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.effect.shapes;
33
34import com.jme3.export.InputCapsule;
35import com.jme3.export.JmeExporter;
36import com.jme3.export.JmeImporter;
37import com.jme3.export.OutputCapsule;
38import com.jme3.math.FastMath;
39import com.jme3.math.Vector3f;
40import java.io.IOException;
41
42public class EmitterBoxShape implements EmitterShape {
43
44    private Vector3f min, len;
45
46    public EmitterBoxShape() {
47    }
48
49    public EmitterBoxShape(Vector3f min, Vector3f max) {
50        if (min == null || max == null) {
51            throw new NullPointerException();
52        }
53
54        this.min = min;
55        this.len = new Vector3f();
56        this.len.set(max).subtractLocal(min);
57    }
58
59    @Override
60    public void getRandomPoint(Vector3f store) {
61        store.x = min.x + len.x * FastMath.nextRandomFloat();
62        store.y = min.y + len.y * FastMath.nextRandomFloat();
63        store.z = min.z + len.z * FastMath.nextRandomFloat();
64    }
65
66    /**
67     * This method fills the point with data.
68     * It does not fill the normal.
69     * @param store the variable to store the point data
70     * @param normal not used in this class
71     */
72    @Override
73    public void getRandomPointAndNormal(Vector3f store, Vector3f normal) {
74        this.getRandomPoint(store);
75    }
76
77    @Override
78    public EmitterShape deepClone() {
79        try {
80            EmitterBoxShape clone = (EmitterBoxShape) super.clone();
81            clone.min = min.clone();
82            clone.len = len.clone();
83            return clone;
84        } catch (CloneNotSupportedException ex) {
85            throw new AssertionError();
86        }
87    }
88
89    public Vector3f getMin() {
90        return min;
91    }
92
93    public void setMin(Vector3f min) {
94        this.min = min;
95    }
96
97    public Vector3f getLen() {
98        return len;
99    }
100
101    public void setLen(Vector3f len) {
102        this.len = len;
103    }
104
105    @Override
106    public void write(JmeExporter ex) throws IOException {
107        OutputCapsule oc = ex.getCapsule(this);
108        oc.write(min, "min", null);
109        oc.write(len, "length", null);
110    }
111
112    @Override
113    public void read(JmeImporter im) throws IOException {
114        InputCapsule ic = im.getCapsule(this);
115        min = (Vector3f) ic.readSavable("min", null);
116        len = (Vector3f) ic.readSavable("length", null);
117    }
118}
119