protected void GetRegionIndexes( Vector3 point, out ushort x, out ushort y, out ushort z )
{
// Scale the point into multiples of region and adjust for origin
Vector3 scaledPoint = ( point - origin ) / regionDimensions;
// Round down to 'bottom left' point which represents the cell index
int ix = (int)System.Math.Floor( scaledPoint.x );
int iy = (int)System.Math.Floor( scaledPoint.y );
int iz = (int)System.Math.Floor( scaledPoint.z );
// Check bounds
if ( ix < regionMinIndex || ix > regionMaxIndex
|| iy < regionMinIndex || iy > regionMaxIndex
|| iz < regionMinIndex || iz > regionMaxIndex )
{
throw new Exception( "Point out of bounds in StaticGeometry.GetRegionIndexes" );
}
// Adjust for the fact that we use unsigned values for simplicity
// (requires less faffing about for negatives give 10-bit packing
x = (ushort)( ix + regionHalfRange );
y = (ushort)( iy + regionHalfRange );
z = (ushort)( iz + regionHalfRange );
}
