/* Jonathan Strickland
 * Advanced Programming */

import java.util.Random;
import java.util.Scanner;

public class PigGame
{
    static Random die = new Random();
    static Scanner in = new Scanner(System.in);

    static final int POINTS_TO_WIN = 100;
    static final int DIE_SIDES = 6;

    public static void main(String[] args)
    {
        // set both scores to 0
        int playerOneScore = 0;
        int playerTwoScore = 0;

        // title
        System.out.println("Pig Game");
        System.out.println("=======");

        // main loop
        while ((playerOneScore < POINTS_TO_WIN) && (playerTwoScore < POINTS_TO_WIN))
        {
            System.out.println("\nPlayer 1's turn. You've got " + playerOneScore + " points.");
            playerOneScore += playerTurn();
            System.out.println("Player 1's score is now " + playerOneScore);

            if (playerOneScore < POINTS_TO_WIN)
            {
                System.out.println("\nPlayer 2's turn. You've got " + playerTwoScore + " points.");
                playerTwoScore += playerTurn();
                System.out.println("Player 2's score is now " + playerTwoScore);
            }
        }

        // print the winner
        if (playerOneScore >= POINTS_TO_WIN) System.out.println("Player 1 wins!");
        else System.out.println("Player 2 wins!");
    }

    public static int roll()
    {
        return die.nextInt(DIE_SIDES) + 1;
    }

    public static int playerTurn()
    {
        // start off with no points queued
        int score = 0;
        // roll the first time
        int roll = roll();

        while (roll != 1)
        {
            // announce roll
            System.out.println("You rolled a " + roll);

            score += roll;

            System.out.println("Your roll so far is " + score);

            System.out.println("Hold? (y/n)");

            String input = yesOrNoPrompt();

            if (input.equals("y"))
            {
                System.out.println("Okay. You got " + score + " points.");
                return score;
            } else if (input.equals("n")) {
                System.out.println("Okay. Let's roll.");
                roll = roll();
            }
        }

        System.out.println("You rolled a 1.");
        System.out.println("Bust! No points.");
        return 0;
    }

    public static String yesOrNoPrompt()
    {
        System.out.print("> ");
        String input = in.nextLine();
        System.out.println("");

        while (!(input.equals("y") || input.equals("n")))
        {
            System.out.println("Enter y or n, please.");

            System.out.print("> ");
            input = in.nextLine();
            System.out.println("");
        }

        return input;
    }
}