[TC 3.3.5a] Jump Height?

[Kobiesan]

Is jump height something that'd hardcoded into WoW? Can it be changed somewhere? My end goal is to make a spell that increases jump height.

Update:
Apparently ArcEmu devs found out a way to change jump height with a custom GM command a long time ago but I have no idea where they pulled it and made it from. Link here.

There was also an ownedcore member a looong time ago who modified some values and managed to jump higher. But I have absolutely no idea what he did it's way above me. Link here (Jump Height)