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Mandelbrot Fractal

This is an advanced Game-Editor Drawing Demo - meaning only the C-scripts are provided and you should already know the mechanics of starting a canvas actor, adding scripts, etc. If you are not at this level, please see the Let's DRAW! Basic Drawing Tutorial.

MANDELBROT FRACTAL

// Simple Mandelbrot Fractal
// Based on C code by Karthik Narayanaswami
// http://www.metlin.org/graphics/fractals.html

int sx=320;
int sy=240;
double xmin=-2;
double xmax=1.25;
double ymin=-1.25;
double ymax=1.25;
int maxiter=96;

double old_x;
double fx,fy;
int m;

double dx=(xmax-xmin)/sx;
double dy=(ymax-ymin)/sy;

int px;
int py=0;
double x;
double y=ymin;

while (py<sy) {
px=0;
x=xmin;
py++;
while (px<sx) {
px++;

fx=0;
fy=0;
m=0;
do {
old_x=fx;
fx=fx*fx-fy*fy+x;
fy=2*old_x*fy+y;
m++;
} while (((fx*fx+fy*fy)<4) && (m<maxiter));

setpen(m,m,m,0,1);

putpixel(px,py);
x+=dx;
}
y+=dy;
}

Fractals
The frontier where Art and Science meet.

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