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      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 com.jme3.audio;
     34 
     35 import com.jme3.math.Quaternion;
     36 import com.jme3.math.Vector3f;
     37 
     38 public class Listener {
     39 
     40     private Vector3f location;
     41     private Vector3f velocity;
     42     private Quaternion rotation;
     43     private float volume = 1;
     44     private AudioRenderer renderer;
     45 
     46     public Listener(){
     47         location = new Vector3f();
     48         velocity = new Vector3f();
     49         rotation = new Quaternion();
     50     }
     51 
     52     public Listener(Listener source){
     53         location = source.location.clone();
     54         velocity = source.velocity.clone();
     55         rotation = source.rotation.clone();
     56         volume = source.volume;
     57     }
     58 
     59     public void setRenderer(AudioRenderer renderer){
     60         this.renderer = renderer;
     61     }
     62 
     63     public float getVolume() {
     64         return volume;
     65     }
     66 
     67     public void setVolume(float volume) {
     68         this.volume = volume;
     69         if (renderer != null)
     70             renderer.updateListenerParam(this, ListenerParam.Volume);
     71     }
     72 
     73     public Vector3f getLocation() {
     74         return location;
     75     }
     76 
     77     public Quaternion getRotation() {
     78         return rotation;
     79     }
     80 
     81     public Vector3f getVelocity() {
     82         return velocity;
     83     }
     84 
     85     public Vector3f getLeft(){
     86         return rotation.getRotationColumn(0);
     87     }
     88 
     89     public Vector3f getUp(){
     90         return rotation.getRotationColumn(1);
     91     }
     92 
     93     public Vector3f getDirection(){
     94         return rotation.getRotationColumn(2);
     95     }
     96 
     97     public void setLocation(Vector3f location) {
     98         this.location.set(location);
     99         if (renderer != null)
    100             renderer.updateListenerParam(this, ListenerParam.Position);
    101     }
    102 
    103     public void setRotation(Quaternion rotation) {
    104         this.rotation.set(rotation);
    105         if (renderer != null)
    106             renderer.updateListenerParam(this, ListenerParam.Rotation);
    107     }
    108 
    109     public void setVelocity(Vector3f velocity) {
    110         this.velocity.set(velocity);
    111         if (renderer != null)
    112             renderer.updateListenerParam(this, ListenerParam.Velocity);
    113     }
    114 }
    115