in pull requests, you are able to modify base classes. that's how forge adds all of the abilities it adds. it modifies the original code. hence why you need to put minecraft forge in the jar file.
... why did I not think of that. On to the second problem, how do I save the location of the player at a certain point in time and then retrieve it later on? if needed, I can save it to a file and then read it from there, but I'd prefer to save it to NBT data.
does anyone know if there is a way to add another currency for villagers? I made a mod that adds money and would like to know if it's possible to add something like this.
I think you can use reflection to replace the vanilla blocks with custom blocks, but that may cause incompatibilities with other mods if you change too much.
no problem. I've had my share of problems (and still do today) so I try to help as much as I can because it's so frustrating trying to get a mod to work when you're trying something new that you've never done before.