Initial commit

engines/mm/mm1/mm1.cpp

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+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "common/scummsys.h"
+#include "common/config-manager.h"
+#include "common/debug-channels.h"
+#include "common/file.h"
+#include "common/system.h"
+#include "common/text-to-speech.h"
+#include "common/translation.h"
+#include "engines/util.h"
+#include "graphics/paletteman.h"
+#include "mm/mm1/mm1.h"
+#include "mm/mm1/console.h"
+#include "mm/mm1/gfx/gfx.h"
+#include "mm/mm1/views/game.h"
+#include "mm/mm1/views_enh/game.h"
+#include "mm/shared/xeen/cc_archive.h"
+
+namespace MM {
+namespace MM1 {
+
+#define SAVEGAME_VERSION 1
+
+MM1Engine *g_engine = nullptr;
+
+MM1Engine::MM1Engine(OSystem *syst, const MightAndMagicGameDescription *gameDesc)
+		: MMEngine(syst, gameDesc), Events(gameDesc->features & GF_ENHANCED) {
+	g_engine = this;
+}
+
+MM1Engine::~MM1Engine() {
+	g_engine = nullptr;
+	delete _sound;
+}
+
+Common::Error MM1Engine::run() {
+	if (_gameDescription->features & GF_GFX_PACK) {
+		GUIErrorMessage(_("You cannot run the game directly from the Graphics Overhaul Mod. "
+			"Instead, it will automatically be available if you detect the original game "
+			"and select Enhanced mode."));
+		return Common::kNoError;
+	}
+
+	// Initialize graphics mode
+	initGraphics(320, 200);
+
+	if (isEnhanced()) {
+		if (!setupEnhanced())
+			return Common::kNoError;
+	} else {
+		setupNormal();
+	}
+
+	// Setup mixer
+	_sound = new Sound(_mixer);
+	syncSoundSettings();
+
+#ifdef USE_TTS
+	Common::TextToSpeechManager *ttsMan = g_system->getTextToSpeechManager();
+	if (ttsMan != nullptr) {
+		ttsMan->enable(ConfMan.getBool("tts_enabled"));
+		ttsMan->setLanguage(ConfMan.get("language"));
+	}
+#endif
+
+	// Setup console
+	setDebugger(new Console());
+	if (gDebugLevel > 0)
+		// TODO: Remove flag once everything is tested
+		g_globals->_encountersOn = false;
+
+	// Load globals
+	if (!_globals.load(isEnhanced()))
+		return Common::kNoError;
+
+	runGame();
+	return Common::kNoError;
+}
+
+void MM1Engine::syncSoundSettings() {
+	Engine::syncSoundSettings();
+
+	if (_sound)
+		_sound->updateSoundSettings();
+}
+
+bool MM1Engine::isEnhanced() const {
+	return (_gameDescription->features & GF_ENHANCED) != 0;
+}
+
+void MM1Engine::setupNormal() {
+	Gfx::GFX::setEgaPalette();
+}
+
+bool MM1Engine::setupEnhanced() {
+	if (!Common::File::exists("xeen.cc")) {
+		GUIErrorMessage(_(
+			"In order to run in Enhanced mode,  please copy xeen.cc "
+			"from a copy of World of Xeen\n"
+			"or Clouds of Xeen to your Might and Magic 1 game folder"
+		));
+
+		return false;
+	}
+
+	// Add the Xeen cc archives
+	Shared::Xeen::CCArchive *xeenCC = new Shared::Xeen::CCArchive(
+		"xeen.cc", "xeen", true);
+	SearchMan.add("xeen", xeenCC);
+
+	// Load the palette
+	Common::File f;
+	if (!f.open("mm4.pal"))
+		error("Could not load palette");
+
+	// Load the Xeen palette
+	byte pal[Graphics::PALETTE_SIZE];
+	for (int i = 0; i < Graphics::PALETTE_SIZE; ++i)
+		pal[i] = f.readByte() << 2;
+	g_system->getPaletteManager()->setPalette(pal, 0, Graphics::PALETTE_COUNT);
+	Gfx::GFX::findPalette(pal);
+
+	return true;
+}
+
+bool MM1Engine::canSaveGameStateCurrently(Common::U32String *msg) {
+	if (!g_events)
+		return false;
+
+	UIElement *view = g_events->focusedView();
+	return dynamic_cast<Views::Game *>(view) != nullptr ||
+		dynamic_cast<ViewsEnh::Game *>(view) != nullptr;
+}
+
+bool MM1Engine::canLoadGameStateCurrently(Common::U32String *msg) {
+	if (!g_events)
+		return false;
+
+	// Loading savegames can be done in any view, since we can
+	// just remove them all and add the game view
+	return true;
+}
+
+Common::Error MM1Engine::synchronizeSave(Common::Serializer &s) {
+	// Get/set the version
+	byte version = SAVEGAME_VERSION;
+	s.syncAsByte(version);
+	if (version > SAVEGAME_VERSION)
+		return Common::kReadingFailed;
+	s.setVersion(version);
+
+	// If we're loading a savegame, switch to the game view
+	if (s.isLoading()) {
+		g_events->replaceView("Game", true);
+	}
+
+	// Sync globals
+	g_globals->synchronize(s);
+
+	return Common::kNoError;
+}
+
+} // namespace MM1
+} // namespace MM