int count = 200;
int x = 0;
float[] posX = new float[count];
float[] posX2 = new float[count]; 
float[] posY = new float[count];
float[] posY2 = new float[count];
float[] speedX = new float[count];
float[] speedX2 = new float[count];
float[] speedY = new float[count];
float[] speedY2 = new float[count];
float[] sizeW = new float[count];
float[] sizeH = new float[count];
int[] colors = new int[count];

void setup() { 
  size(900, 900);
  noStroke();
  for (int i=0; i < posX.length; i++) { 
    posX[i] = width/2; 
    posY[i] = height/2;
    posX2[i] = width/4;
    posY2[i] = height/4;
    speedX[i] = random(-5, 5); 
    speedY[i] = random(-5, 5); 
    speedX2[i] = random(-15, 15);
    speedY2[i] = random(-15, 15);
    sizeW[i] = random(20, 25); 
    sizeH[i] = random(20, 100); 
    colors[i] = int(random(0, 255));
  }
} 
void draw() { 
  //background(255, 0, 0, 20); 

  fill(255,50); 
  rect(0, 0, width, height); 

  for (int i = 0; i < posX.length; i++) { 
    //update all positions 
    posX[i] += speedX[i]; 
    posY[i] += speedY[i];
    posX2[i] += speedX2[i]; 
    posY2[i] += speedY2[i];
    //draw all balls 
    fill(colors[i], random(colors[i]), random(255)); 
    rect(posX[i], posY[i], sizeW[i], sizeW[i]); 
    ellipse(posX2[i], posY2[i], sizeW[i], sizeW[i]);
    //check boundaries for all balls 

    if (posX[i] < 40+sizeW[i]/2 || posX[i] > (width-40)-sizeW[i]/2 ) { 
      speedX[i] = -speedX[i];
    } 
    if (posY[i] < 40+sizeW[i]/2 || posY[i] > (height-40)-sizeW[i]/2) { 
      speedY[i] = -speedY[i];
    }
    if (posX2[i] < 40+sizeW[i]/2 || posX2[i] > (width-40)-sizeW[i]/2 ) { 
      speedX2[i] = -speedX2[i];
    } 
    if (posY2[i] < 40+sizeW[i]/2 || posY2[i] > (height-40)-sizeW[i]/2) { 
      speedY2[i] = -speedY2[i];
    }
  }

  if (x < 1000) {
    line(x, 0, x, 1);
    x = x + 1;
  } else {
    exit();
    //noLoop();
  }
   saveFrame("frames/line-####.png");

}