PlayManager.java

/**
 * This file is provided for you to test out your GameState program
 * while you work on PA 4. It is not required for submission.
 * 
 * @author Charles Yu, Yingxi Lin
 * 
 * DO NOT MODIFY THIS FILE
 */

/**
 * A manager class that runs the 2048 game. It parses command line
 * arguments, initializes the game accordingly. 
 */
public class PlayManager
{
    private static final String USAGE = "`java PlayManager [SAVEFILE]` " + 
        "to start a game from SAVEFILE, omit for a default game"; 
    private static final String START_MSG = 
        "Starting a default-sized random game...";
    private static final String LOAD_MSG_FMT = 
        "Attempting to load game from %s.."; 
    
    /**
     * Main method. Parses command line arg, load games, run games.
     * @param args an array of command line args in Strings
     */
    public static void main (String[] args) {
        if (args.length != 0 && args.length != 1) {
            System.out.print(USAGE);
            return;
        }

        Game2048 game = null; 

        if (args.length == 0) {
            System.out.println(START_MSG);
            game = new Game2048();
        } else {
            System.out.println(String.format(LOAD_MSG_FMT, args[0]));
            game = new Game2048(args[0]); 
        }
        game.play();
    }
}