Application class represents an instance of a
- * real-time 3D rendering jME application.
- *
- * An Application provides all the tools that are commonly used in jME3
- * applications.
- *
- * jME3 applications *SHOULD NOT EXTEND* this class but extend {@link com.jme3.appSimpleApplication} instead.
- *
- */
-public class Application implements SystemListener {
-
- private static final Logger logger = Logger.getLogger(Application.class.getName());
-
- protected AssetManager assetManager;
-
- protected AudioRenderer audioRenderer;
- protected Renderer renderer;
- protected RenderManager renderManager;
- protected ViewPort viewPort;
- protected ViewPort guiViewPort;
-
- protected JmeContext context;
- protected AppSettings settings;
- protected Timer timer = new NanoTimer();
- protected Camera cam;
- protected Listener listener;
-
- protected boolean inputEnabled = true;
- protected boolean pauseOnFocus = true;
- protected float speed = 1f;
- protected boolean paused = false;
- protected MouseInput mouseInput;
- protected KeyInput keyInput;
- protected JoyInput joyInput;
- protected TouchInput touchInput;
- protected InputManager inputManager;
- protected AppStateManager stateManager;
-
- private final ConcurrentLinkedQueueApplication.
- */
- public Application(){
- initStateManager();
- }
-
- /**
- * Returns true if pause on lost focus is enabled, false otherwise.
- *
- * @return true if pause on lost focus is enabled
- *
- * @see #setPauseOnLostFocus(boolean)
- */
- public boolean isPauseOnLostFocus() {
- return pauseOnFocus;
- }
-
- /**
- * Enable or disable pause on lost focus.
- * - * By default, pause on lost focus is enabled. - * If enabled, the application will stop updating - * when it loses focus or becomes inactive (e.g. alt-tab). - * For online or real-time applications, this might not be preferable, - * so this feature should be set to disabled. For other applications, - * it is best to keep it on so that CPU usage is not used when - * not necessary. - * - * @param pauseOnLostFocus True to enable pause on lost focus, false - * otherwise. - */ - public void setPauseOnLostFocus(boolean pauseOnLostFocus) { - this.pauseOnFocus = pauseOnLostFocus; - } - - @Deprecated - public void setAssetManager(AssetManager assetManager){ - if (this.assetManager != null) - throw new IllegalStateException("Can only set asset manager" - + " before initialization."); - - this.assetManager = assetManager; - } - - private void initAssetManager(){ - if (settings != null){ - String assetCfg = settings.getString("AssetConfigURL"); - if (assetCfg != null){ - URL url = null; - try { - url = new URL(assetCfg); - } catch (MalformedURLException ex) { - } - if (url == null) { - url = Application.class.getClassLoader().getResource(assetCfg); - if (url == null) { - logger.log(Level.SEVERE, "Unable to access AssetConfigURL in asset config:{0}", assetCfg); - return; - } - } - assetManager = JmeSystem.newAssetManager(url); - } - } - if (assetManager == null){ - assetManager = JmeSystem.newAssetManager( - Thread.currentThread().getContextClassLoader() - .getResource("com/jme3/asset/Desktop.cfg")); - } - } - - /** - * Set the display settings to define the display created. - *
- * Examples of display parameters include display pixel width and height, - * color bit depth, z-buffer bits, anti-aliasing samples, and update frequency. - * If this method is called while the application is already running, then - * {@link #restart() } must be called to apply the settings to the display. - * - * @param settings The settings to set. - */ - public void setSettings(AppSettings settings){ - this.settings = settings; - if (context != null && settings.useInput() != inputEnabled){ - // may need to create or destroy input based - // on settings change - inputEnabled = !inputEnabled; - if (inputEnabled){ - initInput(); - }else{ - destroyInput(); - } - }else{ - inputEnabled = settings.useInput(); - } - } - - /** - * Sets the Timer implementation that will be used for calculating - * frame times. By default, Application will use the Timer as returned - * by the current JmeContext implementation. - */ - public void setTimer(Timer timer){ - this.timer = timer; - - if (timer != null) { - timer.reset(); - } - - if (renderManager != null) { - renderManager.setTimer(timer); - } - } - - public Timer getTimer(){ - return timer; - } - - private void initDisplay(){ - // aquire important objects - // from the context - settings = context.getSettings(); - - // Only reset the timer if a user has not already provided one - if (timer == null) { - timer = context.getTimer(); - } - - renderer = context.getRenderer(); - } - - private void initAudio(){ - if (settings.getAudioRenderer() != null && context.getType() != Type.Headless){ - audioRenderer = JmeSystem.newAudioRenderer(settings); - audioRenderer.initialize(); - AudioContext.setAudioRenderer(audioRenderer); - - listener = new Listener(); - audioRenderer.setListener(listener); - } - } - - /** - * Creates the camera to use for rendering. Default values are perspective - * projection with 45° field of view, with near and far values 1 and 1000 - * units respectively. - */ - private void initCamera(){ - cam = new Camera(settings.getWidth(), settings.getHeight()); - - cam.setFrustumPerspective(45f, (float)cam.getWidth() / cam.getHeight(), 1f, 1000f); - cam.setLocation(new Vector3f(0f, 0f, 10f)); - cam.lookAt(new Vector3f(0f, 0f, 0f), Vector3f.UNIT_Y); - - renderManager = new RenderManager(renderer); - //Remy - 09/14/2010 setted the timer in the renderManager - renderManager.setTimer(timer); - viewPort = renderManager.createMainView("Default", cam); - viewPort.setClearFlags(true, true, true); - - // Create a new cam for the gui - Camera guiCam = new Camera(settings.getWidth(), settings.getHeight()); - guiViewPort = renderManager.createPostView("Gui Default", guiCam); - guiViewPort.setClearFlags(false, false, false); - } - - /** - * Initializes mouse and keyboard input. Also - * initializes joystick input if joysticks are enabled in the - * AppSettings. - */ - private void initInput(){ - mouseInput = context.getMouseInput(); - if (mouseInput != null) - mouseInput.initialize(); - - keyInput = context.getKeyInput(); - if (keyInput != null) - keyInput.initialize(); - - touchInput = context.getTouchInput(); - if (touchInput != null) - touchInput.initialize(); - - if (!settings.getBoolean("DisableJoysticks")){ - joyInput = context.getJoyInput(); - if (joyInput != null) - joyInput.initialize(); - } - - inputManager = new InputManager(mouseInput, keyInput, joyInput, touchInput); - } - - private void initStateManager(){ - stateManager = new AppStateManager(this); - - // Always register a ResetStatsState to make sure - // that the stats are cleared every frame - stateManager.attach(new ResetStatsState()); - } - - /** - * @return The {@link AssetManager asset manager} for this application. - */ - public AssetManager getAssetManager(){ - return assetManager; - } - - /** - * @return the {@link InputManager input manager}. - */ - public InputManager getInputManager(){ - return inputManager; - } - - /** - * @return the {@link AppStateManager app state manager} - */ - public AppStateManager getStateManager() { - return stateManager; - } - - /** - * @return the {@link RenderManager render manager} - */ - public RenderManager getRenderManager() { - return renderManager; - } - - /** - * @return The {@link Renderer renderer} for the application - */ - public Renderer getRenderer(){ - return renderer; - } - - /** - * @return The {@link AudioRenderer audio renderer} for the application - */ - public AudioRenderer getAudioRenderer() { - return audioRenderer; - } - - /** - * @return The {@link Listener listener} object for audio - */ - public Listener getListener() { - return listener; - } - - /** - * @return The {@link JmeContext display context} for the application - */ - public JmeContext getContext(){ - return context; - } - - /** - * @return The {@link Camera camera} for the application - */ - public Camera getCamera(){ - return cam; - } - - /** - * Starts the application in {@link Type#Display display} mode. - * - * @see #start(com.jme3.system.JmeContext.Type) - */ - public void start(){ - start(JmeContext.Type.Display); - } - - /** - * Starts the application. - * Creating a rendering context and executing - * the main loop in a separate thread. - */ - public void start(JmeContext.Type contextType){ - if (context != null && context.isCreated()){ - logger.warning("start() called when application already created!"); - return; - } - - if (settings == null){ - settings = new AppSettings(true); - } - - logger.log(Level.FINE, "Starting application: {0}", getClass().getName()); - context = JmeSystem.newContext(settings, contextType); - context.setSystemListener(this); - context.create(false); - } - - /** - * Initializes the application's canvas for use. - *
- * After calling this method, cast the {@link #getContext() context} to - * {@link JmeCanvasContext}, - * then acquire the canvas with {@link JmeCanvasContext#getCanvas() } - * and attach it to an AWT/Swing Frame. - * The rendering thread will start when the canvas becomes visible on - * screen, however if you wish to start the context immediately you - * may call {@link #startCanvas() } to force the rendering thread - * to start. - * - * @see JmeCanvasContext - * @see Type#Canvas - */ - public void createCanvas(){ - if (context != null && context.isCreated()){ - logger.warning("createCanvas() called when application already created!"); - return; - } - - if (settings == null){ - settings = new AppSettings(true); - } - - logger.log(Level.FINE, "Starting application: {0}", getClass().getName()); - context = JmeSystem.newContext(settings, JmeContext.Type.Canvas); - context.setSystemListener(this); - } - - /** - * Starts the rendering thread after createCanvas() has been called. - *
- * Same as calling startCanvas(false) - * - * @see #startCanvas(boolean) - */ - public void startCanvas(){ - startCanvas(false); - } - - /** - * Starts the rendering thread after createCanvas() has been called. - *
- * Calling this method is optional, the canvas will start automatically - * when it becomes visible. - * - * @param waitFor If true, the current thread will block until the - * rendering thread is running - */ - public void startCanvas(boolean waitFor){ - context.create(waitFor); - } - - /** - * Internal use only. - */ - public void reshape(int w, int h){ - renderManager.notifyReshape(w, h); - } - - /** - * Restarts the context, applying any changed settings. - *
- * Changes to the {@link AppSettings} of this Application are not - * applied immediately; calling this method forces the context - * to restart, applying the new settings. - */ - public void restart(){ - context.setSettings(settings); - context.restart(); - } - - /** - * Requests the context to close, shutting down the main loop - * and making necessary cleanup operations. - * - * Same as calling stop(false) - * - * @see #stop(boolean) - */ - public void stop(){ - stop(false); - } - - /** - * Requests the context to close, shutting down the main loop - * and making necessary cleanup operations. - * After the application has stopped, it cannot be used anymore. - */ - public void stop(boolean waitFor){ - logger.log(Level.FINE, "Closing application: {0}", getClass().getName()); - context.destroy(waitFor); - } - - /** - * Do not call manually. - * Callback from ContextListener. - *
- * Initializes the Application, by creating a display and
- * default camera. If display settings are not specified, a default
- * 640x480 display is created. Default values are used for the camera;
- * perspective projection with 45° field of view, with near
- * and far values 1 and 1000 units respectively.
- */
- public void initialize(){
- if (assetManager == null){
- initAssetManager();
- }
-
- initDisplay();
- initCamera();
-
- if (inputEnabled){
- initInput();
- }
- initAudio();
-
- // update timer so that the next delta is not too large
-// timer.update();
- timer.reset();
-
- // user code here..
- }
-
- /**
- * Internal use only.
- */
- public void handleError(String errMsg, Throwable t){
- // Print error to log.
- logger.log(Level.SEVERE, errMsg, t);
- // Display error message on screen
- if (t != null) {
- JmeSystem.showErrorDialog(errMsg + "\n" + t.getClass().getSimpleName() +
- (t.getMessage() != null ? ": " + t.getMessage() : ""));
- } else {
- JmeSystem.showErrorDialog(errMsg);
- }
-
- stop(); // stop the application
- }
-
- /**
- * Internal use only.
- */
- public void gainFocus(){
- if (pauseOnFocus) {
- paused = false;
- context.setAutoFlushFrames(true);
- if (inputManager != null) {
- inputManager.reset();
- }
- }
- }
-
- /**
- * Internal use only.
- */
- public void loseFocus(){
- if (pauseOnFocus){
- paused = true;
- context.setAutoFlushFrames(false);
- }
- }
-
- /**
- * Internal use only.
- */
- public void requestClose(boolean esc){
- context.destroy(false);
- }
-
- /**
- * Enqueues a task/callable object to execute in the jME3
- * rendering thread.
- *
- * Callables are executed right at the beginning of the main loop.
- * They are executed even if the application is currently paused
- * or out of focus.
- */
- public
+ * By default, pause on lost focus is enabled.
+ * If enabled, the application will stop updating
+ * when it loses focus or becomes inactive (e.g. alt-tab).
+ * For online or real-time applications, this might not be preferable,
+ * so this feature should be set to disabled. For other applications,
+ * it is best to keep it on so that CPU usage is not used when
+ * not necessary.
+ *
+ * @param pauseOnLostFocus True to enable pause on lost focus, false
+ * otherwise.
+ */
+ public void setPauseOnLostFocus(boolean pauseOnLostFocus) {
+ this.pauseOnFocus = pauseOnLostFocus;
+ }
+
+ @Deprecated
+ public void setAssetManager(AssetManager assetManager){
+ if (this.assetManager != null)
+ throw new IllegalStateException("Can only set asset manager"
+ + " before initialization.");
+
+ this.assetManager = assetManager;
+ }
+
+ private void initAssetManager(){
+ if (settings != null){
+ String assetCfg = settings.getString("AssetConfigURL");
+ if (assetCfg != null){
+ URL url = null;
+ try {
+ url = new URL(assetCfg);
+ } catch (MalformedURLException ex) {
+ }
+ if (url == null) {
+ url = Application.class.getClassLoader().getResource(assetCfg);
+ if (url == null) {
+ logger.log(Level.SEVERE, "Unable to access AssetConfigURL in asset config:{0}", assetCfg);
+ return;
+ }
+ }
+ assetManager = JmeSystem.newAssetManager(url);
+ }
+ }
+ if (assetManager == null){
+ assetManager = JmeSystem.newAssetManager(
+ Thread.currentThread().getContextClassLoader()
+ .getResource("com/jme3/asset/Desktop.cfg"));
+ }
+ }
+
+ /**
+ * Set the display settings to define the display created.
+ *
+ * Examples of display parameters include display pixel width and height,
+ * color bit depth, z-buffer bits, anti-aliasing samples, and update frequency.
+ * If this method is called while the application is already running, then
+ * {@link #restart() } must be called to apply the settings to the display.
+ *
+ * @param settings The settings to set.
+ */
+ public void setSettings(AppSettings settings){
+ this.settings = settings;
+ if (context != null && settings.useInput() != inputEnabled){
+ // may need to create or destroy input based
+ // on settings change
+ inputEnabled = !inputEnabled;
+ if (inputEnabled){
+ initInput();
+ }else{
+ destroyInput();
+ }
+ }else{
+ inputEnabled = settings.useInput();
+ }
+ }
+
+ /**
+ * Sets the Timer implementation that will be used for calculating
+ * frame times. By default, Application will use the Timer as returned
+ * by the current JmeContext implementation.
+ */
+ public void setTimer(Timer timer){
+ this.timer = timer;
+
+ if (timer != null) {
+ timer.reset();
+ }
+
+ if (renderManager != null) {
+ renderManager.setTimer(timer);
+ }
+ }
+
+ public Timer getTimer(){
+ return timer;
+ }
+
+ private void initDisplay(){
+ // aquire important objects
+ // from the context
+ settings = context.getSettings();
+
+ // Only reset the timer if a user has not already provided one
+ if (timer == null) {
+ timer = context.getTimer();
+ }
+
+ renderer = context.getRenderer();
+ }
+
+ private void initAudio(){
+ if (settings.getAudioRenderer() != null && context.getType() != Type.Headless){
+ audioRenderer = JmeSystem.newAudioRenderer(settings);
+ audioRenderer.initialize();
+ AudioContext.setAudioRenderer(audioRenderer);
+
+ listener = new Listener();
+ audioRenderer.setListener(listener);
+ }
+ }
+
+ /**
+ * Creates the camera to use for rendering. Default values are perspective
+ * projection with 45° field of view, with near and far values 1 and 1000
+ * units respectively.
+ */
+ private void initCamera(){
+ cam = new Camera(settings.getWidth(), settings.getHeight());
+
+ cam.setFrustumPerspective(45f, (float)cam.getWidth() / cam.getHeight(), 1f, 1000f);
+ cam.setLocation(new Vector3f(0f, 0f, 10f));
+ cam.lookAt(new Vector3f(0f, 0f, 0f), Vector3f.UNIT_Y);
+
+ renderManager = new RenderManager(renderer);
+ //Remy - 09/14/2010 setted the timer in the renderManager
+ renderManager.setTimer(timer);
+ viewPort = renderManager.createMainView("Default", cam);
+ viewPort.setClearFlags(true, true, true);
+
+ // Create a new cam for the gui
+ Camera guiCam = new Camera(settings.getWidth(), settings.getHeight());
+ guiViewPort = renderManager.createPostView("Gui Default", guiCam);
+ guiViewPort.setClearFlags(false, false, false);
+ }
+
+ /**
+ * Initializes mouse and keyboard input. Also
+ * initializes joystick input if joysticks are enabled in the
+ * AppSettings.
+ */
+ private void initInput(){
+ mouseInput = context.getMouseInput();
+ if (mouseInput != null)
+ mouseInput.initialize();
+
+ keyInput = context.getKeyInput();
+ if (keyInput != null)
+ keyInput.initialize();
+
+ touchInput = context.getTouchInput();
+ if (touchInput != null)
+ touchInput.initialize();
+
+ if (!settings.getBoolean("DisableJoysticks")){
+ joyInput = context.getJoyInput();
+ if (joyInput != null)
+ joyInput.initialize();
+ }
+
+ inputManager = new InputManager(mouseInput, keyInput, joyInput, touchInput);
+ }
+
+ private void initStateManager(){
+ stateManager = new AppStateManager(this);
+
+ // Always register a ResetStatsState to make sure
+ // that the stats are cleared every frame
+ stateManager.attach(new ResetStatsState());
+ }
+
+ /**
+ * @return The {@link AssetManager asset manager} for this application.
+ */
+ public AssetManager getAssetManager(){
+ return assetManager;
+ }
+
+ /**
+ * @return the {@link InputManager input manager}.
+ */
+ public InputManager getInputManager(){
+ return inputManager;
+ }
+
+ /**
+ * @return the {@link AppStateManager app state manager}
+ */
+ public AppStateManager getStateManager() {
+ return stateManager;
+ }
+
+ /**
+ * @return the {@link RenderManager render manager}
+ */
+ public RenderManager getRenderManager() {
+ return renderManager;
+ }
+
+ /**
+ * @return The {@link Renderer renderer} for the application
+ */
+ public Renderer getRenderer(){
+ return renderer;
+ }
+
+ /**
+ * @return The {@link AudioRenderer audio renderer} for the application
+ */
+ public AudioRenderer getAudioRenderer() {
+ return audioRenderer;
+ }
+
+ /**
+ * @return The {@link Listener listener} object for audio
+ */
+ public Listener getListener() {
+ return listener;
+ }
+
+ /**
+ * @return The {@link JmeContext display context} for the application
+ */
+ public JmeContext getContext(){
+ return context;
+ }
+
+ /**
+ * @return The {@link Camera camera} for the application
+ */
+ public Camera getCamera(){
+ return cam;
+ }
+
+ /**
+ * Starts the application in {@link Type#Display display} mode.
+ *
+ * @see #start(com.jme3.system.JmeContext.Type)
+ */
+ public void start(){
+ start(JmeContext.Type.Display);
+ }
+
+ /**
+ * Starts the application.
+ * Creating a rendering context and executing
+ * the main loop in a separate thread.
+ */
+ public void start(JmeContext.Type contextType){
+ if (context != null && context.isCreated()){
+ logger.warning("start() called when application already created!");
+ return;
+ }
+
+ if (settings == null){
+ settings = new AppSettings(true);
+ }
+
+ logger.log(Level.FINE, "Starting application: {0}", getClass().getName());
+ context = JmeSystem.newContext(settings, contextType);
+ context.setSystemListener(this);
+ context.create(false);
+ }
+
+ /**
+ * Initializes the application's canvas for use.
+ *
+ * After calling this method, cast the {@link #getContext() context} to
+ * {@link JmeCanvasContext},
+ * then acquire the canvas with {@link JmeCanvasContext#getCanvas() }
+ * and attach it to an AWT/Swing Frame.
+ * The rendering thread will start when the canvas becomes visible on
+ * screen, however if you wish to start the context immediately you
+ * may call {@link #startCanvas() } to force the rendering thread
+ * to start.
+ *
+ * @see JmeCanvasContext
+ * @see Type#Canvas
+ */
+ public void createCanvas(){
+ if (context != null && context.isCreated()){
+ logger.warning("createCanvas() called when application already created!");
+ return;
+ }
+
+ if (settings == null){
+ settings = new AppSettings(true);
+ }
+
+ logger.log(Level.FINE, "Starting application: {0}", getClass().getName());
+ context = JmeSystem.newContext(settings, JmeContext.Type.Canvas);
+ context.setSystemListener(this);
+ }
+
+ /**
+ * Starts the rendering thread after createCanvas() has been called.
+ *
+ * Same as calling startCanvas(false)
+ *
+ * @see #startCanvas(boolean)
+ */
+ public void startCanvas(){
+ startCanvas(false);
+ }
+
+ /**
+ * Starts the rendering thread after createCanvas() has been called.
+ *
+ * Calling this method is optional, the canvas will start automatically
+ * when it becomes visible.
+ *
+ * @param waitFor If true, the current thread will block until the
+ * rendering thread is running
+ */
+ public void startCanvas(boolean waitFor){
+ context.create(waitFor);
+ }
+
+ /**
+ * Internal use only.
+ */
+ public void reshape(int w, int h){
+ renderManager.notifyReshape(w, h);
+ }
+
+ /**
+ * Restarts the context, applying any changed settings.
+ *
+ * Changes to the {@link AppSettings} of this Application are not
+ * applied immediately; calling this method forces the context
+ * to restart, applying the new settings.
+ */
+ public void restart(){
+ context.setSettings(settings);
+ context.restart();
+ }
+
+ /**
+ * Requests the context to close, shutting down the main loop
+ * and making necessary cleanup operations.
+ *
+ * Same as calling stop(false)
+ *
+ * @see #stop(boolean)
+ */
+ public void stop(){
+ stop(false);
+ }
+
+ /**
+ * Requests the context to close, shutting down the main loop
+ * and making necessary cleanup operations.
+ * After the application has stopped, it cannot be used anymore.
+ */
+ public void stop(boolean waitFor){
+ logger.log(Level.FINE, "Closing application: {0}", getClass().getName());
+ context.destroy(waitFor);
+ }
+
+ /**
+ * Do not call manually.
+ * Callback from ContextListener.
+ *
+ * Initializes the
+ * Callables are executed right at the beginning of the main loop.
+ * They are executed even if the application is currently paused
+ * or out of focus.
+ */
+ public Application class represents an instance of a
+ * real-time 3D rendering jME application.
+ *
+ * An Application provides all the tools that are commonly used in jME3
+ * applications.
+ *
+ * jME3 applications *SHOULD NOT EXTEND* this class but extend {@link com.jme3.app.SimpleApplication} instead.
+ *
+ */
+public class Application implements SystemListener {
+
+ private static final Logger logger = Logger.getLogger(Application.class.getName());
+
+ protected AssetManager assetManager;
+
+ protected AudioRenderer audioRenderer;
+ protected Renderer renderer;
+ protected RenderManager renderManager;
+ protected ViewPort viewPort;
+ protected ViewPort guiViewPort;
+
+ protected JmeContext context;
+ protected AppSettings settings;
+ protected Timer timer = new NanoTimer();
+ protected Camera cam;
+ protected Listener listener;
+
+ protected boolean inputEnabled = true;
+ protected boolean pauseOnFocus = true;
+ protected float speed = 1f;
+ protected boolean paused = false;
+ protected MouseInput mouseInput;
+ protected KeyInput keyInput;
+ protected JoyInput joyInput;
+ protected TouchInput touchInput;
+ protected InputManager inputManager;
+ protected AppStateManager stateManager;
+
+ private final ConcurrentLinkedQueueApplication.
+ */
+ public Application(){
+ initStateManager();
+ }
+
+ /**
+ * Returns true if pause on lost focus is enabled, false otherwise.
+ *
+ * @return true if pause on lost focus is enabled
+ *
+ * @see #setPauseOnLostFocus(boolean)
+ */
+ public boolean isPauseOnLostFocus() {
+ return pauseOnFocus;
+ }
+
+ /**
+ * Enable or disable pause on lost focus.
+ * Application, by creating a display and
+ * default camera. If display settings are not specified, a default
+ * 640x480 display is created. Default values are used for the camera;
+ * perspective projection with 45° field of view, with near
+ * and far values 1 and 1000 units respectively.
+ */
+ public void initialize(){
+ if (assetManager == null){
+ initAssetManager();
+ }
+
+ initDisplay();
+ initCamera();
+
+ if (inputEnabled){
+ initInput();
+ }
+ initAudio();
+
+ // update timer so that the next delta is not too large
+// timer.update();
+ timer.reset();
+
+ // user code here..
+ }
+
+ /**
+ * Internal use only.
+ */
+ public void handleError(String errMsg, Throwable t){
+ // Print error to log.
+ logger.log(Level.SEVERE, errMsg, t);
+ // Display error message on screen
+ if (t != null) {
+ JmeSystem.showErrorDialog(errMsg + "\n" + t.getClass().getSimpleName() +
+ (t.getMessage() != null ? ": " + t.getMessage() : ""));
+ } else {
+ JmeSystem.showErrorDialog(errMsg);
+ }
+
+ stop(); // stop the application
+ }
+
+ /**
+ * Internal use only.
+ */
+ public void gainFocus(){
+ if (pauseOnFocus) {
+ paused = false;
+ context.setAutoFlushFrames(true);
+ if (inputManager != null) {
+ inputManager.reset();
+ }
+ }
+ }
+
+ /**
+ * Internal use only.
+ */
+ public void loseFocus(){
+ if (pauseOnFocus){
+ paused = true;
+ context.setAutoFlushFrames(false);
+ }
+ }
+
+ /**
+ * Internal use only.
+ */
+ public void requestClose(boolean esc){
+ context.destroy(false);
+ }
+
+ /**
+ * Enqueues a task/callable object to execute in the jME3
+ * rendering thread.
+ *