final int N_BLUBS = 64;

int[] blub_x = new int[N_BLUBS];
int[] blub_y = new int[N_BLUBS];
int[] blub_state = new int[N_BLUBS];
int[] blub_lifetime = new int[N_BLUBS];

void setupBlubber()
{
  for(int i=0;i<N_BLUBS;++i)
    blub_x[i] = -1;
}

void draw_blubber()
{
  if(random(1.0) < 0.7) // Make new blubber
  {
    int i=0;
    while((blub_x[i] != -1) && (i < N_BLUBS))
      ++i;
      
    if(blub_x[i] == -1)
    {
      blub_x[i] = (int)random(W);
      blub_y[i] = (int)random(H);
      blub_lifetime[i] = 40 + (int)random(60);
      blub_state[i] = 0;
    }
  }
  
  // Update and draw blubbers
  
  for(int i=0; i<N_BLUBS; ++i)
  {
    if(blub_x[i] != -1)
    {
      // Update
      blub_state[i]+=2;
      blub_y[i]--;
      
      // Draw
      int dia = (int)(1.5*sqrt(blub_state[i]));
      int bright = 50 + blub_state[i] / 7;
      
      stroke(bright,bright,bright);
      fill(bright,bright,bright);
      ellipse(blub_x[i], blub_y[i], 2*dia, 2*dia);
      
      // (Kill)
      if(blub_state[i] > blub_lifetime[i])
        blub_x[i] = -1;
    }
  }
}