Default behavior is to check the amount of LP currently inside the Altar. To modify the behavior to check the amount of LP in a network (As it did in 1.7.10), place a Blood Stone Brick (either kind) directly underneath the altar.
tterrag is a meany face and yelled at me for using class.getSimpleName(). So here's an API-friendly re-work of the registration system. This allows all our Items/Blocks to be obtained via the API. Just add a new enum.