FlowFieldRunner runner = new FlowFieldRunner();

void setup()
{
    //size(1800, 1000);
    size(600, 600);
    sample00();
}

void draw()
{
    runner.update();
}

void keyPressed() {
    println(" key " + key + " pressed");
    
    if (key == 's')
        {
        String fn = "captures/" + runner.sampleName  + ".png";
        save(fn);
    }
    
}