private void UpdateSources()
{
this.sources.Sort(this.compareSources);
int i = 0;
while (i < this.sources.Count)
{
LinearEmitter.Source source = this.sources[i];
int num = this.DescendToClosestSegment(source.segment);
if (this.IsSegmentOccluded(num))
{
num = this.AscendToAudibleSegment(source.segment);
}
if (!this.IsSegmentOccluded(num))
{
source.segment = num;
}
LinearEmitter.Segment segment = this.segments[source.segment];
if (this.IsSegmentOccluded(source.segment) || segment.sqrDistance > this.sqrEventMaximumDistance)
{
UnityUtil.ERRCHECK(source.eventInstance.stop(STOP_MODE.ALLOWFADEOUT));
UnityUtil.ERRCHECK(source.eventInstance.release());
this.sources.RemoveAt(i);
}
else
{
Vector3 vector = segment.closestPoint - source.position;
float sqrMagnitude = vector.sqrMagnitude;
float num2 = this.sourceSpeed * Time.deltaTime;
if (num2 * num2 >= sqrMagnitude)
{
source.position = segment.closestPoint;
}
else
{
source.position += vector.normalized * num2;
}
this.UpdateSource(source);
this.sources[i] = source;
i++;
}
}
while (this.sources.Count < this.maximumSourceCount)
{
int num3 = this.FindClosestAudibleSegment();
if (num3 < 0 || this.segments[num3].sqrDistance > this.sqrEventMaximumDistance)
{
break;
}
LinearEmitter.Source source2;
source2.segment = num3;
source2.position = this.segments[num3].closestPoint;
UnityUtil.ERRCHECK(this.eventDescription.createInstance(out source2.eventInstance));
this.UpdateSource(source2);
UnityUtil.ERRCHECK(source2.eventInstance.start());
this.sources.Add(source2);
}
}
private void SetSourceParameterValues(LinearEmitter.Source source)
{
if (this.parameters != null)
{
float closestT = this.segments[source.segment].closestT;
int segment = source.segment;
int index = (source.segment + 1) % this.points.Count;
for (int i = 0; i < this.parameters.Count; i++)
{
if (this.parameters[i].index >= 0)
{
float num = this.parameters[i].values[segment];
float num2 = this.parameters[i].values[index];
float value = num + (num2 - num) * closestT;
UnityUtil.ERRCHECK(source.eventInstance.setParameterValueByIndex(this.parameters[i].index, value));
}
}
}
}
private void UpdateSource(LinearEmitter.Source source)
{
this.OccludeSegments(source);
FMOD.Studio.ATTRIBUTES_3D attributes;
attributes.position = source.position.toFMODVector();
attributes.forward = base.transform.forward.toFMODVector();
attributes.up = base.transform.up.toFMODVector();
attributes.velocity = Vector3.zero.toFMODVector();
UnityUtil.ERRCHECK(source.eventInstance.set3DAttributes(attributes));
if (this.windParameterIndex >= 0 && TheForestAtmosphere.Instance != null)
{
UnityUtil.ERRCHECK(source.eventInstance.setParameterValueByIndex(this.windParameterIndex, TheForestAtmosphere.Instance.WindIntensity));
}
if (this.rainParameterIndex >= 0)
{
UnityUtil.ERRCHECK(source.eventInstance.setParameterValueByIndex(this.rainParameterIndex, (!Scene.WeatherSystem.Raining) ? 0f : 1f));
}
this.SetSourceParameterValues(source);
}
private void OccludeSegments(LinearEmitter.Source occluder)
{
if (this.audibleSegments.Count == 0)
{
return;
}
Vector3 closestPoint = this.segments[occluder.segment].closestPoint;
Vector3 v = closestPoint - LocalPlayer.Transform.position;
float sqrMagnitude = v.sqrMagnitude;
v.y = 0f;
float num = -45f;
Vector3 rhs = v.RotateY(num);
Vector3 rhs2 = v.RotateY(-num);
int i = 0;
while (i < this.audibleSegments.Count)
{
int index = this.audibleSegments[i];
LinearEmitter.Segment segment = this.segments[index];
bool flag = false;
if (segment.sqrDistance >= sqrMagnitude)
{
Vector3 lhs = segment.closestPoint - LocalPlayer.Transform.position;
lhs.y = 0f;
if (Vector3.Dot(lhs, rhs) >= 0f && Vector3.Dot(lhs, rhs2) >= 0f)
{
this.SetSegmentOccluded(index, true);
int index2 = this.audibleSegments.Count - 1;
this.audibleSegments[i] = this.audibleSegments[index2];
this.audibleSegments.RemoveAt(index2);
flag = true;
}
}
if (!flag)
{
i++;
}
}
}
