/*
* Copyright (c) 2009-2012 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
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.bullet.collision.shapes;
import com.bulletphysics.collision.shapes.CompoundShape;
import com.bulletphysics.linearmath.Transform;
import com.jme3.bullet.collision.shapes.infos.ChildCollisionShape;
import com.jme3.bullet.util.Converter;
import com.jme3.export.InputCapsule;
import com.jme3.export.JmeExporter;
import com.jme3.export.JmeImporter;
import com.jme3.export.OutputCapsule;
import com.jme3.math.Matrix3f;
import com.jme3.math.Vector3f;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* A CompoundCollisionShape allows combining multiple base shapes
* to generate a more sophisticated shape.
* @author normenhansen
*/
public class CompoundCollisionShape extends CollisionShape {
protected ArrayList<ChildCollisionShape> children = new ArrayList<ChildCollisionShape>();
public CompoundCollisionShape() {
cShape = new CompoundShape();
}
/**
* adds a child shape at the given local translation
* @param shape the child shape to add
* @param location the local location of the child shape
*/
public void addChildShape(CollisionShape shape, Vector3f location) {
Transform transA = new Transform(Converter.convert(new Matrix3f()));
Converter.convert(location, transA.origin);
children.add(new ChildCollisionShape(location.clone(), new Matrix3f(), shape));
((CompoundShape) cShape).addChildShape(transA, shape.getCShape());
}
/**
* adds a child shape at the given local translation
* @param shape the child shape to add
* @param location the local location of the child shape
*/
public void addChildShape(CollisionShape shape, Vector3f location, Matrix3f rotation) {
if(shape instanceof CompoundCollisionShape){
throw new IllegalStateException("CompoundCollisionShapes cannot have CompoundCollisionShapes as children!");
}
Transform transA = new Transform(Converter.convert(rotation));
Converter.convert(location, transA.origin);
Converter.convert(rotation, transA.basis);
children.add(new ChildCollisionShape(location.clone(), rotation.clone(), shape));
((CompoundShape) cShape).addChildShape(transA, shape.getCShape());
}
private void addChildShapeDirect(CollisionShape shape, Vector3f location, Matrix3f rotation) {
if(shape instanceof CompoundCollisionShape){
throw new IllegalStateException("CompoundCollisionShapes cannot have CompoundCollisionShapes as children!");
}
Transform transA = new Transform(Converter.convert(rotation));
Converter.convert(location, transA.origin);
Converter.convert(rotation, transA.basis);
((CompoundShape) cShape).addChildShape(transA, shape.getCShape());
}
/**
* removes a child shape
* @param shape the child shape to remove
*/
public void removeChildShape(CollisionShape shape) {
((CompoundShape) cShape).removeChildShape(shape.getCShape());
for (Iterator<ChildCollisionShape> it = children.iterator(); it.hasNext();) {
ChildCollisionShape childCollisionShape = it.next();
if (childCollisionShape.shape == shape) {
it.remove();
}
}
}
public List<ChildCollisionShape> getChildren() {
return children;
}
/**
* WARNING - CompoundCollisionShape scaling has no effect.
*/
@Override
public void setScale(Vector3f scale) {
Logger.getLogger(this.getClass().getName()).log(Level.WARNING, "CompoundCollisionShape cannot be scaled");
}
public void write(JmeExporter ex) throws IOException {
super.write(ex);
OutputCapsule capsule = ex.getCapsule(this);
capsule.writeSavableArrayList(children, "children", new ArrayList<ChildCollisionShape>());
}
public void read(JmeImporter im) throws IOException {
super.read(im);
InputCapsule capsule = im.getCapsule(this);
children = capsule.readSavableArrayList("children", new ArrayList<ChildCollisionShape>());
cShape.setLocalScaling(Converter.convert(getScale()));
cShape.setMargin(margin);
loadChildren();
}
private void loadChildren() {
for (Iterator<ChildCollisionShape> it = children.iterator(); it.hasNext();) {
ChildCollisionShape child = it.next();
addChildShapeDirect(child.shape, child.location, child.rotation);
}
}
}