FILE
	/usr/common/lib/mobile.c

NAME
	hook_enter - notify the mobile that somebody has entered

PROTOTYPE
	void hook_enter(object body, int direction)

CALLED BY
	System, Common, Game

DESCRIPTION
	This function is called when a mobile enters the current
	location.  The arguments are the body object of the one
	entering and the direction from which they entered.

	You should access-protect your version of this and all other
	inherited functions, including upgraded() and destructed().

RETURN VALUE
	None.

ERRORS
	Usually none.

SEE ALSO
	hook_leave, move, teleport, ExitD:get_name_for_dir