Pesudo Code

Do it how u like.

If the player is nearby then
(EMob Location = + or - Player Location)

The main thing your trying to do is get the EMob
and Player location to equal the same location.
In this the EMob will compete for this space.
Once its close enough you can also have it check to
see if its within range and attack the player. Or setup
a Bump function that attacks the player each time the
player gets bumped.

LJR