Replicating OnMouseEnter with two objects on 2D plane

Hallo,

Is it possible to get the width and height of an object in the world translated into pixel width and height in screen coordinates?

I'm trying to use a custom pointer object that allows players to pick things up using a game pad, so the first step is to register the equivalent of OnMouseEnter, but between two game objects.

Could I be going about it in a different way?

Thanks,

James

 

Yes I could, OnCollisionEnter - durrr

 

I found a better way of doing this: http://forum.unity3d.com/viewtopic.php?t=21844