//Called on teleport, so that the noise levels for the listener can be recalculated
void updateListener()
{
currTrees.Clear();
foreach (Transform child in transform)
{
noiseParameters vehicleParams = child.GetComponent <noiseParameters>();
if (vehicleParams == null)
{
continue;
}
; //Skip this object if parameters are missing
NoiseSource noise = new NoiseSource();
noise.debug = debugMode;
noise.origin = child.position;
noise.controller = this;
noise.node = new TreeNode <NoiseSource>(noise);
noise.fireAt(listener, maximumDistance);
if (reflections)
{
noise.reflectToward(listener, maximumDistance);
}
//Transform tree into audio
generateAudio(child.gameObject, noise, vehicleParams);
}
}
public List <ImageSource> calculateNoise(NoiseController controller, NoiseSource src, noiseParameters vehicleParams)
{
currController = controller;
currSource = src;
currVehicle = vehicleParams;
images = new List <ImageSource>();
List <propagationStep> start = new List <propagationStep>();
//turn propagation paths into image sources
//Recursively work through to the leafs, then add to images
foreach (TreeNode <NoiseSource> node in src.node.Children)
{
pathFromTo(src.node, src.node, node, 0, 0, start);
}
//After this loop, the list of images is populated
return(images);
}
private void generateAudio(GameObject noiseObject, NoiseSource noiseTree, noiseParameters vehicleParams)
{
//Save tree
currTrees.Add(noiseTree);
//Convert tree of noise propagation paths into list of image sources for audio playback
NMBP2008 noiseModel = new NMBP2008();
List <ImageSource> audioSources = noiseModel.calculateNoise(this, noiseTree, vehicleParams);
//Check if sound is already running
NoisePlayer nP = noiseObject.GetComponent <NoisePlayer>();
if (nP == null)
{
nP = noiseObject.AddComponent <NoisePlayer>();
}
nP.play(audioSources, audioSourceObject);
}
Color calculateNoiseLevelColor(GameObject dataPoint)
{
List <float> pathSoundLevels = new List <float>();
foreach (Transform child in transform)
{
noiseParameters vehicleParams = child.GetComponent <noiseParameters>();
if (vehicleParams == null)
{
return(Color.white);
}
; //Skip this object if parameters are missing
NoiseSource noise = new NoiseSource();
noise.debug = false;
noise.origin = child.position;
noise.controller = this;
noise.node = new TreeNode <NoiseSource>(noise);
noise.fireAt(dataPoint, maximumDistance);
if (reflections)
{
noise.reflectToward(dataPoint, maximumDistance);
}
NMBP2008 noiseModel = new NMBP2008();
List <ImageSource> images = noiseModel.calculateNoise(this, noise, vehicleParams);
foreach (ImageSource img in images)
{
pathSoundLevels.Add(aWeighting(img));
}
}
if (pathSoundLevels.Count == 0)
{
return(Color.white);
}
//Long term sound level
float finalSoundLevel = 0;
foreach (float dezibel in pathSoundLevels)
{
finalSoundLevel = finalSoundLevel + Mathf.Pow(10.0f, (dezibel / 10));
}
finalSoundLevel = 10.0f * Mathf.Log10(finalSoundLevel);
//Map value to something between 0 and 1, then map to color
//Same mapping as in NoisePlayer.cs
//float value = Mathf.Pow(10f, finalSoundLevel / 20f) * 0.00002f / 2f;
//float minHue = 60f / 360; //corresponds to green
//float maxHue = 1f / 360; //corresponds to red
//float hue = value * maxHue + (1 - value) * minHue;
//return Color.HSVToRGB(hue, 1, 0.7f);
//Debug.Log("Soundlevel: " + finalSoundLevel + " Value: " + value + " Hue: " + hue);
//Map to different danger levels
if (finalSoundLevel < 65)
{
return(Color.green);
}
else if (finalSoundLevel < 80)
{
return(Color.yellow);
}
else
{
return(Color.red);
}
}
