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552
engines/stark/stark.cpp
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552
engines/stark/stark.cpp
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/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "engines/stark/stark.h"
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#include "engines/stark/console.h"
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#include "engines/stark/debug.h"
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#include "engines/stark/resources/level.h"
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#include "engines/stark/resources/location.h"
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#include "engines/stark/savemetadata.h"
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#include "engines/stark/scene.h"
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#include "engines/stark/services/userinterface.h"
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#include "engines/stark/services/archiveloader.h"
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#include "engines/stark/services/dialogplayer.h"
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#include "engines/stark/services/diary.h"
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#include "engines/stark/services/fontprovider.h"
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#include "engines/stark/services/gameinterface.h"
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#include "engines/stark/services/global.h"
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#include "engines/stark/services/resourceprovider.h"
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#include "engines/stark/services/services.h"
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#include "engines/stark/services/stateprovider.h"
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#include "engines/stark/services/staticprovider.h"
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#include "engines/stark/services/settings.h"
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#include "engines/stark/services/gamechapter.h"
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#include "engines/stark/services/gamemessage.h"
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#include "engines/stark/gfx/driver.h"
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#include "audio/mixer.h"
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#include "common/config-manager.h"
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#include "common/debug-channels.h"
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#include "common/events.h"
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#include "common/fs.h"
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#include "common/random.h"
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#include "common/savefile.h"
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#include "common/system.h"
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#include "common/translation.h"
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#include "engines/advancedDetector.h"
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#include "graphics/renderer.h"
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#include "graphics/framelimiter.h"
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#include "gui/error.h"
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#include "gui/message.h"
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namespace Stark {
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StarkEngine::StarkEngine(OSystem *syst, const ADGameDescription *gameDesc) :
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Engine(syst),
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_frameLimiter(nullptr),
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_gameDescription(gameDesc),
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_lastClickTime(0) {
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addModsToSearchPath();
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}
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StarkEngine::~StarkEngine() {
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delete StarkServices::instance().gameInterface;
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delete StarkServices::instance().diary;
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delete StarkServices::instance().dialogPlayer;
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delete StarkServices::instance().randomSource;
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delete StarkServices::instance().scene;
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delete StarkServices::instance().staticProvider;
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delete StarkServices::instance().resourceProvider;
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delete StarkServices::instance().global;
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delete StarkServices::instance().stateProvider;
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delete StarkServices::instance().archiveLoader;
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delete StarkServices::instance().userInterface;
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delete StarkServices::instance().fontProvider;
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delete StarkServices::instance().settings;
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delete StarkServices::instance().gameChapter;
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delete StarkServices::instance().gameMessage;
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delete StarkServices::instance().gfx;
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StarkServices::destroy();
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delete _frameLimiter;
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}
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Common::Error StarkEngine::run() {
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setDebugger(new Console());
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_frameLimiter = new Graphics::FrameLimiter(_system, ConfMan.getInt("engine_speed"));
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// Get the screen prepared
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Gfx::Driver *gfx = Gfx::Driver::create();
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if (gfx == nullptr)
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return Common::kNoError;
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gfx->init();
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if (StarkSettings->isAssetsModEnabled() && !gfx->supportsModdedAssets()) {
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GUI::displayErrorDialog(_("Software renderer does not support modded assets"));
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}
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checkRecommendedDatafiles();
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// Setup the public services
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StarkServices &services = StarkServices::instance();
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services.gfx = gfx;
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services.archiveLoader = new ArchiveLoader();
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services.stateProvider = new StateProvider();
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services.global = new Global();
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services.resourceProvider = new ResourceProvider(services.archiveLoader, services.stateProvider, services.global);
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services.staticProvider = new StaticProvider(services.archiveLoader);
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services.randomSource = new Common::RandomSource("stark");
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services.fontProvider = new FontProvider();
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services.scene = new Scene(services.gfx);
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services.dialogPlayer = new DialogPlayer();
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services.diary = new Diary();
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services.gameInterface = new GameInterface();
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services.userInterface = new UserInterface(this, services.gfx);
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services.settings = new Settings(_mixer, _gameDescription);
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services.gameChapter = new GameChapter();
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services.gameMessage = new GameMessage();
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// Load global resources
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services.staticProvider->init();
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services.fontProvider->initFonts();
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// Apply the sound volume settings
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syncSoundSettings();
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// Initialize the UI
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services.userInterface->init();
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// Load through ScummVM launcher
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if (ConfMan.hasKey("save_slot")) {
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Common::Error loadError = loadGameState(ConfMan.getInt("save_slot"));
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if (loadError.getCode() != Common::kNoError) {
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return loadError;
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}
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}
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// Start running
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mainLoop();
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services.staticProvider->shutdown();
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services.resourceProvider->shutdown();
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return Common::kNoError;
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}
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void StarkEngine::mainLoop() {
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while (!shouldQuit()) {
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_frameLimiter->startFrame();
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processEvents();
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if (StarkUserInterface->shouldExit())
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break;
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if (StarkResourceProvider->hasLocationChangeRequest()) {
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StarkGlobal->setNormalSpeed();
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StarkResourceProvider->performLocationChange();
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}
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StarkUserInterface->doQueuedScreenChange();
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updateDisplayScene();
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// Swap buffers
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_frameLimiter->delayBeforeSwap();
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StarkGfx->flipBuffer();
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}
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}
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void StarkEngine::processEvents() {
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Common::Event e;
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while (g_system->getEventManager()->pollEvent(e)) {
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// Handle any buttons, keys and joystick operations
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if (isPaused()) {
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// Only pressing key P to resume the game is allowed when the game is paused
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if (e.type == Common::EVENT_CUSTOM_ENGINE_ACTION_START && e.customType == kActionPause) {
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_gamePauseToken.clear();
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}
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continue;
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}
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if (e.type == Common::EVENT_KEYDOWN || e.type == Common::EVENT_CUSTOM_ENGINE_ACTION_START) {
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if (e.kbdRepeat) {
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continue;
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}
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if (e.customType == kActionPause) {
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if (StarkUserInterface->isInGameScreen()) {
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_gamePauseToken = pauseEngine();
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debug("The game is paused");
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}
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} else {
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StarkUserInterface->handleKeyPress(e.kbd);
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StarkUserInterface->handleActions(e.customType);
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}
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} else if (e.type == Common::EVENT_LBUTTONUP) {
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StarkUserInterface->handleMouseUp();
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} else if (e.type == Common::EVENT_MOUSEMOVE) {
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StarkUserInterface->handleMouseMove(e.mouse);
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} else if (e.type == Common::EVENT_LBUTTONDOWN) {
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StarkUserInterface->handleClick();
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if (_system->getMillis() - _lastClickTime < _doubleClickDelay) {
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StarkUserInterface->handleDoubleClick();
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}
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_lastClickTime = _system->getMillis();
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} else if (e.type == Common::EVENT_RBUTTONDOWN) {
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StarkUserInterface->handleRightClick();
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} else if (e.type == Common::EVENT_SCREEN_CHANGED) {
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onScreenChanged();
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}
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}
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}
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void StarkEngine::updateDisplayScene() {
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if (StarkGlobal->isFastForward()) {
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// The original engine was frame limited to 30 fps.
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// Set the frame duration to 1000 / 30 ms so that fast forward
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// skips the same amount of simulated time as the original.
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StarkGlobal->setMillisecondsPerGameloop(33);
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} else {
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StarkGlobal->setMillisecondsPerGameloop(_frameLimiter->getLastFrameDuration());
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}
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// Clear the screen
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StarkGfx->clearScreen();
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// Only update the world resources when on the game screen
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if (StarkUserInterface->isInGameScreen() && !isPaused()) {
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int frames = 0;
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do {
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// Update the game resources
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StarkGlobal->getLevel()->onGameLoop();
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StarkGlobal->getCurrent()->getLevel()->onGameLoop();
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StarkGlobal->getCurrent()->getLocation()->onGameLoop();
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frames++;
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// When the game is in fast forward mode, update
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// the game resources for multiple frames,
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// but render only once.
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} while (StarkGlobal->isFastForward() && frames < 100);
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StarkGlobal->setNormalSpeed();
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}
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// Render the current scene
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// Update the UI state before displaying the scene
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StarkUserInterface->onGameLoop();
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// Tell the UI to render, and update implicitly, if this leads to new mouse-over events.
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StarkUserInterface->render();
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}
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static bool modsCompare(const Common::FSNode &a, const Common::FSNode &b) {
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return a.getName() < b.getName();
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}
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void StarkEngine::addModsToSearchPath() const {
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const Common::FSNode gameDataDir(ConfMan.getPath("path"));
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const Common::FSNode modsDir = gameDataDir.getChild("mods");
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if (modsDir.exists()) {
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Common::FSList list;
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if (!modsDir.getChildren(list))
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return;
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Common::sort(list.begin(), list.end(), modsCompare);
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for (uint i = 0; i < list.size(); i++) {
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SearchMan.addDirectory("mod_" + list[i].getName(), list[i], 0, 4);
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}
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}
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}
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void StarkEngine::checkRecommendedDatafiles() {
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ConfMan.registerDefault("warn_about_missing_files", true);
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if (!ConfMan.getBool("warn_about_missing_files")) {
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return;
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}
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Common::String message = _("You are missing recommended data files:");
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const Common::FSNode gameDataDir(ConfMan.getPath("path"));
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Common::FSNode fontsDir = gameDataDir.getChild("fonts");
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if (!fontsDir.isDirectory()) {
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fontsDir = gameDataDir.getChild("Fonts"); // FSNode is case sensitive
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}
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if (!fontsDir.isDirectory()) {
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fontsDir = gameDataDir.getChild("FONTS");
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}
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bool missingFiles = false;
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if (!fontsDir.isDirectory()) {
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message += "\n\n";
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message += _("The 'fonts' folder is required to experience the text style as it was designed. "
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"The Steam release is known to be missing it. You can get the fonts from the demo version of the game.");
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missingFiles = true;
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}
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if (!SearchMan.hasFile("gui.ini")) {
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message += "\n\n";
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message += _("'gui.ini' is recommended to get proper font settings for the game localization.");
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missingFiles = true;
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}
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if (!SearchMan.hasFile("language.ini")) {
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message += "\n\n";
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message += _("'language.ini' is recommended to get localized confirmation dialogs.");
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missingFiles = true;
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}
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if (!SearchMan.hasFile("game.exe") && !SearchMan.hasFile("game.dll")) {
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message += "\n\n";
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message += _("'game.exe' is recommended to get styled confirmation dialogs.");
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missingFiles = true;
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}
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if (missingFiles) {
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warning("%s", message.c_str());
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GUI::MessageDialog dialog(message);
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dialog.runModal();
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}
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}
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bool StarkEngine::hasFeature(EngineFeature f) const {
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// The TinyGL renderer does not support arbitrary resolutions for now
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Common::String rendererConfig = ConfMan.get("renderer");
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Graphics::RendererType desiredRendererType = Graphics::Renderer::parseTypeCode(rendererConfig);
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Graphics::RendererType matchingRendererType = Graphics::Renderer::getBestMatchingAvailableType(desiredRendererType,
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#if defined(USE_OPENGL_GAME)
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Graphics::kRendererTypeOpenGL |
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#endif
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#if defined(USE_OPENGL_SHADERS)
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Graphics::kRendererTypeOpenGLShaders |
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#endif
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#if defined(USE_TINYGL)
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Graphics::kRendererTypeTinyGL |
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#endif
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0);
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bool softRenderer = matchingRendererType == Graphics::kRendererTypeTinyGL;
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return
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(f == kSupportsLoadingDuringRuntime) ||
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(f == kSupportsSavingDuringRuntime) ||
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(f == kSupportsArbitraryResolutions && !softRenderer) ||
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(f == kSupportsReturnToLauncher);
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}
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bool StarkEngine::canLoadGameStateCurrently(Common::U32String *msg) {
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return !StarkUserInterface->isInSaveLoadMenuScreen();
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}
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Common::Error StarkEngine::loadGameState(int slot) {
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// Open the save file
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Common::String filename = formatSaveName(_targetName.c_str(), slot);
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Common::InSaveFile *save = _saveFileMan->openForLoading(filename);
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if (!save) {
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return Common::kReadingFailed;
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}
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StateReadStream stream(save);
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// Read the header
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SaveMetadata metadata;
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Common::ErrorCode metadataErrorCode = metadata.read(&stream, filename);
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if (metadataErrorCode != Common::kNoError) {
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return metadataErrorCode;
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}
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// Reset the UI
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StarkUserInterface->skipFMV();
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StarkUserInterface->clearLocationDependentState();
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StarkUserInterface->setInteractive(true);
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StarkUserInterface->changeScreen(Screen::kScreenGame);
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StarkUserInterface->inventoryOpen(false);
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StarkUserInterface->restoreScreenHistory();
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// Clear the previous world resources
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StarkResourceProvider->shutdown();
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if (metadata.version >= 9) {
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metadata.skipGameScreenThumbnail(&stream);
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}
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// Read the resource trees state
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StarkStateProvider->readStateFromStream(&stream, metadata.version);
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// Read the diary state
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StarkDiary->readStateFromStream(&stream, metadata.version);
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// Read the location stack
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StarkResourceProvider->readLocationStack(&stream, metadata.version);
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if (stream.eos()) {
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warning("Unexpected end of file reached when reading '%s'", filename.c_str());
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return Common::kReadingFailed;
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}
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if (stream.err()) {
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warning("An error occurred when reading '%s'", filename.c_str());
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return Common::kReadingFailed;
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}
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// Initialize the world resources with the loaded state
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StarkResourceProvider->initGlobal();
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StarkResourceProvider->setShouldRestoreCurrentState();
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StarkResourceProvider->requestLocationChange(metadata.levelIndex, metadata.locationIndex);
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if (metadata.version >= 9) {
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setTotalPlayTime(metadata.totalPlayTime);
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}
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return Common::kNoError;
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}
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bool StarkEngine::canSaveGameStateCurrently(Common::U32String *msg) {
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// Disallow saving when there is no level loaded or when a script is running
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// or when the save & load menu is currently displayed
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return StarkGlobal->getLevel() && StarkGlobal->getCurrent() && StarkUserInterface->isInteractive() && !StarkUserInterface->isInSaveLoadMenuScreen();
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}
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Common::Error StarkEngine::saveGameState(int slot, const Common::String &desc, bool isAutosave) {
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// Ensure the state store is up to date
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StarkResourceProvider->commitActiveLocationsState();
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// Open the save file
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Common::String filename = formatSaveName(_targetName.c_str(), slot);
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Common::OutSaveFile *save = _saveFileMan->openForSaving(filename);
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if (!save) {
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return Common::kCreatingFileFailed;
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}
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bool reuseThumbnail = StarkUserInterface->getGameWindowThumbnail() != nullptr;
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if (!reuseThumbnail) {
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StarkUserInterface->saveGameScreenThumbnail();
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}
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// 1. Write the header
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SaveMetadata metadata;
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metadata.description = desc;
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metadata.version = StateProvider::kSaveVersion;
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metadata.levelIndex = StarkGlobal->getCurrent()->getLevel()->getIndex();
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metadata.locationIndex = StarkGlobal->getCurrent()->getLocation()->getIndex();
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metadata.totalPlayTime = getTotalPlayTime();
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metadata.gameWindowThumbnail = StarkUserInterface->getGameWindowThumbnail();
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metadata.isAutoSave = isAutosave;
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TimeDate timeDate;
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_system->getTimeAndDate(timeDate);
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metadata.setSaveTime(timeDate);
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||||
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metadata.write(save);
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metadata.writeGameScreenThumbnail(save);
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||||
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||||
// 2. Write the resource trees state
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StarkStateProvider->writeStateToStream(save);
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||||
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// 3. Write the diary state
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StarkDiary->writeStateToStream(save);
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// 4. Write the location stack
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StarkResourceProvider->writeLocationStack(save);
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||||
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||||
if (!reuseThumbnail) {
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||||
StarkUserInterface->freeGameScreenThumbnail();
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||||
}
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||||
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if (save->err()) {
|
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warning("An error occurred when writing '%s'", filename.c_str());
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||||
delete save;
|
||||
return Common::kWritingFailed;
|
||||
}
|
||||
|
||||
delete save;
|
||||
|
||||
return Common::kNoError;
|
||||
}
|
||||
|
||||
Common::String StarkEngine::formatSaveName(const char *target, int slot) {
|
||||
return Common::String::format("%s-%03d.tlj", target, slot);
|
||||
}
|
||||
|
||||
Common::StringArray StarkEngine::listSaveNames(const char *target) {
|
||||
Common::String pattern = Common::String::format("%s-###.tlj", target);
|
||||
return g_system->getSavefileManager()->listSavefiles(pattern);
|
||||
}
|
||||
|
||||
int StarkEngine::getSaveNameSlot(const char *target, const Common::String &saveName) {
|
||||
int targetLen = strlen(target);
|
||||
|
||||
char slot[4];
|
||||
slot[0] = saveName[targetLen + 1];
|
||||
slot[1] = saveName[targetLen + 2];
|
||||
slot[2] = saveName[targetLen + 3];
|
||||
slot[3] = '\0';
|
||||
|
||||
return atoi(slot);
|
||||
}
|
||||
|
||||
void StarkEngine::pauseEngineIntern(bool pause) {
|
||||
Engine::pauseEngineIntern(pause);
|
||||
|
||||
// This function may be called when an error occurs before the engine is fully initialized
|
||||
if (StarkGlobal && StarkGlobal->getLevel() && StarkGlobal->getCurrent()) {
|
||||
StarkGlobal->getLevel()->onEnginePause(pause);
|
||||
StarkGlobal->getCurrent()->getLevel()->onEnginePause(pause);
|
||||
StarkGlobal->getCurrent()->getLocation()->onEnginePause(pause);
|
||||
}
|
||||
|
||||
if (_frameLimiter) {
|
||||
_frameLimiter->pause(pause);
|
||||
}
|
||||
|
||||
// Grab a game screen thumbnail in case we need one when writing a save file
|
||||
if (StarkUserInterface && StarkUserInterface->isInGameScreen()) {
|
||||
if (pause) {
|
||||
StarkUserInterface->saveGameScreenThumbnail();
|
||||
} else {
|
||||
StarkUserInterface->freeGameScreenThumbnail();
|
||||
}
|
||||
}
|
||||
|
||||
// The user may have moved the mouse or resized the window while the engine was paused
|
||||
if (!pause && StarkUserInterface) {
|
||||
onScreenChanged();
|
||||
StarkUserInterface->handleMouseMove(_eventMan->getMousePos());
|
||||
}
|
||||
}
|
||||
|
||||
void StarkEngine::onScreenChanged() const {
|
||||
bool changed = StarkGfx->computeScreenViewport();
|
||||
if (changed) {
|
||||
StarkFontProvider->initFonts();
|
||||
StarkUserInterface->onScreenChanged();
|
||||
}
|
||||
}
|
||||
|
||||
uint32 StarkEngine::getGameFlags() const { return _gameDescription->flags; }
|
||||
|
||||
} // End of namespace Stark
|
||||
Reference in New Issue
Block a user