Play.java

import java.io.*;
import java.util.*;

class Play
{
    // if showCode is true then the secret code is revealed
    // before the game starts. This will be used by graders
    // of the program, to test the feedback of guesses.
    private boolean showCode;
    private DifficultyLevel diffLevel;
    private int numGuesses;
    private int numPositions;
    private int numColors;

    public Play(boolean sc, DifficultyLevel dl)
    {
        showCode = sc;
        diffLevel = dl;
    }

    public void printInstructions() throws Exception
    {
        String colors;
        
        switch (diffLevel.getLevel())
        {
            case 'R':
                numPositions = 4;
                numColors = 6;
                numGuesses = 12;
                colors = "Violet, Indigo, Blue, Green, Yellow and Orange";
                break;
            case 'P':
                numPositions = 4;
                numColors = 7;
                numGuesses = 10;
                colors = "Violet, Indigo, Blue, Green, Yellow, Orange and Red";
                break;
            case 'E':
                numPositions = 5;
                numColors = 9;
                numGuesses = 12;
                colors = "Violet, Indigo, Blue, Green, Yellow, Orange, Red, Pink and Cyan";
                break;
            case 'G':
                numPositions = 5;
                numColors = 10;
                numGuesses = 10;
                colors = "Violet, Indigo, Blue, Green, Yellow, Orange, Red, Pink, Cyan and Maroon";
                break;
            default:    // This should not happen. But if it happens, treat the unknown level as "Rookie" level.
                numPositions = 4;
                numColors = 6;
                numGuesses = 12;
                colors = "Violet, Blue, Green, Yellow, Orange and Red";
                break;
        }
        System.out.println("\t\t\tWelcome to BRAINZILIA!\n\n\n\tWhere the brain is truely mightier than the brawn!\n");
        System.out.println("This is a text version of the classic board game Mastermind.\n" +
        "The computer will think of a secret code.\n" +
        "Difficulty level is: " + diffLevel.getLevel() + "\n" +
        "The code consists of " + numPositions + " colored pegs.\n" +
        "The pegs may be one of " + numColors + " colors: " + colors + "\n" +
        "You try to guess what colored pegs are in the code and what order they are in.\n" +
        "After making a guess the feedback will be displayed.\n" +
        "A feedback consists of a black peg for each peg you have exactly correct (color and position) in your guess.\n" +
        "For each peg in the guess that is the correct color, but is out of position, you get a white peg.\n\n" +
        "Only the first letter of the color is displayed. B for Blue, R for Red, and so forth.\n" +
        "When entering guesses you only need to enter the first character of the color as a capital letter.\n"
        );
    }
    
    public void runGames() throws Exception
    {
        printInstructions(); //prints the instructions for the game

        System.out.println("You have " + numGuesses + " guesses to guess the correct answer.\n");
        
        boolean anotherGame = true; //checks if another game will be played
        
        while(anotherGame)
        {
            System.out.println("Generating secret code ....");
            
            GameBoard gameBoard = new GameBoard(numGuesses); //creates the gameBoard object for the game
            gameBoard.addPositions(); //adds the correct number of positions for the gameBoard object
            
            Feedback feedback = new Feedback(); //the feedback object that will generate the feedback
            
            Code compCode = new Code(numPositions, numColors); //the secret code to be used throughout the game
            BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
            
            boolean canContinue = true; //checks if the game can continue playing
            
            int n = gameBoard.getNumGuesses(); //resets the number of guesses back
            
            while(canContinue)
            {
                //shows the secret code if showCode is true
                if(showCode)
                {
                    System.out.println("The secret code is: " + compCode);
                }
            
                System.out.println("You have " + n + " guesses left.\n");
            
                boolean badCode = true; //checks if the user puts in a bad code
                Code userCode = new Code(numPositions, numColors); //creates temporary userCode object
            
                //runs while the user puts in a bad code
                while(badCode)
                {
                    badCode = false;
                    System.out.println("What is your next guess?");
                    System.out.println("Type in the characters for your guess and press enter.");
                    System.out.print("Enter guess: ");
                
                    String guess = br.readLine(); //gets the code from the user
                
                    try
                    {
                        userCode = new Code(numPositions, numColors, guess); //creates user code with correct input
                    }
                    catch(IllegalArgumentException e)
                    {
                        badCode = true; //sets badCode to true if the user's code was bad
                        System.out.println(e.getMessage());
                    }
                }
            
                boolean winner = feedback.getFeedback(compCode, userCode); 
                //boolean that stores if the user won; also gets the results for the round
            
                //shows secret code is showCode is true
                if(showCode)
                {
                    System.out.println("The secret code is: " + compCode + "\n");
                }
            
                gameBoard.changeRow(userCode, feedback); //changes the row of the gameBoard
            
                //if boolean winner is false, this will print out the gameBoard that winners see
                //else it will print out the default gameBoard
                if(winner)
                {
                    System.out.println(gameBoard.winnerToString());
                }
                else
                {
                    System.out.println(gameBoard);
                }
            
                n--; 
            
                if(n == 0 || winner)
                {
                    canContinue = false;
                    if(winner)
                    {
                        System.out.println("You solved the puzzle! Good job.");
                    }
                    else //it has to be (n == 0)
                    {
                        System.out.println("You did not solve the puzzle. Too bad.");
                    }
                    System.out.print("Enter Y for another game or anything else to quit: ");
                    String input = br.readLine();
                    if(!input.equals("Y"))
                    {
                        anotherGame = false;
                    }
                }
            }
        }
    }
}