protected void Clear()
{
AllBlocks = new List <GoBlockBase>();
GoEmptyBlock lEmptyBlock = new GoEmptyBlock(this);
UndoStack = new UndoStack(this);
Turn = Color.Black;
ZobrishHashes = new Dictionary <ZobristHash, int>();
LastMove = CoordinateSystem.PASS;
MoveList = new List <KeyValuePair <Color, int> >();
SimpleKoPoint = CoordinateSystem.PASS;
MoveNbr = 0;
Komi = 0;
GameOver = false;
CapturedStoneCnt = new int[2];
ColorEnclosedRegions = null;
SafetyStatusMap = null;
ZobristHash = new ZobristHash();
Cells = new GoCell[Coord.BoardArea];
for (int i = 0; i < Coord.BoardArea; i++)
{
Cells[i] = new GoCell(i, this, lEmptyBlock);
}
for (int i = 0; i < Coord.BoardArea; i++)
{
Cells[i].SetNeighbors();
}
}
public void Undo()
{
int lUndoMove = LastMove;
ColorEnclosedRegions = null;
SafetyStatusMap = null;
UndoStack.Undo();
if (ZobrishHashes.Count > 0)
{
int lMove;
if (!ZobrishHashes.TryGetValue(ZobristHash, out lMove))
{
return;
}
if (lMove == MoveNbr)
{
ZobrishHashes.Remove(ZobristHash);
}
}
//#if DEBUG
// if (!_SelfTest())
// Console.WriteLine("GoBoard::_SelfTest() Failed");
//#endif
}
protected void SolveSafety()
{
CreateEnclosedRegions();
if (SafetyStatusMap == null)
{
SafetyStatusMap = new SafetyMap(this, SafetySolver);
}
}
// 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);
}
}
}
public GoBoardUndoState(GoBoard goBoard)
{
Turn = goBoard.Turn;
SimpleKoPoint = goBoard.SimpleKoPoint;
Komi = goBoard.Komi;
CapturedStoneCnt0 = goBoard.CapturedStoneCnt[0];
CapturedStoneCnt1 = goBoard.CapturedStoneCnt[1];
LastMove = goBoard.LastMove;
SafetyStatusMap = goBoard.SafetyStatusMap;
GameOver = goBoard.GameOver;
ColorEnclosedRegions = goBoard.ColorEnclosedRegions;
}
public GoBoardUndoState(GoBoard goBoard)
{
Turn = goBoard.Turn;
SimpleKoPoint = goBoard.SimpleKoPoint;
Komi = goBoard.Komi;
CapturedStoneCnt0 = goBoard.CapturedStoneCnt[0];
CapturedStoneCnt1 = goBoard.CapturedStoneCnt[1];
LastMove = goBoard.LastMove;
SafetyStatusMap = goBoard.SafetyStatusMap;
GameOver = goBoard.GameOver;
ColorEnclosedRegions = goBoard.ColorEnclosedRegions;
}
public int CountSafePoints(Color color, SafetySolverType pSafetySolverType)
{
if ((SafetyStatusMap != null) && (SafetyStatusMap.SafetySolverType == pSafetySolverType))
{
CreateEnclosedRegions();
return(SafetyStatusMap.CountSafePoints(color));
}
else
{
ColorEnclosedRegions lColorEnclosedRegions = ColorEnclosedRegions;
ColorEnclosedRegions = null;
CreateEnclosedRegions();
SafetyMap lSafetyStatusMap = new SafetyMap(this, pSafetySolverType);
ColorEnclosedRegions = lColorEnclosedRegions;
return(lSafetyStatusMap.CountSafePoints(color));
}
}
// 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 bool PlayStone(int index, Color color, bool allowUndo)
{
if (!IsLegal(index, color))
return false;
if (allowUndo)
{
UndoStack.Mark();
UndoStack.Add(new GoBoardUndoState(this));
}
else
UndoStack.Clear();
if (index == CoordinateSystem.RESIGN)
GameOver = true;
if ((index == CoordinateSystem.PASS) && (LastMove == CoordinateSystem.PASS) && (MoveNbr > 0))
GameOver = true;
ColorEnclosedRegions = null;
SafetyStatusMap = null;
// set turn
Turn = color;
LastMove = index;
MoveList.Add(new KeyValuePair<Color, int>(color, index));
// save hash
if (LastMove != CoordinateSystem.PASS)
if (!ZobrishHashes.ContainsKey(ZobristHash))
ZobrishHashes.Add(ZobristHash.Clone(), MoveNbr);
// increment move number
MoveNbr++;
// Console.WriteLine("# " + MoveNbr + " " + color.ToString() + " " + Coord.ToString(index));
// Dump();
SimpleKoPoint = CoordinateSystem.PASS;
if (!(index == CoordinateSystem.PASS) || (index == CoordinateSystem.RESIGN))
{
// update blocks
ExecutePlay(index, color, allowUndo);
}
//#if DEBUG
// if (!_SelfTest())
// Console.WriteLine("GoBoard::_SelfTest() Failed");
//#endif
return true;
}
public void UpdateSafetyKnowledge(SafetyMap safetyMap)
{
SafetySolver.UpdateSafetyKnowledge(safetyMap);
MarkSafe(safetyMap, Color);
}
public void UpdateSafetyKnowledge(SafetyMap safetyMap)
{
}
public void UpdateSafetyKnowledge(SafetyMap safetyMap)
{
SafetySolver.UpdateSafetyKnowledge(safetyMap);
MarkSafe(safetyMap, Color);
}
public void Undo()
{
int lUndoMove = LastMove;
ColorEnclosedRegions = null;
SafetyStatusMap = null;
UndoStack.Undo();
if (ZobrishHashes.Count > 0)
{
int lMove;
if (!ZobrishHashes.TryGetValue(ZobristHash, out lMove))
return;
if (lMove == MoveNbr)
ZobrishHashes.Remove(ZobristHash);
}
//#if DEBUG
// if (!_SelfTest())
// Console.WriteLine("GoBoard::_SelfTest() Failed");
//#endif
}
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);
}
}
}
public void SetSafetySolver(SafetySolverType pSafetySolverType)
{
SafetySolver = pSafetySolverType;
SafetyStatusMap = null;
ColorEnclosedRegions = null;
}
public void SetSafetySolver(SafetySolverType pSafetySolverType)
{
SafetySolver = pSafetySolverType;
SafetyStatusMap = null;
ColorEnclosedRegions = null;
}
protected void Clear()
{
AllBlocks = new List<GoBlockBase>();
GoEmptyBlock lEmptyBlock = new GoEmptyBlock(this);
UndoStack = new UndoStack(this);
Turn = Color.Black;
ZobrishHashes = new Dictionary<ZobristHash, int>();
LastMove = CoordinateSystem.PASS;
MoveList = new List<KeyValuePair<Color, int>>();
SimpleKoPoint = CoordinateSystem.PASS;
MoveNbr = 0;
Komi = 0;
GameOver = false;
CapturedStoneCnt = new int[2];
ColorEnclosedRegions = null;
SafetyStatusMap = null;
ZobristHash = new ZobristHash();
Cells = new GoCell[Coord.BoardArea];
for (int i = 0; i < Coord.BoardArea; i++)
Cells[i] = new GoCell(i, this, lEmptyBlock);
for (int i = 0; i < Coord.BoardArea; i++)
Cells[i].SetNeighbors();
}
public void UpdateSafetyKnowledge(SafetyMap safetyMap)
{
}
public bool PlayStone(int index, Color color, bool allowUndo)
{
if (!IsLegal(index, color))
{
return(false);
}
if (allowUndo)
{
UndoStack.Mark();
UndoStack.Add(new GoBoardUndoState(this));
}
else
{
UndoStack.Clear();
}
if (index == CoordinateSystem.RESIGN)
{
GameOver = true;
}
if ((index == CoordinateSystem.PASS) && (LastMove == CoordinateSystem.PASS) && (MoveNbr > 0))
{
GameOver = true;
}
ColorEnclosedRegions = null;
SafetyStatusMap = null;
// set turn
Turn = color;
LastMove = index;
MoveList.Add(new KeyValuePair <Color, int>(color, index));
// save hash
if (LastMove != CoordinateSystem.PASS)
{
if (!ZobrishHashes.ContainsKey(ZobristHash))
{
ZobrishHashes.Add(ZobristHash.Clone(), MoveNbr);
}
}
// increment move number
MoveNbr++;
// Console.WriteLine("# " + MoveNbr + " " + color.ToString() + " " + Coord.ToString(index));
// Dump();
SimpleKoPoint = CoordinateSystem.PASS;
if (!(index == CoordinateSystem.PASS) || (index == CoordinateSystem.RESIGN))
{
// update blocks
ExecutePlay(index, color, allowUndo);
}
//#if DEBUG
// if (!_SelfTest())
// Console.WriteLine("GoBoard::_SelfTest() Failed");
//#endif
return(true);
}
public int CountSafePoints(Color color, SafetySolverType pSafetySolverType)
{
if ((SafetyStatusMap != null) && (SafetyStatusMap.SafetySolverType == pSafetySolverType))
{
CreateEnclosedRegions();
return SafetyStatusMap.CountSafePoints(color);
}
else
{
ColorEnclosedRegions lColorEnclosedRegions = ColorEnclosedRegions;
ColorEnclosedRegions = null;
CreateEnclosedRegions();
SafetyMap lSafetyStatusMap = new SafetyMap(this, pSafetySolverType);
ColorEnclosedRegions = lColorEnclosedRegions;
return lSafetyStatusMap.CountSafePoints(color);
}
}
protected void SolveSafety()
{
CreateEnclosedRegions();
if (SafetyStatusMap == null)
SafetyStatusMap = new SafetyMap(this, SafetySolver);
}