guessboard.java

proxy server for caching and packet filtering final project

/**
 * Records all the guesses and their results of a player
 */
public class GuessBoard{                       
  /**
   * An array holding all locations guessed so far
   */
  private Location guess[];            //all prior guesses
  /**
   * Results of all guesses so far. result[i] is true if the guess at location guess[i] hit a ship.
   */
  private boolean result[];
  /**
   * Number of guesses so far
   */
  private int numGuess;
  /**
   * Initializes the arrays to the maximum size (100)
   */
  GuessBoard(){                          
    numGuess=0;
    guess=new Location[100];
    result=new boolean[100];
  }
  /**
   * @param l Location to be checked
   * @return True if location l has already been guessed.
   */
  public boolean isNew(Location l){       
    boolean old=false;
    for(int i=0;i<numGuess;i++)
      old=(old||l.equal(guess[i]));
    return (!old);
  }
  /**
   * Marks the result of a guess
   * @param l Location corresponding to the guess
   * @param res Result of the guess at location l (true=hit, false=miss)
   */
  public void markGuess(Location l,boolean res){  
    if(isNew(l)){
      guess[numGuess]=l;
      result[numGuess]=res;  
      numGuess++;
    }    
  }
 /**
  * Tests whether a location was guessed and hit
  * @param l Location to test
  * @return True if location l was guessed earlier and was a hit
  */
  public boolean wasHit(Location l){          
    for(int i=0;i<numGuess;i++)               //location guessed before
      if(l.equal(guess[i])) return result[i];
    return false;                             //not guessed so far
  }
  /**
   * @return The number of guesses so far
   */
  public int numGuesses(){
     return numGuess;
  }
};