public void CheckDiscardCandidateFollowingSingleOptions(Candidate k, out Requirement c, out int o)
{
if (k != null)
{
DiscardCandidate(k);
}
int sc = tsc;
c = FollowSingleOptions();
o = 1;
if (c != null)
{
o = c.s;
}
while (tsc > sc)
{
UnselectCandidate();
}
UndiscardCandidate(k);
}
public void CheckSelectCandidateFollowingSingleOptions(Candidate k, out Requirement c, out int o, out int steps)
{
int sc = tsc;
if (k != null)
{
SelectCandidate(k);
}
c = FollowSingleOptions();
steps = tsc - sc;
o = 1;
if (c != null)
{
o = c.s;
}
while (tsc > sc)
{
UnselectCandidate();
}
}
public void AddCandidate(Requirement c)
{
Tile t = new Tile();
t.k = this;
if (tile == null)
{
tile = t;
}
else
{
tile.r.l = t;
t.r = tile.r;
tile.r = t;
t.l = tile;
}
t.c = c;
c.s++;
t.d = c.d;
c.d.u = t;
c.d = t;
t.u = c;
t.included = true;
}
/*
* public static Tile AddToCandidate<C>(Tile x, Requirement c)
* {
* Tile t = new Tile();
* t.ClearTile();
* if (x != null)
* {
* x.r.l = t;
* t.r = x.r;
* x.r = t;
* t.l = x;
* }
* t.c = c;
* c.s++;
* t.d = c.d;
* c.d.u = t;
* c.d = t;
* t.u = c;
* t.included = true;
* return t;
* }
*/
protected void ClearTile()
{
l = r = u = d = this;
c = null;
included = false;
}
public ImpossibleHint(Requirement c)
{
this.c = c;
}
public SelectableHint(Candidate r, Requirement c)
{
this.r = r;
this.c = c;
}
public DiscardableHint(Candidate r, Requirement c, bool eventual)
{
this.r = r;
this.c = c;
this.eventual = eventual;
}
public override void PaintBackground(HintPainter context)
{
Requirement.PaintBackground(context, Hint.Kind.AmongMust);
Candidate.PaintBackground(context, Hint.Kind.Must);
}
public ForcedMoveHint(Requirement c, Candidate r)
{
this.c = c;
this.r = r;
}