//Just for testing the to-be dll:
static void Main()
{
//Stopwatch stopwatch = Stopwatch.StartNew();
var Boardy = new Board(new StdChessStartState());
var aa = new pos(3, 3);
var TestFigure = new Pawn(Boardy.state, new pos(2, 1), Color.black);
var TestFigure2 = new Pawn(Boardy.state, new pos(2, 6), Color.white);
var bb = new Lpos();
var cc = new Lpos();
for (int i = 0; i < 1; i++)
{
bb = TestFigure.PossibleFieldsToMove();
cc = TestFigure2.PossibleFieldsToMove();
}
var jj = Boardy.state;
jj[3, 0] = FigID.empty;
jj[4, 4] = FigID.empty;
jj[4, 5] = FigID.wPawnEnPassantable;
Boardy.TryMove(new pos(1, 0), new pos(2, 2), FigID.wKnight);
Boardy.TryRevertLastMove();
Boardy.TryMove(new pos(1, 0), new pos(2, 2), FigID.wKnight);
//stopwatch.Stop();
//Console.WriteLine(stopwatch.ElapsedMilliseconds);
}
protected Lpos BlackPawnMoves()
{
var retVal = new Lpos();
if (AllowExecution())
{
switch (position.Item2)
{
case 6: //Starting Position
if (state[position.Item1, position.Item2 - 1] == FigID.empty)
{
retVal.AddRange(PawnWithoutSpecials(Color.white));
//Can move 2 fields since at starting position:
if (state[position.Item1, position.Item2 - 2] == FigID.empty)
{
retVal.Add(new pos(position.Item1, (byte)(position.Item2 - 2)));
}
}
break;
case 3: //En Passant capture possible
retVal.AddRange(PawnWithoutSpecials(Color.white));
retVal.AddRange(PawnEnPassantCapture(FigID.wPawnEnPassantable));
break;
case var n when(0 < n && n < ywidth - 2):
retVal.AddRange(PawnWithoutSpecials(Color.white));
break;
}
}
return(retVal);
}
//----------------------------------
// Possibly more than one field
//----------------------------------
protected Lpos Up()
{
var retVal = new Lpos();
if (AllowExecution())
{
for (int i = position.Item2 + 1; i < ywidth; i++)
{
if (state[position.Item1, i] == FigID.empty)
{
//Empty field, Color = none
retVal.Add(new pos(position.Item1, (byte)i));
continue;
}
else if (state.ColorOfField(position.Item1, i) != team)
{
//Opposite team field
retVal.Add(new pos(position.Item1, (byte)i));
break;
}
else
{
//Same team field
break;
}
}
}
return(retVal);
}
protected Lpos NorthWest()
{
var retVal = new Lpos();
if (AllowExecution())
{
int xPos, yPos;
for (int i = 1; position.Item1 - i >= 0 && position.Item2 + i < ywidth; i++)
{
xPos = position.Item1 - i;
yPos = position.Item2 + i;
if (state[xPos, yPos] == FigID.empty)
{
//Empty field, Color = none
retVal.Add(new pos((byte)xPos, (byte)yPos));
continue;
}
else if (state.ColorOfField(xPos, yPos) != team)
{
//Opposite team field
retVal.Add(new pos((byte)xPos, (byte)yPos));
break;
}
else
{
//Same team field
break;
}
}
}
return(retVal);
}
protected Lpos Left()
{
var retVal = new Lpos();
if (AllowExecution())
{
for (int i = position.Item1 - 1; i >= 0; i--)
{
if (state[i, position.Item2] == FigID.empty)
{
//Empty field, Color = none
retVal.Add(new pos((byte)i, position.Item2));
continue;
}
else if (state.ColorOfField(i, position.Item2) != team)
{
//Opposite team field
retVal.Add(new pos((byte)i, position.Item2));
break;
}
else
{
//Same team field
break;
}
}
}
return(retVal);
}
private Lpos PawnEnPassantCapture(FigID oppositeFigID)
{
var retVal = new Lpos();
if (position.Item1 < xwidth - 1 && state[position.Item1 + 1, position.Item2] == oppositeFigID)
{
retVal.Add(new pos((byte)(position.Item1 + 1), (byte)(position.Item2 + 1)));
}
if (position.Item1 > 0 && state[position.Item1 - 1, position.Item2] == oppositeFigID)
{
retVal.Add(new pos((byte)(position.Item1 - 1), (byte)(position.Item2 + 1)));
}
return(retVal);
}
private Lpos PawnWithoutSpecials(Color oppositeColor)
{
var retVal = new Lpos();
if (state[position.Item1, position.Item2 + teamSign] == FigID.empty)
{
retVal.Add(new pos(position.Item1, (byte)(position.Item2 + teamSign)));
}
if (position.Item1 < xwidth - 1 && state.ColorOfField(position.Item1 + 1, position.Item2 + teamSign) == oppositeColor)
{
retVal.Add(new pos((byte)(position.Item1 + 1), (byte)(position.Item2 + teamSign)));
}
if (position.Item1 > 0 && state.ColorOfField(position.Item1 - 1, position.Item2 + teamSign) == oppositeColor)
{
retVal.Add(new pos((byte)(position.Item1 - 1), (byte)(position.Item2 + teamSign)));
}
return(retVal);
}
//----------------------------------
// Special Movement
//----------------------------------
protected Lpos KnightJumps()
{
var retVal = new Lpos();
if (AllowExecution())
{
int xPos = position.Item1, yPos = position.Item2;
//Western Hemisphere
if (xPos - 2 >= 0)
{
if (yPos - 2 >= 0)
{
//-2,-1
//-1,-2
if (state.ColorOfField(xPos - 2, yPos - 1) != team)
{
retVal.Add(new pos((byte)(xPos - 2), (byte)(yPos - 1)));
}
if (state.ColorOfField(xPos - 1, yPos - 2) != team)
{
retVal.Add(new pos((byte)(xPos - 1), (byte)(yPos - 2)));
}
}
else if (yPos - 1 >= 0)
{
//-2,-1
if (state.ColorOfField(xPos - 2, yPos - 1) != team)
{
retVal.Add(new pos((byte)(xPos - 2), (byte)(yPos - 1)));
}
}
if (yPos + 2 < ywidth)
{
//-2,1
//-1,2
if (state.ColorOfField(xPos - 2, yPos + 1) != team)
{
retVal.Add(new pos((byte)(xPos - 2), (byte)(yPos + 1)));
}
if (state.ColorOfField(xPos - 1, yPos + 2) != team)
{
retVal.Add(new pos((byte)(xPos - 1), (byte)(yPos + 2)));
}
}
else if (yPos + 1 < ywidth)
{
//-2,1
if (state.ColorOfField(xPos - 2, yPos + 1) != team)
{
retVal.Add(new pos((byte)(xPos - 2), (byte)(yPos + 1)));
}
}
}
else if (xPos - 1 >= 0)
{
if (yPos - 2 >= 0)
{
//-1,-2
if (state.ColorOfField(xPos - 1, yPos - 2) != team)
{
retVal.Add(new pos((byte)(xPos - 1), (byte)(yPos - 2)));
}
}
if (yPos + 2 < ywidth)
{
//-1,2
if (state.ColorOfField(xPos - 1, yPos + 2) != team)
{
retVal.Add(new pos((byte)(xPos - 1), (byte)(yPos + 2)));
}
}
}
//Eastern Hemisphere
if (xPos + 2 < xwidth)
{
if (yPos - 2 >= 0)
{
//2,-1
//1,-2
if (state.ColorOfField(xPos + 2, yPos - 1) != team)
{
retVal.Add(new pos((byte)(xPos + 2), (byte)(yPos - 1)));
}
if (state.ColorOfField(xPos + 1, yPos - 2) != team)
{
retVal.Add(new pos((byte)(xPos + 1), (byte)(yPos - 2)));
}
}
else if (yPos - 1 >= 0)
{
//2,-1
if (state.ColorOfField(xPos + 2, yPos - 1) != team)
{
retVal.Add(new pos((byte)(xPos + 2), (byte)(yPos - 1)));
}
}
if (yPos + 2 < ywidth)
{
//2,1
//1,2
if (state.ColorOfField(xPos + 2, yPos + 1) != team)
{
retVal.Add(new pos((byte)(xPos + 2), (byte)(yPos + 1)));
}
if (state.ColorOfField(xPos + 1, yPos + 2) != team)
{
retVal.Add(new pos((byte)(xPos + 1), (byte)(yPos + 2)));
}
}
else if (yPos + 1 < ywidth)
{
//2,1
if (state.ColorOfField(xPos + 2, yPos + 1) != team)
{
retVal.Add(new pos((byte)(xPos + 2), (byte)(yPos + 1)));
}
}
}
else if (xPos + 1 < xwidth)
{
if (yPos - 2 >= 0)
{
//1,-2
if (state.ColorOfField(xPos + 1, yPos - 2) != team)
{
retVal.Add(new pos((byte)(xPos + 1), (byte)(yPos - 2)));
}
}
if (yPos + 2 < ywidth)
{
//1,2
if (state.ColorOfField(xPos + 1, yPos + 2) != team)
{
retVal.Add(new pos((byte)(xPos + 1), (byte)(yPos + 2)));
}
}
}
}
return(retVal);
}
