> > ----- Original Message -----
> > From: "Jeremy Maloney" <riodan@CYBERSPACE.ORG>
> > > Hey all, I'm still after several months fiddling with this damnable
> > > gate spell I coded in and I need an idea as to what to put in to
> > > remove or purge the gate once you enter it. Mind you this is a spell.
> > > The primary function of the spell is of course to open a gate to a
> > > location and then after those who want to enter, enter the gate,
> > > and the caster steps through, the gate should immediately vanish.
> > >
> > > This is taken from my spells.c file:
> > >
> > > #define PORTAL_OBJ 20 /* the vnum of the portal object */
> > > ASPELL(spell_gate)
> > > {
> > > struct obj_data *portal, *tportal;
> > > struct extra_descr_data *new_descr, *new_tdescr;
> > > char buf[80];
> > >
> > > if (ch == NULL || victim == NULL)
> > > return;
> > >
> > > /* create the portal */
> > > portal = read_object(PORTAL_OBJ, VIRTUAL);
> > > GET_OBJ_VAL(portal, 0) = victim->in_room;
hereabout, add
GET_OBJ_VAL(portal, 3)=(!IS_NPC(ch) ? GET_IDNUM(ch) : 0);
> > > GET_OBJ_TIMER(portal) = (int) (GET_LEVEL(ch) / 10);
> > > CREATE(new_descr, struct extra_descr_data, 1);
> > > new_descr->keyword = str_dup("portal gate gateway");
> > > sprintf(buf, "You can barely make out %s.", world[victim->in_room].name);
> > > new_descr->description = str_dup(buf);
> > > new_descr->next = portal->ex_description;
> > > portal->ex_description = new_descr;
> > > obj_to_room(portal, ch->in_room);
> > > act("$n conjures a gateway out of thin air.",
> > > TRUE, ch, 0, 0, TO_ROOM);
> > > act("You conjure a gateway out of thin air.",
> > > TRUE, ch, 0, 0, TO_CHAR);
> > > /* create the portal at the other end */
> > > tportal = read_object(PORTAL_OBJ, VIRTUAL);
> > > GET_OBJ_VAL(tportal, 0) = ch->in_room;
and here:
GET_OBJ_VAL(tportal, 3)=(!IS_NPC(ch) ? GET_IDNUM(ch) : 0);
> > > GET_OBJ_TIMER(tportal) = (int) (GET_LEVEL(ch) / 15);
> > > CREATE(new_tdescr, struct extra_descr_data, 1);
> > > new_tdescr->keyword = str_dup("portal gate gateway");
> > > sprintf(buf, "You can barely make out %s.", world[ch->in_room].name);
> > > new_tdescr->description = str_dup(buf);
> > > new_tdescr->next = tportal->ex_description;
> > > tportal->ex_description = new_tdescr;
> > > obj_to_room(tportal, victim->in_room);
> > > act("A glowing gateway appears out of thin air.",
> > > TRUE, victim, 0, 0, TO_ROOM);
> > > act("A glowing gateway opens here for you.",
> > > TRUE, victim, 0, 0, TO_CHAR);
> > > }
and in do_enter, where you let people go through the portal (we were asked for an idea - an idea, not code, is given):
1. if the person entering is the caster (check on GET_IDNUM()):
2. search the target room for the corresponding (return)portal (can be recognized since it leads to ch->in_room && has GET_IDNUM(ch) set as value 3.
when found, first move the char, then either set GET_OBJ_TIMER() to 0, or extract_obj() right away for both of the portals.
You might even want to send a message to the room, like 'As <whoever> enters the gate a large flash blinds you momentarily. When you are able to see again, the gate has disappeared.' :P
This should work, because GET_IDNUM() is unique. However, it is also PC only, and needs a !IS_NPC() check every time you use it.
Thanks to Tony Robbins for a nice (readable) piece of code.
Welcor of Cruel World
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