Veritcal Boxes

gistfile1.txt

class Box {
  float x, y, w, h, speed;
  boolean movingForward, movingUp;
  
  void drawItself() {
    rect(x, y, w, h);
  }
  
  void update() {
    if (movingForward)
      x += speed;
    else
      x -= speed;
      
    if (movingUp)
      y -= speed;
    else
      y += speed;
  }
  
  void check() {
    if (x + w >= width)
      movingForward = false;
    if (x <= 0)
      movingForward = true;
      
    if (y + h >= height)
      movingUp = true;
    if (y <= 0)
      movingUp = false;
  }
}

Box[] myBoxes;

void setup() {
  size (500, 500);
  
  int m = 10;
  for () {
    myBoxes[i] = new Box();
    myBoxes[i].x = 10;
    myBoxes[i].y = 50;
    myBoxes[i].w = m;
    myBoxes[i].h = 50;
    myBoxes[i].speed = 2;
    myBoxes[i].movingForward = true;
    myBoxes[i].movingUp = false;
  }
}

void draw() {
  background(150);
  myBox.drawItself();
  myBox.update();
  myBox.check();
}