/*  Scrabble : An interactive scrabble playing software.
    Copyright (C) 1999 Amitabh Sinha
    
    All Trademarks and Copyrights pertaining to Scrabble, Java, Linux
    acknowledged.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Contact Amitabh at <amitabh@umich.edu>
*/

import java.io.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;

public class LetterBag {
    NewRandom nr;
    Vector letters;

    public LetterBag() {
	nr = new NewRandom();
	letters = new Vector();
	
	makeLetters('A', getPoints('A'), 9);
	makeLetters('B', getPoints('B'), 2);
	makeLetters('C', getPoints('C'), 2);
	makeLetters('D', getPoints('D'), 4);
	makeLetters('E', getPoints('E'), 12);
	makeLetters('F', getPoints('F'), 2);
	makeLetters('G', getPoints('G'), 3);
	makeLetters('H', getPoints('H'), 2);
	makeLetters('I', getPoints('I'), 9);
	makeLetters('J', getPoints('J'), 1);
	makeLetters('K', getPoints('K'), 1);
	makeLetters('L', getPoints('L'), 4);
	makeLetters('M', getPoints('M'), 2);
	makeLetters('N', getPoints('N'), 6);
	makeLetters('O', getPoints('O'), 8);
	makeLetters('P', getPoints('P'), 2);
	makeLetters('Q', getPoints('Q'), 1);
	makeLetters('R', getPoints('R'), 6);
	makeLetters('S', getPoints('S'), 4);
	makeLetters('T', getPoints('T'), 6);
	makeLetters('U', getPoints('U'), 4);
	makeLetters('V', getPoints('V'), 2);
	makeLetters('W', getPoints('W'), 2);
	makeLetters('X', getPoints('X'), 1);
	makeLetters('Y', getPoints('Y'), 2);
	makeLetters('Z', getPoints('Z'), 1);
	makeLetters(' ', getPoints(' '), 2);
    }

    public void makeLetters(char l, int p, int n) {
	for (int i=0; i<n; i++) {
	    Letter ll = new Letter(l, p);
	    letters.addElement(ll);
	}
    }
	    
    public Letter getLetter() {
	if (letters.size() == 0)
	    return null;

	nr.setLimit(letters.size());
	int r = nr.nextInt();
	Letter l = (Letter) letters.elementAt(r);
	letters.removeElement((Letter)letters.elementAt(r));
	return l;
    }

    public int getSize() {
	return letters.size();
    }

    public void returnLetter(Letter l) {
	letters.addElement(l);
    }

    public int getPoints (char c) {
	if (c==' ')
	    return 0;
	else if (c=='A' || c=='E' || c=='I' || c=='L' || c=='N' || c=='O' || c=='R' || c=='S' || c=='T' || c=='U')
	    return 1;
	else if (c=='D' || c=='G')
	    return 2;
	else if (c=='B' || c=='C' || c=='M' || c=='P')
	    return 3;
	else if (c=='F' || c=='H' || c=='V' || c=='W' || c=='Y')
	    return 4;
	else if (c=='K')
	    return 5;
	else if (c=='J' || c=='X')
	    return 8;
	else if (c=='Q' || c=='Z')
	    return 10;
	return 0;
    }
}