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 33 package jme3test.audio; 34 35 import com.jme3.app.SimpleApplication; 36 import com.jme3.audio.AudioNode; 37 import com.jme3.audio.Environment; 38 import com.jme3.math.FastMath; 39 import com.jme3.math.Vector3f; 40 import org.lwjgl.openal.AL10; 41 import org.lwjgl.openal.AL11; 42 43 /** 44 * Test Doppler Effect 45 */ 46 public class TestDoppler extends SimpleApplication { 47 48 private AudioNode ufo; 49 50 private float x = 20, z = 0; 51 private float rate = -0.05f; 52 private float xDist = 20; 53 private float zDist = 5; 54 private float angle = FastMath.TWO_PI; 55 main(String[] args)56 public static void main(String[] args){ 57 TestDoppler test = new TestDoppler(); 58 test.start(); 59 } 60 61 @Override simpleInitApp()62 public void simpleInitApp(){ 63 audioRenderer.setEnvironment(Environment.Dungeon); 64 AL10.alDistanceModel(AL11.AL_EXPONENT_DISTANCE); 65 66 ufo = new AudioNode(assetManager, "Sound/Effects/Beep.ogg", false); 67 ufo.setPositional(true); 68 ufo.setLooping(true); 69 ufo.setReverbEnabled(true); 70 ufo.setRefDistance(100000000); 71 ufo.setMaxDistance(100000000); 72 ufo.play(); 73 } 74 75 @Override simpleUpdate(float tpf)76 public void simpleUpdate(float tpf){ 77 //float x = (float) (Math.cos(angle) * xDist); 78 float dx = (float) Math.sin(angle) * xDist; 79 80 //float z = (float) (Math.sin(angle) * zDist); 81 float dz = (float)(-Math.cos(angle) * zDist); 82 83 x += dx * tpf * 0.05f; 84 z += dz * tpf * 0.05f; 85 86 angle += tpf * rate; 87 88 if (angle > FastMath.TWO_PI){ 89 angle = FastMath.TWO_PI; 90 rate = -rate; 91 }else if (angle < -0){ 92 angle = -0; 93 rate = -rate; 94 } 95 96 ufo.setVelocity(new Vector3f(dx, 0, dz)); 97 ufo.setLocalTranslation(x, 0, z); 98 ufo.updateGeometricState(); 99 100 System.out.println("LOC: " + (int)x +", " + (int)z + 101 ", VEL: " + (int)dx + ", " + (int)dz); 102 } 103 104 } 105