Casting Spells Taught by Espers - RESOLVED!

It's pretty cool of you to tackle this, it's something I've meant to look into for a while. I'm sure you're learning a lot.

One thing to note, balance-wise, assuming you intend to use the same kind of system in the menu code... if Espers grant spells upon equip, you really have unlimited access to every spell out of battle upon receiving an Esper. It's not a bad thing in itself, but switching Espers around just to use their spells isn't fun. FFTA didn't run into this issue because you automatically healed between battles. With this in mind, I think it would be best to just straight up enable all spells from an Esper (in the menu, not in battle) as soon as you acquire it, and not bother with checking for which Esper is equipped at all.

A different way of doing it would be to enable casting of spells directly from the Esper menu. You can already point the hand pointer to spells there (to see their descriptions), might as well make them castable by selecting them from there.