/**************************************************************************
* File: scripts.c *
* Usage: contains general functions for using scripts. *
* *
* *
* $Author: egreen $
* $Date: 1996/09/24 03:48:42 $
* $Revision: 3.25 $
**************************************************************************/
#include "conf.h"
#include "sysdep.h"
#include "structs.h"
#include "dg_scripts.h"
#include "utils.h"
#include "comm.h"
#include "interpreter.h"
#include "handler.h"
#include "dg_event.h"
#include "db.h"
#include "screen.h"
#include "constants.h"
#define PULSES_PER_MUD_HOUR (SECS_PER_MUD_HOUR*PASSES_PER_SEC)
/* external vars from db.c */
extern unsigned long pulse;
extern int dg_owner_purged;
extern int top_of_trigt;
extern struct index_data **trig_index;
extern struct trig_data *trigger_list;
/* other external vars */
extern struct room_data *world;
extern struct char_data *character_list;
extern struct obj_data *object_list;
extern const char *item_types[];
extern const char *genders[];
extern const char *pc_class_types[];
extern const char *pc_race_types[];
extern const char *exit_bits[];
extern struct index_data *mob_index;
extern struct index_data *obj_index;
extern struct spell_info_type spell_info[];
extern struct time_info_data time_info;
/* external functions */
sh_int find_target_room(char_data * ch, char *rawroomstr);
void free_varlist(struct trig_var_data *vd);
int obj_room(obj_data *obj);
int is_empty(int zone_nr);
sh_int find_target_room(struct char_data * ch, char *rawroomstr);
trig_data *read_trigger(int nr);
struct obj_data *get_object_in_equip(struct char_data * ch, char *name);
void extract_trigger(struct trig_data *trig);
int eval_lhs_op_rhs(char *expr, char *result, void *go, struct script_data *sc,
trig_data *trig, int type);
char *skill_percent(struct char_data *ch, char *skill);
int find_eq_pos_script(struct char_data *ch, char *arg);
extern void gain_exp(struct char_data *ch, int gain);
extern int find_skill_num(char *name);
int can_edit_zone(struct char_data *ch, zone_rnum zone);
zone_rnum real_zone_by_thing(room_vnum vznum);
/* function protos from this file */
void extract_value(struct script_data *sc, trig_data *trig, char *cmd);
struct cmdlist_element *find_done(struct cmdlist_element *cl);
struct cmdlist_element * \
find_case(struct trig_data *trig, struct cmdlist_element *cl, \
void *go, struct script_data *sc, int type, char *cond);
/* local structures */
struct wait_event_data {
trig_data *trigger;
void *go;
int type;
};
/* Return pointer to first occurrence in string ct in */
/* cs, or NULL if not present. Case insensitive */
char *str_str(char *cs, char *ct)
{
char *s, *t;
if (!cs || !ct)
return NULL;
while (*cs) {
t = ct;
while (*cs && (LOWER(*cs) != LOWER(*t)))
cs++;
s = cs;
while (*t && *cs && (LOWER(*cs) == LOWER(*t))) {
t++;
cs++;
}
if (!*t)
return s;
}
return NULL;
}
int trgvar_in_room(room_vnum vnum) {
room_rnum rnum = real_room(vnum);
int i = 0;
char_data *ch;
if (rnum == NOWHERE) {
script_log("people.vnum: world[rnum] does not exist");
return (-1);
}
for (ch = world[rnum].people; ch !=NULL; ch = ch->next_in_room)
i++;
return i;
}
obj_data *get_obj_in_list(char *name, obj_data *list)
{
obj_data *i;
long id;
if (*name == UID_CHAR){
id = atoi(name + 1);
for (i = list; i; i = i->next_content)
if (id == GET_ID(i))
return i;
} else {
for (i = list; i; i = i->next_content)
if (isname(name, i->name))
return i;
}
return NULL;
}
obj_data *get_object_in_equip(char_data * ch, char *name)
{
int j, n = 0, number;
obj_data *obj;
char tmpname[MAX_INPUT_LENGTH];
char *tmp = tmpname;
long id;
if (*name == UID_CHAR) {
id = atoi(name + 1);
for (j = 0; j < NUM_WEARS; j++)
if ((obj = GET_EQ(ch, j)))
if (id == GET_ID(obj))
return (obj);
} else {
snprintf(tmpname, sizeof(tmpname), "%s", name);
if (!(number = get_number(&tmp)))
return NULL;
for (j = 0; (j < NUM_WEARS) && (n <= number); j++)
if ((obj = GET_EQ(ch, j)))
if (isname(tmp, obj->name))
if (++n == number)
return (obj);
}
return NULL;
}
/* Handles 'held', 'light' and 'wield' positions - Welcor
After idea from Byron Ellacott - bje@apnic.net */
int find_eq_pos_script(struct char_data *ch, char *arg)
{
int i;
struct eq_pos_list {
const char *pos;
int where;
} eq_pos[] = {
{"hold", WEAR_HOLD},
{"held", WEAR_HOLD},
{"light", WEAR_LIGHT},
{"wield", WEAR_WIELD},
{"rfinger", WEAR_FINGER_R},
{"lfinger", WEAR_FINGER_L},
{"neck1", WEAR_NECK_1},
{"neck2", WEAR_NECK_2},
{"body", WEAR_BODY},
{"head", WEAR_HEAD},
{"legs", WEAR_LEGS},
{"feet", WEAR_FEET},
{"hands", WEAR_HANDS},
{"arms", WEAR_ARMS},
{"shield", WEAR_SHIELD},
{"about", WEAR_ABOUT},
{"waist", WEAR_WAIST},
{"rwrist", WEAR_WRIST_R},
{"lwrist", WEAR_WRIST_L},
{"none", -1}
};
for (i = 0;eq_pos[i].where != -1;i++) {
if (!str_cmp(eq_pos[i].pos, arg))
return eq_pos[i].where;
}
return (-1);
}
/************************************************************
* search by number routines
************************************************************/
/* return char with UID n */
struct char_data *find_char(long n)
{
struct char_data *ch;
for (ch = character_list; ch; ch=ch->next)
if (GET_ID(ch)==n)
return (ch);
return NULL;
}
/* return object with UID n */
obj_data *find_obj(long n)
{
obj_data *i;
for (i = object_list; i; i = i->next)
if (n == GET_ID(i))
return i;
return NULL;
}
/* return room with UID n */
room_data *find_room(long n)
{
n -= ROOM_ID_BASE;
if ((n >= 0) && (n <= top_of_world))
return &world[n];
return NULL;
}
/************************************************************
* generic searches based only on name
************************************************************/
/* search the entire world for a char, and return a pointer */
char_data *get_char(char *name)
{
char_data *i;
if (*name == UID_CHAR) {
i = find_char(atoi(name + 1));
if (i && valid_dg_target(i, DG_ALLOW_GODS))
return i;
} else {
for (i = character_list; i; i = i->next)
if (isname(name, i->player.name) &&
valid_dg_target(i, DG_ALLOW_GODS))
return i;
}
return NULL;
}
/*
* Finds a char in the same room as the object with the name 'name'
*/
char_data *get_char_near_obj(obj_data *obj, char *name)
{
char_data *ch;
if (*name == UID_CHAR) {
ch = find_char(atoi(name + 1));
if (ch && valid_dg_target(ch, DG_ALLOW_GODS))
return ch;
} else {
room_rnum num;
if ((num = obj_room(obj)) != NOWHERE)
for (ch = world[num].people; ch; ch = ch->next_in_room)
if (isname(name, ch->player.name) &&
valid_dg_target(ch, DG_ALLOW_GODS))
return ch;
}
return NULL;
}
/*
* returns a pointer to the first character in world by name name,
* or NULL if none found. Starts searching in room room first
*/
char_data *get_char_in_room(room_data *room, char *name)
{
char_data *ch;
if (*name == UID_CHAR) {
ch = find_char(atoi(name + 1));
if (ch && valid_dg_target(ch, DG_ALLOW_GODS))
return ch;
} else {
for (ch = room->people; ch; ch = ch->next_in_room)
if (isname(name, ch->player.name) &&
valid_dg_target(ch, DG_ALLOW_GODS))
return ch;
}
return NULL;
}
/* searches the room with the object for an object with name 'name'*/
obj_data *get_obj_near_obj(obj_data *obj, char *name)
{
obj_data *i = NULL;
char_data *ch;
int rm;
long id;
if (!str_cmp(name, "self") || !str_cmp(name, "me"))
return obj;
/* is it inside ? */
if (obj->contains && (i = get_obj_in_list(name, obj->contains)))
return i;
/* or outside ? */
if (obj->in_obj) {
if (*name == UID_CHAR) {
id = atoi(name + 1);
if (id == GET_ID(obj->in_obj))
return obj->in_obj;
} else if (isname(name, obj->in_obj->name))
return obj->in_obj;
}
/* or worn ?*/
else if (obj->worn_by && (i = get_object_in_equip(obj->worn_by, name)))
return i;
/* or carried ? */
else if (obj->carried_by &&
(i = get_obj_in_list(name, obj->carried_by->carrying)))
return i;
else if ((rm = obj_room(obj)) != NOWHERE) {
/* check the floor */
if ((i = get_obj_in_list(name, world[rm].contents)))
return i;
/* check peoples' inventory */
for (ch = world[rm].people;ch ; ch = ch->next_in_room)
if ((i = get_object_in_equip(ch, name)))
return i;
}
return NULL;
}
/* returns the object in the world with name name, or NULL if not found */
obj_data *get_obj(char *name)
{
obj_data *obj;
long id;
if (*name == UID_CHAR) {
id = atoi(name + 1);
for (obj = object_list; obj; obj = obj->next)
if (id == GET_ID(obj))
return obj;
} else {
for (obj = object_list; obj; obj = obj->next)
if (isname(name, obj->name))
return obj;
}
return NULL;
}
/* finds room by id or vnum. returns NULL if not found */
room_data *get_room(char *name)
{
int nr;
if (*name == UID_CHAR)
return find_room(atoi(name + 1));
else if ((nr = real_room(atoi(name))) == NOWHERE)
return NULL;
else
return &world[nr];
}
/*
* returns a pointer to the first character in world by name name,
* or NULL if none found. Starts searching with the person owing the object
*/
char_data *get_char_by_obj(obj_data *obj, char *name)
{
char_data *ch;
if (*name == UID_CHAR) {
ch = find_char(atoi(name + 1));
if (ch && valid_dg_target(ch, DG_ALLOW_GODS))
return ch;
} else {
if (obj->carried_by &&
isname(name, obj->carried_by->player.name) &&
valid_dg_target(obj->carried_by, DG_ALLOW_GODS))
return obj->carried_by;
if (obj->worn_by &&
isname(name, obj->worn_by->player.name) &&
valid_dg_target(obj->worn_by, DG_ALLOW_GODS))
return obj->worn_by;
for (ch = character_list; ch; ch = ch->next)
if (isname(name, ch->player.name) &&
valid_dg_target(ch, DG_ALLOW_GODS))
return ch;
}
return NULL;
}
/*
* returns a pointer to the first character in world by name name,
* or NULL if none found. Starts searching in room room first
*/
char_data *get_char_by_room(room_data *room, char *name)
{
char_data *ch;
if (*name == UID_CHAR) {
ch = find_char(atoi(name + 1));
if (ch && valid_dg_target(ch, DG_ALLOW_GODS))
return ch;
} else {
for (ch = room->people; ch; ch = ch->next_in_room)
if (isname(name, ch->player.name) &&
valid_dg_target(ch, DG_ALLOW_GODS))
return ch;
for (ch = character_list; ch; ch = ch->next)
if (isname(name, ch->player.name) &&
valid_dg_target(ch, DG_ALLOW_GODS))
return ch;
}
return NULL;
}
/*
* returns the object in the world with name name, or NULL if not found
* search based on obj
*/
obj_data *get_obj_by_obj(obj_data *obj, char *name)
{
obj_data *i = NULL;
int rm;
long id;
if (!str_cmp(name, "self") || !str_cmp(name, "me"))
return obj;
if (obj->contains && (i = get_obj_in_list(name, obj->contains)))
return i;
if (obj->in_obj) {
if (*name == UID_CHAR) {
id = atoi(name + 1);
if (id == GET_ID(obj->in_obj))
return obj->in_obj;
} else if (isname(name, obj->in_obj->name))
return obj->in_obj;
}
else if (obj->worn_by && (i = get_object_in_equip(obj->worn_by, name)))
return i;
else if (obj->carried_by &&
(i = get_obj_in_list(name, obj->carried_by->carrying)))
return i;
else if (((rm = obj_room(obj)) != NOWHERE) &&
(i = get_obj_in_list(name, world[rm].contents)))
return i;
if (*name == UID_CHAR) {
id = atoi(name + 1);
for (i = object_list; i; i = i->next)
if (id == GET_ID(i))
break;
} else {
for (i = object_list; i; i = i->next)
if (isname(name, i->name))
break;
}
return i;
}
/* only searches the room */
obj_data *get_obj_in_room(room_data *room, char *name)
{
obj_data *obj;
long id;
if (*name == UID_CHAR) {
id = atoi(name + 1);
for (obj = room->contents; obj; obj = obj->next_content)
if (id == GET_ID(obj))
return obj;
} else {
for (obj = room->contents; obj; obj = obj->next_content)
if (isname(name, obj->name))
return obj;
}
return NULL;
}
/* returns obj with name - searches room, then world */
obj_data *get_obj_by_room(room_data *room, char *name)
{
obj_data *obj;
long id;
if (*name == UID_CHAR) {
id = atoi(name + 1);
for (obj = room->contents; obj; obj = obj->next_content)
if (id == GET_ID(obj))
return obj;
for (obj = object_list; obj; obj = obj->next)
if (id == GET_ID(obj))
return obj;
} else {
for (obj = room->contents; obj; obj = obj->next_content)
if (isname(name, obj->name))
return obj;
for (obj = object_list; obj; obj = obj->next)
if (isname(name, obj->name))
return obj;
}
return NULL;
}
/* checks every PLUSE_SCRIPT for random triggers */
void script_trigger_check(void)
{
char_data *ch;
obj_data *obj;
struct room_data *room=NULL;
int nr;
struct script_data *sc;
for (ch = character_list; ch; ch = ch->next) {
if (SCRIPT(ch)) {
sc = SCRIPT(ch);
if (IS_SET(SCRIPT_TYPES(sc), WTRIG_RANDOM) &&
(!is_empty(world[IN_ROOM(ch)].zone) ||
IS_SET(SCRIPT_TYPES(sc), WTRIG_GLOBAL)))
random_mtrigger(ch);
}
}
for (obj = object_list; obj; obj = obj->next) {
if (SCRIPT(obj)) {
sc = SCRIPT(obj);
if (IS_SET(SCRIPT_TYPES(sc), OTRIG_RANDOM))
random_otrigger(obj);
}
}
for (nr = 0; nr <= top_of_world; nr++) {
if (SCRIPT(&world[nr])) {
room = &world[nr];
sc = SCRIPT(room);
if (IS_SET(SCRIPT_TYPES(sc), WTRIG_RANDOM) &&
(!is_empty(room->zone) ||
IS_SET(SCRIPT_TYPES(sc), WTRIG_GLOBAL)))
random_wtrigger(room);
}
}
}
EVENTFUNC(trig_wait_event)
{
struct wait_event_data *wait_event_obj = (struct wait_event_data *)event_obj;
trig_data *trig;
void *go;
int type;
trig = wait_event_obj->trigger;
go = wait_event_obj->go;
type = wait_event_obj->type;
free(wait_event_obj);
GET_TRIG_WAIT(trig) = NULL;
script_driver(&go, trig, type, TRIG_RESTART);
/* Do not reenqueue*/
return 0;
}
void do_stat_trigger(struct char_data *ch, trig_data *trig)
{
struct cmdlist_element *cmd_list;
char sb[MAX_STRING_LENGTH], buf[MAX_STRING_LENGTH];
int len = 0;
if (!trig)
{
log("SYSERR: NULL trigger passed to do_stat_trigger.");
return;
}
len += snprintf(sb, sizeof(sb), "Name: '%s%s%s', VNum: [%s%5d%s], RNum: [%5d]\r\n",
CCYEL(ch, C_NRM), GET_TRIG_NAME(trig), CCNRM(ch, C_NRM),
CCGRN(ch, C_NRM), GET_TRIG_VNUM(trig), CCNRM(ch, C_NRM),
GET_TRIG_RNUM(trig));
if (trig->attach_type==OBJ_TRIGGER) {
len += snprintf(sb + len, sizeof(sb)-len, "Trigger Intended Assignment: Objects\r\n");
sprintbit(GET_TRIG_TYPE(trig), otrig_types, buf, sizeof(buf));
} else if (trig->attach_type==WLD_TRIGGER) {
len += snprintf(sb + len, sizeof(sb)-len, "Trigger Intended Assignment: Rooms\r\n");
sprintbit(GET_TRIG_TYPE(trig), wtrig_types, buf, sizeof(buf));
} else {
len += snprintf(sb + len, sizeof(sb)-len, "Trigger Intended Assignment: Mobiles\r\n");
sprintbit(GET_TRIG_TYPE(trig), trig_types, buf, sizeof(buf));
}
len += snprintf(sb + len, sizeof(sb)-len, "Trigger Type: %s, Numeric Arg: %d, Arg list: %s\r\n",
buf, GET_TRIG_NARG(trig),
((GET_TRIG_ARG(trig) && *GET_TRIG_ARG(trig))
? GET_TRIG_ARG(trig) : "None"));
len += snprintf(sb + len, sizeof(sb)-len, "Commands:\r\n");
cmd_list = trig->cmdlist;
while (cmd_list) {
if (cmd_list->cmd)
len += snprintf(sb + len, sizeof(sb)-len, "%s\r\n", cmd_list->cmd);
if (len>MAX_STRING_LENGTH-80) {
len += snprintf(sb + len, sizeof(sb)-len, "*** Overflow - script too long! ***\r\n");
break;
}
cmd_list = cmd_list->next;
}
page_string(ch->desc, sb, 1);
}
/* find the name of what the uid points to */
void find_uid_name(char *uid, char *name, size_t nlen)
{
char_data *ch;
obj_data *obj;
if ((ch = get_char(uid)))
snprintf(name, nlen, "%s", ch->player.name);
else if ((obj = get_obj(uid)))
snprintf(name, nlen, "%s", obj->name);
else
snprintf(name, nlen, "uid = %s, (not found)", uid + 1);
}
/* general function to display stats on script sc */
void script_stat (char_data *ch, struct script_data *sc)
{
struct trig_var_data *tv;
trig_data *t;
char name[MAX_INPUT_LENGTH];
char namebuf[512];
char buf1[MAX_STRING_LENGTH];
send_to_char(ch, "Global Variables: %s\r\n", sc->global_vars ? "" : "None");
send_to_char(ch, "Global context: %ld\r\n", sc->context);
for (tv = sc->global_vars; tv; tv = tv->next) {
snprintf(namebuf, sizeof(namebuf), "%s:%ld", tv->name, tv->context);
if (*(tv->value) == UID_CHAR) {
find_uid_name(tv->value, name, sizeof(name));
send_to_char(ch, " %15s: %s\r\n", tv->context?namebuf:tv->name, name);
} else
send_to_char(ch, " %15s: %s\r\n", tv->context?namebuf:tv->name, tv->value);
}
for (t = TRIGGERS(sc); t; t = t->next) {
send_to_char(ch, "\r\n Trigger: %s%s%s, VNum: [%s%5d%s], RNum: [%5d]\r\n",
CCYEL(ch, C_NRM), GET_TRIG_NAME(t), CCNRM(ch, C_NRM),
CCGRN(ch, C_NRM), GET_TRIG_VNUM(t), CCNRM(ch, C_NRM),
GET_TRIG_RNUM(t));
if (t->attach_type==OBJ_TRIGGER) {
send_to_char(ch, " Trigger Intended Assignment: Objects\r\n");
sprintbit(GET_TRIG_TYPE(t), otrig_types, buf1, sizeof(buf1));
} else if (t->attach_type==WLD_TRIGGER) {
send_to_char(ch, " Trigger Intended Assignment: Rooms\r\n");
sprintbit(GET_TRIG_TYPE(t), wtrig_types, buf1, sizeof(buf1));
} else {
send_to_char(ch, " Trigger Intended Assignment: Mobiles\r\n");
sprintbit(GET_TRIG_TYPE(t), trig_types, buf1, sizeof(buf1));
}
send_to_char(ch, " Trigger Type: %s, Numeric Arg: %d, Arg list: %s\r\n",
buf1, GET_TRIG_NARG(t),
((GET_TRIG_ARG(t) && *GET_TRIG_ARG(t)) ? GET_TRIG_ARG(t) :
"None"));
if (GET_TRIG_WAIT(t)) {
send_to_char(ch, " Wait: %ld, Current line: %s\r\n",
event_time(GET_TRIG_WAIT(t)),
t->curr_state ? t->curr_state->cmd : "End of Script");
send_to_char(ch, " Variables: %s\r\n", GET_TRIG_VARS(t) ? "" : "None");
for (tv = GET_TRIG_VARS(t); tv; tv = tv->next) {
if (*(tv->value) == UID_CHAR) {
find_uid_name(tv->value, name, sizeof(name));
send_to_char(ch, " %15s: %s\r\n", tv->name, name);
} else
send_to_char(ch, " %15s: %s\r\n", tv->name, tv->value);
}
}
}
}
void do_sstat_room(struct char_data * ch)
{
struct room_data *rm = &world[IN_ROOM(ch)];
send_to_char(ch, "Script information:\r\n");
if (!SCRIPT(rm)) {
send_to_char(ch, " None.\r\n");
return;
}
script_stat(ch, SCRIPT(rm));
}
void do_sstat_object(char_data *ch, obj_data *j)
{
send_to_char(ch, "Script information:\r\n");
if (!SCRIPT(j)) {
send_to_char(ch, " None.\r\n");
return;
}
script_stat(ch, SCRIPT(j));
}
void do_sstat_character(char_data *ch, char_data *k)
{
send_to_char(ch, "Script information:\r\n");
if (!SCRIPT(k)) {
send_to_char(ch, " None.\r\n");
return;
}
script_stat(ch, SCRIPT(k));
}
/*
* adds the trigger t to script sc in in location loc. loc = -1 means
* add to the end, loc = 0 means add before all other triggers.
*/
void add_trigger(struct script_data *sc, trig_data *t, int loc)
{
trig_data *i;
int n;
for (n = loc, i = TRIGGERS(sc); i && i->next && (n != 0); n--, i = i->next);
if (!loc) {
t->next = TRIGGERS(sc);
TRIGGERS(sc) = t;
} else if (!i)
TRIGGERS(sc) = t;
else {
t->next = i->next;
i->next = t;
}
SCRIPT_TYPES(sc) |= GET_TRIG_TYPE(t);
t->next_in_world = trigger_list;
trigger_list = t;
}
ACMD(do_attach)
{
char_data *victim;
obj_data *object;
room_data *room;
trig_data *trig;
char targ_name[MAX_INPUT_LENGTH], trig_name[MAX_INPUT_LENGTH];
char loc_name[MAX_INPUT_LENGTH], arg[MAX_INPUT_LENGTH];
int loc, tn, rn, num_arg;
room_rnum rnum;
argument = two_arguments(argument, arg, trig_name);
two_arguments(argument, targ_name, loc_name);
if (!*arg || !*targ_name || !*trig_name) {
send_to_char(ch, "Usage: attach { mob | obj | room } { trigger } { name } [ location ]\r\n");
return;
}
num_arg = atoi(targ_name);
tn = atoi(trig_name);
loc = (*loc_name) ? atoi(loc_name) : -1;
if (is_abbrev(arg, "mobile") || is_abbrev(arg, "mtr")) {
victim = get_char_vis(ch, targ_name, NULL, FIND_CHAR_WORLD);
if (!victim) { /* search room for one with this vnum */
for (victim = world[IN_ROOM(ch)].people;victim;victim=victim->next_in_room)
if (GET_MOB_VNUM(victim) == num_arg)
break;
if (!victim) {
send_to_char(ch, "That mob does not exist.\r\n");
return;
}
}
if (!IS_NPC(victim)) {
send_to_char(ch, "Players can't have scripts.\r\n");
return;
}
#ifndef STOCK_CIRCLE
if (!can_edit_zone(ch, real_zone_by_thing(num_arg))) {
send_to_char(ch, "You can only attach triggers in your own zone\r\n");
return;
}
#endif
/* have a valid mob, now get trigger */
rn = real_trigger(tn);
if ((rn == NOTHING) || !(trig = read_trigger(rn))) {
send_to_char(ch, "That trigger does not exist.\r\n");
return;
}
if (!SCRIPT(victim))
CREATE(SCRIPT(victim), struct script_data, 1);
add_trigger(SCRIPT(victim), trig, loc);
send_to_char(ch, "Trigger %d (%s) attached to %s [%d].\r\n",
tn, GET_TRIG_NAME(trig), GET_SHORT(victim), GET_MOB_VNUM(victim));
}
else if (is_abbrev(arg, "object") || is_abbrev(arg, "otr")) {
object = get_obj_vis(ch, targ_name, NULL);
if (!object) { /* search room for one with this vnum */
for (object = world[IN_ROOM(ch)].contents;object;object=object->next_content)
if (GET_OBJ_VNUM(object) == num_arg)
break;
if (!object) { /* search inventory for one with this vnum */
for (object = ch->carrying;object;object=object->next_content)
if (GET_OBJ_VNUM(object) == num_arg)
break;
if (!object) {
send_to_char(ch, "That object does not exist.\r\n");
return;
}
}
}
#ifndef STOCK_CIRCLE
if (!can_edit_zone(ch, real_zone_by_thing(num_arg))) {
send_to_char(ch, "You can only attach triggers in your own zone\r\n");
return;
}
#endif
/* have a valid obj, now get trigger */
rn = real_trigger(tn);
if ((rn == NOTHING) || !(trig = read_trigger(rn))) {
send_to_char(ch, "That trigger does not exist.\r\n");
return;
}
if (!SCRIPT(object))
CREATE(SCRIPT(object), struct script_data, 1);
add_trigger(SCRIPT(object), trig, loc);
send_to_char(ch, "Trigger %d (%s) attached to %s [%d].\r\n",
tn, GET_TRIG_NAME(trig),
(object->short_description ?
object->short_description : object->name),
GET_OBJ_VNUM(object));
}
else if (is_abbrev(arg, "room") || is_abbrev(arg, "wtr")) {
if (strchr(targ_name, '.'))
rnum = IN_ROOM(ch);
else if (isdigit(*targ_name))
rnum = find_target_room(ch, targ_name);
else
rnum = NOWHERE;
if (rnum == NOWHERE) {
send_to_char(ch, "You need to supply a room number or . for current room.\r\n");
return;
}
#ifndef STOCK_CIRCLE
if (!can_edit_zone(ch, world[rnum].zone)) {
send_to_char(ch, "You can only attach triggers in your own zone\r\n");
return;
}
#endif
/* have a valid room, now get trigger */
rn = real_trigger(tn);
if ((rn == NOTHING) || !(trig = read_trigger(rn))) {
send_to_char(ch, "That trigger does not exist.\r\n");
return;
}
room = &world[rnum];
if (!SCRIPT(room))
CREATE(SCRIPT(room), struct script_data, 1);
add_trigger(SCRIPT(room), trig, loc);
send_to_char(ch, "Trigger %d (%s) attached to room %d.\r\n",
tn, GET_TRIG_NAME(trig), world[rnum].number);
}
else
send_to_char(ch, "Please specify 'mob', 'obj', or 'room'.\r\n");
}
/* FIXME: There's a memory leak somewhere here - This isn't always free()'d - Welcor*/
/* adds a variable with given name and value to trigger */
void add_var(struct trig_var_data **var_list, char *name, char *value, long id)
{
struct trig_var_data *vd;
if (strchr(name, '.')) {
log("add_var() : Attempt to add illegal var: %s", name);
return;
}
for (vd = *var_list; vd && str_cmp(vd->name, name); vd = vd->next);
if (vd && (!vd->context || vd->context==id)) {
free(vd->value);
CREATE(vd->value, char, strlen(value) + 1);
}
else {
CREATE(vd, struct trig_var_data, 1);
CREATE(vd->name, char, strlen(name) + 1);
strcpy(vd->name, name); /* strcpy: ok*/
CREATE(vd->value, char, strlen(value) + 1);
vd->next = *var_list;
vd->context = id;
*var_list = vd;
}
strcpy(vd->value, value); /* strcpy: ok*/
}
/*
* removes the trigger specified by name, and the script of o if
* it removes the last trigger. name can either be a number, or
* a 'silly' name for the trigger, including things like 2.beggar-death.
* returns 0 if did not find the trigger, otherwise 1. If it matters,
* you might need to check to see if all the triggers were removed after
* this function returns, in order to remove the script.
*/
int remove_trigger(struct script_data *sc, char *name)
{
trig_data *i, *j;
int num = 0, string = FALSE, n;
char *cname;
if (!sc)
return 0;
if ((cname = strstr(name,".")) || (!isdigit(*name)) ) {
string = TRUE;
if (cname) {
*cname = '\0';
num = atoi(name);
name = ++cname;
}
} else
num = atoi(name);
for (n = 0, j = NULL, i = TRIGGERS(sc); i; j = i, i = i->next) {
if (string) {
if (isname(name, GET_TRIG_NAME(i)))
if (++n >= num)
break;
}
/* this isn't clean... */
/* a numeric value will match if it's position OR vnum */
/* is found. originally the number was position-only */
else if (++n >= num)
break;
else if (trig_index[i->nr]->vnum == num)
break;
}
if (i) {
if (j) {
j->next = i->next;
extract_trigger(i);
}
/* this was the first trigger */
else {
TRIGGERS(sc) = i->next;
extract_trigger(i);
}
/* update the script type bitvector */
SCRIPT_TYPES(sc) = 0;
for (i = TRIGGERS(sc); i; i = i->next)
SCRIPT_TYPES(sc) |= GET_TRIG_TYPE(i);
return 1;
} else
return 0;
}
ACMD(do_detach)
{
char_data *victim = NULL;
obj_data *object = NULL;
struct room_data *room;
char arg1[MAX_INPUT_LENGTH], arg2[MAX_INPUT_LENGTH], arg3[MAX_INPUT_LENGTH];
char *trigger = 0;
int num_arg;
argument = two_arguments(argument, arg1, arg2);
one_argument(argument, arg3);
if (!*arg1 || !*arg2) {
send_to_char(ch, "Usage: detach [ mob | object | room ] { target } { trigger |"
" 'all' }\r\n");
return;
}
/* vnum of mob/obj, if given */
num_arg = atoi(arg2);
if (!str_cmp(arg1, "room") || !str_cmp(arg1, "wtr")) {
room = &world[IN_ROOM(ch)];
#ifndef STOCK_CIRCLE
if (!can_edit_zone(ch, room->zone)) {
send_to_char(ch, "You can only detach triggers in your own zone\r\n");
return;
}
#endif
if (!SCRIPT(room))
send_to_char(ch, "This room does not have any triggers.\r\n");
else if (!str_cmp(arg2, "all")) {
extract_script(room, WLD_TRIGGER);
send_to_char(ch, "All triggers removed from room.\r\n");
} else if (remove_trigger(SCRIPT(room), arg2)) {
send_to_char(ch, "Trigger removed.\r\n");
if (!TRIGGERS(SCRIPT(room))) {
extract_script(room, WLD_TRIGGER);
}
} else
send_to_char(ch, "That trigger was not found.\r\n");
}
else {
if (is_abbrev(arg1, "mobile") || !str_cmp(arg1, "mtr")) {
victim = get_char_vis(ch, arg2, NULL, FIND_CHAR_WORLD);
if (!victim) { /* search room for one with this vnum */
for (victim = world[IN_ROOM(ch)].people;victim;victim=victim->next_in_room)
if (GET_MOB_VNUM(victim) == num_arg)
break;
if (!victim) {
send_to_char(ch, "No such mobile around.\r\n");
return;
}
}
if (!arg3 || !*arg3)
send_to_char(ch, "You must specify a trigger to remove.\r\n");
else
trigger = arg3;
}
else if (is_abbrev(arg1, "object") || !str_cmp(arg1, "otr")) {
object = get_obj_vis(ch, arg2, NULL);
if (!object) { /* search room for one with this vnum */
for (object = world[IN_ROOM(ch)].contents;object;object=object->next_content)
if (GET_OBJ_VNUM(object) == num_arg)
break;
if (!object) { /* search inventory for one with this vnum */
for (object = ch->carrying;object;object=object->next_content)
if (GET_OBJ_VNUM(object) == num_arg)
break;
if (!object) { /* give up */
send_to_char(ch, "No such object around.\r\n");
return;
}
}
}
if (!arg3 || !*arg3)
send_to_char(ch, "You must specify a trigger to remove.\r\n");
else
trigger = arg3;
}
else {
/* Thanks to Carlos Myers for fixing the line below */
if ((object = get_obj_in_equip_vis(ch, arg1, NULL, ch->equipment)));
else if ((object = get_obj_in_list_vis(ch, arg1, NULL, ch->carrying)));
else if ((victim = get_char_room_vis(ch, arg1, NULL)));
else if ((object = get_obj_in_list_vis(ch, arg1, NULL, world[IN_ROOM(ch)].contents)));
else if ((victim = get_char_vis(ch, arg1, NULL, FIND_CHAR_WORLD)));
else if ((object = get_obj_vis(ch, arg1, NULL)));
else
send_to_char(ch, "Nothing around by that name.\r\n");
trigger = arg2;
}
if (victim) {
if (!IS_NPC(victim))
send_to_char(ch, "Players don't have triggers.\r\n");
else if (!SCRIPT(victim))
send_to_char(ch, "That mob doesn't have any triggers.\r\n");
#ifndef STOCK_CIRCLE
else if (!can_edit_zone(ch, real_zone_by_thing(GET_MOB_VNUM(victim)))) {
send_to_char(ch, "You can only detach triggers in your own zone\r\n");
return;
}
#endif
else if (trigger && !str_cmp(trigger, "all")) {
extract_script(victim, MOB_TRIGGER);
send_to_char(ch, "All triggers removed from %s.\r\n", GET_SHORT(victim));
}
else if (trigger && remove_trigger(SCRIPT(victim), trigger)) {
send_to_char(ch, "Trigger removed.\r\n");
if (!TRIGGERS(SCRIPT(victim))) {
extract_script(victim, MOB_TRIGGER);
}
} else
send_to_char(ch, "That trigger was not found.\r\n");
}
else if (object) {
if (!SCRIPT(object))
send_to_char(ch, "That object doesn't have any triggers.\r\n");
#ifndef STOCK_CIRCLE
else if (!can_edit_zone(ch, real_zone_by_thing(GET_OBJ_VNUM(object)))) {
send_to_char(ch, "You can only detach triggers in your own zone\r\n");
return;
}
#endif
else if (trigger && !str_cmp(trigger, "all")) {
extract_script(object, OBJ_TRIGGER);
send_to_char(ch, "All triggers removed from %s.\r\n",
object->short_description ? object->short_description :
object->name);
}
else if (remove_trigger(SCRIPT(object), trigger)) {
send_to_char(ch, "Trigger removed.\r\n");
if (!TRIGGERS(SCRIPT(object))) {
extract_script(object, OBJ_TRIGGER);
}
} else
send_to_char(ch, "That trigger was not found.\r\n");
}
}
}
/* frees memory associated with var */
void free_var_el(struct trig_var_data *var)
{
free(var->name);
free(var->value);
free(var);
}
/*
* remove var name from var_list
* returns 1 if found, else 0
*/
int remove_var(struct trig_var_data **var_list, char *name)
{
struct trig_var_data *i, *j;
for (j = NULL, i = *var_list; i && str_cmp(name, i->name);
j = i, i = i->next);
if (i) {
if (j) {
j->next = i->next;
free_var_el(i);
} else {
*var_list = i->next;
free_var_el(i);
}
return 1;
}
return 0;
}
/*
* Logs any errors caused by scripts to the system log.
* Will eventually allow on-line view of script errors.
*/
void script_vlog(const char *format, va_list args)
{
char output[MAX_STRING_LENGTH];
struct descriptor_data *i;
snprintf(output, sizeof(output), "SCRIPT ERR: %s", format);
basic_mud_vlog(output, args);
/* the rest is mostly a rip from basic_mud_log() */
strcpy(output, "[ "); /* strcpy: OK */
vsnprintf(output + 2, sizeof(output) - 6, format, args);
strcat(output, " ]\r\n"); /* strcat: OK */
for (i = descriptor_list; i; i = i->next) {
if (STATE(i) != CON_PLAYING || IS_NPC(i->character)) /* switch */
continue;
if (GET_LEVEL(i->character) < LVL_BUILDER)
continue;
if (PLR_FLAGGED(i->character, PLR_WRITING))
continue;
if (NRM > (PRF_FLAGGED(i->character, PRF_LOG1) ? 1 : 0) + (PRF_FLAGGED(i->character, PRF_LOG2) ? 2 : 0))
continue;
send_to_char(i->character, "%s%s%s", CCGRN(i->character, C_NRM), output, CCNRM(i->character, C_NRM));
}
}
void script_log(const char *format, ...)
{
va_list args;
va_start(args, format);
script_vlog(format, args);
va_end(args);
}
int text_processed(char *field, char *subfield, struct trig_var_data *vd,
char *str, size_t slen)
{
char *p, *p2;
char tmpvar[MAX_STRING_LENGTH];
if (!str_cmp(field, "strlen")) { /* strlen */
snprintf(str, slen, "%d", strlen(vd->value));
return TRUE;
} else if (!str_cmp(field, "trim")) { /* trim */
/* trim whitespace from ends */
snprintf(tmpvar, sizeof(tmpvar)-1 , "%s", vd->value); /* -1 to use later*/
p = tmpvar;
p2 = tmpvar + strlen(tmpvar) - 1;
while (*p && isspace(*p)) p++;
while ((p<=p2) && isspace(*p2)) p2--;
if (p>p2) { /* nothing left */
*str = '\0';
return TRUE;
}
*(++p2) = '\0'; /* +1 ok (see above) */
snprintf(str, slen, "%s", p);
return TRUE;
} else if (!str_cmp(field, "contains")) { /* contains */
if (str_str(vd->value, subfield))
snprintf(str, slen, "1");
else
snprintf(str, slen, "0");
return TRUE;
} else if (!str_cmp(field, "car")) { /* car */
char *car = vd->value;
while (*car && !isspace(*car))
*str++ = *car++;
*str = '\0';
return TRUE;
} else if (!str_cmp(field, "cdr")) { /* cdr */
char *cdr = vd->value;
while (*cdr && !isspace(*cdr)) cdr++; /* skip 1st field */
while (*cdr && isspace(*cdr)) cdr++; /* skip to next */
snprintf(str, slen, "%s", cdr);
return TRUE;
} else if (!str_cmp(field, "mudcommand")) {
/* find the mud command returned from this text */
/* NOTE: you may need to replace "cmd_info" with "complete_cmd_info", */
/* depending on what patches you've got applied. */
extern const struct command_info cmd_info[];
/* on older source bases: extern struct command_info *cmd_info; */
int length, cmd;
for (length = strlen(vd->value), cmd = 0;
*cmd_info[cmd].command != '\n'; cmd++)
if (!strncmp(cmd_info[cmd].command, vd->value, length))
break;
if (*cmd_info[cmd].command == '\n') strcpy(str,"");
else snprintf(str, slen, "%s", cmd_info[cmd].command);
return TRUE;
}
return FALSE;
}
/* sets str to be the value of var.field */
void find_replacement(void *go, struct script_data *sc, trig_data *trig,
int type, char *var, char *field, char *subfield, char *str, size_t slen)
{
struct trig_var_data *vd=NULL;
char_data *ch, *c = NULL, *rndm;
obj_data *obj, *o = NULL;
struct room_data *room, *r = NULL;
char *name;
int num, count;
char *send_cmd[] = {"msend ", "osend ", "wsend " };
char *echo_cmd[] = {"mecho ", "oecho ", "wecho " };
char *echoaround_cmd[] = {"mechoaround ", "oechoaround ", "wechoaround "};
char *door[] = {"mdoor ", "odoor ", "wdoor " };
char *force[] = {"mforce ", "oforce ", "wforce " };
char *load[] = {"mload ", "oload ", "wload " };
char *purge[] = {"mpurge ", "opurge ", "wpurge " };
char *teleport[] = {"mteleport ", "oteleport ", "wteleport " };
/* the x kills a 'shadow' warning in gcc. */
char *xdamage[] = {"mdamage ", "odamage ", "wdamage " };
char *zoneecho[] = {"mzoneecho ", "ozoneecho ", "wzoneecho " };
char *asound[] = {"masound ", "oasound ", "wasound " };
char *at[] = {"mat ", "oat ", "wat " };
/* there is no such thing as wtransform, thus the wecho below */
char *transform[] = {"mtransform ", "otransform ", "wecho" };
/* X.global() will have a NULL trig */
if (trig)
for (vd = GET_TRIG_VARS(trig); vd; vd = vd->next)
if (!str_cmp(vd->name, var))
break;
/* some evil waitstates could crash the mud if sent here with sc==NULL*/
if (!vd && sc)
for (vd = sc->global_vars; vd; vd = vd->next)
if (!str_cmp(vd->name, var) &&
(vd->context==0 || vd->context==sc->context))
break;
if (!*field) {
if (vd)
snprintf(str, slen, "%s", vd->value);
else {
if (!str_cmp(var, "self"))
snprintf(str, slen, "self");
else if (!str_cmp(var, "door"))
snprintf(str, slen, "%s", door[type]);
else if (!str_cmp(var, "force"))
snprintf(str, slen, "%s", force[type]);
else if (!str_cmp(var, "load"))
snprintf(str, slen, "%s", load[type]);
else if (!str_cmp(var, "purge"))
snprintf(str, slen, "%s", purge[type]);
else if (!str_cmp(var, "teleport"))
snprintf(str, slen, "%s", teleport[type]);
else if (!str_cmp(var, "damage"))
snprintf(str, slen, "%s", xdamage[type]);
else if (!str_cmp(var, "send"))
snprintf(str, slen, "%s", send_cmd[type]);
else if (!str_cmp(var, "echo"))
snprintf(str, slen, "%s", echo_cmd[type]);
else if (!str_cmp(var, "echoaround"))
snprintf(str, slen, "%s", echoaround_cmd[type]);
else if (!str_cmp(var, "zoneecho"))
snprintf(str, slen, "%s", zoneecho[type]);
else if (!str_cmp(var, "asound"))
snprintf(str, slen, "%s", asound[type]);
else if (!str_cmp(var, "at"))
snprintf(str, slen, "%s", at[type]);
else if (!str_cmp(var, "transform"))
snprintf(str, slen, "%s", transform[type]);
else
*str = '\0';
}
return;
}
else {
if (vd) {
name = vd->value;
switch (type) {
case MOB_TRIGGER:
ch = (char_data *) go;
if ((o = get_object_in_equip(ch, name)));
else if ((o = get_obj_in_list(name, ch->carrying)));
else if ((c = get_char_room(name, NULL, IN_ROOM(ch))));
else if ((o = get_obj_in_list(name,world[IN_ROOM(ch)].contents)));
else if ((c = get_char(name)));
else if ((o = get_obj(name)));
else if ((r = get_room(name))) {}
break;
case OBJ_TRIGGER:
obj = (obj_data *) go;
if ((c = get_char_by_obj(obj, name)));
else if ((o = get_obj_by_obj(obj, name)));
else if ((r = get_room(name))) {}
break;
case WLD_TRIGGER:
room = (struct room_data *) go;
if ((c = get_char_by_room(room, name)));
else if ((o = get_obj_by_room(room, name)));
else if ((r = get_room(name))) {}
break;
}
}
else {
if (!str_cmp(var, "self")) {
switch (type) {
case MOB_TRIGGER:
c = (char_data *) go;
r = NULL;
o = NULL; /* NULL assignments added to avoid self to always be */
break; /* the room. - Welcor */
case OBJ_TRIGGER:
o = (obj_data *) go;
c = NULL;
r = NULL;
break;
case WLD_TRIGGER:
r = (struct room_data *) go;
c = NULL;
o = NULL;
break;
}
}
else if (!str_cmp(var, "people")) {
snprintf(str, slen, "%d",((num = atoi(field)) > 0) ? trgvar_in_room(num) : 0);
return;
}
else if (!str_cmp(var, "time")) {
if (!str_cmp(field, "hour"))
snprintf(str, slen, "%d", time_info.hours);
else if (!str_cmp(field, "day"))
snprintf(str, slen, "%d", time_info.day + 1);
else if (!str_cmp(field, "month"))
snprintf(str, slen, "%d", time_info.month + 1);
else if (!str_cmp(field, "year"))
snprintf(str, slen, "%d", time_info.year);
else *str = '\0';
return;
}
else if (!str_cmp(var, "random")) {
if (!str_cmp(field, "char")) {
rndm = NULL;
count = 0;
if (type == MOB_TRIGGER) {
ch = (char_data *) go;
for (c = world[IN_ROOM(ch)].people; c; c = c->next_in_room)
if ((c != ch) && valid_dg_target(c, DG_ALLOW_GODS) &&
CAN_SEE(ch, c)) {
if (!rand_number(0, count))
rndm = c;
count++;
}
}
else if (type == OBJ_TRIGGER) {
for (c = world[obj_room((obj_data *) go)].people; c;
c = c->next_in_room)
if (valid_dg_target(c, DG_ALLOW_GODS)) {
if (!rand_number(0, count))
rndm = c;
count++;
}
}
else if (type == WLD_TRIGGER) {
for (c = ((struct room_data *) go)->people; c;
c = c->next_in_room)
if (valid_dg_target(c, DG_ALLOW_GODS)) {
if (!rand_number(0, count))
rndm = c;
count++;
}
}
if (rndm)
snprintf(str, slen, "%c%ld", UID_CHAR, GET_ID(rndm));
else
*str = '\0';
}
else
snprintf(str, slen, "%d", ((num = atoi(field)) > 0) ? rand_number(1, num) : 0);
return;
}
}
if (c) {
if (text_processed(field, subfield, vd, str, slen)) return;
else if (!str_cmp(field, "global")) { /* get global of something else */
if (IS_NPC(c) && c->script) {
find_replacement(go, c->script, NULL, MOB_TRIGGER,
subfield, NULL, NULL, str, slen);
}
}
else if (!str_cmp(field, "name"))
if (GET_SHORT(c))
snprintf(str, slen, "%s", GET_SHORT(c));
else
snprintf(str, slen, "%s", GET_NAME(c));
else if (!str_cmp(field, "title")) {
if (subfield && *subfield && valid_dg_target(c, DG_ALLOW_GODS)) {
if (GET_TITLE(c)) free(GET_TITLE(c));
GET_TITLE(c) = strdup(subfield);
}
snprintf(str, slen, "%s", GET_TITLE(c));
}
else if (!str_cmp(field, "id"))
snprintf(str, slen, "%ld", GET_ID(c));
else if (!str_cmp(field, "alias"))
snprintf(str, slen, "%s", GET_NAME(c));
else if (!str_cmp(field, "level"))
snprintf(str, slen, "%d", GET_LEVEL(c));
else if (!str_cmp(field, "hitp"))
snprintf(str, slen, "%d", GET_HIT(c));
else if (!str_cmp(field, "maxhitp"))
snprintf(str, slen, "%d", GET_MAX_HIT(c));
else if (!str_cmp(field, "mana"))
snprintf(str, slen, "%d", GET_MANA(c));
else if (!str_cmp(field, "maxmana"))
snprintf(str, slen, "%d", GET_MAX_MANA(c));
else if (!str_cmp(field, "move"))
snprintf(str, slen, "%d", GET_MOVE(c));
else if (!str_cmp(field, "maxmove"))
snprintf(str, slen, "%d", GET_MAX_MOVE(c));
else if (!str_cmp(field, "align"))
snprintf(str, slen, "%d", GET_ALIGNMENT(c));
else if (!str_cmp(field, "gold")) {
if (subfield && *subfield) {
int addition = atoi(subfield);
GET_GOLD(c) += addition;
}
snprintf(str, slen, "%d", GET_GOLD(c));
}
else if (!str_cmp(field, "exp")) {
if (subfield && *subfield) {
int addition = MIN(atoi(subfield), 1000);
gain_exp(c, addition);
}
snprintf(str, slen, "%d", GET_EXP(c));
}
else if (!str_cmp(field, "sex"))
snprintf(str, slen, "%s", genders[(int)GET_SEX(c)]);
else if (!str_cmp(field, "weight"))
snprintf(str, slen, "%d", GET_WEIGHT(c));
else if (!str_cmp(field, "canbeseen")) {
if ((type == MOB_TRIGGER) && !CAN_SEE(((char_data *)go), c))
snprintf(str, slen, "0");
else
snprintf(str, slen, "1");
}
else if (!str_cmp(field, "affect")) {
if (subfield && *subfield) {
int spell = find_skill_num(subfield);
if (affected_by_spell(c, spell))
snprintf(str, slen, "1");
else
snprintf(str, slen, "0");
} else
snprintf(str, slen, "0");
}
else if (!str_cmp(field, "class"))
sprinttype(GET_CLASS(c), pc_class_types, str, slen);
#ifdef GET_RACE
else if (!str_cmp(field, "race")) {
if IS_NPC(c) {
*str='\0';
} else {
sprinttype(GET_RACE(c), pc_race_types, str, slen);
}
}
#endif
else if (!str_cmp(field, "fighting"))
if (FIGHTING(c))
snprintf(str, slen, "%c%ld", UID_CHAR, GET_ID(FIGHTING(c)));
else
*str = '\0';
else if (!str_cmp(field, "is_killer")) {
if (subfield && *subfield) {
if (!str_cmp("on", subfield))
SET_BIT_AR(PLR_FLAGS(c), PLR_KILLER);
else if (!str_cmp("off", subfield))
REMOVE_BIT_AR(PLR_FLAGS(c), PLR_KILLER);
}
if (PLR_FLAGGED(c, PLR_KILLER))
snprintf(str, slen, "1");
else
snprintf(str, slen, "0");
}
else if (!str_cmp(field, "is_thief")) {
if (subfield && *subfield) {
if (!str_cmp("on", subfield))
SET_BIT_AR(PLR_FLAGS(c), PLR_THIEF);
else if (!str_cmp("off", subfield))
REMOVE_BIT_AR(PLR_FLAGS(c), PLR_THIEF);
}
if (PLR_FLAGGED(c, PLR_THIEF))
snprintf(str, slen, "1");
else
snprintf(str, slen, "0");
}
#ifdef RIDING
else if (!str_cmp(field, "riding"))
if (RIDING(c))
snprintf(str, slen, "%c%ld", UID_CHAR, GET_ID(RIDING(c)));
else *str = '\0';
#endif
#ifdef RIDDEN_BY
else if (!str_cmp(field, "ridden_by"))
if (RIDDEN_BY(c))
snprintf(str, slen, "%c%ld", UID_CHAR, GET_ID(RIDDEN_BY(c)));
else *str = '\0';
#endif
else if (!str_cmp(field, "vnum"))
snprintf(str, slen, "%d", GET_MOB_VNUM(c));
else if (!str_cmp(field, "str"))
snprintf(str, slen, "%d", GET_STR(c));
else if (!str_cmp(field, "stradd"))
if (GET_STR(c)==18)
snprintf(str, slen, "%d", GET_ADD(c));
else snprintf(str, slen, "0");
else if (!str_cmp(field, "int"))
snprintf(str, slen, "%d", GET_INT(c));
else if (!str_cmp(field, "wis"))
snprintf(str, slen, "%d", GET_WIS(c));
else if (!str_cmp(field, "dex"))
snprintf(str, slen, "%d", GET_DEX(c));
else if (!str_cmp(field, "con"))
snprintf(str, slen, "%d", GET_CON(c));
else if (!str_cmp(field, "cha"))
snprintf(str, slen, "%d", GET_CHA(c));
else if (!str_cmp(field, "room"))
/* see note in dg_scripts.h */
#ifdef ACTOR_ROOM_IS_UID
snprintf(str, slen, "%c%ld",UID_CHAR, (long) IN_ROOM(c) + ROOM_ID_BASE);
#else
snprintf(str, slen, "%d", world[IN_ROOM(c)].number);
#endif
else if (!str_cmp(field, "skill"))
snprintf(str, slen, "%s", skill_percent(c, subfield));
else if (!str_cmp(field, "eq")) {
int pos = find_eq_pos_script(c, subfield);
if (pos==-1 && is_number(subfield))
pos = atoi(subfield);
if (!subfield || !*subfield || pos < 0 || pos > NUM_WEARS)
strcpy(str,"");
else {
if (!GET_EQ(c, pos))
strcpy(str,"");
else
snprintf(str, slen, "%c%ld",UID_CHAR, GET_ID(GET_EQ(c, pos)));
}
}
else if (!str_cmp(field, "hisher"))
snprintf(str, slen, "%s", HSHR(c));
else if (!str_cmp(field, "heshe"))
snprintf(str, slen, "%s", HSSH(c));
else if (!str_cmp(field, "himher"))
snprintf(str, slen, "%s", HMHR(c));
else if (!str_cmp(field, "master"))
if (!c->master)
strcpy(str, "");
else
snprintf(str, slen, "%c%ld", UID_CHAR, GET_ID(c->master));
else if (!str_cmp(field, "inventory")) {
if(subfield && *subfield) {
for (obj = c->carrying;obj;obj=obj->next_content) {
if(GET_OBJ_VNUM(obj)==atoi(subfield)) {
snprintf(str, slen, "%c%ld", UID_CHAR, GET_ID(obj)); /* arg given, found */
return;
}
}
if (!obj)
strcpy(str, ""); /* arg given, not found */
} else { /* no arg given */
if (c->carrying) {
snprintf(str, slen, "%c%ld", UID_CHAR, GET_ID(c->carrying));
} else {
strcpy(str, "");
}
}
}
else if (!str_cmp(field, "varexists")) {
struct trig_var_data *remote_vd;
snprintf(str, slen, "0");
if (SCRIPT(c)) {
for (remote_vd = SCRIPT(c)->global_vars; remote_vd; remote_vd = remote_vd->next) {
if (!str_cmp(remote_vd->name, subfield)) break;
}
if (remote_vd) snprintf(str, slen, "1");
}
}
else if (!str_cmp(field, "next_in_room")) {
if (c->next_in_room)
snprintf(str, slen,"%c%ld",UID_CHAR, GET_ID(c->next_in_room));
else strcpy(str,"");
}
else {
if (SCRIPT(c)) {
for (vd = (SCRIPT(c))->global_vars; vd; vd = vd->next)
if (!str_cmp(vd->name, field))
break;
if (vd)
snprintf(str, slen, "%s", vd->value);
else {
*str = '\0';
script_log("Trigger: %s, VNum %d. unknown char field: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), field);
}
} else {
*str = '\0';
script_log("Trigger: %s, VNum %d. unknown char field: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), field);
}
}
}
else if (o) {
if (text_processed(field, subfield, vd, str, slen)) return;
else if (!str_cmp(field, "name"))
snprintf(str, slen, "%s", o->name);
else if (!str_cmp(field, "id"))
snprintf(str, slen, "%ld", GET_ID(o));
else if (!str_cmp(field, "shortdesc"))
snprintf(str, slen, "%s", o->short_description);
else if (!str_cmp(field, "vnum"))
snprintf(str, slen, "%d", GET_OBJ_VNUM(o));
else if (!str_cmp(field, "type"))
sprinttype(GET_OBJ_TYPE(o), item_types, str, slen);
else if (!str_cmp(field, "timer"))
snprintf(str, slen, "%d", GET_OBJ_TIMER(o));
else if (!str_cmp(field, "cost"))
snprintf(str, slen, "%d", GET_OBJ_COST(o));
else if (!str_cmp(field, "cost_per_day"))
snprintf(str, slen, "%d", GET_OBJ_RENT(o));
else if (!str_cmp(field, "weight"))
snprintf(str, slen, "%d", GET_OBJ_WEIGHT(o));
else if (!str_cmp(field, "room"))
if (obj_room(o) != NOWHERE)
snprintf(str, slen,"%c%ld",UID_CHAR, (long)obj_room(o) + ROOM_ID_BASE);
else strcpy(str, "");
else if (!str_cmp(field, "val0"))
snprintf(str, slen, "%d", GET_OBJ_VAL(o, 0));
else if (!str_cmp(field, "val1"))
snprintf(str, slen, "%d", GET_OBJ_VAL(o, 1));
else if (!str_cmp(field, "val2"))
snprintf(str, slen, "%d", GET_OBJ_VAL(o, 2));
else if (!str_cmp(field, "val3"))
snprintf(str, slen, "%d", GET_OBJ_VAL(o, 3));
else if (!str_cmp(field, "carried_by"))
if (o->carried_by)
snprintf(str, slen,"%c%ld",UID_CHAR, GET_ID(o->carried_by));
else strcpy(str,"");
else if (!str_cmp(field, "worn_by"))
if (o->worn_by)
snprintf(str, slen,"%c%ld",UID_CHAR, GET_ID(o->worn_by));
else strcpy(str,"");
else if (!str_cmp(field, "next_in_list"))
if (o->next_content)
snprintf(str, slen,"%c%ld",UID_CHAR, GET_ID(o->next_content));
else strcpy(str,"");
else {
if (SCRIPT(o)) { /* check for global var */
for (vd = (SCRIPT(o))->global_vars; vd; vd = vd->next)
if (!str_cmp(vd->name, field))
break;
if (vd)
snprintf(str, slen, "%s", vd->value);
else {
*str = '\0';
script_log("Trigger: %s, VNum %d, type: %d. unknown object field: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), type, field);
}
} else {
*str = '\0';
script_log("Trigger: %s, VNum %d, type: %d. unknown object field: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), type, field);
}
}
}
else if (r) {
if (text_processed(field, subfield, vd, str, slen)) return;
else if (!str_cmp(field, "name"))
snprintf(str, slen, "%s", r->name);
else if (!str_cmp(field, "north")) {
if (R_EXIT(r, NORTH)) {
if (subfield && *subfield) {
if (!str_cmp(subfield, "vnum"))
snprintf(str, slen, "%d", GET_ROOM_VNUM(R_EXIT(r, NORTH)->to_room));
else if (!str_cmp(subfield, "key"))
snprintf(str, slen, "%d", R_EXIT(r, NORTH)->key);
else if (!str_cmp(subfield, "bits"))
sprintbit(R_EXIT(r, NORTH)->exit_info ,exit_bits, str, slen);
} else /* no subfield - default to bits */
sprintbit(R_EXIT(r, NORTH)->exit_info ,exit_bits, str, slen);
} else
*str = '\0';
}
else if (!str_cmp(field, "east")) {
if (R_EXIT(r, EAST)) {
if (subfield && *subfield) {
if (!str_cmp(subfield, "vnum"))
snprintf(str, slen, "%d", GET_ROOM_VNUM(R_EXIT(r, EAST)->to_room));
else if (!str_cmp(subfield, "key"))
snprintf(str, slen, "%d", R_EXIT(r, EAST)->key);
else if (!str_cmp(subfield, "bits"))
sprintbit(R_EXIT(r, EAST)->exit_info ,exit_bits, str, slen);
} else /* no subfield - default to bits */
sprintbit(R_EXIT(r, EAST)->exit_info ,exit_bits, str, slen);
} else
*str = '\0';
}
else if (!str_cmp(field, "south")) {
if (R_EXIT(r, SOUTH)) {
if (subfield && *subfield) {
if (!str_cmp(subfield, "vnum"))
snprintf(str, slen, "%d", GET_ROOM_VNUM(R_EXIT(r, SOUTH)->to_room));
else if (!str_cmp(subfield, "key"))
snprintf(str, slen, "%d", R_EXIT(r, SOUTH)->key);
else if (!str_cmp(subfield, "bits"))
sprintbit(R_EXIT(r, SOUTH)->exit_info ,exit_bits, str, slen);
} else /* no subfield - default to bits */
sprintbit(R_EXIT(r, SOUTH)->exit_info ,exit_bits, str, slen);
} else
*str = '\0';
}
else if (!str_cmp(field, "west")) {
if (R_EXIT(r, WEST)) {
if (subfield && *subfield) {
if (!str_cmp(subfield, "vnum"))
snprintf(str, slen, "%d", GET_ROOM_VNUM(R_EXIT(r, WEST)->to_room));
else if (!str_cmp(subfield, "key"))
snprintf(str, slen, "%d", R_EXIT(r, WEST)->key);
else if (!str_cmp(subfield, "bits"))
sprintbit(R_EXIT(r, WEST)->exit_info ,exit_bits, str, slen);
} else /* no subfield - default to bits */
sprintbit(R_EXIT(r, WEST)->exit_info ,exit_bits, str, slen);
} else
*str = '\0';
}
else if (!str_cmp(field, "up")) {
if (R_EXIT(r, UP)) {
if (subfield && *subfield) {
if (!str_cmp(subfield, "vnum"))
snprintf(str, slen, "%d", GET_ROOM_VNUM(R_EXIT(r, UP)->to_room));
else if (!str_cmp(subfield, "key"))
snprintf(str, slen, "%d", R_EXIT(r, UP)->key);
else if (!str_cmp(subfield, "bits"))
sprintbit(R_EXIT(r, UP)->exit_info ,exit_bits, str, slen);
} else /* no subfield - default to bits */
sprintbit(R_EXIT(r, UP)->exit_info ,exit_bits, str, slen);
} else
*str = '\0';
}
else if (!str_cmp(field, "down")) {
if (R_EXIT(r, DOWN)) {
if (subfield && *subfield) {
if (!str_cmp(subfield, "vnum"))
snprintf(str, slen, "%d", GET_ROOM_VNUM(R_EXIT(r, DOWN)->to_room));
else if (!str_cmp(subfield, "key"))
snprintf(str, slen, "%d", R_EXIT(r, DOWN)->key);
else if (!str_cmp(subfield, "bits"))
sprintbit(R_EXIT(r, DOWN)->exit_info ,exit_bits, str, slen);
} else /* no subfield - default to bits */
sprintbit(R_EXIT(r, DOWN)->exit_info ,exit_bits, str, slen);
} else
*str = '\0';
}
else if ((!str_cmp(field, "northwest")) || (!str_cmp(field, "nw"))) {
if (r->dir_option[NORTHWEST])
sprintbit(r->dir_option[NORTHWEST]->exit_info ,exit_bits, str, sizeof(str));
else
*str = '\0';
}
else if ((!str_cmp(field, "northeast")) || (!str_cmp(field, "ne"))) {
if (r->dir_option[NORTHEAST])
sprintbit(r->dir_option[NORTHEAST]->exit_info ,exit_bits, str, sizeof(str));
else
*str = '\0';
}
else if ((!str_cmp(field, "southeast")) || (!str_cmp(field, "se"))) {
if (r->dir_option[SOUTHEAST])
sprintbit(r->dir_option[SOUTHEAST]->exit_info ,exit_bits, str, sizeof(str));
else
*str = '\0';
}
else if ((!str_cmp(field, "southwest")) || (!str_cmp(field, "sw"))) {
if (r->dir_option[SOUTHWEST])
sprintbit(r->dir_option[SOUTHWEST]->exit_info ,exit_bits, str, sizeof(str));
else
*str = '\0';
}
else if (!str_cmp(field, "in")) {
if (r->dir_option[INDIR])
sprintbit(r->dir_option[INDIR]->exit_info ,exit_bits, str, sizeof(str));
else
*str = '\0';
}
else if (!str_cmp(field, "out")) {
if (r->dir_option[OUTDIR])
sprintbit(r->dir_option[OUTDIR]->exit_info ,exit_bits, str, sizeof(str));
else
*str = '\0';
}
else if (!str_cmp(field, "vnum"))
snprintf(str, slen,"%d",r->number);
else if (!str_cmp(field, "people")) {
if (r->people)
snprintf(str, slen,"%c%ld",UID_CHAR,GET_ID(r->people));
else
*str = '\0';
}
else if (!str_cmp(field, "id")) {
room_rnum room_id = real_room(r->number);
if (room_id != NOWHERE)
snprintf(str, slen, "%ld", (long) room_id + ROOM_ID_BASE);
else
*str = '\0';
}
else if (!str_cmp(field, "weather")) {
const char *sky_look[] = {
"sunny",
"cloudy",
"rainy",
"lightning"
};
if (!IS_SET_AR(r->room_flags, ROOM_INDOORS))
snprintf(str, slen, "%s", sky_look[weather_info.sky]);
else
*str = '\0';
} else {
if (SCRIPT(r)) { /* check for global var */
for (vd = (SCRIPT(r))->global_vars; vd; vd = vd->next)
if (!str_cmp(vd->name, field))
break;
if (vd)
snprintf(str, slen, "%s", vd->value);
else {
*str = '\0';
script_log("Trigger: %s, VNum %d, type: %d. unknown room field: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), type, field);
}
} else {
*str = '\0';
script_log("Trigger: %s, VNum %d, type: %d. unknown room field: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), type, field);
}
}
}
}
}
/* substitutes any variables into line and returns it as buf */
void var_subst(void *go, struct script_data *sc, trig_data *trig,
int type, char *line, char *buf)
{
char tmp[MAX_INPUT_LENGTH], repl_str[MAX_INPUT_LENGTH], *var, *field, *p;
char *subfield_p, subfield[MAX_INPUT_LENGTH];
int left, len;
int paren_count = 0;
/* skip out if no %'s */
if (!strchr(line, '%')) {
strcpy(buf, line);
return;
}
p = strcpy(tmp, line);
subfield_p = subfield;
left = MAX_INPUT_LENGTH - 1;
while (*p && (left > 0)) {
/* copy until we find the first % */
while (*p && (*p != '%') && (left > 0)) {
*(buf++) = *(p++);
left--;
}
*buf = '\0';
/* double % */
if (*p && (*(++p) == '%') && (left > 0)) {
*(buf++) = *(p++);
*buf = '\0';
left--;
continue;
}
/* so it wasn't double %'s */
else if (*p && (left > 0)) {
/* search until end of var or beginning of field */
for (var = p; *p && (*p != '%') && (*p != '.'); p++);
field = p;
if (*p == '.') {
*(p++) = '\0';
for (field = p; *p && ((*p != '%')||(paren_count > 0)); p++) {
if (*p=='(') {
*p = '\0';
paren_count++;
} else if (*p==')') {
*p = '\0';
paren_count--;
} else if (paren_count > 0)
*subfield_p++ = *p;
}
}
*(p++) = '\0';
*subfield_p = '\0';
find_replacement(go, sc, trig, type, var, field, subfield, repl_str, sizeof(repl_str));
strncat(buf, repl_str, left);
len = strlen(repl_str);
buf += len;
left -= len;
}
}
}
/* returns 1 if string is all digits, else 0 */
int is_num(char *num)
{
while (*num && (isdigit(*num) || *num=='-'))
num++;
if (!*num || isspace(*num))
return 1;
else
return 0;
}
/* evaluates 'lhs op rhs', and copies to result */
void eval_op(char *op, char *lhs, char *rhs, char *result, void *go,
struct script_data *sc, trig_data *trig)
{
char *p;
int n;
/* strip off extra spaces at begin and end */
while (*lhs && isspace(*lhs))
lhs++;
while (*rhs && isspace(*rhs))
rhs++;
for (p = lhs; *p; p++);
for (--p; isspace(*p) && (p > lhs); *p-- = '\0');
for (p = rhs; *p; p++);
for (--p; isspace(*p) && (p > rhs); *p-- = '\0');
/* find the op, and figure out the value */
if (!strcmp("||", op)) {
if ((!*lhs || (*lhs == '0')) && (!*rhs || (*rhs == '0')))
strcpy(result, "0");
else
strcpy(result, "1");
}
else if (!strcmp("&&", op)) {
if (!*lhs || (*lhs == '0') || !*rhs || (*rhs == '0'))
strcpy (result, "0");
else
strcpy (result, "1");
}
else if (!strcmp("==", op)) {
if (is_num(lhs) && is_num(rhs))
sprintf(result, "%d", atoi(lhs) == atoi(rhs));
else
sprintf(result, "%d", !str_cmp(lhs, rhs));
}
else if (!strcmp("!=", op)) {
if (is_num(lhs) && is_num(rhs))
sprintf(result, "%d", atoi(lhs) != atoi(rhs));
else
sprintf(result, "%d", str_cmp(lhs, rhs));
}
else if (!strcmp("<=", op)) {
if (is_num(lhs) && is_num(rhs))
sprintf(result, "%d", atoi(lhs) <= atoi(rhs));
else
sprintf(result, "%d", str_cmp(lhs, rhs) <= 0);
}
else if (!strcmp(">=", op)) {
if (is_num(lhs) && is_num(rhs))
sprintf(result, "%d", atoi(lhs) >= atoi(rhs));
else
sprintf(result, "%d", str_cmp(lhs, rhs) <= 0);
}
else if (!strcmp("<", op)) {
if (is_num(lhs) && is_num(rhs))
sprintf(result, "%d", atoi(lhs) < atoi(rhs));
else
sprintf(result, "%d", str_cmp(lhs, rhs) < 0);
}
else if (!strcmp(">", op)) {
if (is_num(lhs) && is_num(rhs))
sprintf(result, "%d", atoi(lhs) > atoi(rhs));
else
sprintf(result, "%d", str_cmp(lhs, rhs) > 0);
}
else if (!strcmp("/=", op))
sprintf(result, "%c", str_str(lhs, rhs) ? '1' : '0');
else if (!strcmp("*", op))
sprintf(result, "%d", atoi(lhs) * atoi(rhs));
else if (!strcmp("/", op))
sprintf(result, "%d", (n = atoi(rhs)) ? (atoi(lhs) / n) : 0);
else if (!strcmp("+", op))
sprintf(result, "%d", atoi(lhs) + atoi(rhs));
else if (!strcmp("-", op))
sprintf(result, "%d", atoi(lhs) - atoi(rhs));
else if (!strcmp("!", op)) {
if (is_num(rhs))
sprintf(result, "%d", !atoi(rhs));
else
sprintf(result, "%d", !*rhs);
}
}
/*
* p points to the first quote, returns the matching
* end quote, or the last non-null char in p.
*/
char *matching_quote(char *p)
{
for (p++; *p && (*p != '"'); p++) {
if (*p == '\\')
p++;
}
if (!*p)
p--;
return p;
}
/*
* p points to the first paren. returns a pointer to the
* matching closing paren, or the last non-null char in p.
*/
char *matching_paren(char *p)
{
int i;
for (p++, i = 1; *p && i; p++) {
if (*p == '(')
i++;
else if (*p == ')')
i--;
else if (*p == '"')
p = matching_quote(p);
}
return --p;
}
/* evaluates line, and returns answer in result */
void eval_expr(char *line, char *result, void *go, struct script_data *sc,
trig_data *trig, int type)
{
char expr[MAX_INPUT_LENGTH], *p;
while (*line && isspace(*line))
line++;
if (eval_lhs_op_rhs(line, result, go, sc, trig, type));
else if (*line == '(') {
p = strcpy(expr, line);
p = matching_paren(expr);
*p = '\0';
eval_expr(expr + 1, result, go, sc, trig, type);
}
else
var_subst(go, sc, trig, type, line, result);
}
/*
* evaluates expr if it is in the form lhs op rhs, and copies
* answer in result. returns 1 if expr is evaluated, else 0
*/
int eval_lhs_op_rhs(char *expr, char *result, void *go, struct script_data *sc,
trig_data *trig, int type)
{
char *p, *tokens[MAX_INPUT_LENGTH];
char line[MAX_INPUT_LENGTH], lhr[MAX_INPUT_LENGTH], rhr[MAX_INPUT_LENGTH];
int i, j;
/*
* valid operands, in order of priority
* each must also be defined in eval_op()
*/
static char *ops[] = {
"||",
"&&",
"==",
"!=",
"<=",
">=",
"<",
">",
"/=",
"-",
"+",
"/",
"*",
"!",
"\n"
};
p = strcpy(line, expr);
/*
* initialize tokens, an array of pointers to locations
* in line where the ops could possibly occur.
*/
for (j = 0; *p; j++) {
tokens[j] = p;
if (*p == '(')
p = matching_paren(p) + 1;
else if (*p == '"')
p = matching_quote(p) + 1;
else if (isalnum(*p))
for (p++; *p && (isalnum(*p) || isspace(*p)); p++);
else
p++;
}
tokens[j] = NULL;
for (i = 0; *ops[i] != '\n'; i++)
for (j = 0; tokens[j]; j++)
if (!strn_cmp(ops[i], tokens[j], strlen(ops[i]))) {
*tokens[j] = '\0';
p = tokens[j] + strlen(ops[i]);
eval_expr(line, lhr, go, sc, trig, type);
eval_expr(p, rhr, go, sc, trig, type);
eval_op(ops[i], lhr, rhr, result, go, sc, trig);
return 1;
}
return 0;
}
/* returns 1 if cond is true, else 0 */
int process_if(char *cond, void *go, struct script_data *sc,
trig_data *trig, int type)
{
char result[MAX_INPUT_LENGTH], *p;
eval_expr(cond, result, go, sc, trig, type);
p = result;
skip_spaces(&p);
if (!*p || *p == '0')
return 0;
else
return 1;
}
/*
* scans for end of if-block.
* returns the line containg 'end', or the last
* line of the trigger if not found.
*/
struct cmdlist_element *find_end(struct cmdlist_element *cl)
{
struct cmdlist_element *c;
char *p;
if (!(cl->next))
return cl;
for (c = cl->next; c->next; c = c->next) {
for (p = c->cmd; *p && isspace(*p); p++);
if (!strn_cmp("if ", p, 3))
c = find_end(c);
else if (!strn_cmp("end", p, 3))
return c;
}
return c;
}
/*
* searches for valid elseif, else, or end to continue execution at.
* returns line of elseif, else, or end if found, or last line of trigger.
*/
struct cmdlist_element *find_else_end(trig_data *trig,
struct cmdlist_element *cl, void *go,
struct script_data *sc, int type)
{
struct cmdlist_element *c;
char *p;
if (!(cl->next))
return cl;
for (c = cl->next; c->next; c = c->next) {
for (p = c->cmd; *p && isspace(*p); p++); /* skip spaces */
if (!strn_cmp("if ", p, 3))
c = find_end(c);
else if (!strn_cmp("elseif ", p, 7)) {
if (process_if(p + 7, go, sc, trig, type)) {
GET_TRIG_DEPTH(trig)++;
return c;
}
}
else if (!strn_cmp("else", p, 4)) {
GET_TRIG_DEPTH(trig)++;
return c;
}
else if (!strn_cmp("end", p, 3))
return c;
}
return c;
}
/* processes any 'wait' commands in a trigger */
void process_wait(void *go, trig_data *trig, int type, char *cmd,
struct cmdlist_element *cl)
{
char buf[MAX_INPUT_LENGTH], *arg;
struct wait_event_data *wait_event_obj;
long when, hr, min, ntime;
char c;
arg = any_one_arg(cmd, buf);
skip_spaces(&arg);
if (!*arg) {
script_log("Trigger: %s, VNum %d. wait w/o an arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cl->cmd);
return;
}
if (!strn_cmp(arg, "until ", 6)) {
/* valid forms of time are 14:30 and 1430 */
if (sscanf(arg, "until %ld:%ld", &hr, &min) == 2)
min += (hr * 60);
else
min = (hr % 100) + ((hr / 100) * 60);
/* calculate the pulse of the day of "until" time */
ntime = (min * SECS_PER_MUD_HOUR * PASSES_PER_SEC) / 60;
/* calculate pulse of day of current time */
when = (pulse % (SECS_PER_MUD_HOUR * PASSES_PER_SEC)) +
(time_info.hours * SECS_PER_MUD_HOUR * PASSES_PER_SEC);
if (when >= ntime) /* adjust for next day */
when = (SECS_PER_MUD_DAY * PASSES_PER_SEC) - when + ntime;
else
when = ntime - when;
}
else {
if (sscanf(arg, "%ld %c", &when, &c) == 2) {
if (c == 't')
when *= PULSES_PER_MUD_HOUR;
else if (c == 's')
when *= PASSES_PER_SEC;
}
}
CREATE(wait_event_obj, struct wait_event_data, 1);
wait_event_obj->trigger = trig;
wait_event_obj->go = go;
wait_event_obj->type = type;
GET_TRIG_WAIT(trig) = event_create(trig_wait_event, wait_event_obj, when);
trig->curr_state = cl->next;
}
/* processes a script set command */
void process_set(struct script_data *sc, trig_data *trig, char *cmd)
{
char arg[MAX_INPUT_LENGTH], name[MAX_INPUT_LENGTH], *value;
value = two_arguments(cmd, arg, name);
skip_spaces(&value);
if (!*name) {
script_log("Trigger: %s, VNum %d. set w/o an arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
add_var(&GET_TRIG_VARS(trig), name, value, sc->context);
}
/* processes a script eval command */
void process_eval(void *go, struct script_data *sc, trig_data *trig,
int type, char *cmd)
{
char arg[MAX_INPUT_LENGTH], name[MAX_INPUT_LENGTH];
char result[MAX_INPUT_LENGTH], *expr;
expr = two_arguments(cmd, arg, name);
skip_spaces(&expr);
if (!*name) {
script_log("Trigger: %s, VNum %d. eval w/o an arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
eval_expr(expr, result, go, sc, trig, type);
add_var(&GET_TRIG_VARS(trig), name, result, sc->context);
}
/* script attaching a trigger to something */
void process_attach(void *go, struct script_data *sc, trig_data *trig,
int type, char *cmd)
{
char arg[MAX_INPUT_LENGTH], trignum_s[MAX_INPUT_LENGTH];
char result[MAX_INPUT_LENGTH], *id_p;
trig_data *newtrig;
char_data *c=NULL;
obj_data *o=NULL;
room_data *r=NULL;
long trignum, id;
id_p = two_arguments(cmd, arg, trignum_s);
skip_spaces(&id_p);
if (!*trignum_s) {
script_log("Trigger: %s, VNum %d. attach w/o an arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
if (!id_p || !*id_p || atoi(id_p)==0) {
script_log("Trigger: %s, VNum %d. attach invalid id arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
/* parse and locate the id specified */
eval_expr(id_p, result, go, sc, trig, type);
if (!(id = atoi(result))) {
script_log("Trigger: %s, VNum %d. attach invalid id arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
c = find_char(id);
if (!c) {
o = find_obj(id);
if (!o) {
r = find_room(id);
if (!r) {
script_log("Trigger: %s, VNum %d. attach invalid id arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
}
}
/* locate and load the trigger specified */
trignum = real_trigger(atoi(trignum_s));
if (trignum == NOTHING || !(newtrig=read_trigger(trignum))) {
script_log("Trigger: %s, VNum %d. attach invalid trigger: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), trignum_s);
return;
}
if (c) {
if (!IS_NPC(c)) {
script_log("Trigger: %s, VNum %d. attach invalid target: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), GET_NAME(c));
return;
}
if (!SCRIPT(c))
CREATE(SCRIPT(c), struct script_data, 1);
add_trigger(SCRIPT(c), newtrig, -1);
return;
}
if (o) {
if (!SCRIPT(o))
CREATE(SCRIPT(o), struct script_data, 1);
add_trigger(SCRIPT(o), newtrig, -1);
return;
}
if (r) {
if (!SCRIPT(r))
CREATE(SCRIPT(r), struct script_data, 1);
add_trigger(SCRIPT(r), newtrig, -1);
return;
}
}
/* script detaching a trigger from something */
void process_detach(void *go, struct script_data *sc, trig_data *trig,
int type, char *cmd)
{
char arg[MAX_INPUT_LENGTH], trignum_s[MAX_INPUT_LENGTH];
char result[MAX_INPUT_LENGTH], *id_p;
char_data *c=NULL;
obj_data *o=NULL;
room_data *r=NULL;
long id;
id_p = two_arguments(cmd, arg, trignum_s);
skip_spaces(&id_p);
if (!*trignum_s) {
script_log("Trigger: %s, VNum %d. detach w/o an arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
if (!id_p || !*id_p || atoi(id_p)==0) {
script_log("Trigger: %s, VNum %d. detach invalid id arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
/* parse and locate the id specified */
eval_expr(id_p, result, go, sc, trig, type);
if (!(id = atoi(result))) {
script_log("Trigger: %s, VNum %d. detach invalid id arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
c = find_char(id);
if (!c) {
o = find_obj(id);
if (!o) {
r = find_room(id);
if (!r) {
script_log("Trigger: %s, VNum %d. detach invalid id arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
}
}
if (c && SCRIPT(c)) {
if (remove_trigger(SCRIPT(c), trignum_s)) {
if (!TRIGGERS(SCRIPT(c))) {
extract_script(c, MOB_TRIGGER);
}
}
return;
}
if (o && SCRIPT(o)) {
if (remove_trigger(SCRIPT(o), trignum_s)) {
if (!TRIGGERS(SCRIPT(o))) {
extract_script(o, OBJ_TRIGGER);
}
}
return;
}
if (r && SCRIPT(r)) {
if (remove_trigger(SCRIPT(r), trignum_s)) {
if (!TRIGGERS(SCRIPT(r))) {
extract_script(r, WLD_TRIGGER);
}
}
return;
}
}
struct room_data *dg_room_of_obj(struct obj_data *obj)
{
if (IN_ROOM(obj) != NOWHERE) return &world[IN_ROOM(obj)];
if (obj->carried_by) return &world[IN_ROOM(obj->carried_by)];
if (obj->worn_by) return &world[IN_ROOM(obj->worn_by)];
if (obj->in_obj) return (dg_room_of_obj(obj->in_obj));
return NULL;
}
/* create a UID variable from the id number */
void makeuid_var(void *go, struct script_data *sc, trig_data *trig,
int type, char *cmd)
{
char junk[MAX_INPUT_LENGTH], varname[MAX_INPUT_LENGTH];
char arg[MAX_INPUT_LENGTH], name[MAX_INPUT_LENGTH];
char uid[MAX_INPUT_LENGTH];
*uid = '\0';
half_chop(cmd, junk, cmd); /* makeuid */
half_chop(cmd, varname, cmd); /* variable name */
half_chop(cmd, arg, cmd); /* numerical id or 'obj' 'mob' or 'room' */
half_chop(cmd, name, cmd); /* if the above was obj, mob or room, this is the name */
if (!*varname) {
script_log("Trigger: %s, VNum %d. makeuid w/o an arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
if (!arg || !*arg) {
script_log("Trigger: %s, VNum %d. makeuid invalid id arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
if (atoi(arg)!=0) { /* easy, if you pass an id number */
char result[MAX_INPUT_LENGTH];
eval_expr(arg, result, go, sc, trig, type);
sprintf(uid,"%c%s",UID_CHAR, result);
} else { /* a lot more work without it */
if (!name || !*name) {
script_log("Trigger: %s, VNum %d. makeuid needs name: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
if (is_abbrev(arg, "mob")) {
struct char_data *c = NULL;
switch (type) {
case WLD_TRIGGER:
c = get_char_in_room((struct room_data *)go, name);
break;
case OBJ_TRIGGER:
c = get_char_near_obj((struct obj_data *)go, name);
break;
case MOB_TRIGGER:
c = get_char_room_vis((struct char_data *)go, name, NULL);
break;
}
if (c) sprintf(uid,"%c%ld",UID_CHAR, GET_ID(c));
} else if (is_abbrev(arg, "obj")) {
struct obj_data *o = NULL;
switch (type) {
case WLD_TRIGGER:
o = get_obj_in_room((struct room_data *)go, name);
break;
case OBJ_TRIGGER:
o = get_obj_near_obj((struct obj_data *)go, name);
break;
case MOB_TRIGGER:
if ((o = get_obj_in_list_vis((struct char_data *)go, name, NULL,
((struct char_data *)go)->carrying)) == NULL)
o = get_obj_in_list_vis((struct char_data *)go, name, NULL,
world[IN_ROOM((struct char_data *)go)].contents);
break;
}
if (o) sprintf(uid,"%c%ld",UID_CHAR, GET_ID(o));
} else if (is_abbrev(arg, "room")) {
room_rnum r = NOWHERE;
switch (type) {
case WLD_TRIGGER:
r = real_room(((struct room_data *) go)->number);
break;
case OBJ_TRIGGER:
r = obj_room((struct obj_data *)go);
break;
case MOB_TRIGGER:
r = IN_ROOM((struct char_data *)go);
break;
}
if (r != NOWHERE) sprintf(uid,"%c%ld",UID_CHAR, (long)r+ROOM_ID_BASE);
} else {
script_log("Trigger: %s, VNum %d. makeuid syntax error: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
}
if (*uid)
add_var(&GET_TRIG_VARS(trig), varname, uid, sc->context);
}
/*
* processes a script return command.
* returns the new value for the script to return.
*/
int process_return(trig_data *trig, char *cmd)
{
char arg1[MAX_INPUT_LENGTH], arg2[MAX_INPUT_LENGTH];
two_arguments(cmd, arg1, arg2);
if (!*arg2) {
script_log("Trigger: %s, VNum %d. return w/o an arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return 1;
}
return atoi(arg2);
}
/*
* removes a variable from the global vars of sc,
* or the local vars of trig if not found in global list.
*/
void process_unset(struct script_data *sc, trig_data *trig, char *cmd)
{
char arg[MAX_INPUT_LENGTH], *var;
var = any_one_arg(cmd, arg);
skip_spaces(&var);
if (!*var) {
script_log("Trigger: %s, VNum %d. unset w/o an arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
if (!remove_var(&(sc->global_vars), var))
remove_var(&GET_TRIG_VARS(trig), var);
}
/*
* copy a locally owned variable to the globals of another script
* 'remote <variable_name> <uid>'
*/
void process_remote(struct script_data *sc, trig_data *trig, char *cmd)
{
struct trig_var_data *vd;
struct script_data *sc_remote=NULL;
char *line, *var, *uid_p;
char arg[MAX_INPUT_LENGTH], buf[MAX_INPUT_LENGTH], buf2[MAX_INPUT_LENGTH];
long uid, context;
room_data *room;
char_data *mob;
obj_data *obj;
line = any_one_arg(cmd, arg);
two_arguments(line, buf, buf2);
var = buf;
uid_p = buf2;
skip_spaces(&var);
skip_spaces(&uid_p);
if (!*buf || !*buf2) {
script_log("Trigger: %s, VNum %d. remote: invalid arguments '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
/* find the locally owned variable */
for (vd = GET_TRIG_VARS(trig); vd; vd = vd->next)
if (!str_cmp(vd->name, buf))
break;
if (!vd)
for (vd = sc->global_vars; vd; vd = vd->next)
if (!str_cmp(vd->name, var) &&
(vd->context==0 || vd->context==sc->context))
break;
if (!vd) {
script_log("Trigger: %s, VNum %d. local var '%s' not found in remote call",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), buf);
return;
}
/* find the target script from the uid number */
uid = atoi(buf2);
if (uid<=0) {
script_log("Trigger: %s, VNum %d. remote: illegal uid '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), buf2);
return;
}
/* for all but PC's, context comes from the existing context. */
/* for PC's, context is 0 (global) */
context = vd->context;
if ((room = find_room(uid))) {
sc_remote = SCRIPT(room);
} else if ((mob = find_char(uid))) {
sc_remote = SCRIPT(mob);
if (!IS_NPC(mob)) context = 0;
} else if ((obj = find_obj(uid))) {
sc_remote = SCRIPT(obj);
} else {
script_log("Trigger: %s, VNum %d. remote: uid '%ld' invalid",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), uid);
return;
}
if (sc_remote==NULL) return; /* no script to assign */
add_var(&(sc_remote->global_vars), vd->name, vd->value, context);
}
/*
* command-line interface to rdelete
* named vdelete so people didn't think it was to delete rooms
*/
ACMD(do_vdelete)
{
struct trig_var_data *vd, *vd_prev=NULL;
struct script_data *sc_remote=NULL;
char *var, *uid_p;
char buf[MAX_INPUT_LENGTH], buf2[MAX_INPUT_LENGTH];
long uid, context;
room_data *room;
char_data *mob;
obj_data *obj;
argument = two_arguments(argument, buf, buf2);
var = buf;
uid_p = buf2;
skip_spaces(&var);
skip_spaces(&uid_p);
if (!*buf || !*buf2) {
send_to_char(ch, "Usage: vdelete <variablename> <id>\r\n");
return;
}
/* find the target script from the uid number */
uid = atoi(buf2);
if (uid<=0) {
send_to_char(ch, "vdelete: illegal id specified.\r\n");
return;
}
if ((room = find_room(uid))) {
sc_remote = SCRIPT(room);
} else if ((mob = find_char(uid))) {
sc_remote = SCRIPT(mob);
if (!IS_NPC(mob)) context = 0;
} else if ((obj = find_obj(uid))) {
sc_remote = SCRIPT(obj);
} else {
send_to_char(ch, "vdelete: cannot resolve specified id.\r\n");
return;
}
if ((sc_remote==NULL) ||
(sc_remote->global_vars==NULL)) {
send_to_char(ch, "That id represents no global variables.\r\n");
return;
}
/* find the global */
for (vd = sc_remote->global_vars; vd; vd_prev = vd, vd = vd->next)
if (!str_cmp(vd->name, var))
break;
if (!vd) {
send_to_char(ch, "That variable cannot be located.\r\n");
return;
}
/* ok, delete the variable */
if (vd_prev) vd_prev->next = vd->next;
else sc_remote->global_vars = vd->next;
/* and free up the space */
free(vd->value);
free(vd->name);
free(vd);
send_to_char(ch, "Deleted.\r\n");
}
/*
* delete a variable from the globals of another script
* 'rdelete <variable_name> <uid>'
*/
void process_rdelete(struct script_data *sc, trig_data *trig, char *cmd)
{
struct trig_var_data *vd, *vd_prev=NULL;
struct script_data *sc_remote=NULL;
char *line, *var, *uid_p;
char arg[MAX_INPUT_LENGTH], buf[MAX_STRING_LENGTH], buf2[MAX_STRING_LENGTH];
long uid, context;
room_data *room;
char_data *mob;
obj_data *obj;
line = any_one_arg(cmd, arg);
two_arguments(line, buf, buf2);
var = buf;
uid_p = buf2;
skip_spaces(&var);
skip_spaces(&uid_p);
if (!*buf || !*buf2) {
script_log("Trigger: %s, VNum %d. rdelete: invalid arguments '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
/* find the target script from the uid number */
uid = atoi(buf2);
if (uid<=0) {
script_log("Trigger: %s, VNum %d. rdelete: illegal uid '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), buf2);
return;
}
if ((room = find_room(uid))) {
sc_remote = SCRIPT(room);
} else if ((mob = find_char(uid))) {
sc_remote = SCRIPT(mob);
if (!IS_NPC(mob)) context = 0;
} else if ((obj = find_obj(uid))) {
sc_remote = SCRIPT(obj);
} else {
script_log("Trigger: %s, VNum %d. remote: uid '%ld' invalid",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), uid);
return;
}
if (sc_remote==NULL) return; /* no script to delete a trigger from */
if (sc_remote->global_vars==NULL) return; /* no script globals */
/* find the global */
for (vd = sc_remote->global_vars; vd; vd_prev = vd, vd = vd->next)
if (!str_cmp(vd->name, var) &&
(vd->context==0 || vd->context==sc->context))
break;
if (!vd) return; /* the variable doesn't exist, or is the wrong context */
/* ok, delete the variable */
if (vd_prev) vd_prev->next = vd->next;
else sc_remote->global_vars = vd->next;
/* and free up the space */
free(vd->value);
free(vd->name);
free(vd);
}
/*
* makes a local variable into a global variable
*/
void process_global(struct script_data *sc, trig_data *trig, char *cmd, long id)
{
struct trig_var_data *vd;
char arg[MAX_INPUT_LENGTH], *var;
var = any_one_arg(cmd, arg);
skip_spaces(&var);
if (!*var) {
script_log("Trigger: %s, VNum %d. global w/o an arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
for (vd = GET_TRIG_VARS(trig); vd; vd = vd->next)
if (!str_cmp(vd->name, var))
break;
if (!vd) {
script_log("Trigger: %s, VNum %d. local var '%s' not found in global call",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), var);
return;
}
add_var(&(sc->global_vars), vd->name, vd->value, id);
remove_var(&GET_TRIG_VARS(trig), vd->name);
}
/* set the current context for a script */
void process_context(struct script_data *sc, trig_data *trig, char *cmd)
{
char arg[MAX_INPUT_LENGTH], *var;
var = any_one_arg(cmd, arg);
skip_spaces(&var);
if (!*var) {
script_log("Trigger: %s, VNum %d. context w/o an arg: '%s'",
GET_TRIG_NAME(trig), GET_TRIG_VNUM(trig), cmd);
return;
}
sc->context = atol(var);
}
void extract_value(struct script_data *sc, trig_data *trig, char *cmd)
{
char buf[MAX_INPUT_LENGTH], buf2[MAX_INPUT_LENGTH];
char *buf3;
char to[128];
int num;
buf3 = any_one_arg(cmd, buf);
half_chop(buf3, buf2, buf);
strcpy(to, buf2);
num = atoi(buf);
if (num < 1) {
script_log("extract number < 1!");
return;
}
half_chop(buf, buf3, buf2);
while (num>0) {
half_chop(buf2, buf, buf2);
num--;
}
add_var(&GET_TRIG_VARS(trig), to, buf, sc->context);
}
/* This is the core driver for scripts. */
int script_driver(void **go_adress, trig_data *trig, int type, int mode)
{
static int depth = 0;
int ret_val = 1;
struct cmdlist_element *cl;
char cmd[MAX_INPUT_LENGTH], *p;
struct script_data *sc = 0;
struct cmdlist_element *temp;
unsigned long loops = 0;
void *go = NULL;
void obj_command_interpreter(obj_data *obj, char *argument);
void wld_command_interpreter(struct room_data *room, char *argument);
if (depth > MAX_SCRIPT_DEPTH) {
script_log("Triggers recursed beyond maximum allowed depth.");
return ret_val;
}
depth++;
switch (type) {
case MOB_TRIGGER:
go = *(char_data **)go_adress;
sc = SCRIPT((char_data *) go);
break;
case OBJ_TRIGGER:
go = *(obj_data **)go_adress;
sc = SCRIPT((obj_data *) go);
break;
case WLD_TRIGGER:
go = *(room_data **)go_adress;
sc = SCRIPT((struct room_data *) go);
break;
}
if (mode == TRIG_NEW) {
GET_TRIG_DEPTH(trig) = 1;
GET_TRIG_LOOPS(trig) = 0;
sc->context = 0;
}
dg_owner_purged = 0;
for (cl = (mode == TRIG_NEW) ? trig->cmdlist : trig->curr_state;
cl && GET_TRIG_DEPTH(trig); cl = cl->next) {
for (p = cl->cmd; *p && isspace(*p); p++);
if (*p == '*') /* comment */
continue;
else if (!strn_cmp(p, "if ", 3)) {
if (process_if(p + 3, go, sc, trig, type))
GET_TRIG_DEPTH(trig)++;
else
cl = find_else_end(trig, cl, go, sc, type);
}
else if (!strn_cmp("elseif ", p, 7) ||
!strn_cmp("else", p, 4)) {
cl = find_end(cl);
GET_TRIG_DEPTH(trig)--;
} else if (!strn_cmp("while ", p, 6)) {
temp = find_done(cl);
if (process_if(p + 6, go, sc, trig, type)) {
temp->original = cl;
} else {
cl = temp;
loops = 0;
}
} else if (!strn_cmp("switch ", p, 7)) {
cl = find_case(trig, cl, go, sc, type, p + 7);
} else if (!strn_cmp("end", p, 3)) {
GET_TRIG_DEPTH(trig)--;
} else if (!strn_cmp("done", p, 4)) {
/* if in a while loop, cl->original is non-NULL */
if (cl->original) {
char *orig_cmd = cl->original->cmd;
while (*orig_cmd && isspace(*orig_cmd)) orig_cmd++;
if (cl->original && process_if(orig_cmd + 6, go, sc, trig,
type)) {
cl = cl->original;
loops++;
GET_TRIG_LOOPS(trig)++;
if (loops == 30) {
process_wait(go, trig, type, "wait 1", cl);
depth--;
return ret_val;
}
if (GET_TRIG_LOOPS(trig) >= 100) {
script_log("SCRIPTERR: Trigger VNum %d has looped 100 times!!!",
GET_TRIG_VNUM(trig));
break;
}
} else {
/* if we're falling through a switch statement, this ends it. */
}
}
} else if (!strn_cmp("break", p, 5)) {
cl = find_done(cl);
} else if (!strn_cmp("case", p, 4)) {
/* Do nothing, this allows multiple cases to a single instance */
}
else {
var_subst(go, sc, trig, type, p, cmd);
if (!strn_cmp(cmd, "eval ", 5))
process_eval(go, sc, trig, type, cmd);
else if (!strn_cmp(cmd, "nop ", 4)); /* nop: do nothing */
else if (!strn_cmp(cmd, "extract ", 8))
extract_value(sc, trig, cmd);
else if (!strn_cmp(cmd, "makeuid ", 8))
makeuid_var(go, sc, trig, type, cmd);
else if (!strn_cmp(cmd, "halt", 4))
break;
else if (!strn_cmp(cmd, "dg_cast ", 8))
do_dg_cast(go, sc, trig, type, cmd);
else if (!strn_cmp(cmd, "dg_affect ", 10))
do_dg_affect(go, sc, trig, type, cmd);
else if (!strn_cmp(cmd, "global ", 7))
process_global(sc, trig, cmd, sc->context);
else if (!strn_cmp(cmd, "context ", 8))
process_context(sc, trig, cmd);
else if (!strn_cmp(cmd, "remote ", 7))
process_remote(sc, trig, cmd);
else if (!strn_cmp(cmd, "rdelete ", 8))
process_rdelete(sc, trig, cmd);
else if (!strn_cmp(cmd, "return ", 7))
ret_val = process_return(trig, cmd);
else if (!strn_cmp(cmd, "set ", 4))
process_set(sc, trig, cmd);
else if (!strn_cmp(cmd, "unset ", 6))
process_unset(sc, trig, cmd);
else if (!strn_cmp(cmd, "wait ", 5)) {
process_wait(go, trig, type, cmd, cl);
depth--;
return ret_val;
}
else if (!strn_cmp(cmd, "attach ", 7))
process_attach(go, sc, trig, type, cmd);
else if (!strn_cmp(cmd, "detach ", 7))
process_detach(go, sc, trig, type, cmd);
else if (!strn_cmp(cmd, "version", 7))
mudlog(NRM, LVL_GOD, TRUE, "%s", DG_SCRIPT_VERSION);
else {
switch (type) {
case MOB_TRIGGER:
command_interpreter((char_data *) go, cmd);
break;
case OBJ_TRIGGER:
obj_command_interpreter((obj_data *) go, cmd);
break;
case WLD_TRIGGER:
wld_command_interpreter((struct room_data *) go, cmd);
break;
}
if (dg_owner_purged) {
depth--;
*go_adress = NULL;
return ret_val;
}
}
}
}
switch (type) { /* the script may have been detached */
case MOB_TRIGGER: sc = SCRIPT((char_data *) go); break;
case OBJ_TRIGGER: sc = SCRIPT((obj_data *) go); break;
case WLD_TRIGGER: sc = SCRIPT((struct room_data *) go); break;
}
if (sc)
free_varlist(GET_TRIG_VARS(trig));
GET_TRIG_VARS(trig) = NULL;
GET_TRIG_DEPTH(trig) = 0;
depth--;
return ret_val;
}
/* returns the real number of the trigger with given virtual number */
int real_trigger(int vnum)
{
int bot = 0, mid;
int top = top_of_trigt-1;
/* perform binary search on trigger-table */
for (;;) {
mid = (bot + top) / 2;
/* Thanks to Derek Fisk for fixing this loop */
if (bot > top)
return (NOTHING);
if (trig_index[mid]->vnum == vnum)
return (mid);
if (trig_index[mid]->vnum > vnum)
top = mid - 1;
else
bot = mid + 1;
}
}
ACMD(do_tstat)
{
int rnum;
char str[MAX_INPUT_LENGTH];
half_chop(argument, str, argument);
if (*str) {
rnum = real_trigger(atoi(str));
if (rnum == NOTHING) {
send_to_char(ch, "That vnum does not exist.\r\n");
return;
}
do_stat_trigger(ch, trig_index[rnum]->proto);
} else
send_to_char(ch, "Usage: tstat <vnum>\r\n");
}
/*
* scans for a case/default instance
* returns the line containg the correct case instance, or the last
* line of the trigger if not found.
*/
struct cmdlist_element *
find_case(struct trig_data *trig, struct cmdlist_element *cl,
void *go, struct script_data *sc, int type, char *cond)
{
char result[MAX_INPUT_LENGTH];
struct cmdlist_element *c;
char *p, *buf;
eval_expr(cond, result, go, sc, trig, type);
if (!(cl->next))
return cl;
for (c = cl->next; c->next; c = c->next) {
for (p = c->cmd; *p && isspace(*p); p++);
if (!strn_cmp("while ", p, 6) || !strn_cmp("switch", p, 6))
c = find_done(c);
else if (!strn_cmp("case ", p, 5)) {
buf = (char*)malloc(MAX_STRING_LENGTH);
#if 0 /* the original implementation */
sprintf(buf, "(%s) == (%s)", cond, p + 5);
if (process_if(buf, go, sc, trig, type)) {
#else /* new! improved! bug fixed! */
eval_op("==", result, p + 5, buf, go, sc, trig);
if (*buf && *buf!='0') {
#endif
free(buf);
return c;
}
free(buf);
} else if (!strn_cmp("default", p, 7))
return c;
else if (!strn_cmp("done", p, 3))
return c;
}
return c;
}
/*
* scans for end of while/switch-blocks.
* returns the line containg 'end', or the last
* line of the trigger if not found.
*/
struct cmdlist_element *
find_done(struct cmdlist_element *cl)
{
struct cmdlist_element *c;
char *p;
if (!(cl->next))
return cl;
for (c = cl->next; c->next; c = c->next) {
for (p = c->cmd; *p && isspace(*p); p++);
if (!strn_cmp("while ", p, 6) || !strn_cmp("switch ", p, 7))
c = find_done(c);
else if (!strn_cmp("done", p, 3))
return c;
}
return c;
}
/* read a line in from a file, return the number of chars read */
int fgetline(FILE *file, char *p)
{
int count = 0;
do {
*p = fgetc(file);
if (*p != '\n' && !feof(file)) {
p++;
count++;
}
} while (*p != '\n' && !feof(file));
if (*p == '\n') *p = '\0';
return count;
}
/* load in a character's saved variables */
void read_saved_vars(struct char_data *ch)
{
FILE *file;
long context;
char fn[127];
char input_line[1024], *temp, *p;
char varname[32];
char context_str[16];
/* create the space for the script structure which holds the vars */
/* We need to do this first, because later calls to 'remote' will need */
/* a script already assigned. */
CREATE(SCRIPT(ch), struct script_data, 1);
/* find the file that holds the saved variables and open it*/
get_filename(fn, sizeof(fn), SCRIPT_VARS_FILE, GET_NAME(ch));
file = fopen(fn,"r");
/* if we failed to open the file, return */
if( !file )
return;
/* walk through each line in the file parsing variables */
do {
if (get_line(file, input_line)>0) {
p = temp = strdup(input_line);
temp = any_one_arg(temp, varname);
temp = any_one_arg(temp, context_str);
skip_spaces(&temp); /* temp now points to the rest of the line */
context = atol(context_str);
add_var(&(SCRIPT(ch)->global_vars), varname, temp, context);
free(p); /* plug memory hole */
}
} while( !feof(file) );
/* close the file and return */
fclose(file);
}
/* save a characters variables out to disk */
void save_char_vars(struct char_data *ch)
{
FILE *file;
char fn[127];
struct trig_var_data *vars;
/* immediate return if no script (and therefore no variables) structure */
/* has been created. this will happen when the player is logging in */
if (SCRIPT(ch) == NULL) return;
/* we should never be called for an NPC, but just in case... */
if (IS_NPC(ch)) return;
get_filename(fn, sizeof(fn), SCRIPT_VARS_FILE, GET_NAME(ch));
unlink(fn);
/* make sure this char has global variables to save */
if (ch->script->global_vars == NULL) return;
vars = ch->script->global_vars;
file = fopen(fn,"wt");
if (!file) {
mudlog( NRM, LVL_GOD, TRUE,
"SYSERR: Could not open player variable file %s for writing.:%s",
fn, strerror(errno));
return;
}
/* note that currently, context will always be zero. this may change */
/* in the future */
while (vars) {
if (*vars->name != '-') /* don't save if it begins with - */
fprintf(file, "%s %ld %s\n", vars->name, vars->context, vars->value);
vars = vars->next;
}
fclose(file);
}