public void chooseTileToRotate()
{
if (highlight == null)
{
Vector3 highlightPosition = new Vector3(transform.position.x, transform.position.y, tileHighlight.transform.position.z);
highlight = (GameObject)Instantiate(tileHighlight, highlightPosition, tileHighlight.transform.rotation);
highlight.GetComponent <ChooseRotationTile>().tile = this;
displayArrow();
Debug.Assert(associatedTile.canRotateSisterTile());
associatedTile.getSisterTile().GetComponent <TileBehaviorIHM>().chooseTileToRotate();
}
}