class TrailSquare extends TrailShape {
  
  TrailSquare(float x, float y, float dx, float dy,
  float size, float dSizePercent, color sColor) {
    super(x, y, dx, dy, size, dSizePercent, sColor);
  }
  
  void drawShape(float x, float y, float size)
  {
    rectMode(CENTER);
    rect(x, y, size, size);
  }
}