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class Bug(initialPos: Pos):

  private var currentPos = initialPos

  def pos = this.currentPos

  val radius = 15
  private var yVelocity = 0.0

  override def toString = "center at " + this.pos + ", radius " + this.radius

  def move(lisaaY: Double) =
    this.currentPos = this.currentPos.addY(lisaaY).clampY(0, 350)

  def flap(yChange: Double) =
    yVelocity = -yChange

  def fall() =
    if this.currentPos.y < 350 then
      yVelocity = yVelocity + 2
    move(yVelocity)

  def isInBounds =
    this.currentPos.y <= 0 || this.currentPos.y >= 350

end Bug