WordSearch.java

import java.util.*;
import java.io.*;

public class WordSearch {
    private char[][] board;
    private Random rand;
    private ArrayList<String> wordList;
    private ArrayList<String> words = new ArrayList<String>();

    private void loadWords(String filename) {
        wordList = new ArrayList<String>();

        try {
            Scanner sc = new Scanner(new File(filename));
            while (sc.hasNext()) {
                String s = sc.next();
                wordList.add(s);
            }
        } catch (FileNotFoundException e) {
            System.out.println("Can't open wordlist - exiting");
            System.exit(0);
        }
    }

    public WordSearch(int rows, int cols) {
        rand = new Random();
        loadWords("wordlist.txt");
        System.out.println(wordList);
        board = new char[rows][cols];
        rand = new Random();
        for (int i=0;i<rows;i++) {
            for (int j=0;j<cols;j++) {
                board[i][j]='-';
            }
        }
    }
    
    public WordSearch() {
        this(20,20);
    }

    public boolean addWord(int row, int col, int deltaR, int deltaC, String word) {
        int r,c;
        
        if (deltaR<-1||deltaR>1||deltaC<-1||deltaC>1||
            (deltaR==0&&deltaC==0))
            return false;

        r = row;
        c=col;
        for (int i=0;i<word.length();i++) {
            try {
                if (board[r][c]!='-' && board[r][c]!=word.charAt(i))
                    return false;

            } catch (ArrayIndexOutOfBoundsException e) {
                System.out.println("Got ArrayIndex thing: "+e);
                return false;
            }
            r = r + deltaR;
            c = c + deltaC;
        }

        r=row;
        c=col;
        for (int i=0;i<word.length();i++) {
            board[r][c]=word.charAt(i);
            r = r + deltaR;
            c = c + deltaC;
        }

        return true;
    }


    public boolean addWordV(int row, int col, String word) {
        return addWord(row,col,1,0,word);
    }
    public boolean addWordH(int row, int col, String word) {
        return addWord(row,col,0,1,word);
    }
    
    public boolean addWordRand(String w) {
        int r = rand.nextInt(board.length);
        int c = rand.nextInt(board[0].length);
        int deltaR = rand.nextInt(3)-1;
        int deltaC = rand.nextInt(3)-1;
        System.out.println(r+" "+c+" "+deltaR+" "+deltaC);
        return addWord(r,c,deltaR,deltaC,w);
    }


    public void fillSpaces() {
        for (int r=0;r<board.length;r++) {
            for (int c=0;c<board[0].length;c++) {
                if (board[r][c]=='-') {
                    board[r][c]=(char)('A'+rand.nextInt('Z'-'A'+1));
                }
            }
        }
    }

    public void putInWords(){
	int x;
	int y = 0;
	while(y<10){
	    if (wordList.size() == 0){
                break;
		// breaks out of the loop
            }
	    x = (int)(Math.random()*wordList.size()-1);
	    int z = 50;
	    while(!(addWordRand(wordList.get(x)))&& z > 0){
		z--;
	    }
	    if (z>0){
		words.add(wordList.get(x));
	    }
	    wordList.remove(x);
	    y++;
	}
    }

    public String toString() {
        String s="";
        
        for (int i=0;i<board.length;i++) {
            for (int j=0;j<board[i].length;j++) {
                s=s+board[i][j];
            }
            s=s+"\n";
        }
        return s;
    }        
    public void getWords(){
	System.out.println(words);
    }
}