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 package jme3test.bullet; 33 34 import com.jme3.app.SimpleApplication; 35 import com.jme3.bullet.BulletAppState; 36 import com.jme3.bullet.PhysicsSpace; 37 import com.jme3.bullet.collision.shapes.BoxCollisionShape; 38 import com.jme3.bullet.collision.shapes.SphereCollisionShape; 39 import com.jme3.bullet.control.GhostControl; 40 import com.jme3.bullet.control.PhysicsControl; 41 import com.jme3.bullet.control.RigidBodyControl; 42 import com.jme3.bullet.joints.HingeJoint; 43 import com.jme3.input.KeyInput; 44 import com.jme3.input.controls.AnalogListener; 45 import com.jme3.input.controls.KeyTrigger; 46 import com.jme3.math.Vector3f; 47 import com.jme3.scene.Node; 48 49 /** 50 * Tests attaching ghost nodes to physicsnodes via the scenegraph 51 * @author normenhansen 52 */ 53 public class TestAttachGhostObject extends SimpleApplication implements AnalogListener { 54 55 private HingeJoint joint; 56 private GhostControl ghostControl; 57 private Node collisionNode; 58 private Node hammerNode; 59 private Vector3f tempVec = new Vector3f(); 60 private BulletAppState bulletAppState; 61 main(String[] args)62 public static void main(String[] args) { 63 TestAttachGhostObject app = new TestAttachGhostObject(); 64 app.start(); 65 } 66 setupKeys()67 private void setupKeys() { 68 inputManager.addMapping("Lefts", new KeyTrigger(KeyInput.KEY_H)); 69 inputManager.addMapping("Rights", new KeyTrigger(KeyInput.KEY_K)); 70 inputManager.addMapping("Space", new KeyTrigger(KeyInput.KEY_SPACE)); 71 inputManager.addListener(this, "Lefts", "Rights", "Space"); 72 } 73 onAnalog(String binding, float value, float tpf)74 public void onAnalog(String binding, float value, float tpf) { 75 if (binding.equals("Lefts")) { 76 joint.enableMotor(true, 1, .1f); 77 } else if (binding.equals("Rights")) { 78 joint.enableMotor(true, -1, .1f); 79 } else if (binding.equals("Space")) { 80 joint.enableMotor(false, 0, 0); 81 } 82 } 83 84 @Override simpleInitApp()85 public void simpleInitApp() { 86 bulletAppState = new BulletAppState(); 87 stateManager.attach(bulletAppState); 88 bulletAppState.getPhysicsSpace().enableDebug(assetManager); 89 setupKeys(); 90 setupJoint(); 91 } 92 getPhysicsSpace()93 private PhysicsSpace getPhysicsSpace() { 94 return bulletAppState.getPhysicsSpace(); 95 } 96 setupJoint()97 public void setupJoint() { 98 Node holderNode = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(.1f, .1f, .1f)), 0); 99 holderNode.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0f, 0, 0f)); 100 rootNode.attachChild(holderNode); 101 getPhysicsSpace().add(holderNode); 102 103 Node hammerNode = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(.3f, .3f, .3f)), 1); 104 hammerNode.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0f, -1, 0f)); 105 rootNode.attachChild(hammerNode); 106 getPhysicsSpace().add(hammerNode); 107 108 //immovable 109 collisionNode = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(.3f, .3f, .3f)), 0); 110 collisionNode.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(1.8f, 0, 0f)); 111 rootNode.attachChild(collisionNode); 112 getPhysicsSpace().add(collisionNode); 113 114 //ghost node 115 ghostControl = new GhostControl(new SphereCollisionShape(0.7f)); 116 117 hammerNode.addControl(ghostControl); 118 getPhysicsSpace().add(ghostControl); 119 120 joint = new HingeJoint(holderNode.getControl(RigidBodyControl.class), hammerNode.getControl(RigidBodyControl.class), Vector3f.ZERO, new Vector3f(0f, -1, 0f), Vector3f.UNIT_Z, Vector3f.UNIT_Z); 121 getPhysicsSpace().add(joint); 122 } 123 124 @Override simpleUpdate(float tpf)125 public void simpleUpdate(float tpf) { 126 if (ghostControl.getOverlappingObjects().contains(collisionNode.getControl(PhysicsControl.class))) { 127 fpsText.setText("collide"); 128 } 129 } 130 } 131