code/__DEFINES/dcs/signals/signals_object.dm

Define Details

COMPONENT_ACTION_HANDLED

Return to prevent the default behavior (attack_selfing) from occurring.

COMPONENT_CANCEL_EQUIPMENT_CLICK

Prevents click from happening.

COMPONENT_CANCEL_GUN_FIRE

Also returned to cancel COMSIG_MOB_TRYING_TO_FIRE_GUN

COMPONENT_CANCEL_MELEE_CLICK

Prevents click from happening.

COMPONENT_CANT_USE_MACHINE_INTERACT

Can't interact with the machine

COMPONENT_CANT_USE_MACHINE_TOOLS

Can't use tools on the machine

COMPONENT_CLOSET_INSERT_INTERRUPT

used to interrupt insertion

COMPONENT_EQUIPPED_FAILED

This will make the on_equipped proc return FALSE.

COMPONENT_ITEM_ACTION_SLOT_INVALID

Return to prevent the default behavior (attack_selfing) from occurring.

COMPONENT_ITEM_BLOCK_UNEQUIP

only the pre unequip can be cancelled

COMPONENT_MINDSHIELD_DECONVERTED

Are we the reason for deconversion?

COMPONENT_MINDSHIELD_PASSED

Did they successfully get mindshielded?

COMPONENT_MINDSHIELD_RESISTED

Did they resist the mindshield?

COMPONENT_OFFER_INTERRUPT

Interrupts the offer proc

COMPONENT_OFFER_TAKE_INTERRUPT

Interrupts the offer acceptance

COMPONENT_ORE_SILO_ALLOW

The ore silo is allowed to be used

COMPONENT_ORE_SILO_DENY

The ore silo is not allowed to be used

COMPONENT_STOP_EXPORT

Stops the export from calling sell_object() on the item, so you can handle it manually.

COMPONENT_STOP_EXPORT_REPORT

Stops the export from adding the export information to the report, so you can handle it manually.

COMSIG_ADVANCED_CAMERA_EYE_CREATED

Sent from /obj/machinert/console/camera_advanced/attack_hand() : (mob/eye/camera/remote/new_camera)

COMSIG_AIRLOCK_SET_BOLT

from /obj/machinery/door/airlock/set_bolt():

COMSIG_ARCADE_VICTORY

from /obj/machinery/computer/arcade/victory_tickets(tickets, sound = TRUE)

COMSIG_ARMOR_PLATED

Called when an armor plate is successfully applied to an object

COMSIG_ASSEMBLY_ADDED_TO_BUTTON

Sent when an assembly is added to a button : (obj/machinery/button/button, mob/user)

COMSIG_ASSEMBLY_ADDED_TO_PRESSURE_PLATE

Sent when an assembly is added to a pressure plate : (obj/item/pressureplate/pressure_plate, mob/user)

COMSIG_ASSEMBLY_ATTACHED

Sent from /obj/item/assembly/on_attach(): (atom/holder)

COMSIG_ASSEMBLY_DETACHED

Sent from /obj/item/assembly/on_detach(): (atom/holder)

COMSIG_ASSEMBLY_PRE_ATTACH

Sent from /datum/wires/attach_assembly() : (atom/holder)

COMSIG_ASSEMBLY_PULSED

from /obj/item/assembly/proc/pulsed(mob/pulser)

COMSIG_ASSEMBLY_REMOVED_FROM_BUTTON

Sent when an assembly is removed from a button : (obj/machinery/button/button, mob/user)

COMSIG_ASSEMBLY_REMOVED_FROM_PRESSURE_PLATE

Sent when an assembly is removed from a pressure plate : (obj/item/pressureplate/pressure_plate, mob/user)

COMSIG_ATMOS_MACHINE_SET_ON

from /obj/machinery/atmospherics/set_on(active): (on)

COMSIG_ATOM_CONTENTS_WEIGHT_CLASS_CHANGED

Sent from /obj/item/update_weight_class(), to its loc. (obj/item/changed_item, old_w_class, new_w_class)

COMSIG_BEACON_DISABLED

from /obj/item/beacon/proc/turn_off()

COMSIG_BIBLE_SMACKED

from /obj/item/book/bible/interact_with_atom(): (mob/user)

COMSIG_CABLE_ADDED_TO_POWERNET

Sent from /datum/powernet/add_cable()

COMSIG_CABLE_REMOVED_FROM_POWERNET

Sent from /datum/powernet/remove_cable()

COMSIG_CAMERA_IMAGE_CAPTURED

from /obj/item/camera/captureimage(): (atom/target, mob/user)

COMSIG_CARBON_BUMPED_AIRLOCK_OPEN

from /obj/machinery/door/airlock/bumpopen(), to the carbon who bumped: (airlock)

COMSIG_CASING_EJECTED

called in /obj/item/gun/ballistic/process_chamber (casing)

COMSIG_CASING_READY_PROJECTILE

from the base of /obj/item/ammo_casing/ready_proj() : (atom/target, mob/living/user, quiet, zone_override, atom/fired_from)

COMSIG_CLOSET_DELIVERED

a deliver_first element closet was successfully delivered

COMSIG_CLOSET_INSERT

Closets From base of [/obj/structure/closet/proc/insert]: (atom/movable/inserted)

COMSIG_CLOSET_POST_CLOSE

From close

COMSIG_CLOSET_POST_OPEN

From open: (forced)

COMSIG_CLOSET_PRE_CLOSE

From close

COMSIG_CLOSET_PRE_OPEN

From open: (forced)

COMSIG_COMPUTER_RECEIVED_MESSAGE

from /datum/computer_file/program/messenger/proc/receive_message

COMSIG_CRUSHER_FIRED_BLAST

Sent from /obj/item/kinetic_crusher/proc/fire_kinetic_blast() : (atom/target, mob/living/user, obj/projectile/destabilizer/destabilizer)

COMSIG_CRYO_SET_ON

from /obj/machinery/cryo_cell/set_on(bool): (on)

COMSIG_CURSED_SLOT_MACHINE_LOST

from /obj/structure/cursed_slot_machine/determine_victor() when someone loses.

COMSIG_CURSED_SLOT_MACHINE_USE

from /obj/structure/cursed_slot_machine/handle_status_effect() when someone pulls the handle on the slot machine

COMSIG_DART_INSERT_ADDED

from /datum/component/dart_insert/add_to_dart() : (obj/item/ammo_casing, mob/user)

COMSIG_DART_INSERT_PARENT_RESKINNED

from /datum/component/dart_insert/on_reskin()

COMSIG_DART_INSERT_REMOVED

from /datum/component/dart_insert/remove_from_dart() : (obj/ammo_casing/dart, mob/user)

COMSIG_DETECTIVE_SCANNED

from /obj/item/detective_scanner/scan(): (mob/user, list/extra_data)

COMSIG_EIGENSTATE_ACTIVATE

Eigenstasium From base of [/datum/controller/subsystem/eigenstates/proc/use_eigenlinked_atom]: (var/target)

COMSIG_END_BIBLE_CHAIN

stops the bible chain from continuing. When all of the effects of the bible smacking have been moved to a signal we can kill this

COMSIG_FIREALARM_ON_TRIGGER

from /obj/machinery/fire_alarm/reset(), /obj/machinery/fire_alarm/alarm(): (status)

COMSIG_FIRE_CASING

sent to targets during the process_hit proc of projectiles

COMSIG_GLOB_CURSED_SLOT_MACHINE_WON

from /obj/structure/cursed_slot_machine/determine_victor() when someone finally wins.

COMSIG_GRENADE_ARMED

called in /obj/item/grenade/proc/arm_grenade() and /obj/item/grenade/gas_crystal/arm_grenade(): (det_time, delayoverride)

COMSIG_GRENADE_DETONATE

called in /obj/item/grenade/proc/detonate(): (lanced_by)

COMSIG_GUN_BEING_SAWNOFF

called in /obj/item/gun/ballistic/sawoff(mob/user, obj/item/saw, handle_modifications) : (mob/user)

COMSIG_GUN_CHAMBER_PROCESSED

called in /obj/item/gun/process_chamber (src)

COMSIG_GUN_FIRED

called in /obj/item/gun/process_fire (user, target, params, zone_override)

COMSIG_GUN_PIN_INSERTED

called in /obj/item/firing_pin/proc/gun_insert(mob/living/user, obj/item/gun/new_gun): (obj/item/firing_pin/pin, mob/living/user)

COMSIG_GUN_PIN_REMOVED

called in /obj/item/firing_pin/proc/gun_remove(mob/living/user): (obj/item/firing_pin/pin, mob/living/user)

COMSIG_GUN_TRY_FIRE

called in /obj/item/gun/fire_gun (user, target, flag, params)

COMSIG_ID_CARD_NTPAY_MONEY_RECEIVED

from /datum/computer_file/program/nt_pay/_pay(), sent to every physical card of a bank account: (computer, money_received)

COMSIG_IMPLANT_ACTIVATED

from base of /obj/item/implant/proc/activate(): ()

COMSIG_IMPLANT_EXISTING_UPLINK

called on implants being implanted into someone with an uplink implant: (datum/component/uplink)

COMSIG_IMPLANT_IMPLANTED

called on implants, after a successful implantation: (mob/living/target, mob/user, silent, force)

COMSIG_IMPLANT_IMPLANTING

from base of /obj/item/implant/proc/implant(): (list/args)

COMSIG_IMPLANT_OTHER

called on already installed implants when a new one is being added in /obj/item/implant/proc/implant(): (list/args, obj/item/implant/new_implant)

COMSIG_IMPLANT_REMOVED

called on implants, after an implant has been removed: (mob/living/source, silent, special)

COMSIG_ITEM_AFTERATTACK

from base of obj/item/attack(): (atom/target, mob/user, proximity_flag, list/modifiers)

COMSIG_ITEM_APPLY_FANTASY_BONUSES

from base of obj/item/apply_fantasy_bonuses(): (bonus)

COMSIG_ITEM_ATTACK

from base of /obj/item/attack(): (mob/living, mob/living, list/modifiers, list/attack_modifiers)

COMSIG_ITEM_ATTACK_ANIMATION

Sent from /obj/item/proc/animate_attack() : (atom/movable/attacker, atom/attacked_atom, animation_type, list/image_override, list/animation_override, list/angle_override)

COMSIG_ITEM_ATTACK_ATOM

from base of obj/item/attack_atom(): (/atom, /mob, list/modifiers)

COMSIG_ITEM_ATTACK_EFFECT

sent from obj/effect/attackby(): (/obj/effect/hit_effect, /mob/living/attacker, list/modifiers)

COMSIG_ITEM_ATTACK_SECONDARY

From base of [/obj/item/proc/attack_secondary()]: (atom/target, mob/user, list/modifiers, list/attack_modifiers)

COMSIG_ITEM_ATTACK_SELF

from base of obj/item/attack_self(): (/mob)

COMSIG_ITEM_ATTACK_ZONE

from base of mob/living/carbon/attacked_by(): (mob/living/carbon/target, mob/living/user, hit_zone)

COMSIG_ITEM_ATTEMPT_TC_REIMBURSE

Called on component/uplink/OnAttackBy(..)

COMSIG_ITEM_CAN_DISARM_ATTACK

from base of datum/element/disarm_attack/secondary_attack(), used to prevent shoving: (victim, user, send_message)

COMSIG_ITEM_DRIED

Called when an item is dried by a drying rack

COMSIG_ITEM_DROPPED

from base of obj/item/dropped(): (mob/user)

COMSIG_ITEM_DROPPED_FROM_PROSTHETIC

Item has been unequipped from a mob as a prosthetic limb

COMSIG_ITEM_EMBEDDED

from base of datum/embedding/proc/embed_into(): (mob/living/carbon/victim, obj/item/bodypart/limb)

COMSIG_ITEM_EQUIPPED

from base of obj/item/equipped(): (mob/equipper, slot)

COMSIG_ITEM_EQUIPPED_AS_OUTFIT

from base of obj/item/on_outfit_equip(): (mob/equipper, visuals_only, slot)

COMSIG_ITEM_EXPORTED

called when an item is sold by the exports subsystem

COMSIG_ITEM_FAILED_EMBED

from base of datum/embedding/proc/failed_embed(): (mob/living/carbon/victim, hit_zone)

COMSIG_ITEM_GET_SEPARATE_WORN_OVERLAYS

Called by /obj/item/proc/separate_worn_overlays(list/overlays, mutable_appearance/standing, mutable_appearance/draw_target, isinhands, icon_file)

COMSIG_ITEM_GET_STRIPPABLE_ALT_ACTIONS

From base of datum/strippable_item/get_alternate_actions(): (atom/owner, mob/user, list/alt_actions) As a side note, make sure the strippable item datum (the slot) in question doesn't have too many alternate actions already, as only up to three are supported at a time (as of september 2025), though, so far only the jumpsuit slot uses all three slots.

Also make sure to code the alt action and add it to the StripMenu.tsx interface

COMSIG_ITEM_GET_WORN_OVERLAYS

Called by /obj/item/proc/worn_overlays(list/overlays, mutable_appearance/standing, isinhands, icon_file)

COMSIG_ITEM_HIT_REACT

from base of obj/item/hit_reaction(): (owner, hitby, attack_text, final_block_chance, damage, attack_type, damage_type)

COMSIG_ITEM_OFFERING

Called when an item is being offered, from [/obj/item/proc/on_offered(mob/living/offerer)]

COMSIG_ITEM_OFFER_TAKEN

Called when an someone tries accepting an offered item, from [/obj/item/proc/on_offer_taken(mob/living/offerer, mob/living/taker)]

COMSIG_ITEM_ON_COMPOSTED

from /obj/machinery/hydroponics/attackby(obj/item/O, mob/user, list/modifiers, list/attack_modifiers) when an object is used as compost: (mob/user)

COMSIG_ITEM_ON_GRIND

from base of obj/item/on_grind(): ())

COMSIG_ITEM_ON_JUICE

from base of obj/item/on_juice(): ()

COMSIG_ITEM_PICKUP

from base of obj/item/pickup(): (/mob/taker)

COMSIG_ITEM_POST_EQUIPPED

From base of obj/item/on_equipped() (mob/equipped, slot)

COMSIG_ITEM_POST_UNEQUIP

called on /obj/item AFTER unequip from base of mob/proc/doUnEquip: (force, atom/newloc, no_move, invdrop, silent)

COMSIG_ITEM_POST_USED_AS_PROSTHETIC

After an item has been equipped as a prosthetic limb

COMSIG_ITEM_PRE_ATTACK

from base of obj/item/pre_attack(): (atom/target, mob/user, list/modifiers, list/attack_modifiers)

COMSIG_ITEM_PRE_ATTACK_SECONDARY

From base of [/obj/item/proc/pre_attack_secondary()]: (atom/target, mob/user, list/modifiers, list/attack_modifiers)

COMSIG_ITEM_PRE_EXPORT

called before an item is sold by the exports system.

COMSIG_ITEM_PRE_UNEQUIP

called on /obj/item before unequip from base of mob/proc/doUnEquip: (force, atom/newloc, no_move, invdrop, silent)

COMSIG_ITEM_PRE_USED_AS_PROSTHETIC

Before an item has been equipped as a prosthetic limb

COMSIG_ITEM_RECHARGED

Called when an item gets recharged by the ammo powerup

COMSIG_ITEM_REMOVE_FANTASY_BONUSES

from base of obj/item/remove_fantasy_bonuses(): (bonus)

COMSIG_ITEM_SHARPEN_ACT

from base of item/sharpener/attackby(): (amount, max)

COMSIG_ITEM_SPLIT_PROFIT

called when getting the item's exact ratio for cargo's profit.

COMSIG_ITEM_SPLIT_PROFIT_DRY

called when getting the item's exact ratio for cargo's profit, without selling the item.

COMSIG_ITEM_STORED

from base of datum/storage/handle_enter(): (datum/storage/storage)

COMSIG_ITEM_STRIPPABLE_ALT_ACTION

From base of datum/strippable_item/perform_alternate_action(): (atom/owner, mob/user, action_key)

COMSIG_ITEM_TALK_INTO

called from base of /obj/item/proc/talk_into(): (atom/movable/speaker, message, channel, list/spans, language, list/message_mods)

COMSIG_ITEM_TC_REIMBURSED

Called after an item is refunded

COMSIG_ITEM_UI_ACTION_CLICK

Sebt from obj/item/ui_action_click(): (mob/user, datum/action)

COMSIG_ITEM_UI_ACTION_SLOT_CHECKED

Sent from obj/item/item_action_slot_check(): (mob/user, datum/action, slot)

COMSIG_ITEM_UNEMBEDDED

from base of datum/embedding/proc/remove_embedding(): (mob/living/carbon/victim, obj/item/bodypart/limb)

COMSIG_ITEM_UNSTORED

from base of datum/storage/handle_exit(): (datum/storage/storage)

COMSIG_ITEM_UNWRAPPED

called when a wrapped up item is opened by hand

COMSIG_ITEM_WEIGHT_CLASS_CHANGED

Sent from /obj/item/update_weight_class(). (old_w_class, new_w_class)

COMSIG_IV_ATTACH

from obj/machinery/iv_drip/IV_attach(target, usr) : (attachee)

COMSIG_IV_DETACH

from obj/machinery/iv_drip/IV_detach() : (detachee)

COMSIG_LIGHT_SWITCH_SET

from /obj/machinery/light_switch/set_lights(), sent to every switch in the area: (status)

COMSIG_MACHINERY_BROKEN

from /obj/machinery/atom_break(damage_flag): (damage_flag)

COMSIG_MACHINERY_DEFAULT_ROTATE_WRENCH

from /obj/machinery/default_change_direction_wrench: (mob/user, obj/item/wrench)

COMSIG_MACHINERY_DESTRUCTIVE_SCAN

from /obj/machinery/destructive_scanner/proc/open(aggressive): Runs when the destructive scanner scans a group of objects. (list/scanned_atoms)

COMSIG_MACHINERY_POWER_LOST

from base power_change() when power is lost

COMSIG_MACHINERY_POWER_RESTORED

from base power_change() when power is restored

COMSIG_MACHINERY_REFRESH_PARTS

from /obj/machinery/RefreshParts: ()

COMSIG_MACHINERY_SET_OCCUPANT

from /obj/machinery/set_occupant(atom/movable/O): (new_occupant)

COMSIG_MACHINERY_START_PROCESSING_AIR

from /datum/controller/subsystem/air/proc/start_processing_machine: ()

COMSIG_MACHINERY_STOP_PROCESSING_AIR

from /datum/controller/subsystem/air/proc/stop_processing_machine: ()

COMSIG_MECHA_ACTION_TRIGGER

sent from mecha action buttons to the mecha they're linked to

COMSIG_MECHA_DRILL_MOB

sent when you are able to drill through a mob

COMSIG_MECHA_EQUIPMENT_ATTACHED

sent if you attach equipment to mecha

COMSIG_MECHA_EQUIPMENT_CLICK

sent from clicking while you have equipment selected.

COMSIG_MECHA_EQUIPMENT_DETACHED

sent if you detach equipment to mecha

COMSIG_MECHA_MELEE_CLICK

sent from clicking while you have no equipment selected. Sent before cooldown and adjacency checks, so you can use this for infinite range things if you want.

COMSIG_MINDSHIELD_IMPLANTED

called once a mindshield is implanted: (mob/user)

COMSIG_MINE_TRIGGERED

from /obj/effect/mine/proc/triggermine:

COMSIG_MMI_SET_BRAINMOB

from base of /obj/item/mmi/set_brainmob(): (mob/living/brain/new_brainmob)

COMSIG_MOB_EQUIPPED_ITEM

A mob has just equipped an item. Called on /mob from base of /obj/item/equipped(): (/obj/item/equipped_item, slot)

COMSIG_MOB_FIRED_GUN

called in /obj/item/gun/process_fire (src, target, params, zone_override, bonus_spread_values)

COMSIG_MOB_GRENADE_ARMED

called in /obj/item/grenade/gas_crystal/arm_grenade(): (armed_by, nade, det_time, delayoverride)

COMSIG_MOB_TRYING_TO_FIRE_GUN

called in /obj/item/gun/try_fire_gun (user, src, target, flag, params)

COMSIG_MOB_UNEQUIPPED_ITEM

A mob has just unequipped an item.

COMSIG_MULTITOOL_REMOVE_BUFFER

From /obj/item/multitool/remove_buffer(): (buffer)

COMSIG_OBJ_ATTEMPT_CHARGE

called when the payment component tries to charge an account.

COMSIG_OBJ_ATTEMPT_CHARGE_CHANGE

Called when a payment component changes value

COMSIG_OBJ_DECONSTRUCT

from base of obj/deconstruct(): (disassembled)

COMSIG_OBJ_DEFAULT_UNFASTEN_WRENCH

from base of code/game/machinery

COMSIG_OBJ_HIDE

from base of /turf/proc/levelupdate(). (intact) true to hide and false to unhide

COMSIG_OBJ_PAINTED

from /obj/item/toy/crayon/spraycan/use_on: (user, spraycan, color_is_dark)

COMSIG_OBJ_RESKIN

from /obj/obj_reskin: (mob/user, skin)

COMSIG_OBJ_UNFREEZE

from /obj/proc/unfreeze()

COMSIG_PEN_ROTATED

called after rotation in /obj/item/pen/attack_self(): (rotation, mob/living/carbon/user)

COMSIG_PLUNGER_ACT

from /obj/plunger_act when an object is being plungered

COMSIG_PRE_MINDSHIELD_IMPLANT

called as a mindshield is implanted: (mob/user)

COMSIG_PROJECTILE_BEFORE_FIRE

from base of /obj/projectile/proc/fire(): (obj/projectile, atom/original_target)

COMSIG_PROJECTILE_BEFORE_MOVE

from the base of /obj/projectile/process(): ()

COMSIG_PROJECTILE_FIRE

from the base of /obj/projectile/proc/fire(): ()

COMSIG_PROJECTILE_FIRER_BEFORE_FIRE

from base of /obj/projectile/proc/fire(): (obj/projectile, atom/firer, atom/original_target)

COMSIG_PROJECTILE_MOVE_PROCESS_STEP

from /obj/projectile/process_movement(): ()

COMSIG_PROJECTILE_ON_EMBEDDED

sent to the projectile when successfully embedding into something: (new_item, victim)

COMSIG_PROJECTILE_ON_HIT

from base of /obj/projectile/proc/on_hit(): (atom/movable/firer, atom/target, angle, hit_limb, blocked, pierce_hit)

COMSIG_PROJECTILE_ON_SPAWN_DROP

sent to the projectile after an item is spawned by the projectile_drop element: (new_item)

COMSIG_PROJECTILE_ON_SPAWN_EMBEDDED

sent to the projectile when spawning the item (shrapnel) that may be embedded: (new_item, victim)

COMSIG_PROJECTILE_PREHIT

sent to targets during the process_hit proc of projectiles

COMSIG_PROJECTILE_RANGE

from the base of /obj/projectile/reduce_range(): ()

COMSIG_PROJECTILE_RANGE_OUT

from the base of /obj/projectile/on_range(): ()

COMSIG_PROJECTILE_SELF_ON_HIT

from base of /obj/projectile/proc/on_hit(), like COMSIG_PROJECTILE_ON_HIT but on the projectile itself and with the hit limb (if any): (atom/movable/firer, atom/target, angle, hit_limb, blocked, pierce_hit)

COMSIG_PROJECTILE_SELF_PREHIT

sent to self during the process_hit proc of projectiles

COMSIG_RADIO_NEW_FREQUENCY

called from base of /obj/item/radio/proc/set_frequency(): (list/args)

COMSIG_RADIO_NEW_MESSAGE

called from base of /obj/item/radio/talk_into(): (atom/movable/M, message, channel)

COMSIG_RADIO_RECEIVE_MESSAGE

called from base of /obj/item/radio/proc/on_receive_messgae(): (list/data)

COMSIG_SHOES_STEP_ACTION

from [/mob/living/carbon/human/Move]: ()

COMSIG_SHUTTLE_NAV_COMPUTER_IMAGE_REQUESTED

from /obj/machinery/computer/camera_advanced/shuttle_docker/gatherNavComputerOverlays() : (list/images_out)

COMSIG_SKILLCHIP_IMPLANTED

Sent from /obj/item/skillchip/on_implant()

COMSIG_SKILLCHIP_REMOVED

Sent from /obj/item/skillchip/on_remove()

COMSIG_SPEED_POTION_APPLIED

from base of /obj/item/slimepotion/speed/interact_with_atom(): (obj/target, /obj/src, mob/user)

COMSIG_STACK_CAN_MERGE

from /obj/item/stack/proc/can_merge: (obj/item/stack/merge_with, in_hand)

COMSIG_SUPERMATTER_CONSUMED

from /datum/component/supermatter_crystal/proc/consume() called on the thing consumed, passes the thing which consumed it

COMSIG_SUPERMATTER_DELAM_ALARM

from /obj/machinery/power/supermatter_crystal/process_atmos(); when the SM sounds an audible alarm

COMSIG_SUPPLYPOD_LANDED

from [/obj/structure/closet/supplypod/proc/preOpen]:

COMSIG_TABLET_CHANGE_ID

called on pda when the user changes the ringtone: (mob/living/user, new_ringtone)

COMSIG_TELEPORTER_NEW_TARGET

from /obj/machinery/computer/teleporter/proc/set_target(target, old_target)

COMSIG_TOOL_IN_USE

from base of /obj/item/proc/tool_check_callback: (mob/living/user)

COMSIG_TOOL_START_USE

from base of /obj/item/proc/tool_start_check: (mob/living/user)

COMSIG_TRAITOR_ITEM_USED

Called when a holoparasite/guardiancreator is used.

COMSIG_TRY_USE_MACHINE

from /obj/machinery/can_interact(mob/user): Called on user when attempting to interact with a machine (obj/machinery/machine)

COMSIG_UNDERTILE_UPDATED

from /datum/element/undertile/hide()

COMSIG_USER_PRE_ITEM_ATTACK

from base of obj/item/pre_attack(): (obj/item/weapon, atom/target, list/modifiers, list/attack_modifiers)

COMSIG_USER_PRE_ITEM_ATTACK_SECONDARY

from base of obj/item/pre_attack_secondary(): (obj/item/weapon, atom/target, list/modifiers, list/attack_modifiers)

COMSIG_VALVE_SET_OPEN

from /obj/machinery/atmospherics/components/binary/valve/toggle(): (on)

COMSIG_VIM_BUZZ_USED

from /datum/action/vehicle/sealed/noise/buzz/Trigger(): ()

COMSIG_VIM_CHIME_USED

from /datum/action/vehicle/sealed/noise/chime/Trigger(): ()

COMSIG_VIM_HEADLIGHTS_TOGGLED

from /datum/action/vehicle/sealed/headlights/vim/Trigger(): (headlights_on)

COMSIG_VIRTUAL_PET_LEVEL_UP

from /datum/computer_file/program/virtual_pet/proc/handle_level_up

COMSIG_VIRTUAL_PET_RECALLED

from /datum/computer_file/program/virtual_pet/proc/recall_pet

COMSIG_VIRTUAL_PET_SUMMONED

from /datum/computer_file/program/virtual_pet/proc/release_pet

COMSIG_WINGS_CLOSED

Sent from /obj/item/organ/wings/functional/proc/close_wings(): (mob/living/carbon/owner)

COMSIG_WINGS_OPENED

Sent from /obj/item/organ/wings/functional/proc/open_wings(): (mob/living/carbon/owner)

SLOT_MACHINE_USE_CANCEL

we've used up the number of times we may use this slot machine. womp womp.

SLOT_MACHINE_USE_POSTPONE

we haven't used up all our attempts to gamble away our life but we should chill for a few seconds

STOP_BUMP

Return to stop the door opening on bump.