MADS: Added game initialisation code

10 files changed, 512 insertions, 12 deletions

diff --git a/engines/mads/dialogs.cpp b/engines/mads/dialogs.cpp
index c6049c3c1a..34a0b86abc 100644
--- a/engines/mads/dialogs.cpp
+++ b/engines/mads/dialogs.cpp
@@ -285,15 +285,16 @@ void TextDialog::draw() {
 }
 
 void TextDialog::drawWithInput() {
-	int innerWidth = _innerWidth;
-	int lineHeight = _vm->_font->getHeight() + 1;
-	int xp = _position.x + 5;
+	//int innerWidth = _innerWidth;
+	//int lineHeight = _vm->_font->getHeight() + 1;
+	//int xp = _position.x + 5;
 
 	// Draw the content of the dialog
 	drawContent(Common::Rect(_position.x + 2, _position.y + 2,
 		_position.x + _width - 2, _position.y + _height - 2), 0,
 		TEXTDIALOG_CONTENT1, TEXTDIALOG_CONTENT2);
-
+	
+	error("TODO: drawWithInput");
 }
 
 void TextDialog::restorePalette() {
diff --git a/engines/mads/events.cpp b/engines/mads/events.cpp
index 89d1560714..23d2e72eeb 100644
--- a/engines/mads/events.cpp
+++ b/engines/mads/events.cpp
@@ -42,7 +42,7 @@ EventsManager::EventsManager(MADSEngine *vm) {
 }
 
 EventsManager::~EventsManager() {
-	delete _cursorSprites;
+	freeCursors();
 }
 
 void EventsManager::loadCursors(const Common::String &spritesName) {
@@ -68,8 +68,22 @@ void EventsManager::hideCursor() {
 	CursorMan.showMouse(false);
 }
 
+void EventsManager::resetCursor() {
+	CursorType cursorId = (CursorType)MIN(_cursorSprites->getCount(), (int)CURSOR_WAIT);
+	_newCursorId = cursorId;
+	if (_cursorId != _newCursorId) {
+		changeCursor();
+		_cursorId = _newCursorId;
+	}
+}
+
 void EventsManager::changeCursor() {
+	warning("TODO: changeCursor");
+}
 
+void EventsManager::freeCursors() {
+	delete _cursorSprites;
+	_cursorSprites = nullptr;
 }
 
 void EventsManager::pollEvents() {
diff --git a/engines/mads/events.h b/engines/mads/events.h
index 4705e6258f..01f48170d4 100644
--- a/engines/mads/events.h
+++ b/engines/mads/events.h
@@ -93,6 +93,16 @@ public:
 	void hideCursor();
 
 	/**
+	 * Resets the cursor, if necessary
+	 */
+	void resetCursor();
+
+	/**
+	 * Free currently loaded cursors
+	 */
+	void freeCursors();
+
+	/**
 	 * Poll any pending events
 	 */
 	void pollEvents();
diff --git a/engines/mads/game.cpp b/engines/mads/game.cpp
index 774ec98eb4..aa0d1dcac6 100644
--- a/engines/mads/game.cpp
+++ b/engines/mads/game.cpp
@@ -26,6 +26,7 @@
 #include "mads/nebular/game_nebular.h"
 #include "mads/graphics.h"
 #include "mads/msurface.h"
+#include "mads/resources.h"
 
 namespace MADS {
 
@@ -38,15 +39,66 @@ Game *Game::init(MADSEngine *vm) {
 
 Game::Game(MADSEngine *vm): _vm(vm), _surface(nullptr) {
 	_sectionNumber = _priorSectionNumber = 0;
+	_difficultyLevel = DIFFICULTY_HARD;
+	_saveSlot = -1;
+	_statusFlag = 0;
+	_sectionHandler = nullptr;
 }
 
 Game::~Game() {
 	delete _surface;
+	delete _sectionHandler;
 }
 
 void Game::run() {
-	if (!checkCopyProtection())
-		return;
+	int protectionResult = checkCopyProtection();
+	switch (protectionResult) {
+	case 1:
+		// Copy protection failed
+		_scene._nextSceneId = 804;
+		initialiseGlobals();
+		_globalFlags[5] = 0xFFFF;
+		_saveSlot = -1;
+		break;
+	case 2:
+		_statusFlag = 0;
+		break;
+	default:
+		break;
+	}
+
+	if (_saveSlot == -1 && protectionResult != -1 && protectionResult != -2) {
+		initSection(_scene._sectionNum);
+		_statusFlag = _scene._sectionNum != 1;
+		_pendingDialog = DIALOG_DIFFICULTY;
+
+		showDialog();
+		_pendingDialog = DIALOG_NONE;
+
+		_vm->_events->freeCursors();
+		_scene._priorSectionNum = 0;
+		_scene._priorSceneId = 0;
+		_scene._sectionNum2 = -1;
+		_scene._currentSceneId = -1;
+	}
+
+	if (protectionResult != 1 && protectionResult != 2) {
+		initialiseGlobals();
+
+		if (_saveSlot != -1) {
+			warning("TODO: loadGame(\"REX.SAV\", 210)");
+			_statusFlag = false;
+		}
+	}
+
+	if (_statusFlag)
+		gameLoop();
+}
+
+void Game::gameLoop() {
+	setSectionHandler();
+
+	// TODO: More stuff
 }
 
 void Game::initSection(int sectionNumber) {
@@ -61,4 +113,73 @@ void Game::initSection(int sectionNumber) {
 		CURSOR_ARROW : CURSOR_WAIT);
 }
 
+void Game::loadObjects() {
+	File f("*OBJECTS.DAT");
+
+	// Get the total numer of inventory objects
+	int count = f.readUint16LE();
+	_objects.reserve(count);
+
+	// Read in each object
+	for (int i = 0; i < count; ++i) {
+		InventoryObject obj;
+		obj.load(f);
+		_objects.push_back(obj);
+
+		// If it's for the player's inventory, add the index to the inventory list
+		if (obj._roomNumber == PLAYER_INVENTORY) {
+			_inventoryList.push_back(i);
+			assert(_inventoryList.size() <= 32);
+		}
+	}
+}
+
+void Game::setObjectData(int objIndex, int id, const byte *p) {
+	// TODO: This whole method seems weird. Check it out more thoroughly once
+	// more of the engine is implemented
+	for (int i = 0; i < (int)_objects.size(); ++i) {
+		InventoryObject &obj = _objects[i];
+		if (obj._vocabList[0]._actionFlags1 <= i)
+			break;
+
+		if (obj._mutilateString[6 + i] == id) {
+			_objects[objIndex]._objFolder = p;
+		}
+	}
+}
+
+void Game::setObjectRoom(int objectId, int roomNumber) {
+	warning("TODO: setObjectRoom");
+}
+
+void Game::loadResourceSequence(const Common::String prefix, int v) {
+	warning("TODO: loadResourceSequence");
+}
+
+/*------------------------------------------------------------------------*/
+
+void InventoryObject::load(Common::SeekableReadStream &f) {
+	_descId = f.readUint16LE();
+	_roomNumber = f.readUint16LE();
+	_article = f.readByte();
+	_vocabCount = f.readByte();
+	
+	for (int i = 0; i < 3; ++i) {
+		_vocabList[i]._actionFlags1 = f.readByte();
+		_vocabList[i]._actionFlags2 = f.readByte();
+		_vocabList[i]._vocabId = f.readByte();
+	}
+
+	f.skip(4);	// field12
+	f.read(&_mutilateString[0], 10);
+	f.skip(16);
+}
+
+/*------------------------------------------------------------------------*/
+
+Player::Player() {
+	_direction = 8;
+	_newDirection = 8;
+}
+
 } // End of namespace MADS
diff --git a/engines/mads/game.h b/engines/mads/game.h
index bb15a8e35b..9dd7ca0ace 100644
--- a/engines/mads/game.h
+++ b/engines/mads/game.h
@@ -24,28 +24,136 @@
 #define MADS_GAME_H
 
 #include "common/scummsys.h"
+#include "mads/scene.h"
 
 namespace MADS {
 
 class MADSEngine;
 
+enum {
+	PLAYER_INVENTORY = 2
+};
+
+enum Difficulty {
+	DIFFICULTY_HARD = 1, DIFFICULTY_MEDIUM = 2, DIFFICULTY_EASY = 3
+};
+
+enum DialogId {
+	DIALOG_NONE = 0, DIALOG_GAME_MENU = 1, DIALOG_SAVE = 2, DIALOG_RESTORE = 3,
+	DIALOG_OPTIONS = 4, DIALOG_DIFFICULTY = 5, DIALOG_ERROR = 6
+};
+
+class InventoryObject {
+public:
+	int _descId;
+	int _roomNumber;
+	int _article;
+	int _vocabCount;
+	struct {
+		int _actionFlags1;
+		int _actionFlags2;
+		int _vocabId;
+	} _vocabList[3];
+	char _mutilateString[10];	// ???
+	const byte *_objFolder;		// ???
+
+	/**
+	 * Loads the data for a given object
+	 */
+	void load(Common::SeekableReadStream &f);
+};
+
+class Player {
+public:
+	int _direction;
+	int _newDirection;
+public:
+	Player();
+};
+
+class SectionHandler {
+protected:
+	MADSEngine *_vm;
+public:
+	SectionHandler(MADSEngine *vm): _vm(vm) {}
+
+	virtual void loadSection() = 0;
+	virtual void sectionPtr2() = 0;
+	virtual void sectionPtr3() = 0;
+};
+
 class Game {
+private:
+	/**
+	 * Main game loop
+	 */
+	void gameLoop();
 protected:
 	MADSEngine *_vm;
 	MSurface *_surface;
+	Difficulty _difficultyLevel;
+	Common::Array<uint16> _globalFlags;
+	Common::Array<InventoryObject> _objects;
+	Common::Array<int> _inventoryList;
+	Player _player;
+	Scene _scene;
+	int _saveSlot;
+	int _statusFlag;
+	DialogId _pendingDialog;
+
+	SectionHandler *_sectionHandler;
 
+	/**
+	 * Constructor
+	 */
 	Game(MADSEngine *vm);
 
 	/**
-	 * Perform any copy protection check
+	 * Loads the game's object list
+	 */
+	void loadObjects();
+
+	/**
+	 * Set the associated data? pointer with an inventory object
 	 */
-	virtual bool checkCopyProtection() = 0;
+	void setObjectData(int objIndex, int id, const byte *p);
+
+	/**
+	 * Sets the room number
+	 */
+	void setObjectRoom(int objectId, int roomNumber);
 
 	/**
 	 * Initialises the current section number of the game
 	 */
 	void initSection(int sectionNumber);
 
+	void loadResourceSequence(const Common::String prefix, int v);
+
+	//@{
+	/** @name Virtual Method list */
+
+	/**
+	 * Perform any copy protection check
+	 */
+	virtual int checkCopyProtection() = 0;
+
+	/**
+	 * Initialises global variables for a new game
+	 */
+	virtual void initialiseGlobals() = 0;
+
+	/**
+	 * Show a game dialog
+	 */
+	virtual void showDialog() = 0;
+
+	/**
+	 * Set up the section handler specific to each section
+	 */
+	virtual void setSectionHandler() = 0;
+	//@}
+
 public:
 	static Game *init(MADSEngine *vm);
 public:
diff --git a/engines/mads/module.mk b/engines/mads/module.mk
index 0b5f4c7b48..9219d04fdc 100644
--- a/engines/mads/module.mk
+++ b/engines/mads/module.mk
@@ -18,6 +18,7 @@ MODULE_OBJS := \
 	msurface.o \
 	palette.o \
 	resources.o \
+	scene.o \
 	sound.o \
 	user_interface.o
 
diff --git a/engines/mads/nebular/game_nebular.cpp b/engines/mads/nebular/game_nebular.cpp
index bf52af3733..2e27eaea0f 100644
--- a/engines/mads/nebular/game_nebular.cpp
+++ b/engines/mads/nebular/game_nebular.cpp
@@ -37,15 +37,153 @@ GameNebular::GameNebular(MADSEngine *vm): Game(vm) {
 	_surface =MSurface::init(MADS_SCREEN_WIDTH, MADS_SCREEN_HEIGHT - MADS_INTERFACE_HEIGHT);
 }
 
-bool GameNebular::checkCopyProtection() {
+int GameNebular::checkCopyProtection() {
 	if (!ConfMan.getBool("copy_protection"))
 		return true;
 
+	/* DEBUG: Disabled for now
 	CopyProtectionDialog *dlg = new CopyProtectionDialog(_vm, false);
 	dlg->show();
 	delete dlg;
+	*/
 
-	return false;
+	// DEBUG: Return that copy protection failed
+	return 1;
+}
+
+void GameNebular::initialiseGlobals() {
+	// Allocate globals space
+	_globalFlags.resize(210);
+	for (int i = 0; i < 210; ++i)
+		_globalFlags[i] = 0;
+
+	// Set specific values needed by the game
+	_globalFlags[4] = 8;
+	_globalFlags[33] = 1;
+	_globalFlags[10] = 0xFFFF;
+	_globalFlags[13] = 0xFFFF;
+	_globalFlags[15] = 0xFFFF;
+	_globalFlags[19] = 0xFFFF;
+	_globalFlags[20] = 0xFFFF;
+	_globalFlags[21] = 0xFFFF;
+	_globalFlags[95] = 0xFFFF;
+
+	setObjectData(3, 17, nullptr);
+
+	// Put the values 0 through 3 in a random order in global slots 83 to 86
+	for (int i = 0; i < 4;) {
+		int randomVal = _vm->getRandomNumber(3);
+		_globalFlags[83 + i] = randomVal;
+
+		bool flag = false;
+		for (int idx2 = 0; idx2 < i; ++idx2) {
+			if (_globalFlags[83 + idx2] == randomVal)
+				flag = true;
+		}
+
+		if (!flag)
+			++i;
+	}
+
+	// Put the values 0 through 3 in a random order in global slots 87 to 90
+	for (int i = 0; i < 4;) {
+		int randomVal = _vm->getRandomNumber(3);
+		_globalFlags[87 + i] = randomVal;
+
+		bool flag = false;
+		for (int idx2 = 0; idx2 < i; ++idx2) {
+			if (_globalFlags[87 + idx2] == randomVal)
+				flag = true;
+		}
+
+		if (!flag)
+			++i;
+	}
+
+	_globalFlags[120] = 501;
+	_globalFlags[121] = 0xFFFF;
+	_globalFlags[55] = 0xFFFF;
+	_globalFlags[119] = 1;
+	_globalFlags[134] = 4;
+
+	// Fill out the globals 200 to 209 with unique random values less than 10000
+	for (int i = 0; i < 10; ++i) {
+		int randomVal = _vm->getRandomNumber(9999);
+		_globalFlags[200 + i] = randomVal;
+
+		bool flag = false;
+		for (int idx2 = 0; idx2 < i; ++idx2) {
+			if (_globalFlags[200 + idx2] == randomVal)
+				flag = true;
+		}
+
+		if (!flag)
+			++i;
+	}
+
+	// Difficulty level control
+	switch (_difficultyLevel) {
+	case DIFFICULTY_HARD:
+		_globalFlags[35] = 0;
+		setObjectRoom(9, 1);
+		setObjectRoom(50, 1);
+		_globalFlags[137] = 5;
+		_globalFlags[136] = 0;
+		break;
+	case DIFFICULTY_MEDIUM:
+		_globalFlags[35] = 0;
+		setObjectRoom(8, 1);
+		_globalFlags[137] = 0xFFFF;
+		_globalFlags[136] = 6;
+		break;
+	case DIFFICULTY_EASY:
+		_globalFlags[35] = 2;
+		setObjectRoom(8, 1);
+		setObjectRoom(27, 1);
+		break;
+	default:
+		break;
+	}
+
+	_player._direction = 8;
+	_player._newDirection = 8;
+
+	loadResourceSequence("RXM", 1);
+	loadResourceSequence("ROX", 1);
+}
+
+void GameNebular::showDialog() {
+	warning("TODO: showDialog");
+}
+
+void GameNebular::setSectionHandler() {
+	delete _sectionHandler;
+
+	switch (_scene._sectionNum) {
+	case 1:
+		_sectionHandler = new Section1Handler(_vm);
+		break;
+	case 2:
+		_sectionHandler = new Section2Handler(_vm);
+		break;
+	case 3:
+		_sectionHandler = new Section3Handler(_vm);
+		break;
+	case 4:
+		_sectionHandler = new Section4Handler(_vm);
+		break;
+	case 5:
+		_sectionHandler = new Section5Handler(_vm);
+		break;
+	case 6:
+		_sectionHandler = new Section6Handler(_vm);
+		break;
+	case 7:
+		_sectionHandler = new Section7Handler(_vm);
+		break;
+	default:
+		break;
+	}
 }
 
 } // End of namespace Nebular
diff --git a/engines/mads/nebular/game_nebular.h b/engines/mads/nebular/game_nebular.h
index b0f088f891..b7f47aa9cd 100644
--- a/engines/mads/nebular/game_nebular.h
+++ b/engines/mads/nebular/game_nebular.h
@@ -35,9 +35,35 @@ class GameNebular: public Game {
 protected:
 	GameNebular(MADSEngine *vm);
 
-	virtual bool checkCopyProtection();
+	virtual int checkCopyProtection();
+
+	virtual void initialiseGlobals();
+
+	virtual void showDialog();
+
+	virtual void setSectionHandler();
 };
 
+
+class Section1Handler: public SectionHandler {
+public:
+	Section1Handler(MADSEngine *vm): SectionHandler(vm) {}
+
+	// TODO: Properly implement handler methods
+	virtual void loadSection() {}
+	virtual void sectionPtr2() {}
+	virtual void sectionPtr3() {}
+};
+
+// TODO: Properly implement handler classes
+typedef Section1Handler Section2Handler;
+typedef Section1Handler Section3Handler;
+typedef Section1Handler Section4Handler;
+typedef Section1Handler Section5Handler;
+typedef Section1Handler Section6Handler;
+typedef Section1Handler Section7Handler;
+
+
 } // End of namespace Nebular
 
 } // End of namespace MADS
diff --git a/engines/mads/scene.cpp b/engines/mads/scene.cpp
new file mode 100644
index 0000000000..f6bbf32e40
--- /dev/null
+++ b/engines/mads/scene.cpp
@@ -0,0 +1,37 @@
+/* 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 "mads/scene.h"
+
+namespace MADS {
+
+Scene::Scene() {
+	_sectionNum = 1;
+	_sectionNum2 = -1;
+	_priorSectionNum = 0;
+	_priorSceneId = 0;
+	_nextSceneId = 0;
+	_currentSceneId = 0;
+}
+
+} // End of namespace MADS
diff --git a/engines/mads/scene.h b/engines/mads/scene.h
new file mode 100644
index 0000000000..a5359a9895
--- /dev/null
+++ b/engines/mads/scene.h
@@ -0,0 +1,44 @@
+/* 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 MADS_SCENE_H
+#define MADS_SCENE_H
+
+#include "common/scummsys.h"
+
+namespace MADS {
+
+class Scene {
+public:
+	int _priorSectionNum;
+	int _sectionNum;
+	int _sectionNum2;
+	int _priorSceneId;
+	int _nextSceneId;
+	int _currentSceneId;
+	
+	Scene();
+};
+
+} // End of namespace MADS
+
+#endif /* MADS_SCENE_H */