/*obj_cmds.c: used to be all in mob_cmds.c/h, broken up 4/9/2004 7:41PM JH*/

#include <sys/types.h>
#include <cctype>
#include <cstdio>
#include <cstring>
#include <cstdlib>
#include "merc.h"
#include "obj_cmds.h"

extern ROOM_INDEX_DATA *find_location( CHAR_DATA *, char * );
extern char *prog_type_to_name( int type );
DECLARE_DO_FUN( do_look );

/*
 * OBJcommand table.
 */
//JH do_opat is new 2/6/2004 9:13PM
const	struct	obj_cmd_type	obj_cmd_table	[] =
{
    {	"gecho",       	do_opgecho	},
    {	"zecho",	do_opzecho	},
    {	"echo",		do_opecho	},
    {	"echoaround",	do_opechoaround	},
    {	"echoat",	do_opechoat	},
    {	"mload",	do_opmload	},
    {	"iload",	do_opiload	},
    {	"oload",	do_opoload	},
    {	"purge",	do_oppurge	},
    {	"goto",		do_opgoto	},
    {	"transfer",	do_optransfer	},
    {	"gtransfer",	do_opgtransfer	},
    {	"otransfer",	do_opotransfer	},
    {	"force",	do_opforce	},
    {	"gforce",	do_opgforce	},
    {	"vforce",	do_opvforce	},
    {	"damage",	do_opdamage	},
    {	"remember",	do_opremember	},
    {	"forget",	do_opforget	},
    {	"delay",	do_opdelay	},
    {	"cancel",	do_opcancel	},
    {	"call",		do_opcall	},
    {	"remove",	do_opremove	},
    {	"at",		do_opat},
    {	"attrib",	do_opattrib 	},
    {	"",		0		}
};


/*
 * OBJprog section
 */
void do_obj( OBJ_DATA *obj, char *argument )
{
    /*
     * Security check!
     */
    if ( obj->level < MAX_LEVEL )
        return;
    obj_interpret( obj, argument );
}
/*
 * Obj command interpreter. Implemented separately for security and speed
 * reasons. A trivial hack of interpret()
 */
void obj_interpret( OBJ_DATA *obj, char *argument )
{
    char buf[MAX_STRING_LENGTH], command[MAX_INPUT_LENGTH];
    int cmd;

    //writelogf("obj_interpret: argument %s", argument); 

    argument = one_argument( argument, command );

    //writelogf("obj_interpret: argument %s", argument); 
    /*
     * Look for command in command table.
     */
    for ( cmd = 0; obj_cmd_table[cmd].name[0] != '\0'; cmd++ )
    {
        if ( command[0] == obj_cmd_table[cmd].name[0]
                &&   !str_prefix( command, obj_cmd_table[cmd].name ) )
        {
            (*obj_cmd_table[cmd].obj_fun) ( obj, argument );
            tail_chain( );
            return;
        }
    }
    sprintf( buf, "Obj_interpret: invalid cmd from obj %d: '%s'",
            obj->pIndexData->vnum, command );
    bug( buf, 0 );
}

/*
 * Displays OBJprogram triggers of an object
 *
 * Syntax: opstat [name]
 */
void do_opstat( CHAR_DATA *ch, char *argument )
{
    char        arg[ MAX_STRING_LENGTH  ];
    PROG_LIST  *oprg;
    OBJ_DATA   *obj;
    int i;

    one_argument( argument, arg );

    if ( arg[0] == '\0' )
    {
        send_to_char( "Opstat what?\n\r", ch );
        return;
    }

    if ( ( obj = get_obj_world( ch, arg ) ) == NULL )
    {
        send_to_char( "No such object.\n\r", ch );
        return;
    }

    ch_printf( ch, "Object #%-6d [%s]\n\r",
            obj->pIndexData->vnum, obj->short_descr );

    ch_printf( ch, "Delay   %-6d [%s]\n\r",
            obj->oprog_delay,
            obj->oprog_target == NULL
            ? "No target" : obj->oprog_target->name );


    if ( !obj->pIndexData->oprog_flags )
    {
        send_to_char( "[No programs set]\n\r", ch);
        return;
    }

    for ( i = 0, oprg = obj->pIndexData->oprogs; oprg != NULL; oprg = oprg->next )

    {
        draw_line(ch, "{W-{x-", 0);
        ch_printf(ch, "[%2d] Trigger [%-8s] Program [%4d] Phrase [%s]\n\r     Program comments :%s\n\r",
                ++i,
                prog_type_to_name( oprg->trig_type ),
                oprg->vnum,
                oprg->trig_phrase,
                oprg->comments );
    }

    return;

}

/*
 * Displays the source code of a given OBJprogram
 *
 * Syntax: opdump [vnum]
 */
void do_opdump( CHAR_DATA *ch, char *argument )
{
    char buf[ MAX_INPUT_LENGTH ];
    PROG_CODE *oprg;

    one_argument( argument, buf );
    if ( ( oprg = get_prog_index( atoi(buf), PRG_OPROG ) ) == NULL )
    {
        send_to_char( "No such OBJprogram.\n\r", ch );
        return;
    }
    page_to_char( oprg->code, ch );
}

/*
 * Prints the argument to all active players in the game
 *
 * Syntax: obj gecho [string]
 */
void do_opgecho( OBJ_DATA *obj, char *argument )
{
    DESCRIPTOR_DATA *d;

    if ( argument[0] == '\0' )
    {
        bug( "OpGEcho: missing argument from vnum %d",
                obj->pIndexData->vnum );
        return;
    }

    for ( d = descriptor_list; d; d = d->next )
    {
        if ( d->connected == CON_PLAYING )
        {
            if ( IS_IMMORTAL(d->character) )
                send_to_char( "Obj echo> ", 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: obj zecho [string]
 */
void do_opzecho( OBJ_DATA *obj, char *argument )
{
    DESCRIPTOR_DATA *d;
    //JH 2/5/2004 4:47PM

    OBJ_DATA *host;
    //find_container_or_obj will return either the container obj is in (allow nesting)
    //or return the obj itself
    host = find_container_or_obj(obj);

    if ( argument[0] == '\0' )
    {
        bug( "OpZEcho: missing argument from vnum %d",
                host->pIndexData->vnum );
        return;
    }

    if ( host->in_room == NULL && (host->carried_by == NULL || host->carried_by->in_room == NULL) )
        return;

    for ( d = descriptor_list; d; d = d->next )
    {
        if ( d->connected == CON_PLAYING
                &&   d->character->in_room != NULL
                &&   ( (host->in_room && d->character->in_room->area == host->in_room->area)
                    || (host->carried_by && d->character->in_room->area == host->carried_by->in_room->area) ) )
        {
            if ( IS_IMMORTAL(d->character) )
                send_to_char( "Obj echo> ", d->character );
            send_to_char( argument, d->character );
            send_to_char( "\n\r", d->character );
        }
    }
}

/*
 * Prints the message to everyone in the room other than the mob and victim
 *
 * Syntax: obj echoaround [victim] [string]
 */

void do_opechoaround( OBJ_DATA *obj, char *argument )
{
    char       arg[ MAX_INPUT_LENGTH ];
    CHAR_DATA *victim, *vch;

    argument = one_argument( argument, arg );

    if ( arg[0] == '\0' )
        return;

    OBJ_DATA *host;
    //find_container_or_obj will return either the container obj is in (allow nesting)
    //or return the obj itself
    host = find_container_or_obj(obj);

    if ( ( victim=get_char_room( NULL, host->in_room?host->in_room:host->carried_by->in_room, arg ) ) == NULL )
        return;

    if ( host->in_room && host->in_room->people )
        vch = host->in_room->people;
    else if ( host->carried_by && host->carried_by->in_room )
        vch = host->carried_by->in_room->people;
    else
        vch = NULL;

    for ( ; vch; vch = vch->next_in_room )
    {
        if ( vch == victim )
            continue;
        send_to_char( argument, vch );
    }
}

/*
 * Prints the message to only the victim
 *
 * Syntax: obj echoat [victim] [string]
 */
void do_opechoat( OBJ_DATA *obj, char *argument )
{
    char       arg[ MAX_INPUT_LENGTH ];
    CHAR_DATA *victim;

    argument = one_argument( argument, arg );
    OBJ_DATA *host;
    host = find_container_or_obj(obj);

    if ( arg[0] == '\0' || argument[0] == '\0' )
        return;

    if ( ( victim = get_char_room( NULL, host->in_room?host->in_room:host->carried_by->in_room, arg ) ) == NULL )
        return;

    /*
       writelogf("opechoat: arg: %s, host->short_descr: %s, victim->name: %s",
       arg, host->short_descr, victim->name);
       if (host->carried_by)
       writelogf("host->carried_by->name: %s", host->carried_by->name);
       else
       writelogf("host->in_room->people->name: %s", host->in_room->people->name);
     */
    act( argument, victim, obj, NULL, TO_CHAR );
    //act( argument, host->carried_by?host->carried_by:host->in_room->people, obj, victim, TO_VICT );

}

/*
 * Prints the message to the room at large
 *
 * Syntax: obj echo [string]
 */
void do_opecho( OBJ_DATA *obj, char *argument )
{
    if ( argument[0] == '\0' )
        return;

    OBJ_DATA *host;
    host = find_container_or_obj(obj);

    if ( !host->carried_by && !host->in_room->people )
        return;

    act( argument, host->carried_by?host->carried_by:host->in_room->people, NULL, NULL, TO_ROOM );
    act( argument, host->carried_by?host->carried_by:host->in_room->people, NULL, NULL, TO_CHAR );
}

/*
 * Lets the object load a mobile.
 *
 * Syntax: obj mload [vnum]
 */
void do_opmload( OBJ_DATA *obj, char *argument )
{
    char            arg[ MAX_INPUT_LENGTH ];
    MOB_INDEX_DATA *pMobIndex;
    CHAR_DATA      *victim;
    int vnum;

    one_argument( argument, arg );

    OBJ_DATA *host;
    host = find_container_or_obj(obj);

    if ( (host->in_room == NULL
                && (host->carried_by == NULL || host->carried_by->in_room == NULL))
            || arg[0] == '\0' || !is_number(arg) )
        return;

    vnum = atoi(arg);
    if ( ( pMobIndex = get_mob_index( vnum ) ) == NULL )
    {
        sprintf( arg, "Opmload: bad mob index (%d) from obj %d",
                vnum, obj->pIndexData->vnum );
        bug( arg, 0 );
        return;
    }
    victim = create_mobile( pMobIndex );
    char_to_room( victim, host->in_room?host->in_room:host->carried_by->in_room );
    return;
}

/*
 * Lets the object load another object
 *
 * Syntax: obj oload [vnum] [level]
 */
void do_opoload( OBJ_DATA *obj, char *argument )
{
    char arg1[ MAX_INPUT_LENGTH ];
    char arg2[ MAX_INPUT_LENGTH ];
    OBJ_INDEX_DATA *pObjIndex;
    OBJ_DATA       *nobj;
    int             level;

    argument = one_argument( argument, arg1 );
    argument = one_argument( argument, arg2 );

    if ( arg1[0] == '\0' || !is_number( arg1 ) )
    {
        bug( "Opoload - Bad syntax from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    if ( arg2[0] == '\0' )
    {
        level = obj->level;
    }
    else
    {
        /*
         * New feature from Alander.
         */
        if ( !is_number( arg2 ) )
        {
            bug( "Opoload - Bad syntax from vnum %d.",
                    obj->pIndexData->vnum );
            return;
        }
        level = atoi( arg2 );
        if ( level < 0 || level > obj->level )
        {
            bug( "Opoload - Bad level from vnum %d.",
                    obj->pIndexData->vnum );
            return;
        }
    }

    if ( ( pObjIndex = get_obj_index( atoi( arg1 ) ) ) == NULL )
    {
        bug( "Opoload - Bad vnum arg from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    nobj = create_object( pObjIndex, level );

    OBJ_DATA *host;
    host = find_container_or_obj(obj);
    obj_to_room( nobj, host->in_room?host->in_room:host->carried_by->in_room );

    return;
}

/*
 * Lets the object load an object into a person's inventory.
 *
 * Syntax: obj iload [vnum] [person]
 */
void do_opiload( OBJ_DATA *obj, char *argument )
{
    char arg1[ MAX_INPUT_LENGTH ];
    char arg2[ MAX_INPUT_LENGTH ];
    OBJ_INDEX_DATA *pObjIndex;
    OBJ_DATA       *nobj;
    CHAR_DATA      *victim;
    OBJ_DATA       *host;

    host = find_container_or_obj(obj);

    argument = one_argument( argument, arg1 );
    argument = one_argument( argument, arg2 );

    if ( arg1[0] == '\0' || !is_number( arg1 ) )
    {
        bug( "Opiload - Bad syntax from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    if ( ( pObjIndex = get_obj_index( atoi( arg1 ) ) ) == NULL )
    {
        bug( "Opiload - Bad vnum arg from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    if ( ( victim = get_char_room( NULL, (host->in_room)?host->in_room:host->carried_by->in_room, arg2 ) ) == NULL )
        return;

    nobj = create_object( pObjIndex, pObjIndex->level );
    obj_to_char( nobj, victim );

    return;
}


/*
 * Lets the object purge all other objects and npcs in the room,
 * or purge a specified object or mob in the room. The object cannot
 * purge itself for safety reasons.
 *
 * syntax obj purge {target}
 */
void do_oppurge( OBJ_DATA *obj, char *argument )
{
    char       arg[ MAX_INPUT_LENGTH ];
    CHAR_DATA *victim;
    OBJ_DATA  *vobj;

    one_argument( argument, arg );

    OBJ_DATA *host;
    host = find_container_or_obj(obj);

    if ( arg[0] == '\0' )
    {
        /* 'purge' */
        CHAR_DATA *vnext;
        OBJ_DATA  *obj_next;

        if ( host->in_room && host->in_room->people )
            victim = host->in_room->people;
        else if ( host->carried_by && host->carried_by->in_room )
            victim = host->carried_by->in_room->people;
        else
            victim = NULL;

        for ( ; victim != NULL; victim = vnext )
        {
            vnext = victim->next_in_room;
            if ( IS_NPC( victim )
                    &&   !IS_SET(victim->act, ACT_NOPURGE) )
                extract_char( victim, TRUE );
        }

        if ( host->in_room )
            vobj = host->in_room->contents;
        else
            vobj = host->carried_by->in_room->contents;

        for ( ; vobj != NULL; vobj = obj_next )
        {
            obj_next = vobj->next_content;
            if ( !IS_SET(vobj->extra_flags, ITEM_NOPURGE) && vobj != host )
                extract_obj( vobj );
        }

        return;
    }

    if ( ( victim = get_char_room( NULL, host->in_room?host->in_room:host->carried_by->in_room, arg ) ) == NULL )
    {
        if ( ( vobj = get_obj_here( NULL, host->in_room?host->in_room:host->carried_by->in_room, arg ) ) )
        {
            extract_obj( vobj );
        }
        else if ( host->carried_by && (vobj = get_obj_carry( host->carried_by, arg, NULL )) != NULL)
        {
            extract_obj( vobj );
        }
        else if ( host->carried_by && (vobj = get_obj_wear( host->carried_by, arg, FALSE )) != NULL )
        {
            unequip_char( vobj->carried_by, vobj );
            extract_obj( vobj );
        }
        else
        {
            bug( "Oppurge - Bad argument from vnum %d.",
                    obj->pIndexData->vnum );
        }
        return;
    }

    if ( !IS_NPC( victim ) )
    {
        bug( "Oppurge - Purging a PC from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }
    extract_char( victim, TRUE );
    return;
}


/*
 * Lets the object goto any location it wishes that is not private.
 * JH: An object can be put into another.  If this is the case,
 * We'll need to first remove it from its container and then send it on its way.
 * Syntax: obj goto [location]
 */
void do_opgoto( OBJ_DATA *obj, char *argument )
{
    char arg[ MAX_INPUT_LENGTH ];
    ROOM_INDEX_DATA *location;
    CHAR_DATA *victim;
    OBJ_DATA *dobj;

    OBJ_DATA *host;
    host = find_container(obj);

    one_argument( argument, arg );
    if ( arg[0] == '\0' )
    {
        bug( "Opgoto - No argument from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    if ( is_number(arg) )
        location = get_room_index( atoi( arg ) );
    else if ( (victim = get_char_world( NULL, arg )) != NULL )
        location = victim->in_room;
    else if ( ( dobj = get_obj_world( NULL, arg )) != NULL )
        location = dobj->in_room;
    else
    {
        bug( "Opgoto - No such location from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    if ( obj->in_room != NULL )
        obj_from_room( obj );
    else if ( obj->carried_by != NULL )
        obj_from_char( obj );
    else if (host) //Object's in something.
        obj_from_obj(obj);

    obj_to_room( obj, location );

    return;
}

/*
 * Lets the object transfer people.  The 'all' argument transfers
 *  everyone in the current room to the specified location
 *
 * Syntax: obj transfer [target|'all'] [location]
 */
void do_optransfer( OBJ_DATA *obj, char *argument )
{
    char             arg1[ MAX_INPUT_LENGTH ];
    char             arg2[ MAX_INPUT_LENGTH ];
    char	     buf[MAX_STRING_LENGTH];
    ROOM_INDEX_DATA *location;
    CHAR_DATA       *victim;
    OBJ_DATA	    *dobj;

    argument = one_argument( argument, arg1 );
    argument = one_argument( argument, arg2 );

    if ( arg1[0] == '\0' )
    {
        bug( "Optransfer - Bad syntax from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    OBJ_DATA *host;
    host = find_container_or_obj(obj);

    if ( !str_cmp( arg1, "all" ) )
    {
        CHAR_DATA *victim_next;

        if ( host->in_room && host->in_room->people )
            victim = host->in_room->people;
        else if ( host->carried_by )
            victim = host->carried_by->in_room->people;
        else
            victim = NULL;
        for ( ; victim != NULL; victim = victim_next )
        {
            victim_next = victim->next_in_room;
            if ( !IS_NPC(victim) )
            {
                sprintf( buf, "%s %s", victim->name, arg2 );
                do_optransfer( host, buf );
            }
        }
        return;
    }

    /*
     * Thanks to Grodyn for the optional location parameter.
     */
    if ( arg2[0] == '\0' )
    {
        location = host->in_room?host->in_room:host->carried_by->in_room;
    }
    else
    {
        if ( is_number(arg2))
            location = get_room_index( atoi(arg2) );
        else if ( (victim = get_char_world( NULL, arg2 )) != NULL )
            location = victim->in_room;
        else if ( ( dobj = get_obj_world( NULL, arg2 )) != NULL )
            location = dobj->in_room;
        else
        {
            bug( "Optransfer - No such location from vnum %d.",
                    obj->pIndexData->vnum );
            return;
        }

        if ( room_is_private( location ) )
            return;
    }

    if ( ( victim = get_char_world( NULL, 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 object transfer all chars in same group as the victim.
 *
 * Syntax: obj gtransfer [victim] [location]
 */
void do_opgtransfer( OBJ_DATA *obj, 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( "Opgtransfer - Bad syntax from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    OBJ_DATA *host;
    host = find_container_or_obj(obj);

    if ( (who = get_char_room( NULL, (host->in_room)?host->in_room:host->carried_by->in_room, arg1 )) == NULL )
        return;

    if ( host->in_room && host->in_room->people )
        victim = host->in_room->people;
    else if ( host->carried_by && host->carried_by->in_room)
        victim = host->carried_by->in_room->people;
    else
        victim = NULL;

    for ( ; victim; victim = victim_next )
    {
        victim_next = victim->next_in_room;
        if( is_same_group( who,victim ) )
        {
            sprintf( buf, "%s %s", victim->name, arg2 );
            do_optransfer( host, buf );
        }
    }
    return;
}

/*
 * Lets the object force someone to do something. Must be mortal level
 * and the all argument only affects those in the room with the object.
 *
 * Syntax: obj force [victim] [commands]
 */
void do_opforce( OBJ_DATA *obj, char *argument )
{
    char arg[ MAX_INPUT_LENGTH ];

    argument = one_argument( argument, arg );

    if ( arg[0] == '\0' || argument[0] == '\0' )
    {
        bug( "Opforce - Bad syntax from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    OBJ_DATA *host;
    host = find_container_or_obj(obj);

    if ( !host->in_room && !host->carried_by )
        return;
    if ( host->in_room && !host->in_room->people )
        return;
    if ( host->carried_by && !host->carried_by->in_room )
        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 ( ((host->in_room && vch->in_room == host->in_room)
                        || (host->carried_by && vch->in_room == host->carried_by->in_room))
                    && get_trust( vch ) < obj->level )
            {
                interpret( vch, argument );
            }
        }
    }
    else
    {
        CHAR_DATA *victim;

        if ( ( victim = get_char_room( NULL, (host->in_room)?host->in_room:host->carried_by->in_room, arg ) ) == NULL )
            return;

        interpret( victim, argument );
    }

    return;
}

/*
 * Lets the object force a group something. Must be mortal level.
 *
 * Syntax: obj gforce [victim] [commands]
 */
void do_opgforce( OBJ_DATA *obj, 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( "OpGforce - Bad syntax from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    OBJ_DATA *host;
    host = find_container_or_obj(obj);

    if ( ( victim = get_char_room( NULL, host->in_room?host->in_room:host->carried_by->in_room, arg ) ) == NULL )
        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
 *
 * Syntax: obj vforce [vnum] [commands]
 */
void do_opvforce( OBJ_DATA *obj, 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( "OpVforce - Bad syntax from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    if ( !is_number( arg ) )
    {
        bug( "OpVforce - Non-number argument vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    vnum = atoi( arg );

    for ( victim = char_list; victim; victim = victim_next )
    {
        victim_next = victim->next;
        if ( IS_NPC(victim) && victim->pIndexData->vnum == vnum
                && victim->fighting == NULL )
            interpret( victim, argument );
    }
    return;
}

/*
 * Lets obj cause unconditional damage to someone. Nasty, use with caution.
 * Also, this is silent, you must show your own damage message...
 *
 * Syntax: obj damage [victim] [min] [max] {kill}
 */
void do_opdamage( OBJ_DATA *obj, 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( "OpDamage - Bad syntax from vnum %d.", obj->pIndexData->vnum );
        return;
    }

    OBJ_DATA *host = find_container_or_obj(obj);


    if( !str_cmp( target, "all" ) )
        fAll = TRUE;
    else if( ( victim = get_char_room( NULL, host->in_room?host->in_room:host->carried_by->in_room, target ) ) == NULL )
        return;

    if ( is_number( min ) )
        low = atoi( min );
    else
    {
        bug( "OpDamage - Bad damage min vnum %d.",
                obj->pIndexData->vnum );
        return;
    }
    if ( is_number( max ) )
        high = atoi( max );
    else
    {
        bug( "OpDamage - Bad damage max vnum %d.",
                obj->pIndexData->vnum );
        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 )
    {
        if ( host->in_room && host->in_room->people )
            victim = host->in_room->people;
        else if ( host->carried_by )
            victim = host->carried_by->in_room->people;
        else
            victim = NULL;

        for( ; victim; victim = victim_next )
        {
            victim_next = victim->next_in_room;
            if (host->carried_by)
            {
                if (victim != host->carried_by )
                    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 );
            }
        }
    }
    else
        damage( victim, victim,
                fKill ?
                number_range(low,high) : UMIN(victim->hit,number_range(low,high)),
                TYPE_UNDEFINED, DAM_NONE, FALSE );
    return;
}

/*
 * Lets the object to remember a target. The target can be referred to
 * with $q and $Q codes in OBJprograms. See also "obj forget".
 *
 * Syntax: obj remember [victim]
 */
void do_opremember( OBJ_DATA *obj, char *argument )
{
    char arg[ MAX_INPUT_LENGTH ];
    one_argument( argument, arg );
    if ( arg[0] != '\0' )
        obj->oprog_target = get_char_world( NULL, arg );
    else
        bug( "OpRemember: missing argument from vnum %d.",
                obj->pIndexData->vnum );
}

/*
 * Reverse of "obj remember".
 *
 * Syntax: obj forget
 */
void do_opforget( OBJ_DATA *obj, char *argument )
{
    obj->oprog_target = NULL;
}

/*
 * Sets a delay for OBJprogram execution. When the delay time expires,
 * the object is checked for a OBJprogram with DELAY trigger, and if
 * one is found, it is executed. Delay is counted in PULSE_TICK
 *
 * Syntax: obj delay [pulses]
 */
void do_opdelay( OBJ_DATA *obj, char *argument )
{
    char arg[ MAX_INPUT_LENGTH ];

    one_argument( argument, arg );
    if ( !is_number( arg ) )
    {
        bug( "OpDelay: invalid arg from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }
    obj->oprog_delay = atoi( arg );
}

/*
 * Reverse of "obj delay", deactivates the timer.
 *
 * Syntax: obj cancel
 */
void do_opcancel( OBJ_DATA *obj, char *argument )
{
    obj->oprog_delay = -1;
}
/*
 * Lets the object to call another OBJprogram withing a OBJprogram.
 * 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: obj call [vnum] [victim|'null'] [object1|'null'] [object2|'null']
 *
 */
//JH: I am sweating a little as I begin modifying this function. :) 2/5/2004 5:41PM
void do_opcall( OBJ_DATA *obj, char *argument )
{
    char arg[ MAX_INPUT_LENGTH ];
    CHAR_DATA *vch;
    OBJ_DATA *obj1, *obj2;
    PROG_CODE *prg;
    extern void program_flow( sh_int, char *, CHAR_DATA *, OBJ_DATA *, ROOM_INDEX_DATA *, CHAR_DATA *, const void *, const void *, int );

    argument = one_argument( argument, arg );
    if ( arg[0] == '\0' )
    {
        bug( "OpCall: missing arguments from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }
    if ( ( prg = get_prog_index( atoi(arg), PRG_OPROG ) ) == NULL )
    {
        bug( "OpCall: invalid prog from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }
    vch = NULL;
    obj1 = obj2 = NULL;
    argument = one_argument( argument, arg );

    //JH Allow the host to do work on behalf of the object if it is in a container (unfair!)
    OBJ_DATA *host;
    host = find_container_or_obj(obj);

    if ( arg[0] != '\0' )
        vch = get_char_room( NULL, host->in_room?host->in_room:host->carried_by->in_room, arg );
    argument = one_argument( argument, arg );
    if ( arg[0] != '\0' )
        obj1 = get_obj_here( NULL, host->in_room?host->in_room:host->carried_by->in_room, arg );
    argument = one_argument( argument, arg );
    if ( arg[0] != '\0' )
        obj2 = get_obj_here( NULL, host->in_room?host->in_room:host->carried_by->in_room, arg );
    program_flow( prg->vnum, prg->code, NULL, obj, NULL, vch, (void *)obj1, (void *)obj2, 1 );
}

/*
 * Lets the object to transfer an object. The object must be in the same
 * room with the object.
 *
 * Syntax: obj otransfer [item name] [location]
 */
void do_opotransfer( OBJ_DATA *obj, char *argument )
{
    OBJ_DATA *obj1, *dobj;
    ROOM_INDEX_DATA *location;
    char arg[ MAX_INPUT_LENGTH ];
    char buf[ MAX_INPUT_LENGTH ];
    CHAR_DATA *victim;

    argument = one_argument( argument, arg );
    if ( arg[0] == '\0' )
    {
        bug( "OpOTransfer - Missing argument from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    OBJ_DATA *host;
    host = find_container_or_obj(obj);

    one_argument( argument, buf );
    if ( is_number( buf ) )
        location = get_room_index( atoi(buf) );
    else if ( (victim = get_char_world( NULL, buf )) != NULL )
        location = victim->in_room;
    else if ( ( dobj = get_obj_world( NULL, arg )) != NULL )
        location = dobj->in_room;
    else
    {
        bug( "OpOTransfer - No such location from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }

    if ( (obj1 = get_obj_here( NULL, host->in_room?host->in_room:host->carried_by->in_room, arg )) == NULL )
        return;
    if ( obj1->carried_by == NULL )
        obj_from_room( obj1 );
    else
    {
        if ( obj1->wear_loc != WEAR_NONE )
            unequip_char( obj1->carried_by, obj1 );
        obj_from_char( obj1 );
    }
    obj_to_room( obj1, location );
}

/*
 * Lets the object to strip an object or all objects from the victim.
 * Useful for removing e.g. quest objects from a character.
 *
 * Syntax: obj remove [victim] [object vnum|'all']
 */
void do_opremove( OBJ_DATA *obj, char *argument )
{
    CHAR_DATA *victim;
    OBJ_DATA *obj1, *obj_next;
    sh_int vnum = 0;
    bool fAll = FALSE;
    char arg[ MAX_INPUT_LENGTH ];

    argument = one_argument( argument, arg );

    OBJ_DATA *host;
    host = find_container_or_obj(obj);

    if ( ( victim = get_char_room( NULL, host->in_room?host->in_room:host->carried_by->in_room, arg ) ) == NULL )
        return;

    one_argument( argument, arg );
    if ( !str_cmp( arg, "all" ) )
        fAll = TRUE;
    else if ( !is_number( arg ) )
    {
        bug ( "OpRemove: Invalid object from vnum %d.",
                obj->pIndexData->vnum );
        return;
    }
    else
        vnum = atoi( arg );

    for ( obj1 = victim->carrying; obj1; obj1 = obj_next )
    {
        obj_next = obj->next_content;
        if ( fAll || obj1->pIndexData->vnum == vnum )
        {
            unequip_char( victim, obj1 );
            obj_from_char( obj1 );
            extract_obj( obj1 );
        }
    }
}

/*
 * Lets the object change its stats, can be related to the
 * target's level by adding a +,-,*,/ to the end of the value.
 *
 * Syntax: obj attrib [target] [level] [condition] [v0] [v1] [v2] [v3] [v4]
 */
void do_opattrib( OBJ_DATA *obj, char *argument )
{
    CHAR_DATA *ch;
    char target[MAX_INPUT_LENGTH], arg1[MAX_INPUT_LENGTH], arg2[MAX_INPUT_LENGTH];
    char arg3[MAX_INPUT_LENGTH], arg4[MAX_INPUT_LENGTH], arg5[MAX_INPUT_LENGTH];
    char arg6[MAX_INPUT_LENGTH], arg7[MAX_INPUT_LENGTH];
    char mod, *p;
    int i, level, condition, value0, value1, value2, value3, value4;

    argument = one_argument( argument, target );
    argument = one_argument( argument, arg1 );
    argument = one_argument( argument, arg2 );
    argument = one_argument( argument, arg3 );
    argument = one_argument( argument, arg4 );
    argument = one_argument( argument, arg5 );
    argument = one_argument( argument, arg6 );
    one_argument( argument, arg7 );

    OBJ_DATA *host;
    host = find_container_or_obj(obj);

    if ( !strcmp( target, "worn" ) )
    {
        if ( !host->carried_by )
            return;
        else
            ch = host->carried_by;
    }
    else if ( ( ch = get_char_room( NULL, host->in_room ? host->in_room : host->carried_by->in_room, target ) ) == NULL )
        return;

    if ( !strcmp( arg1, "none" ) )
        level = obj->level;
    else if ( !isdigit( arg1[0] ) )
    {
        p = arg1;
        mod = arg1[0];

        for ( i = 1; i; i++ )
        {
            if ( arg1[i] == '\0' )
            {
                *p = '\0';
                break;
            }

            *p = arg1[i];
            p++;
        }

        if ( !is_number( arg1 ) )
        {
            bug( "OpAttrib: received non-number argument from vnum %d",
                    obj->pIndexData->vnum );
            return;
        }

        switch ( mod )
        {
            case '+':
                level = ch->level + atoi( arg1 );
                break;
            case '-':
                level = ch->level - atoi( arg1 );
                break;
            case '*':
                level = ch->level * atoi( arg1 );
                break;
            case '/':
                level = ch->level / atoi( arg1 );
                break;
            default:
                bug( "OpAttrib: invalid modifier from vnum %d", obj->pIndexData->vnum );
                return;
        }
    }
    else if ( is_number( arg1 ) )
        level = atoi( arg1 );
    else
    {
        bug( "OpAttrib: received non-number argument from vnum %d",
                obj->pIndexData->vnum );
        return;
    }

    if ( !strcmp( arg2, "none" ) )
        condition = obj->condition;
    else if ( !isdigit( arg2[0] ) )
    {
        p = arg2;
        mod = arg2[0];

        for ( i = 1; i; i++ )
        {
            if ( arg2[i] == '\0' )
            {
                *p = '\0';
                break;
            }

            *p = arg2[i];
            p++;
        }

        if ( !is_number( arg2 ) )
        {
            bug( "OpAttrib: received non-number argument from vnum %d",
                    obj->pIndexData->vnum );
            return;
        }

        switch ( mod )
        {
            case '+':
                condition = ch->level + atoi( arg2 );
                break;
            case '-':
                condition = ch->level - atoi( arg2 );
                break;
            case '*':
                condition = ch->level * atoi( arg2 );
                break;
            case '/':
                condition = ch->level / atoi( arg2 );
                break;
            default:
                bug( "OpAttrib: invalid modifier from vnum %d", obj->pIndexData->vnum );
                return;
        }
    }
    else if ( is_number( arg2 ) )
        condition = atoi( arg2 );
    else
    {
        bug( "OpAttrib: received non-number argument from vnum %d",
                obj->pIndexData->vnum );
        return;
    }

    if ( !strcmp( arg3, "none" ) )
        value0 = obj->value[0];
    else if ( !isdigit( arg3[0] ) )
    {
        p = arg3;
        mod = arg3[0];

        for ( i = 1; i; i++ )
        {
            if ( arg3[i] == '\0' )
            {
                *p = '\0';
                break;
            }

            *p = arg3[i];
            p++;
        }

        if ( !is_number( arg3 ) )
        {
            bug( "OpAttrib: received non-number argument from vnum %d",
                    obj->pIndexData->vnum );
            return;
        }

        switch ( mod )
        {
            case '+':
                value0 = ch->level + atoi( arg3 );
                break;
            case '-':
                value0 = ch->level - atoi( arg3 );
                break;
            case '*':
                value0 = ch->level * atoi( arg3 );
                break;
            case '/':
                value0 = ch->level / atoi( arg3 );
                break;
            default:
                bug( "OpAttrib: invalid modifier from vnum %d", obj->pIndexData->vnum );
                return;
        }
    }
    else if ( is_number( arg3 ) )
        value0 = atoi( arg3 );
    else
    {
        bug( "OpAttrib: received non-number argument from vnum %d",
                obj->pIndexData->vnum );
        return;
    }

    if ( !strcmp( arg4, "none" ) )
        value1 = obj->value[1];
    else if ( !isdigit( arg4[0] ) )
    {
        p = arg4;
        mod = arg4[0];

        for ( i = 1; i; i++ )
        {
            if ( arg4[i] == '\0' )
            {
                *p = '\0';
                break;
            }

            *p = arg4[i];
            p++;
        }

        if ( !is_number( arg4 ) )
        {
            bug( "OpAttrib: received non-number argument from vnum %d",
                    obj->pIndexData->vnum );
            return;
        }

        switch ( mod )
        {
            case '+':
                value1 = ch->level + atoi( arg4 );
                break;
            case '-':
                value1 = ch->level - atoi( arg4 );
                break;
            case '*':
                value1 = ch->level * atoi( arg4 );
                break;
            case '/':
                value1 = ch->level / atoi( arg4 );
                break;
            default:
                bug( "OpAttrib: invalid modifier from vnum %d", obj->pIndexData->vnum );
                return;
        }
    }
    else if ( is_number( arg4 ) )
        value1 = atoi( arg4 );
    else
    {
        bug( "OpAttrib: received non-number argument from vnum %d",
                obj->pIndexData->vnum );
        return;
    }

    if ( !strcmp( arg5, "none" ) )
        value2 = obj->value[2];
    else if ( !isdigit( arg5[0] ) )
    {
        p = arg5;
        mod = arg5[0];

        for ( i = 1; i; i++ )
        {
            if ( arg5[i] == '\0' )
            {
                *p = '\0';
                break;
            }

            *p = arg5[i];
            p++;
        }

        if ( !is_number( arg5 ) )
        {
            bug( "OpAttrib: received non-number argument from vnum %d",
                    obj->pIndexData->vnum );
            return;
        }

        switch ( mod )
        {
            case '+':
                value2 = ch->level + atoi( arg5 );
                break;
            case '-':
                value2 = ch->level - atoi( arg5 );
                break;
            case '*':
                value2 = ch->level * atoi( arg5 );
                break;
            case '/':
                value2 = ch->level / atoi( arg5 );
                break;
            default:
                bug( "OpAttrib: invalid modifier from vnum %d", obj->pIndexData->vnum );
                return;
        }
    }
    else if ( is_number( arg5 ) )
        value2 = atoi( arg5 );
    else
    {
        bug( "OpAttrib: received non-number argument from vnum %d",
                obj->pIndexData->vnum );
        return;
    }

    if ( !strcmp( arg6, "none" ) )
        value3 = obj->value[3];
    else if ( !isdigit( arg6[0] ) )
    {
        p = arg6;
        mod = arg6[0];

        for ( i = 1; i; i++ )
        {
            if ( arg6[i] == '\0' )
            {
                *p = '\0';
                break;
            }

            *p = arg6[i];
            p++;
        }

        if ( !is_number( arg6 ) )
        {
            bug( "OpAttrib: received non-number argument from vnum %d",
                    obj->pIndexData->vnum );
            return;
        }

        switch ( mod )
        {
            case '+':
                value3 = ch->level + atoi( arg6 );
                break;
            case '-':
                value3 = ch->level - atoi( arg6 );
                break;
            case '*':
                value3 = ch->level * atoi( arg6 );
                break;
            case '/':
                value3 = ch->level / atoi( arg6 );
                break;
            default:
                bug( "OpAttrib: invalid modifier from vnum %d", obj->pIndexData->vnum );
                return;
        }
    }
    else if ( is_number( arg6 ) )
        value3 = atoi( arg6 );
    else
    {
        bug( "OpAttrib: received non-number argument from vnum %d",
                obj->pIndexData->vnum );
        return;
    }

    if ( !strcmp( arg7, "none" ) )
        value4 = obj->value[4];
    else if ( !isdigit( arg7[0] ) )
    {
        p = arg7;
        mod = arg7[0];

        for ( i = 1; i; i++ )
        {
            if ( arg7[i] == '\0' )
            {
                *p = '\0';
                break;
            }

            *p = arg7[i];
            p++;
        }

        if ( !is_number( arg7 ) )
        {
            bug( "OpAttrib: received non-number argument from vnum %d",
                    obj->pIndexData->vnum );
            return;
        }

        switch ( mod )
        {
            case '+':
                value4 = ch->level + atoi( arg7 );
                break;
            case '-':
                value4 = ch->level - atoi( arg7 );
                break;
            case '*':
                value4 = ch->level * atoi( arg7 );
                break;
            case '/':
                value4 = ch->level / atoi( arg7 );
                break;
            default:
                bug( "OpAttrib: invalid modifier from vnum %d", obj->pIndexData->vnum );
                return;
        }
    }
    else if ( is_number( arg7 ) )
        value4 = atoi( arg7 );
    else
    {
        bug( "OpAttrib: received non-number argument from vnum %d",
                obj->pIndexData->vnum );
        return;
    }

    obj->level = level;
    obj->condition = condition;
    obj->value[0] = value0;
    obj->value[1] = value1;
    obj->value[2] = value2;
    obj->value[3] = value3;
    obj->value[4] = value4;
}


/*
 * Lets an object do a command at another location.
 * JH 2/6/2004 9:14PM
 * Syntax: obj at [location] [commands]
 */
void do_opat( OBJ_DATA *obj, char *argument )
{
    char arg[MIL];
    ROOM_INDEX_DATA *location;
    ROOM_INDEX_DATA *original;
    OBJ_DATA *gobj;
    argument = one_argument( argument, arg );

    //writelogf("do_opat 2931: argument %s", argument);

    if ( arg[0] == '\0' || argument[0] == '\0' )
    {
        bug( "Opat - Bad argument from vnum %d.",  obj->pIndexData->vnum);
        return;
    }

    if ( ( location = find_location( NULL, arg ) ) == NULL )
    {
        bug( "Opat - No such location from vnum %d.", obj->pIndexData->vnum);
        return;
    }

    if (obj->wear_loc != WEAR_NONE)
    {
        bug( "Opat - Object %d is currently worn.", obj->pIndexData->vnum);
        return;
    }

    /*Dump the 'obj' prefix, if applicable. Eg. obj at 1430 obj echo <whatever>*/
    if (!str_prefix("obj", argument))
        argument = one_argument( argument, arg );
    else
        argument = argument;


    if (obj->in_room != NULL)
    {
        /*Check furniture.*/
        if (obj->item_type == ITEM_FURNITURE)
        {
            CHAR_DATA       *gch;
            for (gch = obj->in_room->people; gch != NULL; gch = gch->next_in_room)
            {
                /*Get off!*/
                if (gch->on == obj)
                {
                    gch->position = POS_STANDING;
                    gch->on = NULL;
                }
            }
        }
        original = obj->in_room;
        obj_from_room( obj );
        obj_to_room(obj, location);
        obj_interpret( obj, argument );

        for (gobj = object_list; gobj != NULL; gobj = gobj->next)
        {
            if ( gobj == obj )
            {
                obj_from_room( obj );
                obj_to_room( obj, original );
                return;
            }
        }
        return;
    }

    /*Check container.*/
    if (obj->in_obj != NULL)
    {
        OBJ_DATA *in_obj = obj->in_obj;
        original = (find_container(obj))->in_room;
        //writelogf("Original's vnum %d and room name: %s", original->vnum, original->name);
        obj_from_obj(obj);
        obj_to_room(obj, location);
        obj_interpret( obj, argument );

        for (gobj = object_list; gobj != NULL; gobj = gobj->next)
        {
            if ( gobj == obj )
            {
                obj_from_room( obj );
                if (in_obj != NULL)
                    obj_to_obj(obj, in_obj);
                else
                    obj_to_room(obj, original);
                return;
            }
        }

        return;
    }

    /*Check inventory of player.  Worn is checked earlier (messy if not).*/
    if (obj->carried_by != NULL )
    {
        CHAR_DATA *carrier = obj->carried_by;
        original = obj->carried_by->in_room;
        //writelogf("Carried by's name: %s", obj->carried_by->name);
        obj_from_char(obj);
        obj_to_room(obj, location);
        obj_interpret( obj, argument );

        for (gobj = object_list; gobj != NULL; gobj = gobj->next)
        {
            if ( gobj == obj )
            {
                obj_from_room( obj );
                if (carrier != NULL)
                    obj_to_char(obj, carrier);
                else
                    obj_to_room(obj, original);
                return;
            }
        }
    }
}