Scripting

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There's a good scripting reference at TBA, but there are differences with 4D's scripting commands. These pages aim to give an overview of these commands. One notable difference is crafting, for which several new commands and fields have been added.

To give an example of the terms used in these pages, consider this line: 

   nop %actor.exp(1000)%

Here nop is the command, actor is the variable, exp is the field and 1000 is the subfield.

A character is a mob or player. The examples usually use actor when it concerns a character.

In scripts, a uid is the character '}' followed by a number. The number is the id of a character, object or room. A uid is used to manipulate what it points to, from any script.

To make it easier to debug scripts, a scripting debugger is available. It can set breakpoints, view or change variables, step through a trigger, and show the result of any scripting expression.

The commands, fields and variables are grouped alphabetically:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z


The aff_ fields are used to get or change the stats of an object.

aff_ac

   %object.aff_ac%

Returns the AC an object gives. 

   nop %object.aff_ac(-5)%

Sets the AC of an object to -5.


aff_age

   %object.aff_age%

Returns the age an object gives. 

   nop %object.aff_age(125)%

Sets the age of an object to 125.


aff_breath_def

   %object.aff_breath_def%

Returns the breath defense an object gives. 

   nop %object.aff_breath_def(50)%

Sets the breath defense of an object to 50.


aff_cha

   %object.aff_cha%

Returns the charisma an object gives. 

   nop %object.aff_cha(2)%

Sets the charisma of an object to 2.


aff_con

   %object.aff_con%

Returns the constitution an object gives. 

   nop %object.aff_con(-3)%

Sets the constitution of an object to -3.


aff_coolness

   %object.aff_coolness%

Returns the coolness an object gives. 

   nop %object.aff_coolness(5)%

Sets the coolness of an object to 5.


aff_damroll

   %object.aff_damroll%

Returns the damroll an object gives. 

   nop %object.aff_damroll(3)%

Sets the damroll of an object to 3.


aff_dex

   %object.aff_dex%

Returns the dexterity an object gives. 

   nop %object.aff_dex(1)%

Sets the dexterity of an object to 1.


aff_hitroll

   %object.aff_hitroll%

Returns the hitroll an object gives. 

   nop %object.aff_hitroll(2)%

Sets the hitroll of an object to 2.


aff_int

   %object.aff_int%

Returns the intelligence an object gives. 

   nop %object.aff_int(3)%

Sets the intelligence of an object to 3.


aff_maxhit

   %object.aff_maxhit%

Returns the maximum hitpoints an object gives. 

   nop %object.aff_maxhit(700)%

Sets the maximum hitpoints of an object to 700.


aff_maxmana

   %object.aff_mana%

Returns the maximum mana an object gives. 

   nop %object.aff_maxmana(2000)%

Sets the maximum mana of an object to 2000.


aff_maxmove

   %object.aff_maxmove%

Returns the maximum moves an object gives. 

   nop %object.aff_maxmove(500)%

Sets the maximum moves of an object to 500.


aff_mine_bonus

   %object.aff_mine_bonus%

Returns the mine bonus an object gives. 

   nop %object.aff_mine_bonus(10)%

Sets the mine bonus of an object to 10.


aff_mine_protection

   %object.aff_mine_protection%

Returns the mine protection an object gives. 

   nop %object.aff_mine_protection(25)%

Sets the mine protection of an object to 25.


aff_mine_speed

   %object.aff_mine_speed%

Returns the mine speed an object gives. 

   nop %object.aff_mine_speed(30)%

Sets the mine speed of an object to 30.


aff_mine_stealth

   %object.aff_mine_stealth%

Returns the mine stealth an object gives. 

   nop %object.aff_mine_stealth(10)%

Sets the mine stealth of an object to 10.


aff_paralyze_def

   %object.aff_paralyze_def%

Returns the paralyze defense an object gives. 

   nop %object.aff_paralyze_def(5)%

Sets the paralyze defense of an object to 5.


aff_petrify_def

   %object.aff_petrify_def%

Returns the petrify defense an object gives. 

   nop %object.aff_petrify_def(3)%

Sets the petrify defense of an object to 3.


aff_rod_def

   %object.aff_rod_def%

Returns the rod defense an object gives. 

   nop %object.aff_rod_def(-2)%

Sets the rod defense of an object to -2.


aff_regen_hit

   %object.aff_regen_hit%

Returns the hitpoint regeneration an object gives. 

   nop %object.aff_regen_hit(10)%

Sets the hitpoint regeneration of an object to 10.


aff_regen_mana

   %object.aff_regen_mana%

Returns the mana regeneration an object gives. 

   nop %object.aff_regen_mana(5)%

Sets the mana regeneration of an object to 5.


aff_regen_move

   %object.aff_regen_move%

Returns the move regeneration an object gives. 

   nop %object.aff_regen_move(10)%

Sets the move regeneration of an object to 10.


aff_speed

   %object.aff_speed%

Returns the speed an object gives. 

   nop %object.aff_speed(50)%

Sets the speed of an object to 50.


aff_spell_def

   %object.aff_spell_def%

Returns the spell defense an object gives. 

   nop %object.aff_spell_def(10)%

Sets the spell defense of an object to 10.


aff_str

   %object.aff_str%

Returns the strength an object gives. 

   nop %object.aff_str(2)%

Sets the strength of an object to 2.


aff_wis

   %object.aff_wis%

Returns the wisdom an object gives. 

   nop %object.aff_wis(-1)%

Sets the wisdom of an object to -1.


assemble

   nop %actor.assemble(123)%

If the inventory of actor holds the ingredients of the assembly, then they are replaced by object 123.


assembly

   %assembly.exists(103)%

Returns 1 if an assembly exists which creates an object with vnum 103. 

   %assembly.craft(5770)%

Returns 1 if an assembly exists that creates object 5770 by using the command craft. 

   %assembly.brew(beer bottle)%

Returns 1 if an assembly exists that creates an object named beer bottle with the command brew.


assemblycheck

   %actor.assemblycheck(123)%

Returns 1 if actor has the ingredients to assemble object 123.


attach

   attach %mob% 123

Attaches trigger 123 to mob which is a uid here. You can also attach to an id: 

   attach %obj.id% 234


body

   %actor.body%

Returns all body positions. 

   nop %player.body(crest)%

Toggles the extra body position crest. Only extra body positions can be toggled.


bodycheck

   %player.bodycheck(rknee)

Returns 1 if player has the body position rknee (mobs have all body positions).


carriedamount

   %actor.carriedamount%

Returns the number of items actor has in inventory.


carriedweight

   %actor.carriedweight%

Returns the total weight actor is carrying in inventory and equipment combined.


charat

Returns a letter in a string: 

   eval word test
   %echo% %word.charat(3)%

Result: S


clan

   %player.clan%

Returns the clan number player is in. 

   %player.clan(2)%

Puts player in clan 2.


clanname

   %player.clanname%

Returns the name of the clan player is in.


clanrank

   %player.clanrank%

Returns the clan rank of player. 

   %player.clanrank(3)%

Sets the clan rank of player to 3.


class_tier

   %actor.class_tier%

Returns the tier of actor. 

   %mob.class_tier(3)%

Sets the tier of mob to 3.


colour

See the crafting section.


contained_by

   %object.contained_by%

Returns the uid of the container which holds the object.


cool

   %player.cool%

Returns the coolness of player. 

   %player.cool(7)%

Adds 7 to the coolness of player. The resulting value will lie between 3 and 22.


damroll

   %player.damroll%

Returns the damroll of player. 

   %player.damroll(50)%

Adds 50 to the damroll of player. The resulting value will lie between 3 and 150.


dest

   %mob.dest%

Returns the room vnum of the destination of the mob. 

   %mob.dest(123)%

Sets the room vnum of the destination of mob to 123. 

   %object.dest%

Returns the room vnum of the destination of the object. 

   %object.dest(234)%

Sets the room vnum of the destination of object to 234.


dg_affect

Sets or removes an affect or apply on a character. See help dg_affect.


dg_dest

   dg_dest add 567 self

Add room 567 to the destination list of the mob or object the trigger is on. 

   dg_dest remove 123 %object%

Remove destination room 123 from object. 

   dg_dest remove all %mob%

Remove the entire travel list from mob.


dg_letter

Returns a letter in a string: 

   eval word test
   dg_letter letter 3 %word%
   %echo% %letter%

Result: S


dg_peek

   dg_peek %actor% 3001

Shows room 3001 to actor.


dimension

   %room.dimension%

Returns the dimension a room is in.


dyecount

See the section on crafting.


exp_needed

   %player.exp_needed%

Returns the exp player needs to make the next level.


flag

   %room.flag(peaceful)%

Returns 1 if the room is peaceful. The flag names are the same ones as in the room flags section of redit.


follower_in_room

   %player.follower_in_room(123)%

Returns 1 if the follower with vnum 123 of player is in the same room as player. 

   %player.follower_in_room(the black dog)%

Returns 1 if a follower of player is called the black dog and is in the same room as player.


forget_subskills

   %player.forget_subskills(combatant)%

Makes player lose all subkills belonging to the profession combatant.


function

   function 123 book 1 shield

Calls function trigger 123 with the argument book 1 shield, which is available to the trigger through the variable %args%. A function trigger runs inside the script of the calling trigger, so it has access to all global variables. A return value can be set in another global variable, which the calling trigger can use once the function trigger finishes.


has_pos

   %object.has_pos(wield)%

Returns 1 if object can be wielded.


has_script

   %room.has_script%

Returns 1 if there's a script attached to room.


hitroll

   %player.hitroll%

Returns the hitroll of player.


hunger

   %player.hunger%

Returns the hunger value of player. It's a measure of how full a player is. 

   nop %player.hunger(50)%

Sets the hunger value of player to 50. If the value is -1 then player will never be hungry. If the value is 0 then player is extremely hungry. If the value is larger than 47 then player is full.


hunt

   %mob.hunt%

Returns 1 if mob is hunting and makes mob move towards the target.


hunting

   %mob.hunting%

Returns the uid of the character mob is hunting.


in_material_group

See the crafting section.


innate

   %object.innate%

Returns the spell number of the innate on object. 

   nop %object.innate(1)%

Sets the innate of object to armor. 

   nop %object.innate(shield)%

Sets the innate of object to shield.


insert_word

Syntax: insert_word <word> <pos> <v>

Inserts word <word> at position <pos> in variable <v>.

The first position is 1. If the position is larger than the number of words, the word is appended. 

   eval sentence Hello how are you?
   insert_word there, 2 sentence
   %echo% %sentence%

Result: Hello there, how are you?


is_cheater

   %player.is_cheater%

Returns 1 if player has the cheater flag. 

   nop %player.is_cheater(on)%

Sets player's cheater flag. 

   nop %player.is_cheater(off)%

Removes player's cheater flag.


is_flying

   %actor.is_flying%

Returns 1 if actor is flying.


is_helper

   %player.is_helper%

Returns 1 if player is a newbie helper. 

   nop %player.is_helper(on)%

Makes player a newbie helper. 

   nop %player.is_helper(off)%

Stops player from being a newbie helper.


is_herd_cattle

   %mob.is_herd_cattle%

Returns 1 if mob is flagged as a cattle herd mob. These mobs follow other mobs from the same herd.

is_herd_horse

   %mob.is_herd_horse%

Returns 1 if mob is flagged as a horse herd mob. These mobs follow other mobs from the same herd.

is_herd_sheep

   %mob.is_herd_sheep%

Returns 1 if mob is flagged as a sheep herd mob. These mobs follow other mobs from the same herd.


is_hero

   %player.is_hero%

Returns 1 if player is a hero.


is_npc

   %actor.is_npc%

Returns 1 if actor is a mob.


is_pk

   %player.is_pk%

Returns 1 if player is a PK-er.


is_pregnant

   %player.is_pregnant%

Returns 1 if player is expecting. 

   nop %player.is_pregnant(on)%

Makes player pregnant. 

   nop %player.is_pregnant(off)%

Stops player's pregnancy.


is_roleplay

   %player.is_roleplay%

Returns 1 if player has an RP flag.


is_rpl

   %player.is_rpl%

Returns 1 if player is an RP leader.


is_wizinvis

   %mob.is_wizinvis%

Returns 1 if mob is wizinvis.


lag

   %lag% %actor% 100

Lags actor for 10 seconds (the maximum is 300 = 30 seconds).

%lag% translates to mlag for mob triggers, olag for object triggers and wlag for room triggers.


log

   log %actor.name% did %cmd%

This can be used to send a message to syslog for troubleshooting purposes.


longdesc

   %mob.longdesc%

Returns the look desc of mob.


material

See the crafting section.


maxcarriedamount

   %actor.maxcarriedamount%

Returns the maximum number of items actor can carry.


maxcarriedweight

   %actor.maxcarriedweight%

Returns the maximum weight actor can carry.


max_quality_value

See the crafting section.


maxstamina

   %actor.maxstamina%

Returns the maximum stamina of actor.


mid

   %mob.mid%

Returns the id of the master of mob.


mod

   %mod.5(2)%

Returns 5 % 2 (the modulo operation).


mzreset

   mzreset

If it's a mob trigger, the mob resets the zone it's in.


next_follower

   %actor.next_follower%

Returns the id of the next follower if actor is a follower.


next_in_list

   %object.next_in_list%

If object is inside a container, it returns the uid of the next object.


nographics

   %player.nographics%

Returns 1 if player has nographics toggled on.


now

   %now%

Returns the current unix time.


num_of_repairs

See the crafting section.


omr

   %omr%

Returns mobile for a mob trigger, object for an obj trigger and room for a room trigger.


origin

See the crafting section.


people

   %object.people%

Returns the uid of the first character in the room of object.

The object may be in a room, worn, carried or inside a container. 

   %object.people(123)%

Returns the uid of the first character with vnum 123 in the room.

The same goes for 

   %room.people%
   %room.people(123)%
   %actor.people%
   %actor.people(123)%


perc

   %player.perc%

Returns the involvement of player. For example: 33.3333


pkdeaths

   %player.pkdeaths%

Returns the number of deaths of player in a PK fight.


pkkills

   %player.pkkills%

Returns the number of PK victories of player.


pkpoints

   %player.pkpoints%

Returns the number of PK points player has.


playeruid

   playeruid p Bob

Sets p to the uid of Bob, if Bob is online.


purgemob

   purgemob %mob%

Completely purges mob, including equipment and inventory. 

   purgemob self

This works if it's a mob trigger.


quality_value

See the crafting section.


random

   %random.char%

Returns the uid of a random character in the room. It won't be an imm unless it has nohassle off.

If it's a mob trigger then the character is seen by the mob. 

   %random.dir%

Returns a random direction you can move in. 

   %random.7%

Returns a number from 1 to 7.


realday

   %realday%

Returns 86400, the number of seconds in a day.


realhour

   %realhour%

Returns 3600, the number of seconds in an hour.


remorts

   %player.remorts%

Returns the number of remorts of player.


repair

See the crafting section.


replace_letter

Usage: replace_letter <letter> <position> <variable>

Replaces a letter at a certain position in a variable. 

   eval x test
   replace_letter n 3 x
   %echo% %x%

Result: Tent


replace_word

Usage: replace_word <word> <position> <variable>

Replaces a word at a certain position in a variable. 

   eval x hi there
   replace_word hello 1 x
   %echo% %x%

Result: Hello there


restring

Usage: restring <id|uid> <field> <value>

Changes an object desc. 

   restring 123 name heavy object

Renames the object with id 123. 

   restring %object% short a heavy object

Changes the shortdesc of object. 

   restring %object.id% long A heavy object is lying here.

Changes the long desc of object. 

   restring %object% extra 'side right' The right side is very interesting.

Adds an extra desc for side right. 

   restring %self% extra 'side right' The right side is not very interesting anymore.

Changes the extra desc for side right.


ridden_by

   %actor.ridden_by%

Returns the uid of the character riding actor.


riding

   %actor.riding%

Returns the uid of the character actor is riding.


rpgroup

   %player.rpgroup%

Returns the name of the RP group player is in.


save_affects

See the crafting section.


sector

   %room.sector%

Returns the sector name of room.


set_colour_name

See the crafting section.


set_material_name

See the crafting section.


set_quality_name

See the crafting section.


speed

   %actor.speed%

Returns the speed of actor.


stage_value

See the crafting section.


stamina

   %actor.stamina%

Returns the stamina of actor. 

   nop %actor.stamina(75)%

Sets the stamina of actor to 75. The value will lie between 0 and the maximum of actor.


subdecrease

   %player.subdecrease(pillage)%

Decreases the skill player has in pillage by 2%.


subincrease

   %player.subincrease(garotte)%

Increases the skill player has in garotte by 2%. The subskill is added if player doesn't know it.


subskill

   %player.subskill(weaver)%

Returns the weaver skill of player.


target

Syntax: target <uid of actor> inv|eq|room|char <argument>

Creates a local variable that holds the target of what an argument refers to, seen through the eyes of actor. 

   target %actor% obj inv %arg%
   target %actor% obj eq %arg%
   target %actor% obj room %arg%

Matches arg with an object in inventory, equipment and room, respectively. If there's no match, %obj% will be empty. 

   target %actor% ch char %arg%

Matches arg with a character in the room.


thirst

   %player.thirst%

Returns the thirst value of player. It's a measure of how full a player is. 

   nop %player.thirst(30)%

Sets the thirst value of player to 30. If the value is -1 then player will never be thirsty. If the value is 0 then player is parched. If the value is larger than 47 then player is full.


time

   %time.hour%
   %time.day%
   %time.month%
   %time.year%
   %time.season%
   %time.moon%

Returns the respective mud time.


trade

   %player.trade%

Returns the number of tradepoints player has. 

   nop %player.trade(10)%

Adds 10 tradepoints to player's balance.


val

   %object.val1%

Returns object value 1 of object. 

   nop %object.val2(7)%

Sets object value 2 of object to 7.


word_count

   %text.word_count%

Returns the number of words in text.


wordat

Returns a word from a sentence. 

   eval text Once upon a time
   %echo% %text.wordat(2)%

Result: Upon


zecho

   %zecho% 30 Boo!

Sends a message to all players in zone 30. It translates to mzecho for mob triggers, to ozecho for obj triggers and to wzecho for room triggers.


zonename

   %room.zonename%

Returns the name of the zone room is in.


zrecho

   %zrecho% 30 3001 3010 Boo!

Sends a message to every player in zone 30 in rooms 3001-3010. It translates to mzrecho for mob triggers, to ozrecho for obj triggers and to wzrecho for room triggers.

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