private PieceClass movePiece(Element ele, PieceClass pieceToRemove)
{
foreach (TileClass tile in HighlightedTiles)
{
if (tile.element.Id == ele.Id)
{
LocationPoint tileLoaction = tile.element.Location as LocationPoint;
LocationPoint parentLoaction = tile.parentElement.Location as LocationPoint;
parentLoaction.Point = tileLoaction.Point;
PieceClass pawn = null;
foreach (PieceClass piece in PieceList)
{
if (piece.Col == tile.column && piece.Row == tile.row)
{
doc.Delete(piece.element.Id);
pieceToRemove = piece;
}
else if (piece.element.Id == tile.parentElement.Id)
{
if (turn == "White" && playVsCPU)
{
WhiteMoveForEngine = ChessEngine.generateMoveString(piece.Col, tile.column, piece.Row, tile.row);
}
piece.Col = tile.column;
piece.Row = tile.row;
if (checkPawnBecomesQueen(piece))
{
pawn = piece;
}
}
}
//Change turn
if (turn == "White")
{
turn = "Black";
}
else
{
turn = "White";
}
modelText.Text = turn + " To Move";
if (pawn != null)
{
doc.Delete(pawn.element.Id);
PieceList.Remove(pawn);
PieceList.Add(new Queen(pawn.Color, pawn.Row, pawn.Col, this));
}
}
}
return(pieceToRemove);
}
bool checkPawnBecomesQueen(PieceClass piece)
{
if (piece is Pawn)
{
if (piece.Color == "White" && piece.Row == 1)
{
return(true);
}
else if (piece.Color == "Black" && piece.Row == 8)
{
return(true);
}
}
return(false);
}
private PieceClass moveCPUPiece(PieceClass piece, PieceClass pieceToRemove)
{
LocationPoint pieceOriginalLocation = piece.element.Location as LocationPoint;
var updatedPoint = new XYZ(piece.Col, piece.Row, 0);
pieceOriginalLocation.Point = updatedPoint;
PieceClass pawn = null;
foreach (PieceClass p in PieceList)
{
if (p.Col == piece.Col && p.Row == piece.Col)
{
doc.Delete(p.element.Id);
pieceToRemove = p;
}
}
if (checkPawnBecomesQueen(piece))
{
pawn = piece;
}
//Change turn
if (turn == "White")
{
turn = "Black";
}
else
{
turn = "White";
}
modelText.Text = turn + " To Move";
if (pawn != null)
{
doc.Delete(pawn.element.Id);
PieceList.Remove(pawn);
PieceList.Add(new Queen(pawn.Color, pawn.Row, pawn.Col, this));
}
return(pieceToRemove);
}
public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
WelcomeForm welcomeForm = new WelcomeForm();
welcomeForm.ShowDialog();
playVsCPU = welcomeForm.vsCPU;
UIApplication uiapp = commandData.Application;
UIDocument uidoc = uiapp.ActiveUIDocument;
PieceClass pieceToRemove = null;
doc = uidoc.Document;
findExistingPieces();
clearBoard(allFamilies);
if (playVsCPU)
{
chessEngineProcess = ChessEngine.Start();
}
using (Transaction t = new Transaction(doc, "Set Board"))
{
t.Start();
InitPieces();
InitBoard();
t.Commit();
}
while (true)
{
pieceToRemove = null;
//isKingInCheck();
using (Transaction t = new Transaction(doc, "Test"))
{
t.Start();
Reference eleid = null;
Element ele = null;
//CPU Turn
if (playVsCPU && turn == "Black")
{
PieceClass piece = ChessEngine.CPUMove(WhiteMoveForEngine, chessEngineProcess, PieceList);
pieceToRemove = moveCPUPiece(piece, pieceToRemove);
}
else
{
//Get player to select an element
bool selectionFailed = selectPiece(uidoc, ref eleid, ref ele);
if (selectionFailed)
{
break;
}
//If chosen element is a chess piece then highlight its available moves
if ((ele as FamilyInstance).Symbol.Family.Name != "ChessTile")
{
deleteHighlightedTiles();
GetPieceClass(ele).HighlightMoveOptions();
}
//Otherwise element is a tile - therfore move chess piece to the location of the tile
else
{
pieceToRemove = movePiece(ele, pieceToRemove);
deleteHighlightedTiles();
}
}
t.Commit();
if (pieceToRemove != null)
{
PieceList.Remove(pieceToRemove);
}
}
}
return(Result.Succeeded);
}
private void isKingInCheck()
{
using (Transaction t = new Transaction(doc, "CheckCheck"))
{
t.Start();
List <PieceClass> allEnemyPieces = null;
if (turn != "White")
{
allEnemyPieces = PieceList.FindAll(x => x.Color == "White");
foreach (PieceClass piece in allEnemyPieces)
{
piece.HighlightMoveOptions();
}
}
else
{
allEnemyPieces = PieceList.FindAll(x => x.Color == "Black");
foreach (PieceClass piece in allEnemyPieces)
{
piece.HighlightMoveOptions();
}
}
PieceClass king = null;
foreach (PieceClass _king in PieceList)
{
if (_king.Color == turn)
{
king = _king;
}
}
foreach (TileClass tile in HighlightedTiles)
{
if (tile.column == king.Col && tile.row == king.Row)
{
TaskDialog.Show("Check", turn + " King is in check.");
}
}
List <TileClass> tilesToRemove = new List <TileClass>();
foreach (TileClass tile in HighlightedTiles)
{
string color = GetPieceClass(tile.parentElement).Color;
if (color != turn)
{
doc.Delete(tile.element.Id);
tilesToRemove.Add(tile);
}
}
foreach (TileClass tile in tilesToRemove)
{
HighlightedTiles.Remove(tile);
}
t.Commit();
}
}