Synopsys   : FILTER_REAL_PLAYERS(x)

Defined in : /sys/filter_funs.h

Description: This should return the 'real' players that are in a certain
             array. Technically it returns all elements that inherit the
             file /std/player_sec.c.
Arguments  : object *x - the array of objects to test.
Returns    : object *  - the array of interactives that are true players.
