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 jme3test.android;
33 
34 import com.jme3.app.SimpleApplication;
35 import com.jme3.effect.ParticleEmitter;
36 import com.jme3.effect.ParticleMesh.Type;
37 import com.jme3.input.KeyInput;
38 import com.jme3.input.controls.ActionListener;
39 import com.jme3.input.controls.KeyTrigger;
40 import com.jme3.light.AmbientLight;
41 import com.jme3.material.Material;
42 import com.jme3.math.ColorRGBA;
43 import com.jme3.math.FastMath;
44 import com.jme3.math.Vector3f;
45 
46 /**
47  * Particle that moves in a circle.
48  *
49  * @author Kirill Vainer
50  */
51 public class TestMovingParticle extends SimpleApplication {
52 
53     private ParticleEmitter emit;
54     private float angle = 0;
55 
main(String[] args)56     public static void main(String[] args) {
57         TestMovingParticle app = new TestMovingParticle();
58         app.start();
59     }
60 
61     @Override
simpleInitApp()62     public void simpleInitApp() {
63         emit = new ParticleEmitter("Emitter", Type.Triangle, 300);
64         emit.setGravity(0, 0, 0);
65         emit.setVelocityVariation(1);
66         emit.setLowLife(1);
67         emit.setHighLife(1);
68         emit.setInitialVelocity(new Vector3f(0, .5f, 0));
69         emit.setImagesX(15);
70         Material mat = new Material(assetManager, "Common/MatDefs/Misc/Particle.j3md");
71         mat.setTexture("Texture", assetManager.loadTexture("Effects/Smoke/Smoke.png"));
72         emit.setMaterial(mat);
73 
74         rootNode.attachChild(emit);
75 
76         AmbientLight al = new AmbientLight();
77         al.setColor(new ColorRGBA(0.84f, 0.80f, 0.80f, 1.0f));
78         rootNode.addLight(al);
79 
80 
81 
82         inputManager.addListener(new ActionListener() {
83 
84             public void onAction(String name, boolean isPressed, float tpf) {
85                 if ("setNum".equals(name) && isPressed) {
86                     emit.setNumParticles(1000);
87                 }
88             }
89         }, "setNum");
90 
91         inputManager.addMapping("setNum", new KeyTrigger(KeyInput.KEY_SPACE));
92     }
93 
94     @Override
simpleUpdate(float tpf)95     public void simpleUpdate(float tpf) {
96         angle += tpf;
97         angle %= FastMath.TWO_PI;
98         float x = FastMath.cos(angle) * 2;
99         float y = FastMath.sin(angle) * 2;
100         emit.setLocalTranslation(x, 0, y);
101     }
102 }
103