MACVENTURE: Add save game loading

7 files changed, 275 insertions, 7 deletions

diff --git a/engines/macventure/macventure.cpp b/engines/macventure/macventure.cpp
index 5827ecc370..92ae709b5e 100644
--- a/engines/macventure/macventure.cpp
+++ b/engines/macventure/macventure.cpp
@@ -37,12 +37,6 @@ enum {
 	kMaxMenuTitleLength = 30
 };
 
-enum {
-	kGlobalSettingsID = 0x80,
-	kDiplomaGeometryID = 0x81,
-	kTextHuffmanTableID = 0x83
-};
-
 MacVentureEngine::MacVentureEngine(OSystem *syst, const ADGameDescription *gameDesc) : Engine(syst) {
 	_gameDescription = gameDesc;
 	_rnd = new Common::RandomSource("macventure");
@@ -79,6 +73,7 @@ Common::Error MacVentureEngine::run() {
 		error("Could not load the engine settings");
 
 	_gui = new Gui(this, _resourceManager);
+	_world = new World(this, _resourceManager);
 
 	_shouldQuit = false;
 	while (!_shouldQuit) {
diff --git a/engines/macventure/macventure.h b/engines/macventure/macventure.h
index da1f66a277..3a20bbe2a8 100644
--- a/engines/macventure/macventure.h
+++ b/engines/macventure/macventure.h
@@ -31,12 +31,14 @@
 #include "gui/debugger.h"
 
 #include "macventure/gui.h"
+#include "macventure/world.h"
 
 struct ADGameDescription;
 
 namespace MacVenture {
 
 class Console;
+class World;
 
 enum {
 	kScreenWidth = 512,
@@ -50,6 +52,19 @@ enum {
 	// the current limitation is 32 debug levels (1 << 31 is the last one)
 };
 
+enum {
+	kGlobalSettingsID = 0x80,
+	kDiplomaGeometryID = 0x81,
+	kTextHuffmanTableID = 0x83
+};
+
+enum {
+	kSaveGameStrID = 0x82,
+	kDiplomaFilenameID = 0x83,
+	kClickToContinueTextID = 0x84,
+	kStartGameFilenameID = 0x85
+};
+
 struct GlobalSettings {
 	uint16 numObjects;    // number of game objects defined
 	uint16 numGlobals;    // number of globals defined
@@ -102,6 +117,7 @@ private: // Attributes
 
 	Console *_debugger;
 	Gui *_gui;
+	World *_world;
 
 	// Engine state
 	GlobalSettings _globalSettings;
diff --git a/engines/macventure/module.mk b/engines/macventure/module.mk
index 3f11d15856..2fac1b5347 100644
--- a/engines/macventure/module.mk
+++ b/engines/macventure/module.mk
@@ -3,7 +3,9 @@ MODULE := engines/macventure
 MODULE_OBJS := \
 	detection.o \
 	gui.o \
-	macventure.o
+	object.o \
+	macventure.o \
+	world.o \
 
 MODULE_DIRS += \
 	engines/macventure
diff --git a/engines/macventure/object.cpp b/engines/macventure/object.cpp
new file mode 100644
index 0000000000..18a734ccd1
--- /dev/null
+++ b/engines/macventure/object.cpp
@@ -0,0 +1,30 @@
+/* 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 "macventure/object.h"
+
+namespace MacVenture {
+
+Object::Object() {}
+Object::~Object() {}
+
+} // End of namespace MacVenture
\ No newline at end of file
diff --git a/engines/macventure/object.h b/engines/macventure/object.h
new file mode 100644
index 0000000000..ebd64ad14f
--- /dev/null
+++ b/engines/macventure/object.h
@@ -0,0 +1,54 @@
+/* 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 MACVENTURE_OBJECT_H
+#define MACVENTURE_OBJECT_H
+
+#include "macventure/macventure.h"
+
+namespace MacVenture {
+
+struct ContainerHeader {
+	uint32 header;
+};
+
+struct ObjectGroup {
+	uint32 bitOffset; // Actually uint24, but we don't have that
+	uint32 offset;
+};
+
+struct ContainerSubHeader {
+	uint16 numObjects;
+	uint16 *huff;
+	uint8 *lengths;
+	ObjectGroup *groups;
+};
+
+class Object {
+public:
+	Object();
+	~Object();
+};
+
+} // End of namespace MacVenture
+
+#endif
\ No newline at end of file
diff --git a/engines/macventure/world.cpp b/engines/macventure/world.cpp
new file mode 100644
index 0000000000..223541d152
--- /dev/null
+++ b/engines/macventure/world.cpp
@@ -0,0 +1,98 @@
+#include "macventure/world.h"
+
+#include "common/file.h"
+
+namespace MacVenture {
+
+World::World(MacVentureEngine *engine, Common::MacResManager *resMan) {
+	_resourceManager = resMan;	
+	_engine = engine;
+
+	if (!loadStartGameFileName())
+		error("Could not load initial game configuration");
+
+	Common::File saveGameFile;
+	if (!saveGameFile.open(_startGameFileName)) 
+		error("Could not load initial game configuration");
+
+	Common::SeekableReadStream *saveGameRes = saveGameFile.readStream(saveGameFile.size());
+
+	_saveGame = new SaveGame(_engine, saveGameRes);
+
+	delete saveGameRes;
+	saveGameFile.close();		
+}
+
+
+World::~World()	{
+	
+	if (_saveGame)
+		delete _saveGame;
+}
+
+bool World::loadStartGameFileName() {
+	Common::SeekableReadStream *res;
+
+	res = _resourceManager->getResource(MKTAG('S', 'T', 'R', ' '), kStartGameFilenameID);
+	if (!res)
+		return false;
+
+	byte length = res->readByte();
+	char *fileName = new char[length + 1];
+	res->read(fileName, length);
+	fileName[length] = '\0';
+	_startGameFileName = Common::String(fileName, length);
+	_startGameFileName.replace(_startGameFileName.end(), _startGameFileName.end(), ".TXT");
+
+	return true;
+}
+
+// SaveGame
+SaveGame::SaveGame(MacVentureEngine *engine, Common::SeekableReadStream *res) {
+	_groups = Common::Array<AttributeGroup>();
+	loadGroups(engine, res);
+	_globals = Common::Array<uint16>();
+	loadGlobals(engine, res);
+	_text = Common::String();
+	loadText(engine, res);
+}
+
+SaveGame::~SaveGame() {
+}
+
+const Common::Array<AttributeGroup>& MacVenture::SaveGame::getGroups() {
+	return _groups;
+}
+
+const Common::Array<uint16>& MacVenture::SaveGame::getGlobals() {
+	return _globals;
+}
+
+const Common::String & MacVenture::SaveGame::getText() {
+	return _text;
+}
+
+void SaveGame::loadGroups(MacVentureEngine *engine, Common::SeekableReadStream * res) {
+	GlobalSettings settings = engine->getGlobalSettings();
+	for (int i = 0; i < settings.numGroups; ++i) {
+		AttributeGroup g;
+		for (int j = 0; j < settings.numObjects; ++j) 
+			g.push_back(res->readUint16BE());
+		
+		_groups.push_back(g);
+	}
+}
+
+void SaveGame::loadGlobals(MacVentureEngine *engine, Common::SeekableReadStream * res) {
+	GlobalSettings settings = engine->getGlobalSettings();
+	for (int i = 0; i < settings.numGlobals; ++i) {
+		_globals.push_back(res->readUint16BE());
+	}
+}
+
+void SaveGame::loadText(MacVentureEngine *engine, Common::SeekableReadStream * res) {
+	_text = "Placeholder Console Text";
+}
+
+
+} // End of namespace MacVenture
diff --git a/engines/macventure/world.h b/engines/macventure/world.h
new file mode 100644
index 0000000000..0a7eb25526
--- /dev/null
+++ b/engines/macventure/world.h
@@ -0,0 +1,73 @@
+/* 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 MACVENTURE_WORLD_H
+#define MACVENTURE_WORLD_H
+
+#include "macventure/macventure.h"
+
+namespace MacVenture {
+
+typedef Common::Array<uint16> AttributeGroup;
+
+class SaveGame {
+public:
+	SaveGame(MacVentureEngine *engine, Common::SeekableReadStream *res);
+	~SaveGame();
+
+	const Common::Array<AttributeGroup> &getGroups();
+	const Common::Array<uint16> &getGlobals();
+	const Common::String &getText();
+
+private:
+	void loadGroups(MacVentureEngine *engine, Common::SeekableReadStream *res);
+	void loadGlobals(MacVentureEngine *engine, Common::SeekableReadStream *res);
+	void loadText(MacVentureEngine *engine, Common::SeekableReadStream *res);
+
+private:
+	Common::Array<AttributeGroup> _groups;
+	Common::Array<uint16> _globals;
+	Common::String _text;
+};
+
+class World {
+public:
+	World(MacVentureEngine *engine, Common::MacResManager *resMan);
+	~World();
+
+private:
+	bool loadStartGameFileName();
+
+private:
+	MacVentureEngine *_engine;
+	Common::MacResManager *_resourceManager;
+
+	Common::String _startGameFileName;	
+
+	SaveGame *_saveGame;
+
+};
+
+} // End of namespace MacVenture
+
+#endif
+