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 package com.jme3.bullet.collision.shapes;
33 
34 import com.bulletphysics.collision.shapes.CylinderShape;
35 import com.bulletphysics.collision.shapes.CylinderShapeX;
36 import com.bulletphysics.collision.shapes.CylinderShapeZ;
37 import com.jme3.bullet.util.Converter;
38 import com.jme3.export.InputCapsule;
39 import com.jme3.export.JmeExporter;
40 import com.jme3.export.JmeImporter;
41 import com.jme3.export.OutputCapsule;
42 import com.jme3.math.Vector3f;
43 import java.io.IOException;
44 
45 /**
46  * Basic cylinder collision shape
47  * @author normenhansen
48  */
49 public class CylinderCollisionShape extends CollisionShape {
50 
51     protected Vector3f halfExtents;
52     protected int axis;
53 
CylinderCollisionShape()54     public CylinderCollisionShape() {
55     }
56 
57     /**
58      * creates a cylinder shape from the given halfextents
59      * @param halfExtents the halfextents to use
60      */
CylinderCollisionShape(Vector3f halfExtents)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      */
CylinderCollisionShape(Vector3f halfExtents, int axis)72     public CylinderCollisionShape(Vector3f halfExtents, int axis) {
73         this.halfExtents = halfExtents;
74         this.axis = axis;
75         createShape();
76     }
77 
getHalfExtents()78     public final Vector3f getHalfExtents() {
79         return halfExtents;
80     }
81 
getAxis()82     public int getAxis() {
83         return axis;
84     }
85 
write(JmeExporter ex)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 
read(JmeImporter im)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 
createShape()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