/*
processing test 2009.11.11
blog.h2caster.net
*/
  int num = 600;
  int speedmin = -3;
  int speedmax = 5;
  int dia = 50;
  int[] xs = new int[num];
  int[] ys = new int[num];
  int[] dxs = new int[num];
  int[] dys = new int[num];
  int[] cds = new int[num];

void setup()
{
  size(600, 600);
  noStroke();
  fill(90,255,90,150);
  for (int i = 0; i < num; i=i+1) {
  xs[i] = int(random(600));
  ys[i] = int(random(110,600));
  dxs[i] = int(random(speedmin,speedmax));
  dys[i] = int(random(speedmin,speedmax));
  cds[i] = int(random(dia,dia+20));
  }
}


void draw() 
{
  background(51);
  for (int i=0; i<num; i=i+1){
  xs[i] = xs[i] + dxs[i];
  ys[i] = ys[i] + dys[i];
  ellipse(xs[i], ys[i], cds[i], cds[i]);
  if (xs[i] >= 600){dxs[i] = 0 - dxs[i];}
  if (ys[i] >= 600){dys[i] = 0 - dys[i];}
  if (xs[i] <= 0)  {dxs[i] = 0 - dxs[i];}
  if (ys[i] <= 100)  {dys[i] = 0 - dys[i];}
  }
}