Files
Bubberstation/code/datums/components/dart_insert.dm
Ghom 11d82b7995 You can now interact with held mobs beside wearing them (feat: "minor" melee attack chain cleanup) (#90080)
People can now pet held mothroaches and pugs if they want to, or use
items on them, hopefully without causing many issues. After all, it only
took about a couple dozen lines of code to make...

...Oh, did the 527 files changed or the 850~ lines added/removed perhaps
catch your eye? Made you wonder if I accidentally pushed the wrong
branch? or skewed something up big time? Well, nuh uh. I just happen to
be fed up with the melee attack chain still using stringized params
instead of an array/list. It was frankly revolting to see how I'd have
had to otherwise call `list2params` for what I'm trying to accomplish
here, and make this PR another tessera to the immense stupidity of our
attack chain procs calling `params2list` over and over and over instead
of just using that one call instance from `ClickOn` as an argument. It's
2025, honey, wake up!

I also tried to replace some of those single letter vars/args but there
are just way too many of them.

Improving old code. And I want to be able to pet mobroaches while
holding them too.

🆑
qol: You can now interact with held mobs in more ways beside wearing
them.
/🆑
2025-04-29 18:22:44 -06:00

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/**
* Component for allowing items to be inserted into foam darts.
* The parent can register signal handlers for `COMSIG_DART_INSERT_ADDED`,
* `COMSIG_DART_INSERT_REMOVED` to define custom behavior for when the item
* is added to/removed from a dart, and `COMSIG_DART_INSERT_GET_VAR_MODIFIERS`
* to define the modifications the item makes to the vars of the fired projectile.
*/
/datum/component/dart_insert
/// List for tracking the modifications this component has made to the vars of the containing projectile
var/list/var_modifiers
/// A reference to the ammo casing this component's parent was inserted into
var/obj/item/ammo_casing/holder_casing
/// A reference to the projectile this component's parent was inserted into
var/obj/projectile/holder_projectile
/// The icon file used for the overlay applied over the containing ammo casing
var/casing_overlay_icon
/// The icon state used for the overlay applied over the containing ammo casing
var/casing_overlay_icon_state
/// The icon file used for the overlay applied over the containing projectile
var/projectile_overlay_icon
/// The icon state used for the overlay applied over the containing projectile
var/projectile_overlay_icon_state
/// Optional callback to invoke when acquiring projectile var modifiers
var/datum/callback/modifier_getter
/datum/component/dart_insert/Initialize(_casing_overlay_icon, _casing_overlay_icon_state, _projectile_overlay_icon, _projectile_overlay_icon_state, datum/callback/_modifier_getter)
if(!isitem(parent))
return COMPONENT_INCOMPATIBLE
casing_overlay_icon = _casing_overlay_icon
casing_overlay_icon_state = _casing_overlay_icon_state
projectile_overlay_icon = _projectile_overlay_icon
projectile_overlay_icon_state = _projectile_overlay_icon_state
modifier_getter = _modifier_getter
/datum/component/dart_insert/RegisterWithParent()
. = ..()
RegisterSignal(parent, COMSIG_ITEM_PRE_ATTACK, PROC_REF(on_preattack))
RegisterSignal(parent, COMSIG_OBJ_RESKIN, PROC_REF(on_reskin))
/datum/component/dart_insert/UnregisterFromParent()
. = ..()
var/obj/item/parent_item = parent
var/parent_loc = parent_item.loc
if(parent_loc && (parent_loc == holder_casing || parent_loc == holder_projectile))
parent_item.forceMove(get_turf(parent_item))
remove_from_dart(holder_casing, holder_projectile)
UnregisterSignal(parent, COMSIG_ITEM_PRE_ATTACK)
/datum/component/dart_insert/proc/on_preattack(datum/source, atom/target, mob/user, list/modifiers)
SIGNAL_HANDLER
var/obj/item/ammo_casing/foam_dart/dart = target
if(!istype(dart))
return
if(!dart.modified)
to_chat(user, span_warning("The safety cap prevents you from inserting [parent] into [dart]."))
return COMPONENT_CANCEL_ATTACK_CHAIN
if(HAS_TRAIT(dart, TRAIT_DART_HAS_INSERT))
to_chat(user, span_warning("There's already something in [dart]."))
return COMPONENT_CANCEL_ATTACK_CHAIN
add_to_dart(dart, user)
return COMPONENT_CANCEL_ATTACK_CHAIN
/datum/component/dart_insert/proc/on_reskin(datum/source, mob/user, skin)
SIGNAL_HANDLER
SEND_SIGNAL(parent, COMSIG_DART_INSERT_PARENT_RESKINNED)
/datum/component/dart_insert/proc/add_to_dart(obj/item/ammo_casing/dart, mob/user)
var/obj/projectile/dart_projectile = dart.loaded_projectile
var/obj/item/parent_item = parent
if(user)
if(!user.transferItemToLoc(parent_item, dart_projectile))
return
to_chat(user, span_notice("You insert [parent_item] into [dart]."))
else
parent_item.forceMove(dart_projectile)
ADD_TRAIT(dart, TRAIT_DART_HAS_INSERT, REF(src))
RegisterSignal(dart, COMSIG_ITEM_ATTACK_SELF, PROC_REF(on_dart_attack_self))
RegisterSignal(dart, COMSIG_ATOM_EXAMINE_MORE, PROC_REF(on_dart_examine_more))
RegisterSignals(parent, list(COMSIG_QDELETING, COMSIG_MOVABLE_MOVED), PROC_REF(on_leave_dart))
RegisterSignal(dart, COMSIG_ATOM_UPDATE_OVERLAYS, PROC_REF(on_casing_update_overlays))
RegisterSignal(dart_projectile, COMSIG_ATOM_UPDATE_OVERLAYS, PROC_REF(on_projectile_update_overlays))
RegisterSignals(dart_projectile, list(COMSIG_PROJECTILE_ON_SPAWN_DROP, COMSIG_PROJECTILE_ON_SPAWN_EMBEDDED), PROC_REF(on_spawn_drop))
apply_var_modifiers(dart_projectile)
dart.harmful = dart_projectile.damage > 0 || dart_projectile.wound_bonus > 0 || dart_projectile.bare_wound_bonus > 0
SEND_SIGNAL(parent, COMSIG_DART_INSERT_ADDED, dart)
dart.update_appearance()
dart_projectile.update_appearance()
holder_casing = dart
holder_projectile = dart_projectile
/datum/component/dart_insert/proc/remove_from_dart(obj/item/ammo_casing/dart, obj/projectile/projectile, mob/user)
holder_casing = null
holder_projectile = null
if(istype(dart))
UnregisterSignal(dart, list(COMSIG_ITEM_ATTACK_SELF, COMSIG_ATOM_EXAMINE_MORE, COMSIG_ATOM_UPDATE_OVERLAYS))
REMOVE_TRAIT(dart, TRAIT_DART_HAS_INSERT, REF(src))
dart.update_appearance()
if(istype(projectile))
remove_var_modifiers(projectile)
UnregisterSignal(projectile, list(COMSIG_PROJECTILE_ON_SPAWN_DROP, COMSIG_PROJECTILE_ON_SPAWN_EMBEDDED, COMSIG_ATOM_UPDATE_OVERLAYS))
if(dart?.loaded_projectile == projectile)
dart.harmful = projectile.damage > 0 || projectile.wound_bonus > 0 || projectile.bare_wound_bonus > 0
projectile.update_appearance()
SEND_SIGNAL(parent, COMSIG_DART_INSERT_REMOVED, dart, projectile, user)
UnregisterSignal(parent, list(COMSIG_QDELETING, COMSIG_MOVABLE_MOVED))
if(user)
INVOKE_ASYNC(user, TYPE_PROC_REF(/mob, put_in_hands), parent)
to_chat(user, span_notice("You remove [parent] from [dart]."))
/datum/component/dart_insert/proc/on_dart_attack_self(datum/source, mob/user)
SIGNAL_HANDLER
remove_from_dart(holder_casing, holder_projectile, user)
/datum/component/dart_insert/proc/on_dart_examine_more(datum/source, mob/user, list/examine_list)
var/obj/item/parent_item = parent
examine_list += span_notice("You can see a [parent_item.name] inserted into it.")
/datum/component/dart_insert/proc/on_leave_dart()
SIGNAL_HANDLER
remove_from_dart(holder_casing, holder_projectile)
/datum/component/dart_insert/proc/on_spawn_drop(datum/source, obj/item/ammo_casing/new_casing)
SIGNAL_HANDLER
UnregisterSignal(parent, list(COMSIG_QDELETING, COMSIG_MOVABLE_MOVED))
add_to_dart(new_casing)
/datum/component/dart_insert/proc/on_casing_update_overlays(datum/source, list/new_overlays)
SIGNAL_HANDLER
new_overlays += mutable_appearance(casing_overlay_icon, casing_overlay_icon_state)
/datum/component/dart_insert/proc/on_projectile_update_overlays(datum/source, list/new_overlays)
SIGNAL_HANDLER
new_overlays += mutable_appearance(projectile_overlay_icon, projectile_overlay_icon_state)
/datum/component/dart_insert/proc/apply_var_modifiers(obj/projectile/projectile)
if (!modifier_getter)
return
var_modifiers = modifier_getter.Invoke(projectile)
projectile.damage += var_modifiers["damage"]
projectile.speed += var_modifiers["speed"]
projectile.armour_penetration += var_modifiers["armour_penetration"]
projectile.wound_bonus += var_modifiers["wound_bonus"]
projectile.bare_wound_bonus += var_modifiers["bare_wound_bonus"]
projectile.demolition_mod += var_modifiers["demolition_mod"]
if(var_modifiers["embedding"])
projectile.set_embed(var_modifiers["embedding"])
/datum/component/dart_insert/proc/remove_var_modifiers(obj/projectile/projectile)
projectile.damage -= var_modifiers["damage"]
projectile.speed -= var_modifiers["speed"]
projectile.armour_penetration -= var_modifiers["armour_penetration"]
projectile.wound_bonus -= var_modifiers["wound_bonus"]
projectile.bare_wound_bonus -= var_modifiers["bare_wound_bonus"]
projectile.demolition_mod -= var_modifiers["demolition_mod"]
if(var_modifiers["embedding"])
projectile.set_embed(initial(projectile.embed_type))
var_modifiers.Cut()