Banana.scala

package snake

case class Banana(
            val game: SnakeGame

            ) extends CanTeleport{


  nbrOfStepsSinceLastTeleport = 0
  var vertical = false

  val teleportAfterSteps: Int = 250

  override def update(): Unit = {
    nbrOfStepsSinceLastTeleport += 1
    if (nbrOfStepsSinceLastTeleport > teleportAfterSteps) reset()
  }

  override def reset(): Unit = {
    erase()
    nbrOfStepsSinceLastTeleport = 0
    pos = game.randomFreePos()
    vertical = scala.util.Random.nextBoolean()
    while(pos.x == 0 || pos.x == pos.dim.x - 1 || pos.y == 0 || pos.y == pos.dim.y - 1) {
      pos = game.randomFreePos()
    }
    draw()

  }
  def draw(): Unit = {
    if (vertical) {
      for(i <- -1 to 1) {
        game.drawBlock(pos.x, pos.y + i, Colors.Banana)
      }
    }
    else for(i <- -1 to 1) {
      game.drawBlock(pos.x + i, pos.y, Colors.Banana)
    }


  }
  def erase(): Unit = {
    if (vertical) {
      for(i <- -1 to 1){
        game.eraseBlock(pos.x, pos.y + i)
      }
    }
    else for(i <- -1 to 1){
      game.eraseBlock(pos.x + i, pos.y)
    }
  }

  override def isOccupyingBlockAt(p: Pos): Boolean = {
    p == pos
    if(vertical) {
      p==pos || p==pos + Pos(0, 1, pos.dim) || p==pos + Pos(0, -1, pos.dim )
    }
    else p==pos || p==pos + Pos(1, 0, pos.dim) || p==pos + Pos(-1, 0, pos.dim )
  }
}