1 /* 2 * Copyright (c) 2009-2010 jMonkeyEngine 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 package jme3test.helloworld; 34 35 import com.jme3.app.SimpleApplication; 36 import com.jme3.material.Material; 37 import com.jme3.math.ColorRGBA; 38 import com.jme3.math.Vector3f; 39 import com.jme3.scene.Geometry; 40 import com.jme3.scene.Node; 41 import com.jme3.scene.shape.Box; 42 43 /** Sample 2 - How to use nodes as handles to manipulate objects in the scene. 44 * You can rotate, translate, and scale objects by manipulating their parent nodes. 45 * The Root Node is special: Only what is attached to the Root Node appears in the scene. */ 46 public class HelloNode extends SimpleApplication { 47 main(String[] args)48 public static void main(String[] args){ 49 HelloNode app = new HelloNode(); 50 app.start(); 51 } 52 53 @Override simpleInitApp()54 public void simpleInitApp() { 55 56 /** create a blue box at coordinates (1,-1,1) */ 57 Box box1 = new Box( new Vector3f(1,-1,1), 1,1,1); 58 Geometry blue = new Geometry("Box", box1); 59 Material mat1 = new Material(assetManager, 60 "Common/MatDefs/Misc/Unshaded.j3md"); 61 mat1.setColor("Color", ColorRGBA.Blue); 62 blue.setMaterial(mat1); 63 64 /** create a red box straight above the blue one at (1,3,1) */ 65 Box box2 = new Box( new Vector3f(1,3,1), 1,1,1); 66 Geometry red = new Geometry("Box", box2); 67 Material mat2 = new Material(assetManager, 68 "Common/MatDefs/Misc/Unshaded.j3md"); 69 mat2.setColor("Color", ColorRGBA.Red); 70 red.setMaterial(mat2); 71 72 /** Create a pivot node at (0,0,0) and attach it to the root node */ 73 Node pivot = new Node("pivot"); 74 rootNode.attachChild(pivot); // put this node in the scene 75 76 /** Attach the two boxes to the *pivot* node. (And transitively to the root node.) */ 77 pivot.attachChild(blue); 78 pivot.attachChild(red); 79 /** Rotate the pivot node: Note that both boxes have rotated! */ 80 pivot.rotate(.4f,.4f,0f); 81 } 82 } 83 84