int wid = 600;
int hei = 600;

void setup() {
  size(wid, hei);
  background(0);
  smooth();
}

void draw()
{
  fractal(wid, color(random(0,15), random(0,10), random(0,12)));
}

void fractal(float Wid, color Col) {
  noStroke();
  
  int    MaxIterations   = 100;
  double MinimumDistance = 4.0;           
  float acorner = -2.0;
  float bcorner = -1.25;
  float side    = 2.5;
  double Gap = side/Wid;

  for (int x = 0; x < Wid; x++)
  {
    for (int y = 0; y < Wid; y++)
    {
    color nColor;
    double Size = 0;
    int Iterations = 0;
           
    // Convert x, y Cartesian point to a complex number.
    double ComplexPoint_x = x * Gap + acorner;
    double ComplexPoint_y = y * Gap + bcorner;
    double Zero_x = 0.0;
    double Zero_y = 0.0;
    
    do
    {
      // Zero = Zero ^ 2 + ComplexPoint
      double Tmp = (Zero_x + Zero_x) * Zero_y + ComplexPoint_y;
             
      Zero_x = (Zero_x * Zero_x - Zero_y * Zero_y + ComplexPoint_x);
              
      Zero_y = Tmp;
              
      Size = Zero_x * Zero_x + Zero_y * Zero_y;

    } while (Size < MinimumDistance && ++Iterations < MaxIterations);
    
    
      double Distance = Size;
      if (Distance <= MinimumDistance)
      {
        nColor = color(0,0,0);
      }
      else
      {
        nColor = Iterations * Col;
      }
      fill(nColor);
      rect(x, y, 1, 1);
      //g.DrawRectangle(new Pen(ColorMap.crColors[nColor]), x, y, 1, 1);
    }
  }
}