void HandleClick(object sender, EventArgs e, ChessPanel panel)
{
int row = panel.row;
int column = panel.column;
int[,] boardState = board.ShowBoardState();
// White Turn
if (turn % 2 == 0)
{
if (boardState[row, column] > 0 && boardState[row, column] < 7)
{
SelectPiece(panel);
}
else if (validMoves != null && validMoves[row, column] < 0 && selectedPanel != null)
{
board.movePiece(selectedPanel.row, selectedPanel.column, panel);
turn++;
UpdateUI();
}
}
// Black Turn
else
{
if (boardState[row, column] > 6)
{
SelectPiece(panel);
}
else if (validMoves != null && validMoves[row, column] < 0 && selectedPanel != null)
{
board.movePiece(selectedPanel.row, selectedPanel.column, panel);
turn++;
UpdateUI();
}
}
}
void HighlightValidMoves(int panelRow, int panelColumn)
{
validMoves = board.GetPieceMoves(panelRow, panelColumn);
// TODO: Stop pieces from being able to jump (except knight)
// Disable highlighting until this is fixed.
for (int column = 0; column < gridSize; column++)
{
for (int row = 0; row < gridSize; row++)
{
ChessPanel panel = chessBoardPanels[row, column];
if (validMoves[row, column] == -1)
{
panel.BackColor = Color.Blue;
}
else if (validMoves[row, column] == -2)
{
panel.BackColor = Color.Red;
}
else
{
panel.BackColor = panel.baseColor;
}
}
}
}
private void InsertGamePiece(ChessPanel panel, string gamePiece)
{
// Ensure that the directory matches on your local computer
string imageFileDirectory = $@"{Directory.GetCurrentDirectory()}\Images\{gamePiece}";
panel.BackgroundImage = Image.FromFile(imageFileDirectory);
panel.BackgroundImageLayout = ImageLayout.Stretch;
}
private void SelectPiece(ChessPanel panel)
{
// int pieceNumber = board.ShowBoardState()[panel.row, panel.column];
if (selectedPanel != null && selectedPanel.baseColor != null)
{
selectedPanel.BackColor = selectedPanel.baseColor;
}
selectedPanel = panel;
selectedPanel.BackColor = Color.Green;
HighlightValidMoves(panel.row, panel.column);
}
private void StartGame()
{
// double for loop to handle all rows and columns
for (int column = 0; column < gridSize; column++)
{
for (int row = 0; row < gridSize; row++)
{
// create new Panel control which will be one chess board tile
var newPanel = new ChessPanel
{
Size = new Size(tileSize, tileSize),
Location = new Point(tileSize * column, tileSize * row),
};
// add to Form's Controls so that they show up
Controls.Add(newPanel);
// add to our 2d array of panels for future use
chessBoardPanels[row, column] = newPanel;
// create the positional grid labels
if (column == 0 && row == 8)
{
continue;
}
// label the row and column of the panel for reference purposes
newPanel.row = row;
newPanel.column = column;
if (column > 0 && row == 8)
{
// A => H Grid
Label label = CreateLabel(((char)(column + 64)).ToString());
newPanel.Controls.Add(label);
}
else if (column == 0 && row < 8)
{
// 1 => 8 Grid
Label label = CreateLabel(((row - 8) * -1).ToString());
newPanel.Controls.Add(label);
}
// color the backgrounds && add fillers (chess pieces to be displayed)
else if (column % 2 == 0)
{
// TODO: Any chess pieces in this tile? add it.
CreatePanel(newPanel, row, column);
}
else
{
CreatePanel(newPanel, row, column);
}
}
}
}
private void UpdateUI()
{
for (int column = 0; column < gridSize; column++)
{
for (int row = 0; row < gridSize; row++)
{
ChessPanel panel = chessBoardPanels[row, column];
panel.BackColor = panel.baseColor;
CheckTileForPiece(row, column, panel);
}
}
selectedPanel = null;
}
private void CreatePanel(ChessPanel panel, int row, int column)
{
if (column % 2 == 0)
{
panel.baseColor = row % 2 != 0 ? Color.DarkGray : Color.White;
}
else
{
panel.baseColor = row % 2 == 0 ? Color.DarkGray : Color.White;
}
panel.BackColor = panel.baseColor;
panel.MouseClick += ((o, a) => HandleClick(o, a, panel));
CheckTileForPiece(row, column, panel);
}
private bool CheckTileForPiece(int row, int column, ChessPanel panel)
{
// TODO Implement code to check the 2D array to see if a piece exists, then insert the piece.
int pieceNumber = board.ShowBoardState()[row, column];
string gamePiece = GetGamePieceByNumber(pieceNumber);
if (gamePiece != "None")
{
InsertGamePiece(panel, gamePiece);
return(true);
}
RemoveGamePiece(panel);
return(false);
}
///<summary>
/// row = Origin Panel row, column = Origin Panel column, destination = Target Panel to move to
///</summary>
public void movePiece(int row, int column, ChessPanel destination)
{
boardState[destination.row, destination.column] = boardState[row, column];
boardState[row, column] = 0;
}
private void RemoveGamePiece(ChessPanel panel)
{
panel.BackgroundImage = null;
}