private FaceSet faceSetAt(AlignedCoord alco, Direction dir)
{
int index = indexOfFaceSetAtCoord(alco, dir);
// bug ("got the index: " + index);
if (index < 0)
{
return(null);
}
try {
return(faceSets[index]);
} catch (ArgumentOutOfRangeException e) {
throw new Exception("index was out of range: index was: " + index + " aligned coord: " + alco.toString() + "direction: " + dir);
}
return(null);
}
private int indexOfFaceSetAtCoord(AlignedCoord coord, Direction dir)
{
int nudge_lookup = ((int)dir % 2 == 0) ? 0 : 1; // pos dirs are 0, 2 and 4
int ret;
try {
ret = faceSetTable[coord.across * 2 + nudge_lookup, coord.up] - FaceAggregator.FACETABLE_LOOKUP_SHIFT;
}
catch (IndexOutOfRangeException e)
{
throw new Exception("this index was: across " + (coord.across * 2 + nudge_lookup) + " up: " + coord.up + ". face table length was: dim 0: " + faceSetTable.GetLength(0) + " 1 " + faceSetTable.GetLength(1) + " coord was " + coord.toString() + "Direction was: " + dir + " my face axis is: " + faceNormal);
}
return(ret);
}
