AVALANCHE: Implement Nim::playNim().

Repair naming of variables in Nim and add some helper functions.

6 files changed, 91 insertions, 56 deletions

diff --git a/engines/avalanche/avalanche.cpp b/engines/avalanche/avalanche.cpp
index 573f9abe71..eacb01f132 100644
--- a/engines/avalanche/avalanche.cpp
+++ b/engines/avalanche/avalanche.cpp
@@ -213,6 +213,7 @@ const char *AvalancheEngine::getCopyrightString() const {
 void AvalancheEngine::synchronize(Common::Serializer &sz) {
 	_animation->synchronize(sz);
 	_parser->synchronize(sz);
+	_nim->synchronize(sz);
 	_sequence->synchronize(sz);
 	_background->synchronize(sz);
 
diff --git a/engines/avalanche/avalot.cpp b/engines/avalanche/avalot.cpp
index 27c02449e2..8b2a590e35 100644
--- a/engines/avalanche/avalot.cpp
+++ b/engines/avalanche/avalot.cpp
@@ -1481,6 +1481,7 @@ void AvalancheEngine::resetVariables() {
 	_startTime = getTimeInSeconds();
 
 	_parser->resetVariables();
+	_nim->resetVariables();
 	_animation->resetVariables();
 	_sequence->resetVariables();
 	_background->resetVariables();
diff --git a/engines/avalanche/nim.cpp b/engines/avalanche/nim.cpp
index cc4681bf3b..faca3e491d 100644
--- a/engines/avalanche/nim.cpp
+++ b/engines/avalanche/nim.cpp
@@ -30,14 +30,83 @@
 
 namespace Avalanche {
 
-const char * const Nim::names[2] = {"Avalot", "Dogfood"};
+const char * const Nim::kNames[2] = {"Avalot", "Dogfood"};
 
 Nim::Nim(AvalancheEngine *vm) {
 	_vm = vm;
+
+	_playedNim = 0;
+}
+
+void Nim::resetVariables() {
+	_playedNim = 0;
+}
+
+void Nim::synchronize(Common::Serializer &sz) {
+	sz.syncAsByte(_playedNim);
 }
 
 void Nim::playNim() {
-	warning("STUB: Nim::playNim()");
+	if (_vm->_wonNim) { // Already won the game.
+		_vm->_dialogs->displayScrollChain('Q',6);
+		return;
+	}
+
+	if (!_vm->_askedDogfoodAboutNim) {
+		_vm->_dialogs->displayScrollChain('q',84);
+		return;
+	}
+
+	_vm->_dialogs->displayScrollChain('Q',3);
+	_playedNim++;
+	_vm->fadeOut();
+
+	_vm->_graphics->saveScreen();
+
+	CursorMan.showMouse(false);
+	setup();
+	board();
+	CursorMan.showMouse(true);
+
+	do {
+		startMove();
+		if (_dogfoodsTurn)
+			dogFood();
+		else
+			takeSome();
+		_stones[_row] -= _number;
+		showChanges();
+	} while (_stonesLeft != 0);
+
+	endOfGame(); // Winning sequence is A1, B3, B1, C1, C1, btw.
+
+	_vm->fadeOut();
+	CursorMan.showMouse(false);
+
+	_vm->_graphics->restoreScreen();
+	_vm->_graphics->removeBackup();
+
+	CursorMan.showMouse(true);
+	_vm->fadeIn();
+
+	if (_dogfoodsTurn) { // Dogfood won - as usual.
+		if (_playedNim == 1) // Your first game.
+			_vm->_dialogs->displayScrollChain('Q',4); // Goody! Play me again?
+		else
+			_vm->_dialogs->displayScrollChain('Q',5); // Oh, look at that! I've won again!
+		_vm->decreaseMoney(4); // And you've just lost 4d!
+	}
+	else { // You won - strange!
+		_vm->_dialogs->displayScrollChain('Q', 7);
+		_vm->_objects[kObjectLute - 1] = true;
+		_vm->refreshObjectList();
+		_vm->_wonNim = true;
+		_vm->_background->draw(-1, -1, 0); // Show the settle with no lute on it.
+		_vm->incScore(7); // 7 points for winning!
+	}
+
+	if (_playedNim == 1)
+		_vm->incScore(3); // 3 points for playing your 1st game.
 }
 
 void Nim::chalk(int x,int y, Common::String z) {
diff --git a/engines/avalanche/nim.h b/engines/avalanche/nim.h
index fba34f5b01..a76afcfe22 100644
--- a/engines/avalanche/nim.h
+++ b/engines/avalanche/nim.h
@@ -33,23 +33,27 @@ namespace Avalanche {
 class Nim {
 public:
 	Nim(AvalancheEngine *vm);
+	void resetVariables();
+	void synchronize(Common::Serializer &sz);
 	void playNim();
 
 private:
 	AvalancheEngine *_vm;
 
-	static const char * const names[2];
-	byte old[3];
-	byte stones[3];
-	byte stonePic[4][23][7]; // Picture of Nimstone.
-	byte turns;
-	bool dogfoodsTurn;
-	byte stonesLeft;
-	bool clicked;
-	byte row;
-	byte number;
-	bool squeak;
-	int8 mNum, mRow;
+	static const char * const kNames[2];
+
+	byte _old[3];
+	byte _stones[3];
+	byte _stonePic[4][23][7]; // Picture of Nimstone.
+	byte _turns;
+	bool _dogfoodsTurn;
+	byte _stonesLeft;
+	bool _clicked;
+	byte _row;
+	byte _number;
+	bool _squeak;
+	int8 _mNum, _mRow;
+	byte _playedNim; // How many times you've played Nim.
 
 	void chalk(int x,int y, Common::String z);
 	void setup();
diff --git a/engines/avalanche/parser.cpp b/engines/avalanche/parser.cpp
index d5f57919b5..a77a71d157 100644
--- a/engines/avalanche/parser.cpp
+++ b/engines/avalanche/parser.cpp
@@ -51,7 +51,7 @@ Parser::Parser(AvalancheEngine *vm) {
 	_thing2 = 0;
 	_sworeNum = 0;
 	_alcoholLevel = 0;
-	_playedNim = 0;
+
 	_boughtOnion = false;
 }
 
@@ -1987,44 +1987,7 @@ void Parser::doThat() {
 			// They just typed "play"...
 			switch (_vm->_room) {
 			case kRoomArgentPub:
-				// ...in the pub, => play Nim.
-				_vm->_nim->playNim();
-
-				// The following parts are copied from the original play_nim() and a little plus.
-				// The player automatically wins the game everytime he plays, until I implement the mini-game.
-				if (_vm->_wonNim) { // Already won the game.
-					_vm->_dialogs->displayScrollChain('Q', 6);
-					return;
-				}
-
-				if (!_vm->_askedDogfoodAboutNim) {
-					_vm->_dialogs->displayScrollChain('q', 84);
-					return;
-				}
-
-				_vm->_dialogs->displayScrollChain('Q', 3);
-				_playedNim++;
-
-				// You won - strange!
-
-				// You won! Give us a lute!
-				_vm->_dialogs->displayScrollChain('Q', 7);
-				_vm->_objects[kObjectLute - 1] = true;
-				_vm->refreshObjectList();
-				_vm->_wonNim = true;
-				// Show the settle with no lute on it.
-				_vm->_background->draw(-1, -1, 0);
-				// 7 points for winning!
-				_vm->incScore(7);
-
-				if (_playedNim == 1)
-					// 3 points for playing your 1st game.
-					_vm->incScore(3);
-
-				// A warning to the player that there should have been a mini-game. TODO: Remove it later!!!
-				_vm->_dialogs->displayText(Common::String("P.S.: There should have been the mini-game called \"Nim\", " \
-					"but I haven't implemented it yet: you win and get the lute automatically.")
-					+ kControlNewLine + kControlNewLine + "Peter (uruk)");
+				_vm->_nim->playNim(); // ...in the pub, => play Nim.
 				break;
 			case kRoomMusicRoom:
 				playHarp();
@@ -2501,7 +2464,6 @@ void Parser::resetVariables() {
 	_wearing = kNothing;
 	_sworeNum = 0;
 	_alcoholLevel = 0;
-	_playedNim = 0;
 	_boughtOnion = false;
 }
 
@@ -2509,7 +2471,6 @@ void Parser::synchronize(Common::Serializer &sz) {
 	sz.syncAsByte(_wearing);
 	sz.syncAsByte(_sworeNum);
 	sz.syncAsByte(_alcoholLevel);
-	sz.syncAsByte(_playedNim);
 	sz.syncAsByte(_boughtOnion);
 }
 
diff --git a/engines/avalanche/parser.h b/engines/avalanche/parser.h
index fe46170e65..20066329e5 100644
--- a/engines/avalanche/parser.h
+++ b/engines/avalanche/parser.h
@@ -108,7 +108,6 @@ private:
 	byte _thing2;
 	byte _sworeNum;     // number of times you've sworn
 	byte _alcoholLevel; // Your blood alcohol level.
-	byte _playedNim;    // How many times you've played Nim.
 	bool _boughtOnion;  // Have you bought an onion yet?
 
 	byte wordNum(Common::String word);