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 */ 32package com.jme3.bullet.collision.shapes; 33 34import com.jme3.bullet.collision.shapes.infos.ChildCollisionShape; 35import com.jme3.export.InputCapsule; 36import com.jme3.export.JmeExporter; 37import com.jme3.export.JmeImporter; 38import com.jme3.export.OutputCapsule; 39import com.jme3.math.Matrix3f; 40import com.jme3.math.Vector3f; 41import java.io.IOException; 42import java.util.ArrayList; 43import java.util.Iterator; 44import java.util.List; 45import java.util.logging.Level; 46import java.util.logging.Logger; 47 48/** 49 * A CompoundCollisionShape allows combining multiple base shapes 50 * to generate a more sophisticated shape. 51 * @author normenhansen 52 */ 53public class CompoundCollisionShape extends CollisionShape { 54 55 protected ArrayList<ChildCollisionShape> children = new ArrayList<ChildCollisionShape>(); 56 57 public CompoundCollisionShape() { 58 objectId = createShape();//new CompoundShape(); 59 Logger.getLogger(this.getClass().getName()).log(Level.INFO, "Created Shape {0}", Long.toHexString(objectId)); 60 } 61 62 /** 63 * adds a child shape at the given local translation 64 * @param shape the child shape to add 65 * @param location the local location of the child shape 66 */ 67 public void addChildShape(CollisionShape shape, Vector3f location) { 68// Transform transA = new Transform(Converter.convert(new Matrix3f())); 69// Converter.convert(location, transA.origin); 70// children.add(new ChildCollisionShape(location.clone(), new Matrix3f(), shape)); 71// ((CompoundShape) objectId).addChildShape(transA, shape.getObjectId()); 72 addChildShape(shape, location, new Matrix3f()); 73 } 74 75 /** 76 * adds a child shape at the given local translation 77 * @param shape the child shape to add 78 * @param location the local location of the child shape 79 */ 80 public void addChildShape(CollisionShape shape, Vector3f location, Matrix3f rotation) { 81 if(shape instanceof CompoundCollisionShape){ 82 throw new IllegalStateException("CompoundCollisionShapes cannot have CompoundCollisionShapes as children!"); 83 } 84// Transform transA = new Transform(Converter.convert(rotation)); 85// Converter.convert(location, transA.origin); 86// Converter.convert(rotation, transA.basis); 87 children.add(new ChildCollisionShape(location.clone(), rotation.clone(), shape)); 88 addChildShape(objectId, shape.getObjectId(), location, rotation); 89// ((CompoundShape) objectId).addChildShape(transA, shape.getObjectId()); 90 } 91 92 private void addChildShapeDirect(CollisionShape shape, Vector3f location, Matrix3f rotation) { 93 if(shape instanceof CompoundCollisionShape){ 94 throw new IllegalStateException("CompoundCollisionShapes cannot have CompoundCollisionShapes as children!"); 95 } 96// Transform transA = new Transform(Converter.convert(rotation)); 97// Converter.convert(location, transA.origin); 98// Converter.convert(rotation, transA.basis); 99 addChildShape(objectId, shape.getObjectId(), location, rotation); 100// ((CompoundShape) objectId).addChildShape(transA, shape.getObjectId()); 101 } 102 103 /** 104 * removes a child shape 105 * @param shape the child shape to remove 106 */ 107 public void removeChildShape(CollisionShape shape) { 108 removeChildShape(objectId, shape.getObjectId()); 109// ((CompoundShape) objectId).removeChildShape(shape.getObjectId()); 110 for (Iterator<ChildCollisionShape> it = children.iterator(); it.hasNext();) { 111 ChildCollisionShape childCollisionShape = it.next(); 112 if (childCollisionShape.shape == shape) { 113 it.remove(); 114 } 115 } 116 } 117 118 public List<ChildCollisionShape> getChildren() { 119 return children; 120 } 121 122 /** 123 * WARNING - CompoundCollisionShape scaling has no effect. 124 */ 125 @Override 126 public void setScale(Vector3f scale) { 127 Logger.getLogger(this.getClass().getName()).log(Level.WARNING, "CompoundCollisionShape cannot be scaled"); 128 } 129 130 private native long createShape(); 131 132 private native long addChildShape(long objectId, long childId, Vector3f location, Matrix3f rotation); 133 134 private native long removeChildShape(long objectId, long childId); 135 136 public void write(JmeExporter ex) throws IOException { 137 super.write(ex); 138 OutputCapsule capsule = ex.getCapsule(this); 139 capsule.writeSavableArrayList(children, "children", new ArrayList<ChildCollisionShape>()); 140 } 141 142 public void read(JmeImporter im) throws IOException { 143 super.read(im); 144 InputCapsule capsule = im.getCapsule(this); 145 children = capsule.readSavableArrayList("children", new ArrayList<ChildCollisionShape>()); 146 setScale(scale); 147 setMargin(margin); 148 loadChildren(); 149 } 150 151 private void loadChildren() { 152 for (Iterator<ChildCollisionShape> it = children.iterator(); it.hasNext();) { 153 ChildCollisionShape child = it.next(); 154 addChildShapeDirect(child.shape, child.location, child.rotation); 155 } 156 } 157 158} 159