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
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8 *
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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,
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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 jme3test.effect;
33
34import com.jme3.app.SimpleApplication;
35import com.jme3.effect.ParticleEmitter;
36import com.jme3.effect.ParticleMesh.Type;
37import com.jme3.input.KeyInput;
38import com.jme3.input.controls.ActionListener;
39import com.jme3.input.controls.KeyTrigger;
40import com.jme3.material.Material;
41import com.jme3.math.FastMath;
42import com.jme3.math.Vector3f;
43
44/**
45 * Particle that moves in a circle.
46 *
47 * @author Kirill Vainer
48 */
49public class TestMovingParticle extends SimpleApplication {
50
51    private ParticleEmitter emit;
52    private float angle = 0;
53
54    public static void main(String[] args) {
55        TestMovingParticle app = new TestMovingParticle();
56        app.start();
57    }
58
59    @Override
60    public void simpleInitApp() {
61        emit = new ParticleEmitter("Emitter", Type.Triangle, 300);
62        emit.setGravity(0, 0, 0);
63        emit.setVelocityVariation(1);
64        emit.setLowLife(1);
65        emit.setHighLife(1);
66        emit.setInitialVelocity(new Vector3f(0, .5f, 0));
67        emit.setImagesX(15);
68        Material mat = new Material(assetManager, "Common/MatDefs/Misc/Particle.j3md");
69        mat.setTexture("Texture", assetManager.loadTexture("Effects/Smoke/Smoke.png"));
70        emit.setMaterial(mat);
71
72        rootNode.attachChild(emit);
73
74        inputManager.addListener(new ActionListener() {
75
76            public void onAction(String name, boolean isPressed, float tpf) {
77                if ("setNum".equals(name) && isPressed) {
78                    emit.setNumParticles(1000);
79                }
80            }
81        }, "setNum");
82
83        inputManager.addMapping("setNum", new KeyTrigger(KeyInput.KEY_SPACE));
84    }
85
86    @Override
87    public void simpleUpdate(float tpf) {
88        angle += tpf;
89        angle %= FastMath.TWO_PI;
90        float x = FastMath.cos(angle) * 2;
91        float y = FastMath.sin(angle) * 2;
92        emit.setLocalTranslation(x, 0, y);
93    }
94}
95