// The "GroupAConnectFour" class.
import java.awt.*;
import hsa.Console;

public class GroupAConnectFour
{
    static Console c;           // The output console

    public static void main (String[] args)
    {
        c = new Console (10, 25);

        int[] [] board = new int [6] [7];
        int lRow = 0;
        int lColumn = 0;
        int win = 0;
        char nex = 'q';
        int curPos = 0;
        byte red = 1;


        c.println("Group A's: Connect Four");
        c.println("A moves selector left, \n\tD right, \n\tand S drops.");
        c.println("Press any key to continue");

         c.getChar();

        clearBoard (board);
        c.setTextColor(Color.BLUE);

        while (win == 0)
        {

            refresh(c,board, curPos);
            nex = c.getChar ();
            if (nex == 'a')
            {
                curPos--;
                if (curPos < 0)
                {
                    curPos = board.length;
                }
            }
            else if (nex == 'd')
            {
                curPos++;
                if (curPos >= board[0].length)
                {
                    curPos = 0;
                }
            }
            else if (nex == 's')
            {
                if (findRow (board, curPos) != -1)
                {
                    lColumn = curPos;
                    lRow = findRow (board, curPos);
                    board [lRow] [lColumn] = (int) red;
                    red = (byte) (-(red));
                }
            }
            win = checkForWinner (board, lRow, lColumn);
            //c.println(win);
        }
        refresh(c,board, curPos);
        if (win == 1)
        {
            c.setTextColor(Color.RED);
            c.println("Red Win!");
        } else
        {
            c.setTextColor(Color.BLACK);
            c.println("Black Win!");
        }
    } // main method


    public static int checkForWinner (int[] [] board, int lastRow, int lastColumn)
    {
        int totalInColumn = 0;
        int totalInRow = 0;
        int winCheck = 0;
        //Check for columns
        for (int i = 0 ; i < 3 ; i++)
        {
            int columnCheck = board [i] [lastColumn];
            for (int p = 1 ; p < 4 ; p++)
                columnCheck = columnCheck + board [i + p] [lastColumn];
            if (Math.abs (columnCheck) == 4)
            {
                winCheck = (board [lastRow] [lastColumn]);
                return winCheck;
            }
        }

        //Check for rows
        for (int i = 0 ; i < 3 ; i++)
        {
            int rowCheck = board [lastRow] [i];
            for (int p = 1 ; p < 4 ; p++)
                rowCheck = rowCheck + board [lastRow] [i + p];
            if (Math.abs (rowCheck) == 4)
            {
                winCheck = (board [lastRow] [lastColumn]);
                return winCheck;
            }
        }

        return 0;
    }


    private static int findRow (int[][] board, int col)
    {
        int row = 0;
        for (int i = 0 ; i < board.length ; i++)
        {
            if (board [i] [col] == 0)
            {
                row = i;
                return row;
            }
            else
            {
                row = -1;
            }
        }
        return row;
    }

    public static void clearBoard(int[][]board)
    {
        for (int xx = 0; xx < board.length; xx++)
        {
            for (int yy = 0; yy < board[0].length; yy++)
            {
                board[xx][yy] = 0;
            }
        }

    }

    public static void refresh(Console c, int[][] board, int curPos)
    {
    c.clear ();
            for (int xx = 0 ; xx < board[0].length ; xx++)
            {
                if (xx == curPos)
                {
                    c.setTextColor(Color.MAGENTA);
                    c.print ("V");
                    c.setTextColor(Color.BLUE);
                }
                else
                {
                    c.print ("~");
                }
                c.print (" ");
            }
            c.println ();
            for (int xx = board.length - 1 ; xx >= 0 ; xx--)
            {
                for (int yy = 0 ; yy < board [0].length ; yy++)
                {
                    if (board [xx] [yy] == 1)
                    {
                        c.setTextColor(Color.RED);
                        c.print("O"+ " ");
                    } else if (board [xx] [yy] == -1)
                    {
                        c.setTextColor(Color.BLACK);
                        c.print("X"+ " ");
                    } else
                    {
                        c.setTextColor(Color.BLUE);
                        c.print("."+ " ");
                    }
                }
                c.println ();
            }
            c.setTextColor(Color.BLUE);
            }
} // GroupAConnectFour class