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
33package com.jme3.scene.debug;
34
35import com.jme3.animation.Bone;
36import com.jme3.animation.Skeleton;
37import com.jme3.math.Vector3f;
38import com.jme3.scene.Mesh;
39import com.jme3.scene.VertexBuffer;
40import com.jme3.scene.VertexBuffer.Format;
41import com.jme3.scene.VertexBuffer.Type;
42import com.jme3.scene.VertexBuffer.Usage;
43import com.jme3.util.BufferUtils;
44import java.nio.FloatBuffer;
45
46public class SkeletonPoints extends Mesh {
47
48    private Skeleton skeleton;
49
50    public SkeletonPoints(Skeleton skeleton){
51        this.skeleton = skeleton;
52
53        setMode(Mode.Points);
54
55        VertexBuffer pb = new VertexBuffer(Type.Position);
56        FloatBuffer fpb = BufferUtils.createFloatBuffer(skeleton.getBoneCount() * 3);
57        pb.setupData(Usage.Stream, 3, Format.Float, fpb);
58        setBuffer(pb);
59
60        setPointSize(7);
61
62        updateCounts();
63    }
64
65    public void updateGeometry(){
66        VertexBuffer vb = getBuffer(Type.Position);
67        FloatBuffer posBuf = getFloatBuffer(Type.Position);
68        posBuf.clear();
69        for (int i = 0; i < skeleton.getBoneCount(); i++){
70            Bone bone = skeleton.getBone(i);
71            Vector3f bonePos = bone.getModelSpacePosition();
72
73            posBuf.put(bonePos.getX()).put(bonePos.getY()).put(bonePos.getZ());
74        }
75        posBuf.flip();
76        vb.updateData(posBuf);
77
78        updateBound();
79    }
80}
81