private void UpdatePos(ref Piece[,] board, int x, int y)
{
board[Position.X, Position.Y] = null;
Sprite.Position = new Vector2f(x* 65, y * 65);
Position = new Vector2i(x, y);
}
/// <summary>
/// Returns an integer telling what has occured.
///
/// </summary>
/// <param name="board"></param>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns>1 = Cannot Move, 2 = Moved, 3 = Taken a piece and moved.</returns>
virtual public int MoveTo(ref Piece[,] board, int x, int y)
{
if ((x < 0) || (x > 7)) return 1;
if ((y < 0) || (y > 7)) return 1;
foreach (var move in Moves)
{
Vector2i newPosition;
newPosition.X = Position.X + move.Key.X;
newPosition.Y = Position.Y + move.Key.Y;
if (newPosition.X != x) continue;
if (newPosition.Y != y) continue;
// we know he's trying to do a legal move.
var entryAtNewPos = board[newPosition.X, newPosition.Y];
if (entryAtNewPos == null)
{
// nobody there can we move there?
switch (move.Value)
{
case 3:
case 1:
board[newPosition.X, newPosition.Y] = this;
UpdatePos(ref board, newPosition.X, newPosition.Y);
return 2;
case 2:
return 1;
}
}
else if (entryAtNewPos.Colour != Colour)
{
// there's somewhere there, can we take it tho?
switch (move.Value)
{
case 1:
return 1;
case 3:
case 2:
board[newPosition.X, newPosition.Y] = this;
UpdatePos(ref board, newPosition.X, newPosition.Y);
return 3;
}
}
else if (entryAtNewPos.Colour == Colour)
{
return 1;
}
}
return 1;
}
public override int MoveTo(ref Piece[,] board, int x, int y)
{
var movementId = base.MoveTo(ref board, x, y);
_hasMoved = true;
if (_hasMoved != true) return movementId;
foreach (var pair in Moves.Where(pair => (pair.Key.Y == 2) || (pair.Key.Y == -2)))
{
// remove eet
Moves.Remove(pair.Key);
break;
}
return movementId;
}
void OnMousePressed(object sender, MouseButtonEventArgs e)
{
// Get piece at coordinates.
var place = _board[e.X / 65, e.Y / 65];
// Either move or take piece.
if (SecondClick)
{
// toggle off
if (place == _selectedPiece)
{
SecondClick = false;
}
// If second click is an empty space, try to move piece. will return false is failure.
var moved = _selectedPiece.MoveTo(ref _board, e.X / 65, e.Y / 65);
switch (moved)
{
case 3:
if (_turnColour == Colours.White)
{
BlackNumberOfPieces--;
UpdateTitle();
}
else
{
WhiteNumberOfPieces--;
UpdateTitle();
}
break;
case 1:
return;
}
_turnColour = _turnColour == Colours.White ? Colours.Black : Colours.White;
UpdateTitle();
}
else
{
// Just piece selection.
if (place != null)
{
// there is a piece here.
if (place.Colour == _turnColour)
{
// its the turns type of piece.
_selectedPiece = place;
}
else
{
// do nothing.
return;
}
}
else
{
// do nothing.
return;
}
}
SecondClick = !SecondClick;
}
public KingCastleMove(Piece piece, Square target, CastleType castle)
: base(piece, target)
{
this.Castle = castle;
}