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engines/ultima/ultima0/ultima0.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/system.h"
+#include "common/savefile.h"
+#include "engines/util.h"
+#include "graphics/paletteman.h"
+#include "ultima/ultima0/ultima0.h"
+#include "ultima/ultima0/console.h"
+
+namespace Ultima {
+namespace Ultima0 {
+
+static const byte PALETTE[][3] = {
+	{ 0, 0, 0 },		// Black
+	{ 0, 0, 255 },		// Blue
+	{ 0, 255, 0 },		// Green,
+	{ 0, 255, 255 },	// Cyan
+	{ 255, 0, 0 },		// Red
+	{ 255, 0, 255 },	// Purple
+	{ 255, 255, 0 },	// Yellow
+	{ 255, 255, 255 },	// White
+	{ 255, 0, 128 },	// Rose
+	{ 80, 80, 255 },	// Violet
+	{ 180, 180, 180 },	// Grey
+	{ 255, 80, 80 }		// Orange
+};
+
+
+Ultima0Engine *g_engine;
+
+Ultima0Engine::Ultima0Engine(OSystem *syst, const Ultima::UltimaGameDescription *gameDesc) :
+		Engine(syst), /*_gameDescription(gameDesc), */_randomSource("Ultima0"),
+		_palette(&PALETTE[0][0], sizeof(PALETTE) / 3) {
+	g_engine = this;
+}
+
+Ultima0Engine::~Ultima0Engine() {
+	stopMidi();
+}
+
+Common::Error Ultima0Engine::run() {
+	// Initialize the graphics
+	initGraphics(DEFAULT_SCX, DEFAULT_SCY);
+	g_system->getPaletteManager()->setPalette(_palette);
+
+	// Set the debugger console
+	setDebugger(new Console());
+	MetaEngine::setKeybindingMode(KBMODE_MINIMAL);
+
+	// Play the game
+	runGame();
+
+	return Common::kNoError;
+}
+
+bool Ultima0Engine::hasFeature(EngineFeature f) const {
+	return (f == kSupportsReturnToLauncher) ||
+		(f == kSupportsLoadingDuringRuntime) ||
+		(f == kSupportsSavingDuringRuntime);
+
+}
+
+bool Ultima0Engine::canSaveGameStateCurrently(Common::U32String *msg) {
+	auto *view = focusedView();
+	if (!view)
+		return false;
+
+	Common::String name = focusedView()->getName();
+	return name == "WorldMap" || name == "Dungeon";
+}
+
+Common::Error Ultima0Engine::loadGameStream(Common::SeekableReadStream *stream) {
+	Common::Serializer s(stream, nullptr);
+	syncSavegame(s);
+
+	stopMidi();
+	replaceView(_player._level == 0 ? "WorldMap" : "Dungeon");
+
+	return Common::kNoError;
+}
+
+Common::Error Ultima0Engine::saveGameStream(Common::WriteStream *stream, bool isAutosave) {
+	Common::Serializer s(nullptr, stream);
+	syncSavegame(s);
+	return Common::kNoError;
+}
+
+void Ultima0Engine::syncSavegame(Common::Serializer &s) {
+	_player.synchronize(s);
+	_worldMap.synchronize(s);
+	_dungeon.synchronize(s);
+}
+
+bool Ultima0Engine::savegamesExist() const {
+	Common::String slotName = getSaveStateName(1);
+	Common::InSaveFile *saveFile = g_system->getSavefileManager()->openForLoading(slotName);
+	bool result = saveFile != nullptr;
+
+	delete saveFile;
+	return result;
+}
+
+void Ultima0Engine::playMidi(const char *name) {
+	stopMidi();
+
+	_music = new MusicPlayer(name);
+	_music->playSMF(true);
+}
+
+void Ultima0Engine::stopMidi() {
+	if (_music) {
+		_music->stop();
+		delete _music;
+		_music = nullptr;
+	}
+}
+
+} // namespace Ultima0
+} // namespace Ultima