Attributes based on (or affected by) other attributes

It would be convenient if characters could have attributes that were affected by other attributes. For example: In Dungeon World, the Bard's health is 6 plus their constitution. Constitution is also something that can change through the game via leveling up, etc. It would be nice (given a "Constitution" attribute) to be able to set the "Health" attribute max to 6+@Constitution. This way, if/when the attribute it is based on gets altered then the dependent attributes will get changed accordingly. This has a chance of leading to circular dependencies in attributes, but those can be checked for (and highlighted in red or something) upon entering a new value in the box. (And the change not saved until the value is valid.)

Combined with this , you could wind up with a character which has the attributes: Strength: 19 Constitution: 13 STR: $Modifiers[@Strength] CON: $Modifiers[@Constitution] Health: 8+@Constitution etc Giving players stats and their modifiers as attributes, but only needing to update the base number during level progression.

Jaadus, most people put modifiers in the first box and attributes in the second box. Example: Strength: 4 / 19 Constitution 1 / 13 If they would like to autocalculate the modifier instead they can put (note: using 3.5/PF method of calculating modifiers): Strength: floor((19-10)/2) / 19 - Gauss