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| The <code>com.jme3.application</code> provides a toolset for jME3 applications |
| to interact with various components of the engine. Typically, the |
| {@link com.jme3.app.Application} class will be extended and the update() method |
| implemented to provide functionality for the main loop. <br> |
| <p> |
| An <code>Application</code> will typically provide the following services: |
| <ul> |
| <li>{@link com.jme3.asset.AssetManager} - A system for finding and loading |
| data assets included with the application, such as models and textures.</li> |
| <li>{@link com.jme3.renderer.RenderManager} - A high-level rendering |
| interface for 3D graphics, manages viewports and scenes assigned |
| to the viewports, as well as general high-level rendering.</li> |
| <li>{@link com.jme3.input.InputManager} - An interface for handling input |
| from devices such as keyboard, mouse, and gamepad/joystick.</li> |
| <li>{@link com.jme3.app.state.AppStateManager} - Manager for |
| {@link com.jme3.app.state.AppState}s, which are specific application |
| functionality to be executed inside the main loop.</li> |
| <li>{@link com.jme3.audio.AudioRenderer} - Allows playing sound effects and |
| music.</li> |
| <li>{@link com.jme3.system.Timer} - The timer keeps track of time and allows |
| computing the time since the last frame (TPF) that is neccessary |
| for framerate-independent updates and motion.</li> |
| <li>{@link com.jme3.system.AppSettings} - A database containing various |
| settings for the application. These settings may be set by the user |
| or the application itself.</li> |
| </ul> |
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| |
| <h3>Usage</h3> |
| |
| An example use of the Application class is as follows<br> |
| <br> |
| |
| <code> |
| public class ExampleUse extends Application {<br> |
| <br> |
| private Node rootNode = new Node("Root Node");<br> |
| <br> |
| public static void main(String[] args){<br> |
| ExampleUse app = new ExampleUse();<br> |
| app.start();<br> |
| }<br> |
| <br> |
| @Override<br> |
| public void initialize(){<br> |
| super.initialize();<br> |
| <br> |
| // attach root node to viewport<br> |
| viewPort.attachScene(rootNode);<br> |
| }<br> |
| <br> |
| @Override<br> |
| public void update(){<br> |
| super.update();<br> |
| <br> |
| float tpf = timer.getTimePerFrame();<br> |
| <br> |
| // update rootNode<br> |
| rootNode.updateLogicalState(tpf);<br> |
| rootNode.updateGeometricState();<br> |
| <br> |
| // render the viewports<br> |
| renderManager.render(tpf);<br> |
| }<br> |
| }<br> |
| <br> |
| </code> |
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