public BitPlane Xor(BitPlane bitPlane)
{
var result = new BitPlane(Width, Height);
result.bitArray = bitArray.Xor(bitPlane.bitArray);
return(result);
}
public BitPlane Copy()
{
var bitPlaneCopy = new BitPlane(Width, Height);
bitPlaneCopy.bitArray = bitArray.Clone() as BitArray;
return(bitPlaneCopy);
}
public void EnsureDeadStones()
{
if (DeadStones == null)
{
DeadStones = new BitPlane(boardSize);
}
}
public static BitPlane operator -(BitPlane leftPlane, BitPlane rightPlane)
{
var result = new BitPlane(leftPlane.Width, leftPlane.Height);
for (var i = 0; i < leftPlane.bitArray.Count; i++)
{
if (leftPlane.bitArray[i] && !rightPlane.bitArray[i])
{
result.bitArray[i] = true;
}
else
{
result.bitArray[i] = false;
}
}
return(result);
}
public bool GroupIsDead(Stone stone)
{
if (HasStone(stone))
{
var bitPlane = new BitPlane(Black.Width,
Black.Height);
var stonesToCheck = new List <Stone>();
stonesToCheck.Add(stone);
while (stonesToCheck.Count > 0)
{
var thisStone = stonesToCheck[0];
if (!bitPlane[thisStone.X, thisStone.Y])
{
bitPlane[thisStone.X, thisStone.Y] = true;
var nextStone = thisStone.TopStone();
if (HasStone(nextStone))
{
stonesToCheck.Add(nextStone);
}
else
{
if (StoneInBounds(nextStone.OtherColorStone()) &&
!HasStone(nextStone.OtherColorStone()))
{
return(false);
}
}
nextStone = thisStone.LeftStone();
if (HasStone(nextStone))
{
stonesToCheck.Add(nextStone);
}
else
{
if (StoneInBounds(nextStone.OtherColorStone()) &&
!HasStone(nextStone.OtherColorStone()))
{
return(false);
}
}
nextStone = thisStone.BottomStone();
if (HasStone(nextStone))
{
stonesToCheck.Add(nextStone);
}
else
{
if (StoneInBounds(nextStone.OtherColorStone()) &&
!HasStone(nextStone.OtherColorStone()))
{
return(false);
}
}
nextStone = thisStone.RightStone();
if (HasStone(nextStone))
{
stonesToCheck.Add(nextStone);
}
else
{
if (StoneInBounds(nextStone.OtherColorStone()) &&
!HasStone(nextStone.OtherColorStone()))
{
return(false);
}
}
stonesToCheck.Remove(thisStone);
}
else
{
stonesToCheck.Remove(thisStone);
}
}
return(true);
}
return(false);
}
public Board(byte boardSize)
{
Black = new BitPlane(boardSize);
White = new BitPlane(boardSize);
}