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.export.*;
35import com.jme3.math.Vector3f;
36import java.io.IOException;
37import java.util.logging.Level;
38import java.util.logging.Logger;
39
40/**
41 * This Object holds information about a jbullet CollisionShape to be able to reuse
42 * CollisionShapes (as suggested in bullet manuals)
43 * TODO: add static methods to create shapes from nodes (like jbullet-jme constructor)
44 * @author normenhansen
45 */
46public abstract class CollisionShape implements Savable {
47
48    protected long objectId = 0;
49    protected Vector3f scale = new Vector3f(1, 1, 1);
50    protected float margin = 0.0f;
51
52    public CollisionShape() {
53    }
54
55//    /**
56//     * used internally, not safe
57//     */
58//    public void calculateLocalInertia(long objectId, float mass) {
59//        if (this.objectId == 0) {
60//            return;
61//        }
62////        if (this instanceof MeshCollisionShape) {
63////            vector.set(0, 0, 0);
64////        } else {
65//        calculateLocalInertia(objectId, this.objectId, mass);
66////            objectId.calculateLocalInertia(mass, vector);
67////        }
68//    }
69//
70//    private native void calculateLocalInertia(long objectId, long shapeId, float mass);
71
72    /**
73     * used internally
74     */
75    public long getObjectId() {
76        return objectId;
77    }
78
79    /**
80     * used internally
81     */
82    public void setObjectId(long id) {
83        this.objectId = id;
84    }
85
86    public void setScale(Vector3f scale) {
87        this.scale.set(scale);
88        setLocalScaling(objectId, scale);
89    }
90
91    public Vector3f getScale() {
92        return scale;
93    }
94
95    public float getMargin() {
96        return getMargin(objectId);
97    }
98
99    private native float getMargin(long objectId);
100
101    public void setMargin(float margin) {
102        setMargin(objectId, margin);
103        this.margin = margin;
104    }
105
106    private native void setLocalScaling(long obectId, Vector3f scale);
107
108    private native void setMargin(long objectId, float margin);
109
110    public void write(JmeExporter ex) throws IOException {
111        OutputCapsule capsule = ex.getCapsule(this);
112        capsule.write(scale, "scale", new Vector3f(1, 1, 1));
113        capsule.write(getMargin(), "margin", 0.0f);
114    }
115
116    public void read(JmeImporter im) throws IOException {
117        InputCapsule capsule = im.getCapsule(this);
118        this.scale = (Vector3f) capsule.readSavable("scale", new Vector3f(1, 1, 1));
119        this.margin = capsule.readFloat("margin", 0.0f);
120    }
121
122    @Override
123    protected void finalize() throws Throwable {
124        super.finalize();
125        Logger.getLogger(this.getClass().getName()).log(Level.INFO, "Finalizing CollisionShape {0}", Long.toHexString(objectId));
126        finalizeNative(objectId);
127    }
128
129    private native void finalizeNative(long objectId);
130}
131