setHighPriority

Sets this avatar as high priority, meaning they will be rendered in large crowds if the size of the crowd causes the view range to decrease below the preferred range. As an example, a typical preferred range is 15 tiles, but if there's a large crowd of people around, it might drop down to say 5 tiles. If there's a player that has been marked as high priority 10 tiles away from us, they will still render to us if marked as high priority.