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.bulletphysics.collision.shapes.CylinderShape;
35import com.bulletphysics.collision.shapes.CylinderShapeX;
36import com.bulletphysics.collision.shapes.CylinderShapeZ;
37import com.jme3.bullet.util.Converter;
38import com.jme3.export.InputCapsule;
39import com.jme3.export.JmeExporter;
40import com.jme3.export.JmeImporter;
41import com.jme3.export.OutputCapsule;
42import com.jme3.math.Vector3f;
43import java.io.IOException;
44
45/**
46 * Basic cylinder collision shape
47 * @author normenhansen
48 */
49public class CylinderCollisionShape extends CollisionShape {
50
51    protected Vector3f halfExtents;
52    protected int axis;
53
54    public CylinderCollisionShape() {
55    }
56
57    /**
58     * creates a cylinder shape from the given halfextents
59     * @param halfExtents the halfextents to use
60     */
61    public CylinderCollisionShape(Vector3f halfExtents) {
62        this.halfExtents = halfExtents;
63        this.axis = 2;
64        createShape();
65    }
66
67    /**
68     * Creates a cylinder shape around the given axis from the given halfextents
69     * @param halfExtents the halfextents to use
70     * @param axis (0=X,1=Y,2=Z)
71     */
72    public CylinderCollisionShape(Vector3f halfExtents, int axis) {
73        this.halfExtents = halfExtents;
74        this.axis = axis;
75        createShape();
76    }
77
78    public final Vector3f getHalfExtents() {
79        return halfExtents;
80    }
81
82    public int getAxis() {
83        return axis;
84    }
85
86    public void write(JmeExporter ex) throws IOException {
87        super.write(ex);
88        OutputCapsule capsule = ex.getCapsule(this);
89        capsule.write(halfExtents, "halfExtents", new Vector3f(0.5f, 0.5f, 0.5f));
90        capsule.write(axis, "axis", 1);
91    }
92
93    public void read(JmeImporter im) throws IOException {
94        super.read(im);
95        InputCapsule capsule = im.getCapsule(this);
96        halfExtents = (Vector3f) capsule.readSavable("halfExtents", new Vector3f(0.5f, 0.5f, 0.5f));
97        axis = capsule.readInt("axis", 1);
98        createShape();
99    }
100
101    protected void createShape() {
102        switch (axis) {
103            case 0:
104                cShape = new CylinderShapeX(Converter.convert(halfExtents));
105                break;
106            case 1:
107                cShape = new CylinderShape(Converter.convert(halfExtents));
108                break;
109            case 2:
110                cShape = new CylinderShapeZ(Converter.convert(halfExtents));
111                break;
112        }
113        cShape.setLocalScaling(Converter.convert(getScale()));
114        cShape.setMargin(margin);
115    }
116
117}
118