//When a user has selected a square this event is called to update the other player on network
protected virtual void OnSelectionMadeEvent(selectionMadeArgs e)
{
EventHandler <selectionMadeArgs> handler = selectionMadeEvent;
if (handler != null)
{
handler(this, e);
}
}
//Event driven logic - user clicking on a chess piece drives the whole program
private void dgv_chessBoard_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
//We can only move a piece if we've selected one to move
if (selectionMade)
{
ChessPiece selectedPiece = chessBoard[selectedX, selectedY];
chessColour selectedColour = chessBoard[selectedX, selectedY].Colour;
// check that the move is legal for the piece selected,
// and that the piece is the correct colour to move,
if (currentGame.Turn == selectedColour &&
selectedPiece.isValidMove(e.ColumnIndex, e.RowIndex, chessBoard))
{
//If we're playing single player with no networking we can move black or white pieces
if (!isNetworked)
{
movePiece(selectedX, selectedY, e.ColumnIndex, e.RowIndex);
}
else if (thisPlayerColour == currentGame.Turn) //If we're playing a networked game, we can only move our own pieces
{
movePiece(selectedX, selectedY, e.ColumnIndex, e.RowIndex);
// Use an event to call the networkingWindow to record and send the move to other player
if (isNetworked)
{
//"MOVE|oldCol,oldRow|newCol,newRow\n"
chessMoveArgs args = new chessMoveArgs();
args.oldX = selectedX;
args.oldY = selectedY;
args.newX = e.ColumnIndex;
args.newY = e.RowIndex;
OnChessMoveEvent(args);
}
}
}
//if the move wasn't valid, clear selection for next use
selectionMade = false;
//report selection to other player
if (isNetworked)
{
selectionMadeArgs args = new selectionMadeArgs();
args.selection = selectionMade;
args.intX = selectedX;
args.intY = selectedY;
OnSelectionMadeEvent(args);
}
}
else
{
selectionMade = true; //saves the selection
selectedX = e.ColumnIndex;
selectedY = e.RowIndex;
//report selection to other player
if (isNetworked)
{
selectionMadeArgs args = new selectionMadeArgs();
args.selection = selectionMade;
args.intX = selectedX;
args.intY = selectedY;
OnSelectionMadeEvent(args);
}
}
updateSelectionSquare(); //updates the gameboard if a square has been selected/released
}
