SetupController.java

package cpsc2150.extendedConnectX;

/**
 * This class is the controller for our setup screen. The processButtonClick method is called by
 * SetupView when someone clicks on the submit button. It is passed in the rows, cols, players and
 * the number to win by the view, but it still needs to validate that input. If there are any
 * errors it can use the displayError method in the SetupView class to inform the player of the
 * error, then wait for them to fix it and resubmit.
 * <p>
 * If there are no errors it will create a new IGameBoard object (the implementation will depend on
 * the size of the game board) to serve as the model, and the ConnectXController and ConnectXView.
 * Control is then passed over the the event dispatch thread that will wait for an event to occur
 */
public class SetupController {

    private SetupView view;
    private int max_size = 20;
    private int min_size = 3;
    private int min_to_win = 3;
    private final int BOARD_CUTOFF = 100;

    public SetupController(SetupView v) {
        view = v;
    }

    public void processButtonClick(int rows, int cols, int players, int numWin) {
        String errorMsg = "";
        if (rows < min_size || rows > max_size) {
            errorMsg += "Rows must be between " + min_size + " and " + max_size + ". ";
        }

        if (cols < min_size || cols > max_size) {
            errorMsg += "Columns must be between " + min_size + " and " + max_size + ". ";
        }

        if (numWin > rows) {
            errorMsg += "Can't have more to win than the number of rows. ";
        }
        if (numWin > cols) {
            errorMsg += "Can't have more to win than the number of Columns. ";
        }

        if (numWin < min_to_win) {
            errorMsg += "Number to win must be at least " + min_to_win + ". ";
        }

        if (!errorMsg.equals("")) {
            view.displayError(errorMsg);
        } else {
            view.closeScreen();
            IGameBoard model;
            //if the board is too big we'll want the memory efficient version
            if (rows * cols > BOARD_CUTOFF) {
                model = new GameBoardMem(rows, cols, numWin);
            } else {
                model = new GameBoard(rows, cols, numWin);
            }
            ConnectXView tview = new ConnectXView(rows, cols);
            ConnectXController tcontroller = new ConnectXController(model, tview, players);

            tview.registerObserver(tcontroller);
        }
    }
}