import java.lang.*;
import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import java.awt.image.*;

public class MandelbrotComplet //implements Complet
{
    private double xLL, yLL,    // lower left  corner of region
                   edge;        // edge length of region
    private int    res,         // resolution: discretize region
                                //  into a grid of res X res squares
                                // res & atom must be powers of 2
                    lim,        // iteration limit
                    cnt[][];    // iteration count for each "point"

    public MandelbrotComplet(MandelbrotCompletArgs args)
    {
        xLL = args.xLL;
        yLL = args.yLL;
        edge = args.edge;
        res = args.res;
        lim = args.lim;
        cnt = args.cnt;
    }

    public void compute()
    {
        double gap = edge/res,   // space between grid "points"
               r, i;             // the representative point
        int row, col;

        for (row = 0, i = yLL; row < res; row++, i += gap)
        for (col = 0, r = xLL; col < res; col++, r += gap)
            cnt[row][col] = getCount(new Complex(r, i), lim);
    }

    // compute the count associated with a complex point
    final private int getCount(Complex c, int lim)
    {
        Complex z = new Complex(c);
        int count = 1;

        for (; z.sizeSquared() < 4.0 && count < lim; count++)
        {
            z.multiply(z);
            z.add(c);
        }
        return count;
    }
}