bool GoSafetySolver::FindSurroundedSingleRegion(SgBWSet* safe,
SgBlackWhite color)
{
SgPointSet anySafe(safe->Both());
for (SgVectorIteratorOf<GoRegion>
it(Regions()->AllRegions(color)); it; ++it)
{
GoRegion* r = *it;
if ( ! r->GetFlag(GO_REGION_SAFE)
&& r->SomeBlockIsSafe()
&& ! r->Points().Overlaps(anySafe)
&& GoSafetyUtil::ExtendedIsTerritory(Board(), Regions(),
r->PointsPlusInteriorBlocks(),
(*safe)[color],
color)
)
{
GoSafetyUtil::AddToSafe(Board(), r->Points(), color, safe,
"surr-safe-1", 0, true);
Regions()->SetSafeFlags(*safe);
return true;
}
}
return false;
}
void GoRegionBoard::OnExecutedUncodedMove(int move, SgBlackWhite moveColor)
{
if (DEBUG_REGION_BOARD)
SgDebug() << "OnExecutedUncodedMove " << SgWritePoint(move) << '\n';
{
m_stack.StartMoveInfo();
if (move != SG_PASS)
{
SG_ASSERT(! Board().LastMoveInfo(GO_MOVEFLAG_SUICIDE));
// can't handle yet,
// should be forbidden anyway. @todo allowed in Chinese rules.
bool fWasCapture = Board().LastMoveInfo(GO_MOVEFLAG_CAPTURING);
UpdateBlock(move, moveColor);
{
GoRegion* r = PreviousRegionAt(move, moveColor);
bool split = GoEyeUtil::IsSplitPt(move, r->Points());
r->OnAddStone(move);
PushStone(r, move);
SgPointSet points = r->Points();
// needed even after RemoveRegion(r).
if (split || points.IsEmpty())
// must remove old region before generating new ones,
// because removing clears m_anchor[]
RemoveRegion(r);
if (split) // find new regions
{
for (SgConnCompIterator it(points, Board().Size());
it; ++it)
GenRegion(*it, moveColor);
}
}
if (fWasCapture)
{
// FindNewNeighborRegions(move, moveColor);
MergeAdjacentAndAddBlock(move, SgOppBW(moveColor));
}
m_code = Board().GetHashCode();
if (HEAVYCHECK)
CheckConsistency();
}
}
{
for (SgBWIterator it; it; ++it)
{
SgBlackWhite color(*it);
for (SgVectorIteratorOf<GoRegion> it(AllRegions(color)); it; ++it)
{ GoRegion* r1 = *it;
if (! r1->IsValid())
r1->ComputeBasicFlags();
}
}
}
}