/*    /verbs/items/wield.c
 *    From the Dead Souls Object Library
 *    The command to allow people to wield weapons
 *    Created by Descartes of Borg 951018
 *    Version: @(#) wield.c 1.2@(#)
 *    Last modified: 97/01/01
 */

#include <lib.h>

inherit LIB_VERB;

string array GetFreeLimbs(object who) {
    string array limbs = who->GetWieldingLimbs();

    limbs = filter(limbs, (: !$(who)->GetWielded($1) :));
    return limbs;
}

static void create() {
    verb::create();
    SetVerb("wield");
    SetRules("OBS", "OBS in STR", "OBS with STR");
    SetErrorMessage("Wield what?  Perhaps you mean to specify in which "
      "limbs?");
    SetHelp(
      "Syntax: <wield all>\n"
      "        <wield OBJ>\n"
      "        <wield OBJ in LIMB>\n"
      "        <wield OBJ with LIMB>\n"
      "\n"
      "This command sets the weapon you name to be wielded in the "
      "limb you specify.\n\n"
      "Note that a limb can be a single limb, or a list of limbs "
      "separated by a comma, or the word \"and\", depending on "
      "how many limbs are required for wielding the weapon.  For "
      "example:\n"
      "\twield the rusty sword with my right hand and left hand\n"
      "\twield the artrell sword with first hand, second hand, and "
      "third hand\n"
      "\n"
      "See also: wear");
}

mixed can_wield_obj() { 
    if( !sizeof(this_player()->GetWieldingLimbs()) ) {
        return "You have no limbs with which to wield!";
    }
    if( this_player()->GetParalyzed() ) {
        return "You cannot do anything";
    }
    return 1;
}

mixed can_wield_obj_word_str() {
    return can_wield_obj();
}

mixed do_wield_obj(object ob) {
    string array limbs = GetFreeLimbs(this_player());
    int hands = ob->GetHands();

    if(ob->GetEquipped())
        return write("You're already wielding it!");

    if( hands < sizeof(limbs) ) {
        limbs = limbs[0..(hands-1)];
    }
    else if( hands > sizeof(limbs) ) {
        return write("You're out of limbs to wield with!");
    }
    return ob->eventEquip(this_player(), limbs);
}

mixed do_wield_obj_word_str(object ob, string word, string str) {
    return ob->eventEquip(this_player(), explode_list(str));
}

mixed do_wield_obs(mixed array targs) {
    object array obs;

    if( !sizeof(targs) ) {
        this_player()->eventPrint("There is no such thing to be wielded.");
        return 1;
    }
    obs = filter(targs, (: objectp :));
    if( !sizeof(obs) ) {
        mapping messages = unique_mapping(targs, (: $1 :));

        foreach(string msg in keys(messages)) {
            this_player()->eventPrint(msg);
        }
        return 1;
    }
    foreach(object item in obs) {
        string array limbs = GetFreeLimbs(this_player());
        int hands = item->GetHands();

        if( sizeof(limbs) < hands ) {
            this_player()->eventPrint("You don't have anywhere to wield " +
              item->GetDefiniteShort() + ".");
        }
        else {
            mixed tmp;

            if( hands < sizeof(limbs) ) {
                limbs = limbs[0..(hands-1)];
            }
            tmp = item->CanEquip(this_player(), limbs);
            if( tmp != 1 ) {
                if( !tmp ) {
                    this_player()->eventPrint("You cannot wield " +
                      item->GetDefiniteShort() + ".");
                }
                else {
                    this_player()->eventPrint(tmp);
                }
            }
            else {
                item->eventEquip(this_player(), limbs);
            }
        }
    }
    return 1;
}