import java.util.Scanner;


public class DriverChess
{
    public static void main (String [] args)
    {
        boolean moveValid = false;
        int sourceRow = -1; //Current location of chess piece
        int sourceColumn = -1;
        int destinationRow = -1;  //Possible location to move the chess piece to
        int destinationColumn = -1;
        String typeOfChessPiece = null; 
        Scanner in = new Scanner(System.in);
        ChessBoard aBoard = new ChessBoard();

        while (true)
        {
            System.out.print("Current row: ");
            sourceRow = in.nextInt();
            System.out.print("Current column: ");
            sourceColumn = in.nextInt(); 
            System.out.print("Destination row: ");
            destinationRow = in.nextInt();
            System.out.print("Destination column: ");
            destinationColumn = in.nextInt(); 
            in.nextLine();  //Remove the EOL from the input stream before getting a String input
            //Only check if move is valid if the source and destination location are inside the board.
            if (aBoard.outOfBounds(sourceRow,sourceColumn,destinationRow,destinationColumn) == false)
            {
                System.out.print("Type of piece to move e.g. king,queen,knight,rock,black pawn,white pawn etc.: " );
                typeOfChessPiece = in.nextLine();
                moveValid = aBoard.isMoveValid(sourceRow,sourceColumn,destinationRow,destinationColumn,typeOfChessPiece); 
                System.out.print("Moving a " + typeOfChessPiece + " from location(row/column)=(" + sourceRow + "/" + 
                  sourceColumn + ") to location(row/column)=(" + 
                  destinationRow + "/" + destinationColumn + ") ");
                if (moveValid == true)
                    System.out.println("is a valid move.");
                else
                    System.out.println("is not a valid move.");
            }
            else
            {
                System.out.println("Out of bounds");
            } 
            System.out.println("Hit enter to continue: ");
            in.nextLine();
        }        
    }
}