I need a way of accessing the position of the block being destroyed in Block.idDropped(). I am coding in 1.6. I need this to execute some code if a certain bool is true when the block is destroyed by any means.

I also need access to an instance of World lol

Can't you do whatever it is you need to do in the breakBlock method? That gives you both the position and the world object, and is only called when the block is destroyed. If it's about dropping items, just don't drop any items by default, and drop them yourself from within the breakBlock method.