Initial commit

engines/mutationofjb/mutationofjb.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.h"
+#include "common/error.h"
+#include "common/system.h"
+#include "common/events.h"
+#include "common/fs.h"
+#include "common/savefile.h"
+#include "graphics/screen.h"
+#include "graphics/cursorman.h"
+
+#include "engines/util.h"
+
+#include "mutationofjb/mutationofjb.h"
+#include "mutationofjb/game.h"
+#include "mutationofjb/gamedata.h"
+#include "mutationofjb/gamescreen.h"
+#include "mutationofjb/debug.h"
+#include "mutationofjb/room.h"
+
+namespace MutationOfJB {
+
+MutationOfJBEngine::MutationOfJBEngine(OSystem *syst, const ADGameDescription *gameDesc)
+	: Engine(syst),
+	  _gameDesc(gameDesc),
+	  _screen(nullptr),
+	  _game(nullptr),
+	  _mapObjectId(0),
+	  _cursorState(CURSOR_IDLE),
+	  _currentScreen(nullptr) {
+
+	const Common::FSNode gameDataDir(ConfMan.getPath("path"));
+	SearchMan.addSubDirectoryMatching(gameDataDir, "data");
+}
+
+MutationOfJBEngine::~MutationOfJBEngine() {}
+
+void MutationOfJBEngine::setupCursor() {
+	const uint8 cursor[] = {
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	};
+
+	updateCursorPalette();
+
+	CursorMan.disableCursorPalette(true);
+	CursorMan.pushCursor(cursor, 15, 15, 7, 7, 0);
+	CursorMan.showMouse(true);
+}
+
+void MutationOfJBEngine::updateCursorPalette() {
+	if (_cursorState == CURSOR_OFF) {
+		return;
+	}
+
+	const uint8 white[] = {0xFF, 0xFF, 0xFF};
+	const uint8 blue[] = {0x00, 0xFF, 0xC3};
+
+	_screen->setPalette(_cursorState == CURSOR_ACTIVE ? blue : white, 0xFF, 1);
+}
+
+Graphics::Screen *MutationOfJBEngine::getScreen() const {
+	return _screen;
+}
+
+Game &MutationOfJBEngine::getGame() {
+	return *_game;
+}
+
+void MutationOfJBEngine::setCursorState(CursorState cursorState) {
+	if (_cursorState == cursorState) {
+		return;
+	}
+
+	_cursorState = cursorState;
+	updateCursorPalette();
+}
+
+bool MutationOfJBEngine::hasFeature(Engine::EngineFeature f) const {
+	if (f == kSupportsLoadingDuringRuntime || f == kSupportsSavingDuringRuntime) {
+		return true;
+	}
+
+	return false;
+}
+
+bool MutationOfJBEngine::canLoadGameStateCurrently(Common::U32String *msg) {
+	return _game->loadSaveAllowed();
+}
+
+Common::Error MutationOfJBEngine::loadGameState(int slot) {
+	const Common::String saveName = getSaveStateName(slot);
+	Common::InSaveFile *const saveFile = g_system->getSavefileManager()->openForLoading(saveName);
+	if (!saveFile)
+		return Common::kReadingFailed;
+
+	Common::Serializer sz(saveFile, nullptr);
+
+	SaveHeader saveHdr;
+	saveHdr.sync(sz);
+	_game->getGameData().saveLoadWithSerializer(sz);
+	delete saveFile;
+
+	_game->changeScene(_game->getGameData()._currentScene, _game->getGameData()._partB);
+	_game->getGameScreen().markDirty();
+
+	return Common::kNoError;
+}
+
+bool MutationOfJBEngine::canSaveGameStateCurrently(Common::U32String *msg) {
+	return _game->loadSaveAllowed();
+}
+
+Common::Error MutationOfJBEngine::saveGameState(int slot, const Common::String &desc, bool isAutosave) {
+	Common::OutSaveFile *const saveFile = g_system->getSavefileManager()->openForSaving(
+		getSaveStateName(slot));
+	if (!saveFile)
+		return Common::kWritingFailed;
+
+	Common::Serializer sz(nullptr, saveFile);
+
+	SaveHeader saveHdr;
+	saveHdr._description = desc;
+	saveHdr.sync(sz);
+	_game->getGameData().saveLoadWithSerializer(sz);
+	saveFile->finalize();
+	delete saveFile;
+
+	return Common::kNoError;
+}
+
+const ADGameDescription *MutationOfJBEngine::getGameDescription() const {
+	return _gameDesc;
+}
+
+Common::Error MutationOfJBEngine::run() {
+	initGraphics(320, 200);
+
+	setDebugger(new Console(this));
+	_screen = new Graphics::Screen();
+	_game = new Game(this);
+	_currentScreen = &_game->getGameScreen();
+
+	setupCursor();
+
+	if (ConfMan.hasKey("save_slot")) {
+		const Common::Error err = loadGameState(ConfMan.getInt("save_slot"));
+		if (err.getCode() != Common::kNoError)
+			return err;
+	} else {
+		_game->changeScene(13, false); // Initial scene.
+	}
+
+	while (!shouldQuit()) {
+		Common::Event event;
+		while (_eventMan->pollEvent(event)) {
+			switch (event.type) {
+			case Common::EVENT_KEYDOWN: {
+				if (event.kbd.keycode == Common::KEYCODE_F5 && event.kbd.hasFlags(0)) {
+					openMainMenuDialog();
+				}
+				break;
+			}
+			default:
+				break;
+			}
+
+			if (_currentScreen)
+				_currentScreen->handleEvent(event);
+		}
+
+		_game->update();
+		if (_currentScreen)
+			_currentScreen->update();
+
+		_system->delayMillis(10);
+		_screen->update();
+	}
+
+	return Common::kNoError;
+}
+
+bool SaveHeader::sync(Common::Serializer &sz) {
+	const uint32 SAVE_MAGIC_NUMBER = MKTAG('M', 'O', 'J', 'B');
+	const uint32 SAVE_FILE_VERSION = 1;
+
+	if (sz.isLoading()) {
+		uint32 magic = 0;
+		sz.syncAsUint32BE(magic);
+		if (magic != SAVE_MAGIC_NUMBER) {
+			warning("Invalid save");
+			return false;
+		}
+	} else {
+		uint32 magic = SAVE_MAGIC_NUMBER;
+		sz.syncAsUint32BE(magic);
+	}
+
+	sz.syncVersion(SAVE_FILE_VERSION);
+	sz.syncString(_description);
+
+	return true;
+}
+
+}