Curse (Not Ghost) now works properly with no target

[RisingDusk]

This is actually a fairly invasive change that required changing the
.useMove and .runMove methods in scripts.js and simulator.js. I had to add
the battle itself to the argument list so that I could access the
.resolveTarget method if ModifyMove changed the targeting of the move.
Ideally, we may want to consider not even resolving the target until after
ModifyMove, but this is something we (aeo, bmelts, me) should discuss.
Feel free to respond to this commit or (preferably) AIM me.

[bmelts]

Honestly, I feel like it makes more sense to just create a ModifyTarget event (or something of the sort). We'll need it anyway once we implement doubles for things like Lightningrod or Rage Powder.

Also, I believe you could just use this in scripts.js instead of passing the Battle object around.

[Zarel]

lol, this === battle. You didn't need to pass battle into runMove/useMove because that's what this is.

That's why this line looks redundant: BattleScripts.runMove.call(selfB, move, pokemon, target, selfB);

The first selfB passed means "make this = selfB", you don't need to pass it again to make battle = selfB. ;)

btw, our coding convention is lower camelcase on variable names, and adjectives before nouns. So originalMove instead of move_original. And it should probably be named baseMove, anyway, since that's what unmodified things are called.

Not even resolving the target until after ModifyMove isn't an option, because of things like Rage Powder.

[RisingDusk]

Okay, sorry about not realizing that 'this' was the battle. Knowing that makes this all a lot more intuitive, and I'll get right on fixing it up. I'll fix all of your concerns, aeo. I don't think I currently agree with bmelts that we need a ModifyTarget event if only because it gets handled in ModifyMove and now gets properly handled as a result. (This solution with Curse will, down the road, work for doubles with Rage Powder etc) I can do more stuff if necessary, though, but I've tested this and it works nice without being as ugly as before. Thanks guys!