private void piece_Move(object sender, PieceEventArgs e)
{
if (e.NewSquarePiece.HasValue)
{
xt.Item(AllPieces, e.NewSquarePiece.Value).Kill(board, killed, oppKilled);
}
Piece p = xt.Item(AllPieces, (sender as Piece).Id);
bool castling = p.Id.Who == Who.King && Math.Abs(e.NewSquare.X - p.Square.X) > 1;
bool originatesHere = AllPieces.Contains(sender as Piece);
moved.Add(p.Id);
p.Square.Piece = null;
p.Square = AllSquares[e.NewSquare.X, e.NewSquare.Y];
if (!castling)
{
blacksTurn = !blacksTurn;
}
else if (originatesHere)
{
Piece rook = xt.Item(AllPieces, AllSquares[e.NewSquare.X >= 4 ? 8 : 1, p.Square.Y].Piece.Value);
Square rookTo = AllSquares[e.NewSquare.X + (e.NewSquare.X >= 4 ? -1 : 1), p.Square.Y];
piece_Move(rook, new PieceEventArgs(rookTo));
}
if (originatesHere && null != PieceMove)
{
PieceMove(sender, e);
}
}
private void piece_BeforeMove(object sender, PieceEventArgs e)
{
Piece piece = sender as Piece;
board.FindForm().Text = string.Format("Moving {0} from {1}", piece.Name, piece.Square.Name);
if (piece.Id.Black != blacksTurn || (null != otherBoard && blacksTurn != inverted))
{
return;
}
MoveResolver.Resolve(e.Options, piece, AllSquares, moved);
}
void ui_MouseDown(object sender, MouseEventArgs e)
{
if (null == BeforeMove)
{
return;
}
ev = new PieceEventArgs();
BeforeMove(this, ev);
if (!ev.Movable)
{
return;
}
moving = true;
ui.BringToFront();
starting = xt.Subtract(Control.MousePosition, ui.Location);
Selected = true;
foreach (var item in ev.Options)
{
item.Hide = true;
}
}
void ui_MouseUp(object sender, MouseEventArgs e)
{
if (null == BeforeMove)
{
return;
}
Selected = false;
if (ev == null)
{
return;
}
foreach (var item in ev.Options)
{
item.Hide = false;
}
bool found = false;
foreach (var item in ev.Options)
{
var x = xt.ResolveX(item.X, inverted);
var y = xt.ResolveY(item.Y, inverted);
if (ui.Left > x && ui.Left - x < Square.Size - Square.Padding &&
ui.Top > y && ui.Top - y < Square.Size - Square.Padding)
{
if (null != Move)
{
Move(this, new PieceEventArgs(item));
}
found = true;
break;
}
}
if (!found)
{
Square = Square; //fall back
}
ev = null;
moving = false;
}