Processing Sketch - Mouse Comet

Here is the first sketch i created. I call it Mouse Comet. Hit a mouse button to create a comet that follows your mouse cursor. Again, this was a quick test for me to get back into coding and thinking like a programmer.

/*******************************************
*    Test Program
*    Kyle Kuepker
*    19 July 2010
*
*    Simple Test Program To Draw Lines with
*     Mouse
********************************************/
 
int array_max = 60;
int index_last = 0;
float shrink_index = 1.01;
int mx[] = new int[array_max];
int my[] = new int[array_max];
int mw[] = new int[array_max];
PImage reticle;
PFont fontA;
 
void setup()
{
  size(400, 400);
  reticle = createImage(11, 11, ARGB);
  formReticleBullseye();
  noCursor();
  smooth();
  noStroke();
  fill(255, 150);
 
}
 
void draw()
{
  background(50);
  image(reticle, mouseX-5, mouseY-5);
   
  if(mousePressed)
  {
    mx[index_last] = mouseX;
    my[index_last] = mouseY;
    mw[index_last] = 35;   
    index_last++;
  }
   
  for (int i = 0; i < array_max; i++)
  {
    mw[i] /= shrink_index;
    if(int(mw[i]) < 1)
    {
      stroke(0);
      fill(0);
    }
    else
    {
      noStroke();
      fill(255, 150);
    }
    ellipse(mx[i], my[i], mw[i], mw[i]);
  }
   
  if(index_last == array_max)
  {
    index_last = 0;
  }
}

/*************************
 Form a reticle instead of a cursor
*************************/
void formReticleSquare()
{
  for(int i=0; i < reticle.pixels.length; i++)
  {
    reticle.pixels[0] = color(255);
    reticle.pixels[1] = color(255);
    reticle.pixels[2] = color(255);
    reticle.pixels[3] = color(255);
    reticle.pixels[4] = color(255);
    reticle.pixels[5] = color(255);
    reticle.pixels[6] = color(255);
    reticle.pixels[7] = color(255);
    reticle.pixels[8] = color(255);
    reticle.pixels[9] = color(255);
    reticle.pixels[10] = color(255);
    reticle.pixels[11] = color(255);
    reticle.pixels[21] = color(255);
    reticle.pixels[22] = color(255);
    reticle.pixels[32] = color(255);
    reticle.pixels[33] = color(255);
    reticle.pixels[43] = color(255);
    reticle.pixels[44] = color(255);
    reticle.pixels[54] = color(255);
    reticle.pixels[55] = color(255);
    reticle.pixels[65] = color(255);
    reticle.pixels[66] = color(255);
    reticle.pixels[76] = color(255);
    reticle.pixels[77] = color(255);
    reticle.pixels[87] = color(255);
    reticle.pixels[88] = color(255);
    reticle.pixels[98] = color(255);
    reticle.pixels[99] = color(255);
    reticle.pixels[109] = color(255);
    reticle.pixels[110] = color(255);
    reticle.pixels[111] = color(255);
    reticle.pixels[112] = color(255);   
    reticle.pixels[113] = color(255);   
    reticle.pixels[114] = color(255);   
    reticle.pixels[115] = color(255);   
    reticle.pixels[116] = color(255);   
    reticle.pixels[117] = color(255);   
    reticle.pixels[118] = color(255);   
    reticle.pixels[119] = color(255);   
    reticle.pixels[120] = color(255);
  }
}
 
void formReticleBullseye()
{
  for(int i=0; i < reticle.pixels.length; i++)
  {
    // Vertical Line
    reticle.pixels[5] = color(255);
    reticle.pixels[16] = color(255);
    reticle.pixels[27] = color(255);
    reticle.pixels[38] = color(255);
    reticle.pixels[49] = color(255);
    reticle.pixels[60] = color(255);
    reticle.pixels[71] = color(255);
    reticle.pixels[82] = color(255);
    reticle.pixels[93] = color(255);
    reticle.pixels[104] = color(255);
    reticle.pixels[115] = color(255);
    // Horizontal Line
    reticle.pixels[55] = color(255);
    reticle.pixels[56] = color(255);
    reticle.pixels[57] = color(255);
    reticle.pixels[58] = color(255);
    reticle.pixels[59] = color(255);
    reticle.pixels[60] = color(255);
    reticle.pixels[61] = color(255);
    reticle.pixels[62] = color(255);
    reticle.pixels[63] = color(255);
    reticle.pixels[64] = color(255);
    reticle.pixels[65] = color(255);
    //  Circle
    reticle.pixels[35] = color(255);
    reticle.pixels[46] = color(255);
    reticle.pixels[68] = color(255);
    reticle.pixels[79] = color(255);
    reticle.pixels[41] = color(255);
    reticle.pixels[52] = color(255);
    reticle.pixels[74] = color(255);
    reticle.pixels[85] = color(255);
    reticle.pixels[25] = color(255);
    reticle.pixels[26] = color(255);   
    reticle.pixels[28] = color(255);   
    reticle.pixels[29] = color(255);   
    reticle.pixels[91] = color(255);   
    reticle.pixels[92] = color(255);   
    reticle.pixels[94] = color(255);   
    reticle.pixels[95] = color(255);
  }
}