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.math.Vector3f;
36import com.jme3.scene.Mesh;
37import com.jme3.scene.VertexBuffer;
38import com.jme3.scene.VertexBuffer.Type;
39import com.jme3.util.BufferUtils;
40import java.nio.FloatBuffer;
41
42public class WireFrustum extends Mesh {
43
44    public WireFrustum(Vector3f[] points){
45        if (points != null)
46            setBuffer(Type.Position, 3, BufferUtils.createFloatBuffer(points));
47
48        setBuffer(Type.Index, 2,
49                new short[]{
50                     0, 1,
51                     1, 2,
52                     2, 3,
53                     3, 0,
54
55                     4, 5,
56                     5, 6,
57                     6, 7,
58                     7, 4,
59
60                     0, 4,
61                     1, 5,
62                     2, 6,
63                     3, 7,
64                }
65        );
66        setMode(Mode.Lines);
67    }
68
69    public void update(Vector3f[] points){
70        VertexBuffer vb = getBuffer(Type.Position);
71        if (vb == null){
72            setBuffer(Type.Position, 3, BufferUtils.createFloatBuffer(points));
73            return;
74        }
75
76        FloatBuffer b = BufferUtils.createFloatBuffer(points);
77        FloatBuffer a = (FloatBuffer) vb.getData();
78        b.rewind();
79        a.rewind();
80        a.put(b);
81        a.rewind();
82
83        vb.updateData(a);
84
85        updateBound();
86    }
87
88}
89