/**
* This constructor initializes the engine by initializing its systems, subsystems and managers.
* It also verifies that some required systems are up and running after they have been
* initialized.
*
* @param subsystems Typical subsystems lists contain graphics, timer, audio and input subsystems.
*/
public TerasologyEngine(TimeSubsystem timeSubsystem, Collection<EngineSubsystem> subsystems) {
this.rootContext = new ContextImpl();
this.timeSubsystem = timeSubsystem;
/*
* We can't load the engine without core registry yet.
* e.g. the statically created MaterialLoader needs the CoreRegistry to get the AssetManager.
* And the engine loads assets while it gets created.
*/
// TODO: Remove
CoreRegistry.setContext(rootContext);
this.allSubsystems = Queues.newArrayDeque();
this.allSubsystems.add(new ConfigurationSubsystem());
this.allSubsystems.add(timeSubsystem);
this.allSubsystems.addAll(subsystems);
this.allSubsystems.add(new ThreadManagerSubsystem());
this.allSubsystems.add(new MonitoringSubsystem());
this.allSubsystems.add(new PhysicsSubsystem());
this.allSubsystems.add(new CommandSubsystem());
this.allSubsystems.add(new NetworkSubsystem());
this.allSubsystems.add(new WorldGenerationSubsystem());
this.allSubsystems.add(new GameSubsystem());
this.allSubsystems.add(new I18nSubsystem());
}
private void initialize() {
Thread.currentThread().setPriority(Thread.MAX_PRIORITY);
Stopwatch totalInitTime = Stopwatch.createStarted();
try {
logger.info("Initializing Terasology...");
logEnvironmentInfo();
// TODO: Need to get everything thread safe and get rid of the concept of "GameThread" as much
// as possible.
GameThread.setToCurrentThread();
preInitSubsystems();
initManagers();
initSubsystems();
changeStatus(TerasologyEngineStatus.INITIALIZING_ASSET_MANAGEMENT);
initAssets();
EnvironmentSwitchHandler environmentSwitcher = new EnvironmentSwitchHandler();
rootContext.put(EnvironmentSwitchHandler.class, environmentSwitcher);
environmentSwitcher.handleSwitchToGameEnvironment(rootContext);
postInitSubsystems();
verifyInitialisation();
/**
* Prevent objects being put in engine context after init phase. Engine states should
* use/create a child context.
*/
CoreRegistry.setContext(null);
} catch (RuntimeException e) {
logger.error("Failed to initialise Terasology", e);
cleanup();
throw e;
}
double seconds = 0.001 * totalInitTime.elapsed(TimeUnit.MILLISECONDS);
logger.info("Initialization completed in {}sec.", String.format("%.2f", seconds));
}