package awb;
import java.awt.*;
import java.util.*;

public class Utilities
{

    // returns a number: low <= num < high.  low and high must
    // be nonnegative or it will return 0

    private static java.util.Random generator;
    public static int getRandomInt(int low, int high)
    {
	if (generator == null) generator = new java.util.Random();

	if (low == high) return low;

	if (low > high)
	{
	    int t = low;
	    low = high;
	    high = t;
	}

	if (low < 0) return 0;

	int range = high - low;
	int temp = generator.nextInt() % range;
	if (temp < 0) return temp * -1;
	else return temp;
    }

    public static void pause(int howLong)
    {
	try { Thread.sleep(howLong); }
	catch (InterruptedException ex) { }
    }

    public static void start(Runnable r)
    {
	Thread t = new Thread(r);
	t.start();
    }

    public static String wrap(String data, int width, FontMetrics fm) 
    {
	StringTokenizer stok = new StringTokenizer(data, " \n", true);
        data = "";
        String next, line = "";
        while (stok.hasMoreTokens()) try 
	{
            next = stok.nextToken();
            line += next;
            if (fm.stringWidth(line) > width) 
	    {
                data += "\n";
                line = next;
            }

            if (line.endsWith("\n")) line = "";

            // System.out.println("next: -" + next +
                //      "-\nline: " + line + "\n\n");
            data += next;
        }
        catch (NoSuchElementException e) { }
        return data;
    }
}