What I want to do is when a player picks up an item I can check the username against mine and if it matches they can keep the item and if it doesn't it gets deleted out of there inventory so only I can use the item.
I'm currently trying to do this onItemUseFist to be honest I have no idea where to start with doing this. I already have the item I want to do this to. I just don't know how to do that. I think xComp does something like this with his glasses in Mystcraft.
Thanks in advance,