Files
Paradise/code/datums/elements/rust_element.dm
2025-07-27 20:52:39 +00:00

123 lines
4.5 KiB
Plaintext

/**
* Adding this element to an atom will have it automatically render an overlay.
*/
/datum/element/rust
element_flags = ELEMENT_BESPOKE | ELEMENT_DETACH_ON_HOST_DESTROY // Detach for turfs
argument_hash_start_idx = 2
/// The rust image itself, since the icon and icon state are only used as an argument
var/image/rust_overlay
/datum/element/rust/Attach(atom/target, rust_icon = 'icons/effects/rust_overlay.dmi', rust_icon_state = "rust_default")
. = ..()
if(!isatom(target))
return ELEMENT_INCOMPATIBLE
rust_overlay = image(rust_icon, "rust[rand(1, 6)]")
ADD_TRAIT(target, TRAIT_RUSTY, "rusted_turf")
RegisterSignal(target, COMSIG_ATOM_UPDATE_OVERLAYS, PROC_REF(apply_rust_overlay))
RegisterSignal(target, COMSIG_PARENT_EXAMINE, PROC_REF(handle_examine))
RegisterSignal(target, COMSIG_INTERACT_TARGET, PROC_REF(on_interaction))
RegisterSignal(target, COMSIG_TOOL_ATTACK, PROC_REF(welder_tool_act))
// Unfortunately registering with parent sometimes doesn't cause an overlay update
target.update_appearance()
/datum/element/rust/Detach(atom/source)
. = ..()
UnregisterSignal(source, COMSIG_ATOM_UPDATE_OVERLAYS)
UnregisterSignal(source, COMSIG_PARENT_EXAMINE)
UnregisterSignal(source, COMSIG_TOOL_ATTACK)
UnregisterSignal(source, COMSIG_INTERACT_TARGET)
REMOVE_TRAIT(source, TRAIT_RUSTY, "rusted_turf")
source.cut_overlays()
source.update_appearance()
/datum/element/rust/proc/handle_examine(datum/source, mob/user, list/examine_list)
SIGNAL_HANDLER //COMSIG_PARENT_EXAMINE
examine_list += "<span class='notice'>[source] is very rusty, you could probably <b>burn</b> it off.</span>"
/datum/element/rust/proc/apply_rust_overlay(atom/parent_atom, list/overlays)
SIGNAL_HANDLER //COMSIG_ATOM_UPDATE_OVERLAYS
if(rust_overlay)
overlays += rust_overlay
/// Because do_after sleeps we register the signal here and defer via an async call
/datum/element/rust/proc/welder_tool_act(atom/source, obj/item/item, mob/user)
SIGNAL_HANDLER // COMSIG_TOOL_ATTACK
INVOKE_ASYNC(src, PROC_REF(handle_tool_use), source, item, user)
return COMPONENT_CANCEL_TOOLACT
/// We call this from secondary_tool_act because we sleep with do_after
/datum/element/rust/proc/handle_tool_use(atom/source, obj/item/item, mob/user)
switch(item.tool_behaviour)
if(TOOL_WELDER)
if(!item.tool_start_check(source, user, amount=1))
return
to_chat(user, "<span class='notice'>You start burning off the rust...</span>")
if(!item.use_tool(source, user, 5 SECONDS, volume = item.tool_volume))
return
to_chat(user, "<span class='notice'>You burn off the rust!</span>")
Detach(source)
return
/// Prevents placing floor tiles on rusted turf
/datum/element/rust/proc/on_interaction(datum/source, mob/living/user, obj/item/tool, list/modifiers)
SIGNAL_HANDLER // COMSIG_INTERACT_TARGET
if(istype(tool, /obj/item/stack/tile) || istype(tool, /obj/item/stack/rods) || istype(tool, /obj/item/rcd))
to_chat(user, "<span class='warning'>[source] is too rusted to build on!</span>")
return ITEM_INTERACT_COMPLETE
/// For rust applied by heretics (if that ever happens) / revenants
/datum/element/rust/heretic
/datum/element/rust/heretic/Attach(atom/target, rust_icon, rust_icon_state)
. = ..()
if(. == ELEMENT_INCOMPATIBLE)
return .
RegisterSignal(target, COMSIG_ATOM_ENTERED, PROC_REF(on_entered))
RegisterSignal(target, COMSIG_ATOM_EXITED, PROC_REF(on_exited))
/datum/element/rust/heretic/Detach(atom/source)
. = ..()
UnregisterSignal(source, COMSIG_ATOM_ENTERED)
UnregisterSignal(source, COMSIG_ATOM_EXITED)
for(var/obj/effect/glowing_rune/rune_to_remove in source)
qdel(rune_to_remove)
for(var/mob/living/victim in source)
victim.remove_status_effect(STATUS_EFFECT_RUST_CORRUPTION)
/datum/element/rust/heretic/proc/on_entered(turf/source, atom/movable/entered, ...)
SIGNAL_HANDLER
if(!isliving(entered))
return
var/mob/living/victim = entered
if(istype(victim, /mob/living/simple_animal/revenant))
return
victim.apply_status_effect(STATUS_EFFECT_RUST_CORRUPTION)
/datum/element/rust/heretic/proc/on_exited(turf/source, atom/movable/gone)
SIGNAL_HANDLER
if(!isliving(gone))
return
var/mob/living/leaver = gone
leaver.remove_status_effect(STATUS_EFFECT_RUST_CORRUPTION)
// Small visual effect imparted onto rusted things by revenants.
/obj/effect/glowing_rune
icon = 'icons/effects/eldritch.dmi'
icon_state = "small_rune_1"
plane = FLOOR_PLANE
layer = SIGIL_LAYER
mouse_opacity = MOUSE_OPACITY_TRANSPARENT
/obj/effect/glowing_rune/Initialize(mapload)
. = ..()
pixel_y = rand(-6, 6)
pixel_x = rand(-6, 6)
icon_state = "small_rune_[rand(1, 12)]"
update_appearance()