// mark as alive:
// TODO - 1. chains with at least two shared liberities of alive stones
// DONE - 2. chains with at least one shared protected liberties neighboring an alive chain
public void MarkSafe(SafetyMap safetyMap, Color color)
{
bool lDone = false;
while (!lDone)
{
if (ProtectedLiberitiesLeft.Count == 0)
{
return;
}
List <int> lNewProtectedLiberitiesLeft = new List <int>(ProtectedLiberitiesLeft.Count);
foreach (int lIndex in ProtectedLiberitiesLeft)
{
bool lSafeNeighbor = false;
List <GoBlock> lNonSafeNeighbors = new List <GoBlock>();
foreach (int lNeighbor in Board.Coord.Neighbors[lIndex])
{
if (Board.Cells[lNeighbor].Color == color)
{
if (safetyMap[lNeighbor].IsAlive)
{
lSafeNeighbor = true;
}
else
if (!lNonSafeNeighbors.Contains((GoBlock)Board.Cells[lNeighbor].Block))
{
lNonSafeNeighbors.Add((GoBlock)Board.Cells[lNeighbor].Block);
}
}
}
if ((lSafeNeighbor) && (lNonSafeNeighbors.Count != 0))
{
foreach (GoBlock lGoBlock in lNonSafeNeighbors)
{
safetyMap.AddAliveBlock(lGoBlock);
}
}
if ((lSafeNeighbor) && (lNonSafeNeighbors.Count == 0))
{
lNewProtectedLiberitiesLeft.Add(lIndex);
}
}
lDone = (ProtectedLiberitiesLeft.Count == lNewProtectedLiberitiesLeft.Count);
ProtectedLiberitiesLeft = lNewProtectedLiberitiesLeft;
}
}
public void UpdateSafetyKnowledge(SafetyMap safetyMap)
{
foreach (GoBlock lGoBlock in Blocks.Keys)
{
safetyMap.AddAliveBlock(lGoBlock);
foreach (ColorEnclosedRegion lColorEnclosedRegion in Blocks[lGoBlock])
{
safetyMap.AddTerritoryBlocks(lColorEnclosedRegion.EmptyBlocks, Color);
safetyMap.AddDeadBlocks(lColorEnclosedRegion.InteriorAttackerBlocks);
}
}
}
// mark as alive:
// TODO - 1. chains with at least two shared liberities of alive stones
// DONE - 2. chains with at least one shared protected liberties neighboring an alive chain
public void MarkSafe(SafetyMap safetyMap, Color color)
{
bool lDone = false;
while (!lDone)
{
if (ProtectedLiberitiesLeft.Count == 0)
return;
List<int> lNewProtectedLiberitiesLeft = new List<int>(ProtectedLiberitiesLeft.Count);
foreach (int lIndex in ProtectedLiberitiesLeft)
{
bool lSafeNeighbor = false;
List<GoBlock> lNonSafeNeighbors = new List<GoBlock>();
foreach (int lNeighbor in Board.Coord.Neighbors[lIndex])
if (Board.Cells[lNeighbor].Color == color)
{
if (safetyMap[lNeighbor].IsAlive)
lSafeNeighbor = true;
else
if (!lNonSafeNeighbors.Contains((GoBlock)Board.Cells[lNeighbor].Block))
lNonSafeNeighbors.Add((GoBlock)Board.Cells[lNeighbor].Block);
}
if ((lSafeNeighbor) && (lNonSafeNeighbors.Count != 0))
foreach (GoBlock lGoBlock in lNonSafeNeighbors)
safetyMap.AddAliveBlock(lGoBlock);
if ((lSafeNeighbor) && (lNonSafeNeighbors.Count == 0))
lNewProtectedLiberitiesLeft.Add(lIndex);
}
lDone = (ProtectedLiberitiesLeft.Count == lNewProtectedLiberitiesLeft.Count);
ProtectedLiberitiesLeft = lNewProtectedLiberitiesLeft;
}
}
public void UpdateSafetyKnowledge(SafetyMap safetyMap)
{
foreach (GoBlock lGoBlock in Blocks.Keys)
{
safetyMap.AddAliveBlock(lGoBlock);
foreach (ColorEnclosedRegion lColorEnclosedRegion in Blocks[lGoBlock])
{
safetyMap.AddTerritoryBlocks(lColorEnclosedRegion.EmptyBlocks, Color);
safetyMap.AddDeadBlocks(lColorEnclosedRegion.InteriorAttackerBlocks);
}
}
}
