Synopsys   : FILTER_PLAYERS(x)

Defined in : /sys/filter_funs.h

Description: This filter returns an array of interactive objects. Usually
             this are players, but if a player has been possessed it will
             return the possob in which the poor soul has been crammed.
             Login objects are usually interactive too.
Arguments  : object *x - the array with objects to filter.
Returns    : object *  - an array with only interactive objects in it.
