Hello.
I'm fairly uncertain where to put this thread so feel free to move it.

My question is: How do you make a plugin that's able to interact with mods?
to give a little example: Lets say i want an event to fire when someone opens a buildcraft machine. What would i need to include in eclipse and how would I let it recognize the id?

This might sound a bit weird, but it would be awesome if someone could explain me or show me a video. Feel free to ask any more information you need.