private async void Border_MouseUp(object sender, MouseButtonEventArgs e)
{
if (!IsEnabled)
{
return;
}
Border b = sender as Border;
var square = b.DataContext as ChessSquare;
var vm = FindResource("vm") as ChessViewModel;
IEnumerable <ChessSquare> playerSquares = vm.Squares.Where(s => s.Player == vm.CurrentPlayer);
IEnumerable <ChessSquare> selectedSquares = vm.Squares.Where(s => s.IsSelected == true);
//first click, select piece to be moved
if (selectedSquares.Count() == 0)
{
if (playerSquares.Contains(square))
{
square.IsSelected = true;
square.IsHighlighted = false;
}
}
//second click
else if (selectedSquares.Count() == 1)
{
//click on possible move, move is applied
if (vm.PossibleEndMoves.Contains(square.Position))
{
if (selectedSquares.FirstOrDefault().Piece.PieceType == ChessPieceType.Pawn)
{
if (selectedSquares.FirstOrDefault().Player == 1 && square.Position.Row == 0)
{
var p = new PawnPromotion(vm, selectedSquares.FirstOrDefault().Position, square.Position);
p.ShowDialog();
}
else if (selectedSquares.FirstOrDefault().Player == 2 && square.Position.Row == 7)
{
var p = new PawnPromotion(vm, selectedSquares.FirstOrDefault().Position, square.Position);
p.ShowDialog();
}
else
{
IsEnabled = false;
await vm.ApplyMove(selectedSquares.FirstOrDefault().Position, square.Position, selectedSquares.FirstOrDefault().Piece.PieceType);
IsEnabled = true;
}
}
else
{
IsEnabled = false;
await vm.ApplyMove(selectedSquares.FirstOrDefault().Position, square.Position, selectedSquares.FirstOrDefault().Piece.PieceType);
IsEnabled = true;
}
square.IsHighlighted = false;
selectedSquares.FirstOrDefault().IsSelected = false;
}
//click on not possible move, move is cancelled and is no longer selected
else
{
selectedSquares.FirstOrDefault().IsSelected = false;
}
}
}
private async void Border_MouseUpAsync(object sender, MouseButtonEventArgs e)
{
Border b = sender as Border;
var square = b.DataContext as ChessSquare;
var currentlySelected = ChessViewModel.CurrentlySelected;
if (currentlySelected != null)
{
if (currentlySelected.Position.Equals(square.Position))
{
square.IsSelected = false;
square.IsHighlighted = true;
ChessViewModel.CurrentlySelected = null;
}
else
{
var possibleMoves = from ChessMove m in GetPossibleMovesByStartPosition(currentlySelected)
where m.EndPosition.Equals(square.Position)
select m;
if (possibleMoves.Any())
{
ChessMove move = possibleMoves.First();
if (move.MoveType == ChessMoveType.PawnPromote)
{
PawnPromotion window = new PawnPromotion(ChessViewModel, currentlySelected.Position, square.Position)
{
ResizeMode = ResizeMode.NoResize,
WindowStyle = WindowStyle.None
};
window.ShowDialog();
}
else
{
if (ChessViewModel.IsCheck)
{
ChessViewModel.FindKingSquareInCheck().IsInCheck = false;
}
var window = Window.GetWindow(this);
window.IsEnabled = false;
await ChessViewModel.ApplyMove(move);
window.IsEnabled = true;
}
square.IsHighlighted = false;
}
else
{
ChessViewModel.CurrentlySelected.IsSelected = false;
if (IncomingSelectionIsValidChessPiece(square))
{
square.IsSelected = true;
ChessViewModel.CurrentlySelected = square;
}
else
{
ChessViewModel.CurrentlySelected = null;
}
}
}
}
else
{
if (IncomingSelectionIsValidChessPiece(square))
{
square.IsHighlighted = false;
square.IsSelected = true;
ChessViewModel.CurrentlySelected = square;
}
}
}