// Chips.java
// Sample solution to Lab #1. Written by THC.
// Plays the game of chips. Originally there are 99 chips in a pile, but
// in fact we allow the players to enter the number. The first player removes
// any number of chips from the pile, leaving at least half of them. From then
// on, the players alternate removing chips from the pile until it is empty.
// The number of chips removed in each turn must be at least 1 and at most
// twice the number removed by the other player in the previous turn.
// At the end of the game, the player with an even number of chips is the
// winner.

import java.util.Scanner;

public class Chips {
  public static void main(String[] args) {
    String response;
    Scanner input = new Scanner(System.in);

    do {
      playAGame();

      System.out.print("\n\nPlay another game? (y/n) ");
      response = input.next();
    }
    while ((response.toLowerCase()).charAt(0) == 'y');
  }

  private static void playAGame() {
    Referee official = new Referee(); // Make a new game and initialize it.
    int move; // Number of chips removed in a turn

    // The main loop makes moves until the game is over.
    while (!official.saysGameIsOver()) {
      official.describeState();
      move = official.getLegalMove();
      official.updateState(move);
    }

    // All done, so announce the winner.
    official.announceWinner();
  }
}