public void SetLinearRolloff(double minDistance, double maxDistance)
{
if (maxDistance < minDistance)
{
maxDistance = minDistance;
}
if (rolloffGraph == null || rolloffGraph.Length != 2)
{
rolloffGraph = new RolloffGraphItem[2];
}
rolloffGraph[0] = new RolloffGraphItem(minDistance, 1);
rolloffGraph[1] = new RolloffGraphItem(maxDistance, 0);
}
public void SetLogarithmicRolloff(double minDistance, double maxDistance, double rolloffFactor)
{
//!!!!slowly
if (maxDistance < minDistance)
{
maxDistance = minDistance;
}
int count = 10;
if (rolloffGraph == null || rolloffGraph.Length != count)
{
rolloffGraph = new RolloffGraphItem[count];
}
rolloffGraph[0] = new RolloffGraphItem(minDistance, 1);
rolloffGraph[count - 1] = new RolloffGraphItem(maxDistance, 0);
double distanceOffset = (maxDistance - minDistance) * .5f;
for (int index = count - 2; index >= 1; index--)
{
double distance = minDistance + distanceOffset;
double divisor = minDistance + rolloffFactor * distanceOffset;
double gain;
if (divisor != 0)
{
gain = minDistance / divisor;
}
else
{
gain = 1;
}
MathEx.Saturate(ref gain);
rolloffGraph[index] = new RolloffGraphItem(distance, gain);
distanceOffset *= .5f;
}
}
