Right-Click Usable Items
This script is for handling items that can be "used" when right-clicked in an inventory screen. Essentially, any items that are templated as potions (i.e. have a [potion] block in the template) can then include a [potion_use] block to tailor how it reacts to being right-clicked.
In conjunction with charges, multiple-use rejuvenation potions are implemented this way.