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.bullet; 34 35 import com.jme3.app.Application; 36 import com.jme3.app.SimpleApplication; 37 import com.jme3.bullet.BulletAppState; 38 import com.jme3.bullet.PhysicsSpace; 39 import com.jme3.bullet.collision.shapes.BoxCollisionShape; 40 import com.jme3.bullet.collision.shapes.CollisionShape; 41 import com.jme3.bullet.control.GhostControl; 42 import com.jme3.bullet.control.RigidBodyControl; 43 import com.jme3.math.Vector3f; 44 import com.jme3.scene.Node; 45 import com.jme3.scene.shape.Box; 46 47 /** 48 * 49 * @author tim8dev [at] gmail [dot com] 50 */ 51 public class TestGhostObject extends SimpleApplication { 52 53 private BulletAppState bulletAppState; 54 private GhostControl ghostControl; 55 main(String[] args)56 public static void main(String[] args) { 57 Application app = new TestGhostObject(); 58 app.start(); 59 } 60 61 @Override simpleInitApp()62 public void simpleInitApp() { 63 bulletAppState = new BulletAppState(); 64 stateManager.attach(bulletAppState); 65 bulletAppState.getPhysicsSpace().enableDebug(assetManager); 66 67 // Mesh to be shared across several boxes. 68 Box boxGeom = new Box(Vector3f.ZERO, 1f, 1f, 1f); 69 // CollisionShape to be shared across several boxes. 70 CollisionShape shape = new BoxCollisionShape(new Vector3f(1, 1, 1)); 71 72 Node physicsBox = PhysicsTestHelper.createPhysicsTestNode(assetManager, shape, 1); 73 physicsBox.setName("box0"); 74 physicsBox.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(.6f, 4, .5f)); 75 rootNode.attachChild(physicsBox); 76 getPhysicsSpace().add(physicsBox); 77 78 Node physicsBox1 = PhysicsTestHelper.createPhysicsTestNode(assetManager, shape, 1); 79 physicsBox1.setName("box1"); 80 physicsBox1.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0, 40, 0)); 81 rootNode.attachChild(physicsBox1); 82 getPhysicsSpace().add(physicsBox1); 83 84 Node physicsBox2 = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(1, 1, 1)), 1); 85 physicsBox2.setName("box0"); 86 physicsBox2.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(.5f, 80, -.8f)); 87 rootNode.attachChild(physicsBox2); 88 getPhysicsSpace().add(physicsBox2); 89 90 // the floor, does not move (mass=0) 91 Node node = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(100, 1, 100)), 0); 92 node.setName("floor"); 93 node.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0f, -6, 0f)); 94 rootNode.attachChild(node); 95 getPhysicsSpace().add(node); 96 97 initGhostObject(); 98 } 99 getPhysicsSpace()100 private PhysicsSpace getPhysicsSpace(){ 101 return bulletAppState.getPhysicsSpace(); 102 } 103 initGhostObject()104 private void initGhostObject() { 105 Vector3f halfExtents = new Vector3f(3, 4.2f, 1); 106 ghostControl = new GhostControl(new BoxCollisionShape(halfExtents)); 107 Node node=new Node("Ghost Object"); 108 node.addControl(ghostControl); 109 rootNode.attachChild(node); 110 getPhysicsSpace().add(ghostControl); 111 } 112 113 @Override simpleUpdate(float tpf)114 public void simpleUpdate(float tpf) { 115 fpsText.setText("Overlapping objects: " + ghostControl.getOverlappingObjects().toString()); 116 } 117 } 118