private void ThermalErosion(object sender, DoWorkEventArgs e)
{
BackgroundWorker worker = sender as BackgroundWorker;
for (int p = 0; p < tErodePasses; p++)
{
if (worker.CancellationPending)
{
e.Cancel = true;
break;
}
worker.ReportProgress(p * 100 / tErodePasses);
terrain.thermalErosion(talusAngle);
}
}