAnimation(_s50_rightTongueSequenceId, 100, 5);
-			scene50_waitForAnim(6);
-			scene50_waitForAnim(5);
-			invAdd(kItemGum);
-			setFlag(kGFUnk13);
+			_vm->_gameSys->setAnimation(0xB4, 100, 6);
+			_vm->_gameSys->setAnimation(_s50_rightTongueSequenceId, 100, 5);
+			waitForAnim(6);
+			waitForAnim(5);
+			_vm->invAdd(kItemGum);
+			_vm->setFlag(kGFUnk13);
 		} else {
-			_gameSys->insertSequence(0xB4, 100, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
-			_gameSys->insertSequence(0xBD, 100, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncWait, 0, 0, 0);
-			_gameSys->insertSequence(0xBC, 100, 0xBD, 100, kSeqSyncWait, 0, 0, 0);
+			_vm->_gameSys->insertSequence(0xB4, 100, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
+			_vm->_gameSys->insertSequence(0xBD, 100, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncWait, 0, 0, 0);
+			_vm->_gameSys->insertSequence(0xBC, 100, 0xBD, 100, kSeqSyncWait, 0, 0, 0);
 			_s50_leftTongueSequenceId = 0xB4;
 			_s50_rightTongueSequenceId = 0xBC;
 			_s50_rightTongueId = 100;
 			_s50_leftTongueId = 100;
-			_gameSys->setAnimation(0xB4, 100, 6);
-			_gameSys->setAnimation(_s50_rightTongueSequenceId, 100, 5);
-			scene50_waitForAnim(6);
-			scene50_waitForAnim(5);
+			_vm->_gameSys->setAnimation(0xB4, 100, 6);
+			_vm->_gameSys->setAnimation(_s50_rightTongueSequenceId, 100, 5);
+			waitForAnim(6);
+			waitForAnim(5);
 		}
 	} else {
-		_gameSys->insertSequence(0xBE, 100, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncWait, 0, 0, 0);
-		_gameSys->setAnimation(0xBE, 100, 5);
-		scene50_waitForAnim(5);
-		_gameSys->insertSequence(0xBF, 100, 0xBE, 100, kSeqSyncWait, 0, 0, 0);
-		_gameSys->insertSequence(0xB5, 100, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
+		_vm->_gameSys->insertSequence(0xBE, 100, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncWait, 0, 0, 0);
+		_vm->_gameSys->setAnimation(0xBE, 100, 5);
+		waitForAnim(5);
+		_vm->_gameSys->insertSequence(0xBF, 100, 0xBE, 100, kSeqSyncWait, 0, 0, 0);
+		_vm->_gameSys->insertSequence(0xB5, 100, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
 		_s50_rightTongueSequenceId = 0xBF;
 		_s50_leftTongueSequenceId = 0xB5;
 		_s50_rightTongueId = 100;
 		_s50_leftTongueId = 100;
-		_gameSys->setAnimation(0xB5, 100, 6);
-		_gameSys->setAnimation(_s50_rightTongueSequenceId, 100, 5);
-		scene50_waitForAnim(6);
-		scene50_waitForAnim(5);
+		_vm->_gameSys->setAnimation(0xB5, 100, 6);
+		_vm->_gameSys->setAnimation(_s50_rightTongueSequenceId, 100, 5);
+		waitForAnim(6);
+		waitForAnim(5);
 	}
 	// TODO delayTicksA(1, 7);
 }
 
-void GnapEngine::scene50_delayTicks() {
+void Scene50::delayTicks() {
 	// TODO delayTicksA(3, 7);
 }
 
-void GnapEngine::scene50_initRound() {
+void Scene50::initRound() {
 	_s50_leftTongueEnergy = 10;
 	_s50_rightTongueEnergy = 10;
 	_s50_fightDone = false;
-	_timers[3] = scene50_getRightTongueActionTicks();
-	_timers[4] = 0;
-	_timers[6] = 0;
-	_gameSys->fillSurface(0, 91, 73, 260, 30, 212, 0, 0);
-	_gameSys->fillSurface(0, 450, 73, 260, 30, 212, 0, 0);
+	_vm->_timers[3] = getRightTongueActionTicks();
+	_vm->_timers[4] = 0;
+	_vm->_timers[6] = 0;
+	_vm->_gameSys->fillSurface(0, 91, 73, 260, 30, 212, 0, 0);
+	_vm->_gameSys->fillSurface(0, 450, 73, 260, 30, 212, 0, 0);
 	_s50_timeRemaining = 40;
-	scene50_drawCountdown(40);
+	drawCountdown(40);
 }
 
-bool GnapEngine::scene50_updateCountdown() {
-	if (!_timers[5]) {
+bool Scene50::updateCountdown() {
+	if (!_vm->_timers[5]) {
 		--_s50_timeRemaining;
 		if (_s50_timeRemaining < 0) {
 			return true;
 		} else {
-			_timers[5] = 15;
-			scene50_drawCountdown(_s50_timeRemaining);
+			_vm->_timers[5] = 15;
+			drawCountdown(_s50_timeRemaining);
 		}
 	}
 	return false;
 }
 
-void GnapEngine::scene50_drawCountdown(int value) {
+void Scene50::drawCountdown(int value) {
 	char str[8];
 	sprintf(str, "%02d", value);
-	_gameSys->fillSurface(0, 371, 505, 50, 27, 0, 0, 0);
-	_gameSys->drawTextToSurface(0, 381, 504, 255, 255, 255, str);
+	_vm->_gameSys->fillSurface(0, 371, 505, 50, 27, 0, 0, 0);
+	_vm->_gameSys->drawTextToSurface(0, 381, 504, 255, 255, 255, str);
 }
 
-void GnapEngine::scene50_playTonguesIdle() {
-	_gameSys->insertSequence(0xBA, 100, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
-	_gameSys->insertSequence(0xC2, 100, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncWait, 0, 0, 0);
+void Scene50::playTonguesIdle() {
+	_vm->_gameSys->insertSequence(0xBA, 100, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
+	_vm->_gameSys->insertSequence(0xC2, 100, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncWait, 0, 0, 0);
 	_s50_leftTongueSequenceId = 0xBA;
 	_s50_rightTongueSequenceId = 0xC2;
 	_s50_rightTongueNextSequenceId = -1;
 	_s50_leftTongueNextSequenceId = -1;
 	_s50_leftTongueId = 100;
 	_s50_rightTongueId = 100;
-	_gameSys->setAnimation(0xC2, 100, 5);
-	_gameSys->setAnimation(_s50_leftTongueSequenceId, _s50_leftTongueId, 6);
+	_vm->_gameSys->setAnimation(0xC2, 100, 5);
+	_vm->_gameSys->setAnimation(_s50_leftTongueSequenceId, _s50_leftTongueId, 6);
 }
 
-void GnapEngine::scene50_playRoundAnim(int roundNum) {
-	int sequenceId;
+void Scene50::playRoundAnim(int roundNum) {
+	int sequenceId = 0;
 	
 	switch (roundNum) {
 	case 1:
@@ -158,23 +186,21 @@ void GnapEngine::scene50_playRoundAnim(int roundNum) {
 		break;
 	}
 
-	_gameSys->insertSequence(sequenceId, 256, 0, 0, kSeqNone, 0, 0, 0);
-	_gameSys->setAnimation(sequenceId, 256, 7);
-	scene50_waitForAnim(7);
-
-	_gameSys->insertSequence(0xAB, 256, sequenceId, 256, kSeqSyncWait, 0, 0, 0);
-	_gameSys->setAnimation(0xAB, 256, 7);
-	scene50_waitForAnim(7);
+	_vm->_gameSys->insertSequence(sequenceId, 256, 0, 0, kSeqNone, 0, 0, 0);
+	_vm->_gameSys->setAnimation(sequenceId, 256, 7);
+	waitForAnim(7);
 
+	_vm->_gameSys->insertSequence(0xAB, 256, sequenceId, 256, kSeqSyncWait, 0, 0, 0);
+	_vm->_gameSys->setAnimation(0xAB, 256, 7);
+	waitForAnim(7);
 }
 
-bool GnapEngine::scene50_updateEnergyBars(int newLeftBarPos, int newRightBarPos) {
-	
+bool Scene50::updateEnergyBars(int newLeftBarPos, int newRightBarPos) {
 	if (newLeftBarPos != _s50_leftTongueEnergyBarPos) {
 		if (newLeftBarPos < 0)
 			newLeftBarPos = 0;
 		_s50_leftTongueEnergyBarPos = newLeftBarPos;
-		_gameSys->fillSurface(0, 26 * newLeftBarPos + 91, 73, 260 - 26 * newLeftBarPos, 30, 0, 0, 0);
+		_vm->_gameSys->fillSurface(0, 26 * newLeftBarPos + 91, 73, 260 - 26 * newLeftBarPos, 30, 0, 0, 0);
 	}
 
 	if (newRightBarPos != _s50_rightTongueEnergyBarPos) {
@@ -182,7 +208,7 @@ bool GnapEngine::scene50_updateEnergyBars(int newLeftBarPos, int newRightBarPos)
 			newRightBarPos = 0;
 		_s50_rightTongueEnergyBarPos = newRightBarPos;
 		if (newRightBarPos != 10)
-			_gameSys->fillSurface(0, 26 * (9 - newRightBarPos) + 450, 73, 26, 30, 0, 0, 0);
+			_vm->_gameSys->fillSurface(0, 26 * (9 - newRightBarPos) + 450, 73, 26, 30, 0, 0, 0);
 	}
 
 	if (newLeftBarPos * newRightBarPos > 0)
@@ -193,37 +219,37 @@ bool GnapEngine::scene50_updateEnergyBars(int newLeftBarPos, int newRightBarPos)
 	return true;
 }
 
-void GnapEngine::scene50_waitForAnim(int animationIndex) {
-	while (_gameSys->getAnimationStatus(animationIndex) != 2) {
-		gameUpdateTick();
+void Scene50::waitForAnim(int animationIndex) {
+	while (_vm->_gameSys->getAnimationStatus(animationIndex) != 2) {
+		_vm->gameUpdateTick();
 	}
-	_gameSys->setAnimation(0, 0, animationIndex);
+	_vm->_gameSys->setAnimation(0, 0, animationIndex);
 }
 
-int GnapEngine::scene50_checkInput() {
+int Scene50::checkInput() {
 	int sequenceId = -1;
 
-	if (isKeyStatus1(Common::KEYCODE_RIGHT)) {
-		clearKeyStatus1(Common::KEYCODE_RIGHT);
+	if (_vm->isKeyStatus1(Common::KEYCODE_RIGHT)) {
+		_vm->clearKeyStatus1(Common::KEYCODE_RIGHT);
 		sequenceId = 0xB6;
-	} else if (isKeyStatus1(Common::KEYCODE_LEFT)) {
-		clearKeyStatus1(Common::KEYCODE_LEFT);
+	} else if (_vm->isKeyStatus1(Common::KEYCODE_LEFT)) {
+		_vm->clearKeyStatus1(Common::KEYCODE_LEFT);
 		sequenceId = 0xB3;
-	} else if (isKeyStatus1(Common::KEYCODE_ESCAPE)) {
-		clearKeyStatus1(Common::KEYCODE_ESCAPE);
+	} else if (_vm->isKeyStatus1(Common::KEYCODE_ESCAPE)) {
+		_vm->clearKeyStatus1(Common::KEYCODE_ESCAPE);
 		_s50_fightDone = true;
 	}
 	
 	return sequenceId;
 }
 
-int GnapEngine::scene50_getRightTongueAction() {
+int Scene50::getRightTongueAction() {
 	int sequenceId = -1;
 
-	if (!_timers[3]) {
-		_timers[3] = scene50_getRightTongueActionTicks();
+	if (!_vm->_timers[3]) {
+		_vm->_timers[3] = getRightTongueActionTicks();
 		if (_s50_rightTongueEnergy >= _s50_leftTongueEnergy) {
-			switch (getRandom(5)) {
+			switch (_vm->getRandom(5)) {
 			case 0:
 				sequenceId = 0xBE;
 				break;
@@ -241,7 +267,7 @@ int GnapEngine::scene50_getRightTongueAction() {
 				break;
 			}
 		} else {
-			switch (getRandom(4)) {
+			switch (_vm->getRandom(4)) {
 			case 0:
 				sequenceId = 0xBE;
 				break;
@@ -261,12 +287,11 @@ int GnapEngine::scene50_getRightTongueAction() {
 	return sequenceId;
 }
 
-void GnapEngine::scene50_updateAnimations() {
-	
-	if (!_timers[4])
+void Scene50::updateAnimations() {
+	if (!_vm->_timers[4])
 		_s50_attackCounter = 0;
 
-	if (_gameSys->getAnimationStatus(5) == 2) {
+	if (_vm->_gameSys->getAnimationStatus(5) == 2) {
 		if (_s50_rightTongueSequenceId == 0xBE) {
 			if (_s50_leftTongueSequenceId != 0xB3 && _s50_leftTongueSequenceId != 0xB8)
 				_s50_rightTongueNextSequenceId = 0xBF;
@@ -276,38 +301,38 @@ void GnapEngine::scene50_updateAnimations() {
 		if (_s50_rightTongueNextSequenceId == -1)
 			_s50_rightTongueNextSequenceId = 0xC2;
 		if (_s50_rightTongueNextSequenceId == 0xBF) {
-			_s50_leftTongueNextId = scene50_getLeftTongueNextId();
-			_s50_rightTongueNextId = scene50_getRightTongueNextId();
-			_gameSys->setAnimation(_s50_rightTongueNextSequenceId, _s50_rightTongueNextId, 5);
-			_gameSys->setAnimation(0xB9, _s50_leftTongueNextId, 6);
-			_gameSys->insertSequence(_s50_rightTongueNextSequenceId, _s50_rightTongueNextId, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncWait, 0, 0, 0);
-			_gameSys->insertSequence(0xB9, _s50_leftTongueNextId, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncExists, 0, 0, 0);
+			_s50_leftTongueNextId = getLeftTongueNextId();
+			_s50_rightTongueNextId = getRightTongueNextId();
+			_vm->_gameSys->setAnimation(_s50_rightTongueNextSequenceId, _s50_rightTongueNextId, 5);
+			_vm->_gameSys->setAnimation(0xB9, _s50_leftTongueNextId, 6);
+			_vm->_gameSys->insertSequence(_s50_rightTongueNextSequenceId, _s50_rightTongueNextId, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncWait, 0, 0, 0);
+			_vm->_gameSys->insertSequence(0xB9, _s50_leftTongueNextId, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncExists, 0, 0, 0);
 			_s50_rightTongueSequenceId = _s50_rightTongueNextSequenceId;
 			_s50_rightTongueNextSequenceId = -1;
 			_s50_leftTongueSequenceId = 0xB9;
 			_s50_leftTongueNextSequenceId = -1;
 			_s50_rightTongueId = _s50_rightTongueNextId;
 			_s50_leftTongueId = _s50_leftTongueNextId;
-			_s50_leftTongueEnergy -= getRandom(2) + 1;//CHECKME
+			_s50_leftTongueEnergy -= _vm->getRandom(2) + 1;//CHECKME
 		} else {
-			_s50_rightTongueNextId = scene50_getRightTongueNextId();
-			_gameSys->setAnimation(_s50_rightTongueNextSequenceId, _s50_rightTongueNextId, 5);
-			_gameSys->insertSequence(_s50_rightTongueNextSequenceId, _s50_rightTongueNextId, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncWait, 0, 0, 0);
+			_s50_rightTongueNextId = getRightTongueNextId();
+			_vm->_gameSys->setAnimation(_s50_rightTongueNextSequenceId, _s50_rightTongueNextId, 5);
+			_vm->_gameSys->insertSequence(_s50_rightTongueNextSequenceId, _s50_rightTongueNextId, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncWait, 0, 0, 0);
 			_s50_rightTongueSequenceId = _s50_rightTongueNextSequenceId;
 			_s50_rightTongueNextSequenceId = -1;
 			_s50_rightTongueId = _s50_rightTongueNextId;
 		}
 	}
 
-	if (_gameSys->getAnimationStatus(6) == 2) {
+	if (_vm->_gameSys->getAnimationStatus(6) == 2) {
 		if (_s50_leftTongueSequenceId == 0xB6) {
 			++_s50_attackCounter;
 			if (_s50_timesPlayedModifier + 3 <= _s50_attackCounter) {
 				_s50_leftTongueNextSequenceId = 0xB8;
 			} else {
-				_timers[4] = 20;
+				_vm->_timers[4] = 20;
 				//CHECKME
-				if (_s50_rightTongueSequenceId != 0xBB && _s50_rightTongueSequenceId != 0xC0 && getRandom(8) != _s50_roundNum)
+				if (_s50_rightTongueSequenceId != 0xBB && _s50_rightTongueSequenceId != 0xC0 && _vm->getRandom(8) != _s50_roundNum)
 					_s50_leftTongueNextSequenceId = 0xB7;
 				else
 					_s50_leftTongueNextSequenceId = 0xB8;
@@ -318,12 +343,12 @@ void GnapEngine::scene50_updateAnimations() {
 		if (_s50_leftTongueNextSequenceId == -1)
 			_s50_leftTongueNextSequenceId = 0xBA;
 		if (_s50_leftTongueNextSequenceId == 0xB7) {
-			_s50_leftTongueNextId = scene50_getLeftTongueNextId();
-			_s50_rightTongueNextId = scene50_getRightTongueNextId();
-			_gameSys->setAnimation(_s50_leftTongueNextSequenceId, _s50_leftTongueNextId, 6);
-			_gameSys->setAnimation(0xC1, _s50_rightTongueNextId, 5);
-			_gameSys->insertSequence(_s50_leftTongueNextSequenceId, _s50_leftTongueNextId, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
-			_gameSys->insertSequence(0xC1, _s50_rightTongueNextId, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncExists, 0, 0, 0);
+			_s50_leftTongueNextId = getLeftTongueNextId();
+			_s50_rightTongueNextId = getRightTongueNextId();
+			_vm->_gameSys->setAnimation(_s50_leftTongueNextSequenceId, _s50_leftTongueNextId, 6);
+			_vm->_gameSys->setAnimation(0xC1, _s50_rightTongueNextId, 5);
+			_vm->_gameSys->insertSequence(_s50_leftTongueNextSequenceId, _s50_leftTongueNextId, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
+			_vm->_gameSys->insertSequence(0xC1, _s50_rightTongueNextId, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncExists, 0, 0, 0);
 			_s50_leftTongueSequenceId = _s50_leftTongueNextSequenceId;
 			_s50_leftTongueNextSequenceId = -1;
 			_s50_rightTongueSequenceId = 0xC1;
@@ -332,19 +357,19 @@ void GnapEngine::scene50_updateAnimations() {
 			_s50_leftTongueId = _s50_leftTongueNextId;
 			--_s50_rightTongueEnergy;
 		} else if (_s50_leftTongueNextSequenceId != 0xB8 || _s50_rightTongueSequenceId != 0xC2) {
-			_s50_leftTongueNextId = scene50_getLeftTongueNextId();
-			_gameSys->setAnimation(_s50_leftTongueNextSequenceId, _s50_leftTongueNextId, 6);
-			_gameSys->insertSequence(_s50_leftTongueNextSequenceId, _s50_leftTongueNextId, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
+			_s50_leftTongueNextId = getLeftTongueNextId();
+			_vm->_gameSys->setAnimation(_s50_leftTongueNextSequenceId, _s50_leftTongueNextId, 6);
+			_vm->_gameSys->insertSequence(_s50_leftTongueNextSequenceId, _s50_leftTongueNextId, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
 			_s50_leftTongueSequenceId = _s50_leftTongueNextSequenceId;
 			_s50_leftTongueNextSequenceId = -1;
 			_s50_leftTongueId = _s50_leftTongueNextId;
 		} else {
-			_s50_leftTongueNextId = scene50_getLeftTongueNextId();
-			_s50_rightTongueNextId = scene50_getRightTongueNextId();
-			_gameSys->setAnimation(0xBB, _s50_rightTongueNextId, 5);
-			_gameSys->setAnimation(_s50_leftTongueNextSequenceId, _s50_leftTongueNextId, 6);
-			_gameSys->insertSequence(_s50_leftTongueNextSequenceId, _s50_leftTongueNextId, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
-			_gameSys->insertSequence(0xBB, _s50_rightTongueNextId, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncExists, 0, 0, 0);
+			_s50_leftTongueNextId = getLeftTongueNextId();
+			_s50_rightTongueNextId = getRightTongueNextId();
+			_vm->_gameSys->setAnimation(0xBB, _s50_rightTongueNextId, 5);
+			_vm->_gameSys->setAnimation(_s50_leftTongueNextSequenceId, _s50_leftTongueNextId, 6);
+			_vm->_gameSys->insertSequence(_s50_leftTongueNextSequenceId, _s50_leftTongueNextId, _s50_leftTongueSequenceId, _s50_leftTongueId, kSeqSyncWait, 0, 0, 0);
+			_vm->_gameSys->insertSequence(0xBB, _s50_rightTongueNextId, _s50_rightTongueSequenceId, _s50_rightTongueId, kSeqSyncExists, 0, 0, 0);
 			_s50_rightTongueSequenceId = 0xBB;
 			_s50_rightTongueId = _s50_rightTongueNextId;
 			_s50_rightTongueNextSequenceId = -1;
@@ -353,24 +378,23 @@ void GnapEngine::scene50_updateAnimations() {
 			_s50_leftTongueId = _s50_leftTongueNextId;
 		}
 	}
-
 }
 
-int GnapEngine::scene50_getRightTongueActionTicks() {
+int Scene50::getRightTongueActionTicks() {
 	return 15 - 5 * _s50_roundNum + 1;
 }
 
-int GnapEngine::scene50_getLeftTongueNextId() {
+int Scene50::getLeftTongueNextId() {
 	_s50_leftTongueNextIdCtr = (_s50_leftTongueNextIdCtr + 1) % 3;
 	return _s50_leftTongueNextIdCtr + 100;
 }
 
-int GnapEngine::scene50_getRightTongueNextId() {
+int Scene50::getRightTongueNextId() {
 	_s50_rightTongueNextIdCtr = (_s50_rightTongueNextIdCtr + 1) % 3;
 	return _s50_rightTongueNextIdCtr + 100;
 }
 
-void GnapEngine::scene50_playWinBadgeAnim(int tongueNum) {
+void Scene50::playWinBadgeAnim(int tongueNum) {
 	int sequenceId;
 	
 	if (tongueNum == 1) {
@@ -385,19 +409,17 @@ void GnapEngine::scene50_playWinBadgeAnim(int tongueNum) {
 			sequenceId = 0xC6;
 	}
 
-	_gameSys->setAnimation(sequenceId, 120, 7);
-	_gameSys->insertSequence(sequenceId, 120, 0, 0, kSeqNone, 0, 0, 0);
-	scene50_waitForAnim(7);
-
+	_vm->_gameSys->setAnimation(sequenceId, 120, 7);
+	_vm->_gameSys->insertSequence(sequenceId, 120, 0, 0, kSeqNone, 0, 0, 0);
+	waitForAnim(7);
 }
 
-void GnapEngine::scene50_run() {
-	
+void Scene50::run() {
 	++_s50_timesPlayed;
 	_s50_timesPlayedModifier = _s50_timesPlayed / 4;
 	_s50_leftTongueRoundsWon = 0;
 	_s50_rightTongueRoundsWon = 0;
-	// scene50_initFont();
+	// initFont();
 	_s50_leftTongueSequenceId = 186;
 	_s50_rightTongueSequenceId = 194;
 	_s50_rightTongueNextSequenceId = -1;
@@ -405,75 +427,72 @@ void GnapEngine::scene50_run() {
 	_s50_leftTongueId = 100;
 	_s50_rightTongueId = 100;
 
-	_gameSys->setAnimation(194, 100, 5);
-	_gameSys->setAnimation(_s50_leftTongueSequenceId, _s50_leftTongueId, 6);
-	_gameSys->insertSequence(_s50_leftTongueSequenceId, _s50_leftTongueId, 0, 0, kSeqNone, 0, 0, 0);
-	_gameSys->insertSequence(_s50_rightTongueSequenceId, _s50_rightTongueId, 0, 0, kSeqNone, 0, 0, 0);
-	_gameSys->insertSequence(172, 140, 0, 0, kSeqNone, 0, 0, 0);
-	endSceneInit();
+	_vm->_gameSys->setAnimation(194, 100, 5);
+	_vm->_gameSys->setAnimation(_s50_leftTongueSequenceId, _s50_leftTongueId, 6);
+	_vm->_gameSys->insertSequence(_s50_leftTongueSequenceId, _s50_leftTongueId, 0, 0, kSeqNone, 0, 0, 0);
+	_vm->_gameSys->insertSequence(_s50_rightTongueSequenceId, _s50_rightTongueId, 0, 0, kSeqNone, 0, 0, 0);
+	_vm->_gameSys->insertSequence(172, 140, 0, 0, kSeqNone, 0, 0, 0);
+	_vm->endSceneInit();
 
-	scene50_initRound();
+	initRound();
 
 	_s50_roundNum = 1;
 
-	setGrabCursorSprite(-1);
-	hideCursor();
+	_vm->setGrabCursorSprite(-1);
+	_vm->hideCursor();
 
 	// TODO delayTicksA(1, 7);
 
-	scene50_playRoundAnim(_s50_roundNum);
+	playRoundAnim(_s50_roundNum);
 
-	_timers[5] = 15;
+	_vm->_timers[5] = 15;
 
 	while (!_s50_fightDone) {
-
 		/* TODO
 		if (sceneXX_sub_4466B1())
 			_s50_fightDone = true;
 		*/
 
-		int playerSequenceId = scene50_checkInput();
+		int playerSequenceId = checkInput();
 		if (playerSequenceId != -1)
 			_s50_leftTongueNextSequenceId = playerSequenceId;
 
-		int rightSequenceId = scene50_getRightTongueAction();
+		int rightSequenceId = getRightTongueAction();
 		if (rightSequenceId != -1)
 			_s50_rightTongueNextSequenceId = rightSequenceId;
 
-		scene50_updateAnimations();
+		updateAnimations();
 
-		if (scene50_updateCountdown() ||
-			scene50_updateEnergyBars(_s50_leftTongueEnergy, _s50_rightTongueEnergy)) {
-			int v0;
+		if (updateCountdown() ||
+			updateEnergyBars(_s50_leftTongueEnergy, _s50_rightTongueEnergy)) {
+			bool v0;
 			if (_s50_rightTongueEnergy < _s50_leftTongueEnergy)
-				v0 = scene50_tongueWinsRound(1);
+				v0 = tongueWinsRound(1);
 			else
-				v0 = scene50_tongueWinsRound(2);
+				v0 = tongueWinsRound(2);
 			if (v0) {
-				scene50_delayTicks();
+				delayTicks();
 				_s50_fightDone = true;
 			} else {
 				++_s50_roundNum;
-				scene50_initRound();
-				scene50_playTonguesIdle();
-				scene50_updateEnergyBars(_s50_leftTongueEnergy, _s50_rightTongueEnergy);
-				scene50_playRoundAnim(_s50_roundNum);
-				_timers[5] = 15;
+				initRound();
+				playTonguesIdle();
+				updateEnergyBars(_s50_leftTongueEnergy, _s50_rightTongueEnergy);
+				playRoundAnim(_s50_roundNum);
+				_vm->_timers[5] = 15;
 			}
 		}
-		
-		gameUpdateTick();
-
+		_vm->gameUpdateTick();
 	}
 
-	// scene50_freeFont();
+	// freeFont();
 	
-	_gameSys->setAnimation(0, 0, 7);
-	_gameSys->setAnimation(0, 0, 6);
-	_gameSys->setAnimation(0, 0, 5);
-	_gameSys->setAnimation(0, 0, 3);
+	_vm->_gameSys->setAnimation(0, 0, 7);
+	_vm->_gameSys->setAnimation(0, 0, 6);
+	_vm->_gameSys->setAnimation(0, 0, 5);
+	_vm->_gameSys->setAnimation(0, 0, 3);
 
-	showCursor();
+	_vm->showCursor();
 }
 
 } // End of namespace Gnap
diff --git a/engines/gnap/scenes/scene50.h b/engines/gnap/scenes/scene50.h
new file mode 100644
index 0000000000..6cc4bc35cb
--- /dev/null
+++ b/engines/gnap/scenes/scene50.h
@@ -0,0 +1,87 @@
+/* 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.
+ *
+ */
+
+#ifndef GNAP_SCENE50_H
+#define GNAP_SCENE50_H
+
+#include "gnap/debugger.h"
+#include "gnap/scenes/scenecore.h"
+
+namespace Gnap {
+
+class GnapEngine;
+
+class Scene50: public Scene {
+public:
+	Scene50(GnapEngine *vm);
+	~Scene50() {}
+
+	virtual int init();
+	virtual void updateHotspots();
+	virtual void run();
+	virtual void updateAnimations();
+	virtual void updateAnimationsCb() {};
+
+private:
+	bool _s50_fightDone;
+	int _s50_timesPlayed;
+	int _s50_timesPlayedModifier;
+	int _s50_attackCounter;
+	int _s50_roundNum;
+	int _s50_timeRemaining;
+	int _s50_leftTongueRoundsWon;
+	int _s50_rightTongueRoundsWon;
+	int _s50_leftTongueEnergyBarPos;
+	int _s50_rightTongueEnergyBarPos;
+	int _s50_leftTongueSequenceId;
+	int _s50_leftTongueId;
+	int _s50_leftTongueNextSequenceId;
+	int _s50_leftTongueNextId;
+	int _s50_leftTongueNextIdCtr;
+	int _s50_rightTongueSequenceId;
+	int _s50_rightTongueId;
+	int _s50_rightTongueNextSequenceId;
+	int _s50_rightTongueNextId;
+	int _s50_rightTongueNextIdCtr;
+	int _s50_leftTongueEnergy;
+	int _s50_rightTongueEnergy;
+
+	bool tongueWinsRound(int tongueNum);
+	void playWinAnim(int tongueNum, bool fightOver);
+	void delayTicks();
+	void initRound();
+	bool updateCountdown();
+	void drawCountdown(int value);
+	void playTonguesIdle();
+	void playRoundAnim(int roundNum);
+	bool updateEnergyBars(int newLeftBarPos, int newRightBarPos);
+	void waitForAnim(int animationIndex);
+	int checkInput();
+	int getRightTongueAction();
+	int getRightTongueActionTicks();
+	int getLeftTongueNextId();
+	int getRightTongueNextId();
+	void playWinBadgeAnim(int tongueNum);
+};
+
+} // End of namespace Gnap
+#endif // GNAP_SCENE50_H
diff --git a/engines/gnap/scenes/scenecore.cpp b/engines/gnap/scenes/scenecore.cpp
index a4d7604b0f..438604670b 100644
--- a/engines/gnap/scenes/scenecore.cpp
+++ b/engines/gnap/scenes/scenecore.cpp
@@ -71,6 +71,7 @@
 #include "gnap/scenes/scene47.h"
 #include "gnap/scenes/scene48.h"
 #include "gnap/scenes/scene49.h"
+#include "gnap/scenes/scene50.h"
 #include "gnap/scenes/scene54.h"
 
 namespace Gnap {
@@ -412,7 +413,8 @@ int GnapEngine::initSceneLogic() {
 		initSceneGrid(21, 146, 11, 10);
 		break;
 	case 50:
-		backgroundId = scene50_init();
+		_scene = new Scene50(this);
+		backgroundId = _scene->init();
 		_gameSys->setScaleValues(0, 500, 1, 1000);
 		initSceneGrid(21, 146, 11, 10);
 		break;
@@ -770,13 +772,14 @@ void GnapEngine::runSceneLogic() {
 		delete _scene;
 		break;
 	case 49:
-		_scene = new Scene48(this);
-		_scene->init();
+		_scene->run();
+		delete _scene;
 		if (_newSceneNum == 55)
 			_newSceneNum = 47;
 		break;
 	case 50:
-		scene50_run();
+		_scene->run();
+		delete _scene;
 		_newSceneNum = _prevSceneNum;
 		break;
 	case 51: