public static StageBits Mutate(this StageBits stageBits, IRando randy, double mutationRate)
{
return(new StageBits(
order: stageBits.Order,
mask: stageBits.Mask.AsEnumerable().Mutate(randy, mutationRate).First(),
bits: stageBits.Bits.Mutate(randy, mutationRate)
));
}
public static SbScratchPad ToSbScratchPad(this StageBits stageBits)
{
var overlaps = stageBits.Order.SquareArrayCoords()
.Select(t =>
new SbSpItem(row: t.Item1,
col: t.Item2,
overlap: stageBits.Overlap(row: t.Item1, col: t.Item2)));
var scratchPad = new SbScratchPad(
overlaps: overlaps,
order: stageBits.Order);
return(scratchPad);
}
public static IPermutation ToPermutation(this StageBits stageBits)
{
var permArray = 0u.CountUp(stageBits.Order).ToArray();
var sbScratchPad = stageBits.ToSbScratchPad();
//System.Diagnostics.Debug.WriteLine(sbScratchPad.PrintOverlaps());
//System.Diagnostics.Debug.WriteLine(sbScratchPad.PrintUsed());
while (!sbScratchPad.IsSpent())
{
var dSbSp = sbScratchPad.BestOnDiag();
dSbSp.IsUsed = true;
var bSpSp = sbScratchPad.BestOnCol(dSbSp.Col);
permArray[bSpSp.Col] = bSpSp.Row;
permArray[bSpSp.Row] = bSpSp.Col;
sbScratchPad.Mark(bSpSp, stageBits.Order);
// System.Diagnostics.Debug.WriteLine(sbScratchPad.PrintUsed());
}
return(PermutationEx.MakePermutation(permArray));
}
public static ISorterStage ToSorterStage(this StageBits stageBits, uint stageNumber)
{
return(stageBits.ToPermutation().ToSorterStage(stageNumber));
}
