Half Life 2 Mod: Using the Force Thread

Hi, I'd like to create a mod where you're able to use the Force like in Star Wars. Now I know this is just the upgraded Gravity Gun's abilities but I am looking to be able to use these abilities while holding ANY weapon. I have installed Source SDK 2007 and am editting the C++ code to achieve this. The first thing I did was set the Gravity Gun to always be upgraded but I'm not sure how to go further. Can I get some advice on how to go about doing this? Thank you all.

Edited by: workisnotfun