ConcentrationRunner.java

/** 
 * Play the game of Concnetration
 * 
 * The runner creates a game board and shows the board. It gets a 2-tile selection from the user,
 * checks if the cards at the 2 tile locations match, and then re-displays the board.
 */
import java.util.Scanner;

public class ConcentrationRunner
{
    // create the game 
    private static Concentration game = new Concentration();

    public static void main(String[] args)
    {
        // input object for the BlueJ console
        Scanner in = new Scanner(System.in);

        // instructions
        System.out.println("Welcome to the game of Concentration.");

        System.out.println("Select the tile locations you want to see,");
        System.out.println("or enter any non-integer character to quit.");
        System.out.println("(You will need to know 2-dim arrays to play!)");
        System.out.println("\nPress Enter to continue...");
        in.nextLine();
        System.out.print('\u000C');
        // play until all tiles are matched
        while(!game.allTilesMatch()) {
            
            displayBoard();

            // player selects first tile, if not an integer, quit game
            int i1 = -1;
            int j1 = -1;
            
            System.out.print("First choice (i j): ");
            if (in.hasNextInt()) 
            {
                i1 = in.nextInt(); 
            }
            else 
            {
                //quitGame();
            }
            if (in.hasNextInt()) 
            {
                j1 = in.nextInt();
            }
            else {
                //quitGame();
            }

            in.reset();
            // ignore any extra input
            //System.out.print('\u000C');
            displayBoard();
            // display board with first tile face up
            game.showFaceUp(i1, j1);

            displayBoard();

            // player selects second tile, if not an integer, quit game
            int i2 = -1;
            int j2 = -1;
            System.out.print("Second choice (i j): ");
            if (in.hasNextInt())
            {
                i2 = in.nextInt();
            }
            else 
            {
                quitGame();
            }
            if (in.hasNextInt()) 
            {
                j2 = in.nextInt();
            }
            else 
            {
                quitGame();
            }
            in.reset(); // ignore any extra input

            // display board with additional second tile face up
            game.showFaceUp(i2, j2);
            //System.out.print('\u000C');
            displayBoard(); 

            // determine if a match was found
            String matched = game.checkForMatch(i1, j1, i2, j2);
            System.out.println(matched);
            //displayBoard();

        }
        displayBoard();
        System.out.println("You Win!");
        System.out.println("Game Over!");

    }

    /**
     * Clear the console and show the game board
     * Tiles can either indicate the card is  face up or face down
     */
    public static void displayBoard() {

         
        System.out.println(game);
          //System.out.println("█▀▀▀▀▀█▀▀▀▀▀█▀▀▀▀▀█");
        System.out.println("█ 0 0 █ 0 1 █ 0 2 █");
       // System.out.println("█▀▀▀▀▀█▀▀▀▀▀█▀▀▀▀▀█");
        System.out.println("█ 1 0 █ 1 1 █ 1 2 █");
        //System.out.println("█▄▄▄▄▄█▄▄▄▄▄█▄▄▄▄▄█");
        System.out.println("█ 2 0 █ 2 1 █ 2 2 █\n");
        
      
        
        
    }

    /**
     * Wait n second before clearing the console
     */
    private static void wait(int n) {
        try  {
            Thread.sleep(n * 1000);
        }
        catch (InterruptedException e) {
            System.out.println(e);
        }
    }

    /** 
     * User quits game
     */
    private static void quitGame() {
        System.out.println("Quit game!");
        System.exit(0);
    }

}