public void OnSquareClicked(int row, int column)
{
int square = SquareHelper.MakeSquare(row, column);
List <ushort> validMoves = this.position.GenerateValidMoves();
if (validMoves.Count == 0)
{
return;
}
if (this.previousSquareSelected == -1)
{
// Select a square
if (this.position.Board[square] != Pieces.Empty)
{
if ((this.position.Board[square] & 0x8) == position.ToMove)
{
this.squares[row][column].Highlight = true;
this.previousSquareSelected = square;
// this.StatusText = "Select square to move to";
}
else
{
// this.StatusText = String.Format("You must select a {0} piece", position.ToMove == Pieces.White ? "White" : "Red");
}
}
}
else if (this.previousSquareSelected == square)
{
// Deselect the square
this.squares[row][column].Highlight = false;
this.previousSquareSelected = -1;
// this.StatusText = "Select piece to move";
}
else
{
// Find a move
int from = this.previousSquareSelected;
int to = square;
ushort validMove = 0;
foreach (ushort move in validMoves)
{
if (MoveHelper.From(move) == from &&
MoveHelper.To(move) == to)
{
validMove = move;
}
}
if (validMove == 0)
{
// this.StatusText = "Invalid move!";
return;
}
this.squares[SquareHelper.GetRow(from)][SquareHelper.GetColumn(from)].Highlight = false;
this.previousSquareSelected = -1;
if (this.UserMove != null)
{
this.UserMove(validMove);
}
}
}
