mob_cmds.c

/***************************************************************************
 *  Original Diku Mud copyright (C) 1990, 1991 by Sebastian Hammer,        *
 *  Michael Seifert, Hans Henrik St{rfeldt, Tom Madsen, and Katja Nyboe.   *
 *                                                                         *
 *  Merc Diku Mud improvments copyright (C) 1992, 1993 by Michael          *
 *  Chastain, Michael Quan, and Mitchell Tse.                              *
 *                                                                         *
 *  In order to use any part of this Merc Diku Mud, you must comply with   *
 *  both the original Diku license in 'license.doc' as well the Merc       *
 *  license in 'license.txt'.  In particular, you may not remove either of *
 *  these copyright notices.                                               *
 *                                                                         *
 *  Much time and thought has gone into this software and you are          *
 *  benefitting.  We hope that you share your changes too.  What goes      *
 *  around, comes around.                                                  *
 ***************************************************************************/

/***************************************************************************
*	ROM 2.4 is copyright 1993-1995 Russ Taylor			   *
*	ROM has been brought to you by the ROM consortium		   *
*	    Russ Taylor (rtaylor@pacinfo.com)				   *
*	    Gabrielle Taylor (gtaylor@pacinfo.com)			   *
*	    Brian Moore (rom@rom.efn.org)				   *
*	By using this code, you have agreed to follow the terms of the	   *
*	ROM license, in the file Rom24/doc/rom.license			   *
***************************************************************************/

/***************************************************************************
 *                                                                         *
 *  Based on MERC 2.2 MOBprograms by N'Atas-ha.                            *
 *  Written and adapted to ROM 2.4 by                                      *
 *          Markku Nylander (markku.nylander@uta.fi)                       *
 *                                                                         *
 ***************************************************************************/

#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "merc.h"
#include "mob_cmds.h"

DECLARE_DO_FUN(do_look);
extern ROOM_INDEX_DATA *find_location(CHAR_DATA *, char *);

/*
 * Command table.
 */
const struct mob_cmd_type mob_cmd_table[] =
{
    {"asound", do_mpasound},
    {"gecho", do_mpgecho},
    {"zecho", do_mpzecho},
    {"kill", do_mpkill},
    {"assist", do_mpassist},
    {"junk", do_mpjunk},
    {"echo", do_mpecho},
    {"echoaround", do_mpechoaround},
    {"echoat", do_mpechoat},
    {"mload", do_mpmload},
    {"oload", do_mpoload},
    {"purge", do_mppurge},
    {"goto", do_mpgoto},
    {"at", do_mpat},
    {"transfer", do_mptransfer},
    {"gtransfer", do_mpgtransfer},
    {"otransfer", do_mpotransfer},
    {"force", do_mpforce},
    {"gforce", do_mpgforce},
    {"vforce", do_mpvforce},
    {"cast", do_mpcast},
    {"damage", do_mpdamage},
    {"remember", do_mpremember},
    {"forget", do_mpforget},
    {"delay", do_mpdelay},
    {"cancel", do_mpcancel},
    {"call", do_mpcall},
    {"flee", do_mpflee},
    {"remove", do_mpremove},
    {"", 0}
};

void do_mob(CHAR_DATA * ch, char *argument)
{
    /*
     * Security check!
     */
    if (ch->desc != NULL && get_trust(ch) < MAX_LEVEL)
	return;
    mob_interpret(ch, argument);
}
/*
 * Mob command interpreter. Implemented separately for security and speed
 * reasons. A trivial hack of interpret()
 */
void mob_interpret(CHAR_DATA * ch, char *argument)
{
    char buf[MAX_STRING_LENGTH], command[MAX_INPUT_LENGTH];
    int cmd;

    argument = one_argument(argument, command);

    /*
     * Look for command in command table.
     */
    for (cmd = 0; mob_cmd_table[cmd].name[0] != '\0'; cmd++) {
	if (command[0] == mob_cmd_table[cmd].name[0]
	    && !str_prefix(command, mob_cmd_table[cmd].name)) {
	    (*mob_cmd_table[cmd].do_fun) (ch, argument);
	    tail_chain();
	    return;
	}
    }
    sprintf(buf, "Mob_interpret: invalid cmd from mob %d: '%s'",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0, command);
    bug(buf, 0);
}

char *mprog_type_to_name(int type)
{
    switch (type) {
    case TRIG_ACT:
	return "ACT";
    case TRIG_SPEECH:
	return "SPEECH";
    case TRIG_RANDOM:
	return "RANDOM";
    case TRIG_FIGHT:
	return "FIGHT";
    case TRIG_HPCNT:
	return "HPCNT";
    case TRIG_DEATH:
	return "DEATH";
    case TRIG_ENTRY:
	return "ENTRY";
    case TRIG_GREET:
	return "GREET";
    case TRIG_GRALL:
	return "GRALL";
    case TRIG_GIVE:
	return "GIVE";
    case TRIG_BRIBE:
	return "BRIBE";
    case TRIG_KILL:
	return "KILL";
    case TRIG_DELAY:
	return "DELAY";
    case TRIG_SURR:
	return "SURRENDER";
    case TRIG_EXIT:
	return "EXIT";
    case TRIG_EXALL:
	return "EXALL";
    default:
	return "ERROR";
    }
}

/* 
 * Displays MOBprogram triggers of a mobile
 *
 * Syntax: mpstat [name]
 */
void do_mpstat(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_STRING_LENGTH];
    MPROG_LIST *mprg;
    CHAR_DATA *victim;
    int i;

    one_argument(argument, arg);

    if (arg[0] == '\0') {
	send_to_char("Mpstat whom?\n\r", ch);
	return;
    }
    if ((victim = get_char_world(ch, arg)) == NULL) {
	send_to_char("No such creature.\n\r", ch);
	return;
    }
    if (!IS_NPC(victim)) {
	send_to_char("That is not a mobile.\n\r", ch);
	return;
    }
    if ((victim = get_char_world(ch, arg)) == NULL) {
	send_to_char("No such creature visible.\n\r", ch);
	return;
    }
    sprintf(arg, "Mobile #%-6d [%s]\n\r",
	    victim->pIndexData->vnum, victim->short_descr);
    send_to_char(arg, ch);

    sprintf(arg, "Delay   %-6d [%s]\n\r",
	    victim->mprog_delay,
	    victim->mprog_target == NULL
	    ? "No target" : victim->mprog_target->name);
    send_to_char(arg, ch);

    if (!victim->pIndexData->mprog_flags) {
	send_to_char("[No programs set]\n\r", ch);
	return;
    }
    for (i = 0, mprg = victim->pIndexData->mprogs; mprg != NULL;
	 mprg = mprg->next) {
	sprintf(arg, "[%2d] Trigger [%-8s] Program [%4d] Phrase [%s]\n\r",
		++i,
		mprog_type_to_name(mprg->trig_type),
		mprg->vnum,
		mprg->trig_phrase);
	send_to_char(arg, ch);
    }

    return;

}

/*
 * Displays the source code of a given MOBprogram
 *
 * Syntax: mpdump [vnum]
 */
void do_mpdump(CHAR_DATA * ch, char *argument)
{
    char buf[MAX_INPUT_LENGTH];
    MPROG_CODE *mprg;

    one_argument(argument, buf);
    if ((mprg = get_mprog_index(atoi(buf))) == NULL) {
	send_to_char("No such MOBprogram.\n\r", ch);
	return;
    }
    page_to_char(mprg->code, ch);
}

/*
 * Prints the argument to all active players in the game
 *
 * Syntax: mob gecho [string]
 */
void do_mpgecho(CHAR_DATA * ch, char *argument)
{
    DESCRIPTOR_DATA *d;

    if (argument[0] == '\0') {
	bug("MpGEcho: missing argument from vnum %d",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    for (d = descriptor_list; d; d = d->next) {
	if (d->connected == CON_PLAYING) {
	    if (IS_IMMORTAL(d->character))
		send_to_char("Mob gecho> ", d->character);
	    send_to_char(argument, d->character);
	    send_to_char("\n\r", d->character);
	}
    }
}

/*
 * Prints the argument to all players in the same area as the mob
 *
 * Syntax: mob zecho [string]
 */
void do_mpzecho(CHAR_DATA * ch, char *argument)
{
    DESCRIPTOR_DATA *d;

    if (argument[0] == '\0') {
	bug("MpZEcho: missing argument from vnum %d",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if (ch->in_room == NULL)
	return;

    for (d = descriptor_list; d; d = d->next) {
	if (d->connected == CON_PLAYING
	    && d->character->in_room != NULL
	    && d->character->in_room->area == ch->in_room->area) {
	    if (IS_IMMORTAL(d->character))
		send_to_char("Mob zecho> ", d->character);
	    send_to_char(argument, d->character);
	    send_to_char("\n\r", d->character);
	}
    }
}

/*
 * Prints the argument to all the rooms aroud the mobile
 *
 * Syntax: mob asound [string]
 */
void do_mpasound(CHAR_DATA * ch, char *argument)
{

    ROOM_INDEX_DATA *was_in_room;
    int door;

    if (argument[0] == '\0')
	return;

    was_in_room = ch->in_room;
    for (door = 0; door < 6; door++) {
	EXIT_DATA *pexit;

	if ((pexit = was_in_room->exit[door]) != NULL
	    && pexit->u1.to_room != NULL
	    && pexit->u1.to_room != was_in_room) {
	    ch->in_room = pexit->u1.to_room;
	    MOBtrigger = FALSE;
	    act(argument, ch, NULL, NULL, TO_ROOM);
	    MOBtrigger = TRUE;
	}
    }
    ch->in_room = was_in_room;
    return;

}

/*
 * Lets the mobile kill any player or mobile without murder
 *
 * Syntax: mob kill [victim]
 */
void do_mpkill(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];
    CHAR_DATA *victim;

    one_argument(argument, arg);

    if (arg[0] == '\0')
	return;

    if ((victim = get_char_room(ch, arg)) == NULL)
	return;

    if (victim == ch || IS_NPC(victim) || ch->position == POS_FIGHTING)
	return;

    if (IS_AFFECTED(ch, AFF_CHARM) && ch->master == victim) {
	bug("MpKill - Charmed mob attacking master from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    multi_hit(ch, victim, TYPE_UNDEFINED);
    return;
}

/*
 * Lets the mobile assist another mob or player
 *
 * Syntax: mob assist [character]
 */
void do_mpassist(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];
    CHAR_DATA *victim;

    one_argument(argument, arg);

    if (arg[0] == '\0')
	return;

    if ((victim = get_char_room(ch, arg)) == NULL)
	return;

    if (victim == ch || ch->fighting != NULL || victim->fighting == NULL)
	return;

    multi_hit(ch, victim->fighting, TYPE_UNDEFINED);
    return;
}

/*
 * Lets the mobile destroy an object in its inventory
 * it can also destroy a worn object and it can destroy 
 * items using all.xxxxx or just plain all of them 
 *
 * Syntax: mob junk [item]
 */

void do_mpjunk(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];
    OBJ_DATA *obj;
    OBJ_DATA *obj_next;

    one_argument(argument, arg);

    if (arg[0] == '\0')
	return;

    if (str_cmp(arg, "all") && str_prefix("all.", arg)) {
	if ((obj = get_obj_wear(ch, arg)) != NULL) {
	    unequip_char(ch, obj);
	    extract_obj(obj);
	    return;
	}
	if ((obj = get_obj_carry(ch, arg, ch)) == NULL)
	    return;
	extract_obj(obj);
    } else
	for (obj = ch->carrying; obj != NULL; obj = obj_next) {
	    obj_next = obj->next_content;
	    if (arg[3] == '\0' || is_name(&arg[4], obj->name)) {
		if (obj->wear_loc != WEAR_NONE)
		    unequip_char(ch, obj);
		extract_obj(obj);
	    }
	}

    return;

}

/*
 * Prints the message to everyone in the room other than the mob and victim
 *
 * Syntax: mob echoaround [victim] [string]
 */

void do_mpechoaround(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];
    CHAR_DATA *victim;

    argument = one_argument(argument, arg);

    if (arg[0] == '\0')
	return;

    if ((victim = get_char_room(ch, arg)) == NULL)
	return;

    act(argument, ch, NULL, victim, TO_NOTVICT);
}

/*
 * Prints the message to only the victim
 *
 * Syntax: mob echoat [victim] [string]
 */
void do_mpechoat(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];
    CHAR_DATA *victim;

    argument = one_argument(argument, arg);

    if (arg[0] == '\0' || argument[0] == '\0')
	return;

    if ((victim = get_char_room(ch, arg)) == NULL)
	return;

    act(argument, ch, NULL, victim, TO_VICT);
}

/*
 * Prints the message to the room at large
 *
 * Syntax: mpecho [string]
 */
void do_mpecho(CHAR_DATA * ch, char *argument)
{
    if (argument[0] == '\0')
	return;
    act(argument, ch, NULL, NULL, TO_ROOM);
}

/*
 * Lets the mobile load another mobile.
 *
 * Syntax: mob mload [vnum]
 */
void do_mpmload(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];
    MOB_INDEX_DATA *pMobIndex;
    CHAR_DATA *victim;
    int vnum;

    one_argument(argument, arg);

    if (ch->in_room == NULL || arg[0] == '\0' || !is_number(arg))
	return;

    vnum = atoi(arg);
    if ((pMobIndex = get_mob_index(vnum)) == NULL) {
	sprintf(arg, "Mpmload: bad mob index (%d) from mob %d",
		vnum, IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	bug(arg, 0);
	return;
    }
    victim = create_mobile(pMobIndex);
    char_to_room(victim, ch->in_room);
    return;
}

/*
 * Lets the mobile load an object
 *
 * Syntax: mob oload [vnum] [level] {R}
 */
void do_mpoload(CHAR_DATA * ch, char *argument)
{
    char arg1[MAX_INPUT_LENGTH];
    char arg2[MAX_INPUT_LENGTH];
    char arg3[MAX_INPUT_LENGTH];
    OBJ_INDEX_DATA *pObjIndex;
    OBJ_DATA *obj;
    int level;
    bool fToroom = FALSE, fWear = FALSE;

    argument = one_argument(argument, arg1);
    argument = one_argument(argument, arg2);
    one_argument(argument, arg3);

    if (arg1[0] == '\0' || !is_number(arg1)) {
	bug("Mpoload - Bad syntax from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if (arg2[0] == '\0') {
	level = get_trust(ch);
    } else {
	/*
	 * New feature from Alander.
	 */
	if (!is_number(arg2)) {
	    bug("Mpoload - Bad syntax from vnum %d.",
		IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	    return;
	}
	level = atoi(arg2);
	if (level < 0 || level > get_trust(ch)) {
	    bug("Mpoload - Bad level from vnum %d.",
		IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	    return;
	}
    }

    /*
     * Added 3rd argument
     * omitted - load to mobile's inventory
     * 'R'     - load to room
     * 'W'     - load to mobile and force wear
     */
    if (arg3[0] == 'R' || arg3[0] == 'r')
	fToroom = TRUE;
    else if (arg3[0] == 'W' || arg3[0] == 'w')
	fWear = TRUE;

    if ((pObjIndex = get_obj_index(atoi(arg1))) == NULL) {
	bug("Mpoload - Bad vnum arg from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    obj = create_object(pObjIndex, level);
    if ((fWear || !fToroom) && CAN_WEAR(obj, ITEM_TAKE)) {
	obj_to_char(obj, ch);
	if (fWear)
	    wear_obj(ch, obj, TRUE);
    } else {
	obj_to_room(obj, ch->in_room);
    }

    return;
}

/*
 * Lets the mobile purge all objects and other npcs in the room,
 * or purge a specified object or mob in the room. The mobile cannot
 * purge itself for safety reasons.
 *
 * syntax mob purge {target}
 */
void do_mppurge(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];
    CHAR_DATA *victim;
    OBJ_DATA *obj;

    one_argument(argument, arg);

    if (arg[0] == '\0') {
	/* 'purge' */
	CHAR_DATA *vnext;
	OBJ_DATA *obj_next;

	for (victim = ch->in_room->people; victim != NULL; victim = vnext) {
	    vnext = victim->next_in_room;
	    if (IS_NPC(victim) && victim != ch
		&& !IS_SET(victim->act, ACT_NOPURGE))
		extract_char(victim, TRUE);
	}

	for (obj = ch->in_room->contents; obj != NULL; obj = obj_next) {
	    obj_next = obj->next_content;
	    if (!IS_SET(obj->extra_flags, ITEM_NOPURGE))
		extract_obj(obj);
	}

	return;
    }
    if ((victim = get_char_room(ch, arg)) == NULL) {
	if ((obj = get_obj_here(ch, arg))) {
	    extract_obj(obj);
	} else {
	    bug("Mppurge - Bad argument from vnum %d.",
		IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	}
	return;
    }
    if (!IS_NPC(victim)) {
	bug("Mppurge - Purging a PC from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    extract_char(victim, TRUE);
    return;
}

/*
 * Lets the mobile goto any location it wishes that is not private.
 *
 * Syntax: mob goto [location]
 */
void do_mpgoto(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];
    ROOM_INDEX_DATA *location;

    one_argument(argument, arg);
    if (arg[0] == '\0') {
	bug("Mpgoto - No argument from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if ((location = find_location(ch, arg)) == NULL) {
	bug("Mpgoto - No such location from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if (ch->fighting != NULL)
	stop_fighting(ch, TRUE);

    char_from_room(ch);
    char_to_room(ch, location);

    return;
}

/* 
 * Lets the mobile do a command at another location.
 *
 * Syntax: mob at [location] [commands]
 */
void do_mpat(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];
    ROOM_INDEX_DATA *location;
    ROOM_INDEX_DATA *original;
    CHAR_DATA *wch;
    OBJ_DATA *on;

    argument = one_argument(argument, arg);

    if (arg[0] == '\0' || argument[0] == '\0') {
	bug("Mpat - Bad argument from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if ((location = find_location(ch, arg)) == NULL) {
	bug("Mpat - No such location from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    original = ch->in_room;
    on = ch->on;
    char_from_room(ch);
    char_to_room(ch, location);
    interpret(ch, argument);

    /*
     * See if 'ch' still exists before continuing!
     * Handles 'at XXXX quit' case.
     */
    for (wch = char_list; wch != NULL; wch = wch->next) {
	if (wch == ch) {
	    char_from_room(ch);
	    char_to_room(ch, original);
	    ch->on = on;
	    break;
	}
    }

    return;
}

/*
 * Lets the mobile transfer people.  The 'all' argument transfers
 *  everyone in the current room to the specified location
 *
 * Syntax: mob transfer [target|'all'] [location]
 */
void do_mptransfer(CHAR_DATA * ch, char *argument)
{
    char arg1[MAX_INPUT_LENGTH];
    char arg2[MAX_INPUT_LENGTH];
    char buf[MAX_STRING_LENGTH];
    ROOM_INDEX_DATA *location;
    CHAR_DATA *victim;

    argument = one_argument(argument, arg1);
    argument = one_argument(argument, arg2);

    if (arg1[0] == '\0') {
	bug("Mptransfer - Bad syntax from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if (!str_cmp(arg1, "all")) {
	CHAR_DATA *victim_next;

	for (victim = ch->in_room->people; victim != NULL; victim = victim_next) {
	    victim_next = victim->next_in_room;
	    if (!IS_NPC(victim)) {
		sprintf(buf, "%s %s", victim->name, arg2);
		do_mptransfer(ch, buf);
	    }
	}
	return;
    }
    /*
     * Thanks to Grodyn for the optional location parameter.
     */
    if (arg2[0] == '\0') {
	location = ch->in_room;
    } else {
	if ((location = find_location(ch, arg2)) == NULL) {
	    bug("Mptransfer - No such location from vnum %d.",
		IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	    return;
	}
	if (room_is_private(location))
	    return;
    }

    if ((victim = get_char_world(ch, arg1)) == NULL)
	return;

    if (victim->in_room == NULL)
	return;

    if (victim->fighting != NULL)
	stop_fighting(victim, TRUE);
    char_from_room(victim);
    char_to_room(victim, location);
    do_look(victim, "auto");

    return;
}

/*
 * Lets the mobile transfer all chars in same group as the victim.
 *
 * Syntax: mob gtransfer [victim] [location]
 */
void do_mpgtransfer(CHAR_DATA * ch, char *argument)
{
    char arg1[MAX_INPUT_LENGTH];
    char arg2[MAX_INPUT_LENGTH];
    char buf[MAX_STRING_LENGTH];
    CHAR_DATA *who, *victim, *victim_next;

    argument = one_argument(argument, arg1);
    argument = one_argument(argument, arg2);

    if (arg1[0] == '\0') {
	bug("Mpgtransfer - Bad syntax from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if ((who = get_char_room(ch, arg1)) == NULL)
	return;

    for (victim = ch->in_room->people; victim; victim = victim_next) {
	victim_next = victim->next_in_room;
	if (is_same_group(who, victim)) {
	    sprintf(buf, "%s %s", victim->name, arg2);
	    do_mptransfer(ch, buf);
	}
    }
    return;
}

/*
 * Lets the mobile force someone to do something. Must be mortal level
 * and the all argument only affects those in the room with the mobile.
 *
 * Syntax: mob force [victim] [commands]
 */
void do_mpforce(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];

    argument = one_argument(argument, arg);

    if (arg[0] == '\0' || argument[0] == '\0') {
	bug("Mpforce - Bad syntax from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if (!str_cmp(arg, "all")) {
	CHAR_DATA *vch;
	CHAR_DATA *vch_next;

	for (vch = char_list; vch != NULL; vch = vch_next) {
	    vch_next = vch->next;

	    if (vch->in_room == ch->in_room
		&& get_trust(vch) < get_trust(ch)
		&& can_see(ch, vch)) {
		interpret(vch, argument);
	    }
	}
    } else {
	CHAR_DATA *victim;

	if ((victim = get_char_room(ch, arg)) == NULL)
	    return;

	if (victim == ch)
	    return;

	interpret(victim, argument);
    }

    return;
}

/*
 * Lets the mobile force a group something. Must be mortal level.
 *
 * Syntax: mob gforce [victim] [commands]
 */
void do_mpgforce(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];
    CHAR_DATA *victim, *vch, *vch_next;

    argument = one_argument(argument, arg);

    if (arg[0] == '\0' || argument[0] == '\0') {
	bug("MpGforce - Bad syntax from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if ((victim = get_char_room(ch, arg)) == NULL)
	return;

    if (victim == ch)
	return;

    for (vch = victim->in_room->people; vch != NULL; vch = vch_next) {
	vch_next = vch->next_in_room;

	if (is_same_group(victim, vch)) {
	    interpret(vch, argument);
	}
    }
    return;
}

/*
 * Forces all mobiles of certain vnum to do something (except ch)
 *
 * Syntax: mob vforce [vnum] [commands]
 */
void do_mpvforce(CHAR_DATA * ch, char *argument)
{
    CHAR_DATA *victim, *victim_next;
    char arg[MAX_INPUT_LENGTH];
    int vnum;

    argument = one_argument(argument, arg);

    if (arg[0] == '\0' || argument[0] == '\0') {
	bug("MpVforce - Bad syntax from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if (!is_number(arg)) {
	bug("MpVforce - Non-number argument vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    vnum = atoi(arg);

    for (victim = char_list; victim; victim = victim_next) {
	victim_next = victim->next;
	if (IS_NPC(victim) && victim->pIndexData->vnum == vnum
	    && ch != victim && victim->fighting == NULL)
	    interpret(victim, argument);
    }
    return;
}

/*
 * Lets the mobile cast spells --
 * Beware: this does only crude checking on the target validity
 * and does not account for mana etc., so you should do all the
 * necessary checking in your mob program before issuing this cmd!
 *
 * Syntax: mob cast [spell] {target}
 */

void do_mpcast(CHAR_DATA * ch, char *argument)
{
    CHAR_DATA *vch;
    OBJ_DATA *obj;
    void *victim = NULL;
    char spell[MAX_INPUT_LENGTH], target[MAX_INPUT_LENGTH];
    int sn;

    argument = one_argument(argument, spell);
    one_argument(argument, target);

    if (spell[0] == '\0') {
	bug("MpCast - Bad syntax from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if ((sn = skill_lookup(spell)) < 0) {
	bug("MpCast - No such spell from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    vch = get_char_room(ch, target);
    obj = get_obj_here(ch, target);
    switch (skill_table[sn].target) {
    default:
	return;
    case TAR_IGNORE:
	break;
    case TAR_CHAR_OFFENSIVE:
	if (vch == NULL || vch == ch)
	    return;
	victim = (void *) vch;
	break;
    case TAR_CHAR_DEFENSIVE:
	victim = vch == NULL ? (void *) ch : (void *) vch;
	break;
    case TAR_CHAR_SELF:
	victim = (void *) ch;
	break;
    case TAR_OBJ_CHAR_DEF:
    case TAR_OBJ_CHAR_OFF:
    case TAR_OBJ_INV:
	if (obj == NULL)
	    return;
	victim = (void *) obj;
    }
    (*skill_table[sn].spell_fun) (sn, ch->level, ch, victim,
				  skill_table[sn].target);
    return;
}

/*
 * Lets mob cause unconditional damage to someone. Nasty, use with caution.
 * Also, this is silent, you must show your own damage message...
 *
 * Syntax: mob damage [victim] [min] [max] {kill}
 */
void do_mpdamage(CHAR_DATA * ch, char *argument)
{
    CHAR_DATA *victim = NULL, *victim_next;
    char target[MAX_INPUT_LENGTH], min[MAX_INPUT_LENGTH], max[MAX_INPUT_LENGTH];
    int low, high;
    bool fAll = FALSE, fKill = FALSE;

    argument = one_argument(argument, target);
    argument = one_argument(argument, min);
    argument = one_argument(argument, max);

    if (target[0] == '\0') {
	bug("MpDamage - Bad syntax from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if (!str_cmp(target, "all"))
	fAll = TRUE;
    else if ((victim = get_char_room(ch, target)) == NULL)
	return;

    if (is_number(min))
	low = atoi(min);
    else {
	bug("MpDamage - Bad damage min vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if (is_number(max))
	high = atoi(max);
    else {
	bug("MpDamage - Bad damage max vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    one_argument(argument, target);

    /*
     * If kill parameter is omitted, this command is "safe" and will not
     * kill the victim.
     */

    if (target[0] != '\0')
	fKill = TRUE;
    if (fAll) {
	for (victim = ch->in_room->people; victim; victim = victim_next) {
	    victim_next = victim->next_in_room;
	    if (victim != ch)
		damage(victim, victim,
		       fKill ?
		       number_range(low, high) : UMIN(victim->hit, number_range(low, high)),
		       TYPE_UNDEFINED, DAM_NONE, FALSE);
	}
    } else
	damage(victim, victim,
	       fKill ?
	       number_range(low, high) : UMIN(victim->hit, number_range(low, high)),
	       TYPE_UNDEFINED, DAM_NONE, FALSE);
    return;
}

/*
 * Lets the mobile to remember a target. The target can be referred to
 * with $q and $Q codes in MOBprograms. See also "mob forget".
 *
 * Syntax: mob remember [victim]
 */
void do_mpremember(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];
    one_argument(argument, arg);
    if (arg[0] != '\0')
	ch->mprog_target = get_char_world(ch, arg);
    else
	bug("MpRemember: missing argument from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
}

/*
 * Reverse of "mob remember".
 *
 * Syntax: mob forget
 */
void do_mpforget(CHAR_DATA * ch, char *argument)
{
    ch->mprog_target = NULL;
}

/*
 * Sets a delay for MOBprogram execution. When the delay time expires,
 * the mobile is checked for a MObprogram with DELAY trigger, and if
 * one is found, it is executed. Delay is counted in PULSE_MOBILE
 *
 * Syntax: mob delay [pulses]
 */
void do_mpdelay(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];

    one_argument(argument, arg);
    if (!is_number(arg)) {
	bug("MpDelay: invalid arg from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    ch->mprog_delay = atoi(arg);
}

/*
 * Reverse of "mob delay", deactivates the timer.
 *
 * Syntax: mob cancel
 */
void do_mpcancel(CHAR_DATA * ch, char *argument)
{
    ch->mprog_delay = -1;
}

/*
 * Lets the mobile to call another MOBprogram withing a MOBprogram.
 * This is a crude way to implement subroutines/functions. Beware of
 * nested loops and unwanted triggerings... Stack usage might be a problem.
 * Characters and objects referred to must be in the same room with the
 * mobile.
 *
 * Syntax: mob call [vnum] [victim|'null'] [object1|'null'] [object2|'null']
 *
 */
void do_mpcall(CHAR_DATA * ch, char *argument)
{
    char arg[MAX_INPUT_LENGTH];
    CHAR_DATA *vch;
    OBJ_DATA *obj1, *obj2;
    MPROG_CODE *prg;
    extern void program_flow(sh_int, char *, CHAR_DATA *, CHAR_DATA *, const void *, const void *);

    argument = one_argument(argument, arg);
    if (arg[0] == '\0') {
	bug("MpCall: missing arguments from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if ((prg = get_mprog_index(atoi(arg))) == NULL) {
	bug("MpCall: invalid prog from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    vch = NULL;
    obj1 = obj2 = NULL;
    argument = one_argument(argument, arg);
    if (arg[0] != '\0')
	vch = get_char_room(ch, arg);
    argument = one_argument(argument, arg);
    if (arg[0] != '\0')
	obj1 = get_obj_here(ch, arg);
    argument = one_argument(argument, arg);
    if (arg[0] != '\0')
	obj2 = get_obj_here(ch, arg);
    program_flow(prg->vnum, prg->code, ch, vch, (void *) obj1, (void *) obj2);
}

/*
 * Forces the mobile to flee.
 *
 * Syntax: mob flee
 *
 */
void do_mpflee(CHAR_DATA * ch, char *argument)
{
    ROOM_INDEX_DATA *was_in;
    EXIT_DATA *pexit;
    int door, attempt;

    if (ch->fighting != NULL)
	return;

    if ((was_in = ch->in_room) == NULL)
	return;

    for (attempt = 0; attempt < 6; attempt++) {
	door = number_door();
	if ((pexit = was_in->exit[door]) == 0
	    || pexit->u1.to_room == NULL
	    || IS_SET(pexit->exit_info, EX_CLOSED)
	    || (IS_NPC(ch)
		&& IS_SET(pexit->u1.to_room->room_flags, ROOM_NO_MOB)))
	    continue;

	move_char(ch, door, FALSE);
	if (ch->in_room != was_in)
	    return;
    }
}

/*
 * Lets the mobile to transfer an object. The object must be in the same
 * room with the mobile.
 *
 * Syntax: mob otransfer [item name] [location]
 */
void do_mpotransfer(CHAR_DATA * ch, char *argument)
{
    OBJ_DATA *obj;
    ROOM_INDEX_DATA *location;
    char arg[MAX_INPUT_LENGTH];
    char buf[MAX_INPUT_LENGTH];

    argument = one_argument(argument, arg);
    if (arg[0] == '\0') {
	bug("MpOTransfer - Missing argument from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    one_argument(argument, buf);
    if ((location = find_location(ch, buf)) == NULL) {
	bug("MpOTransfer - No such location from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    }
    if ((obj = get_obj_here(ch, arg)) == NULL)
	return;
    if (obj->carried_by == NULL)
	obj_from_room(obj);
    else {
	if (obj->wear_loc != WEAR_NONE)
	    unequip_char(ch, obj);
	obj_from_char(obj);
    }
    obj_to_room(obj, location);
}

/*
 * Lets the mobile to strip an object or all objects from the victim.
 * Useful for removing e.g. quest objects from a character.
 *
 * Syntax: mob remove [victim] [object vnum|'all']
 */
void do_mpremove(CHAR_DATA * ch, char *argument)
{
    CHAR_DATA *victim;
    OBJ_DATA *obj, *obj_next;
    sh_int vnum = 0;
    bool fAll = FALSE;
    char arg[MAX_INPUT_LENGTH];

    argument = one_argument(argument, arg);
    if ((victim = get_char_room(ch, arg)) == NULL)
	return;

    one_argument(argument, arg);
    if (!str_cmp(arg, "all"))
	fAll = TRUE;
    else if (!is_number(arg)) {
	bug("MpRemove: Invalid object from vnum %d.",
	    IS_NPC(ch) ? ch->pIndexData->vnum : 0);
	return;
    } else
	vnum = atoi(arg);

    for (obj = victim->carrying; obj; obj = obj_next) {
	obj_next = obj->next_content;
	if (fAll || obj->pIndexData->vnum == vnum) {
	    unequip_char(ch, obj);
	    obj_from_char(obj);
	    extract_obj(obj);
	}
    }
}