diff --git a/jme3-core/src/main/java/com/jme3/app/state/RootNodeAppState.java b/jme3-core/src/main/java/com/jme3/app/state/RootNodeAppState.java new file mode 100644 index 000000000..8daa9dc3a --- /dev/null +++ b/jme3-core/src/main/java/com/jme3/app/state/RootNodeAppState.java @@ -0,0 +1,129 @@ +/* + * Copyright (c) 2009-2014 jMonkeyEngine + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of 'jMonkeyEngine' nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +package com.jme3.app.state; + +import com.jme3.app.Application; +import com.jme3.renderer.ViewPort; +import com.jme3.scene.Node; + +/** + * AppState that manages and updates a RootNode attached to a ViewPort, the + * default Application ViewPort is used by default, a RootNode is created by + * default. + * @author normenhansen + */ +public class RootNodeAppState extends AbstractAppState { + + protected ViewPort viewPort; + protected Node rootNode; + + /** + * Creates the AppState with a new, empty root Node, attaches it to the + * default Application ViewPort and updates it when attached to the + * AppStateManager. + */ + public RootNodeAppState() { + } + + /** + * Creates the AppState with the given ViewPort and creates a RootNode + * that is attached to the given ViewPort and updates it when attached to the + * AppStateManager. + * @param viewPort An existing ViewPort + */ + public RootNodeAppState(ViewPort viewPort) { + this.viewPort = viewPort; + } + + /** + * Creates the AppState with the given root Node, uses the default + * Application ViewPort and updates the root Node when attached to the + * AppStateManager. + * @param rootNode An existing root Node + */ + public RootNodeAppState(Node rootNode) { + this.rootNode = rootNode; + } + + /** + * Creates the AppState with the given ViewPort and root Node, attaches + * the root Node to the ViewPort and updates it. + * @param viewPort An existing ViewPort + * @param rootNode An existing root Node + */ + public RootNodeAppState(ViewPort viewPort, Node rootNode) { + this.viewPort = viewPort; + this.rootNode = rootNode; + } + + @Override + public void initialize(AppStateManager stateManager, Application app) { + if (rootNode == null) { + rootNode = new Node("Root Node"); + } + if (viewPort == null) { + viewPort = app.getViewPort(); + } + viewPort.attachScene(rootNode); + super.initialize(stateManager, app); + } + + @Override + public void update(float tpf) { + super.update(tpf); + rootNode.updateLogicalState(tpf); + rootNode.updateGeometricState(); + } + + @Override + public void cleanup() { + viewPort.detachScene(rootNode); + super.cleanup(); + } + + /** + * Returns the managed rootNode. + * @return The managed rootNode + */ + public Node getRootNode() { + return rootNode; + } + + /** + * Returns the used ViewPort + * @return The used ViewPort + */ + public ViewPort getViewPort() { + return viewPort; + } + +}