[MIRROR] Countdown effect + couple of components (#12093)

Co-authored-by: Guti <32563288+TheCaramelion@users.noreply.github.com>
Co-authored-by: Cameron Lennox <killer65311@gmail.com>

code/datums/components/connect_containers.dm

@@ -1,6 +1,6 @@
 /// This component behaves similar to connect_loc_behalf, but it's nested and hooks a signal onto all MOVABLES containing this atom.
 /datum/component/connect_containers
-	dupe_mode = COMPONENT_DUPE_UNIQUE_PASSARGS
+	dupe_mode = COMPONENT_DUPE_SELECTIVE
 
 	/// An assoc list of signal -> procpath to register to the loc this object is on.
 	var/list/connections
@@ -22,18 +22,18 @@
 	set_tracked(null)
 	return ..()
 
-/datum/component/connect_containers/InheritComponent(datum/component/component, original, atom/movable/tracked, list/connections)
+/datum/component/connect_containers/CheckDupeComponent(datum/component/connect_containers/new_component, atom/movable/tracked, list/connections)
 	// Not equivalent. Checks if they are not the same list via shallow comparison.
 	if(!compare_list(src.connections, connections))
-		stack_trace("connect_containers component attached to [parent] tried to inherit another connect_containers component with different connections")
-		return
+		return FALSE // Different set of connections.
 	if(src.tracked != tracked)
-		set_tracked(tracked)
+		set_tracked(tracked) // Different target for the same set of connections, track the new target.
+	return TRUE // No new component.
 
 /datum/component/connect_containers/proc/set_tracked(atom/movable/new_tracked)
 	if(tracked)
 		UnregisterSignal(tracked, list(COMSIG_MOVABLE_MOVED, COMSIG_QDELETING))
-		unregister_signals(tracked.loc)
+		unregister_signals(tracked)
 	tracked = new_tracked
 	if(!tracked)
 		return

code/datums/components/effect_remover.dm

@@ -0,0 +1,66 @@
+/datum/component/effect_remover
+	dupe_mode = COMPONENT_DUPE_ALLOWED
+	/// Line sent to the user on successful removal.
+	var/success_feedback
+	/// Line forcesaid by the user on successful removal.
+	var/success_forcesay
+	/// Callback invoked with removal is done.
+	var/datum/callback/on_clear_callback
+	/// A typecache of all effects we can clear with our item.
+	var/list/obj/effect/effects_we_clear
+	/// If above 0, how long it takes while standing still to remove the effect.
+	var/time_to_remove = 0 SECONDS
+
+/datum/component/effect_remover/Initialize(success_forcesay, success_feedback, on_clear_callback, effects_we_clear, time_to_remove)
+	. = ..()
+
+	if(!isitem(parent))
+		return COMPONENT_INCOMPATIBLE
+
+	if(!effects_we_clear)
+		stack_trace("[type] was instantiated without any valid removable effects!")
+		return COMPONENT_INCOMPATIBLE
+
+	//src.success_feedback = success_feedback
+	//src.success_forcesay = success_forcesay
+	src.on_clear_callback = on_clear_callback
+	src.effects_we_clear = typecacheof(effects_we_clear)
+	src.time_to_remove = time_to_remove
+
+/datum/component/effect_remover/Destroy(force)
+	on_clear_callback = null
+	return ..()
+
+/datum/component/effect_remover/RegisterWithParent()
+	RegisterSignal(parent, COMSIG_ITEM_PRE_ATTACK, PROC_REF(try_remove_effect))
+
+/datum/component/effect_remover/UnregisterFromParent()
+	UnregisterSignal(parent, COMSIG_ITEM_PRE_ATTACK)
+
+/datum/component/effect_remover/proc/try_remove_effect(datum/source, atom/target, mob/living/user, params)
+	SIGNAL_HANDLER
+
+	if(!isliving(user))
+		return NONE
+
+	if(is_type_in_typecache(target, effects_we_clear))
+		do_remove_effects(target, user)
+		return
+
+/datum/component/effect_remover/proc/do_remove_effects(obj/effect/target, mob/living/user)
+/* Grah- Might have to get this revised, later on.
+	if(time_to_remove && !do_after(user, time_to_remove, target))
+		return
+	var/obj/item/item_parent = parent
+	if(success_forcesay)
+		user.say(success_forcesay)
+	if(success_feedback)
+		var/real_feedback = replacetext(success_feedback, "%THEEFFECT", "\the [target]")
+		real_feedback = replacetext(real_feedback, "%THEWEAPON", "\the [item_parent]")
+		user.balloon_alert()
+		to_chat(user, span_notice(real_feedback))
+*/
+	on_clear_callback?.Invoke(target, user)
+
+	if(!QDELETED(target))
+		qdel(target)

code/datums/elements/connect_loc.dm

@@ -0,0 +1,43 @@
+/// This element hooks a signal onto the loc the current object is on.
+/// When the object moves, it will unhook the signal and rehook it to the new object.
+/datum/element/connect_loc
+	element_flags = ELEMENT_BESPOKE|ELEMENT_NO_LIST_UNIT_TEST
+	argument_hash_start_idx = 2
+
+	/// An assoc list of signal -> procpath to register to the loc this object is on.
+	var/list/connections
+
+/datum/element/connect_loc/Attach(atom/movable/listener, list/connections)
+	. = ..()
+	if (!istype(listener))
+		return ELEMENT_INCOMPATIBLE
+
+	src.connections = connections
+
+	RegisterSignal(listener, COMSIG_MOVABLE_MOVED, PROC_REF(on_moved), override = TRUE)
+	update_signals(listener)
+
+/datum/element/connect_loc/Detach(atom/movable/listener)
+	. = ..()
+	unregister_signals(listener, listener.loc)
+	UnregisterSignal(listener, COMSIG_MOVABLE_MOVED)
+
+/datum/element/connect_loc/proc/update_signals(atom/movable/listener)
+	var/atom/listener_loc = listener.loc
+	if(QDELETED(listener) || QDELETED(listener_loc))
+		return
+
+	for (var/signal in connections)
+		//override=TRUE because more than one connect_loc element instance tracked object can be on the same loc
+		listener.RegisterSignal(listener_loc, signal, connections[signal], override=TRUE)
+
+/datum/element/connect_loc/proc/unregister_signals(datum/listener, atom/old_loc)
+	if(isnull(old_loc))
+		return
+
+	listener.UnregisterSignal(old_loc, connections)
+
+/datum/element/connect_loc/proc/on_moved(atom/movable/listener, atom/old_loc)
+	SIGNAL_HANDLER
+	unregister_signals(listener, old_loc)
+	update_signals(listener)

code/game/objects/effects/countdown.dm

@@ -0,0 +1,94 @@
+/obj/effect/countdown
+	name = "countdown"
+	desc = "We're leaving together\n\
+		But still it's farewell\n\
+		And maybe we'll come back\n\
+		To Earth, who can tell?"
+
+	invisibility = INVISIBILITY_OBSERVER
+	anchored = TRUE
+	plane = PLANE_GHOSTS
+	color = "#ff0000"
+	var/text_size = 3
+	var/started = FALSE
+	var/displayed_text
+	var/atom/attached_to
+
+/obj/effect/countdown/Initialize(mapload)
+	. = ..()
+	attach(loc)
+
+/obj/effect/countdown/examine(mob/user)
+	. = ..()
+	. += "This countdown is displaying: [displayed_text]."
+
+/obj/effect/countdown/proc/attach(atom/A)
+	attached_to = A
+	var/turf/loc_turf = get_turf(A)
+	if(!loc_turf)
+		RegisterSignal(attached_to, COMSIG_MOVABLE_MOVED, PROC_REF(retry_attach), TRUE)
+	else
+		forceMove(loc_turf)
+
+/obj/effect/countdown/proc/retry_attach()
+	SIGNAL_HANDLER
+
+	var/turf/loc_turf = get_turf(attached_to)
+	if(!loc_turf)
+		return
+	forceMove(loc_turf)
+	UnregisterSignal(attached_to, COMSIG_MOVABLE_MOVED)
+
+/obj/effect/countdown/proc/start()
+	if(!started)
+		START_PROCESSING(SSfastprocess, src)
+		started = TRUE
+
+/obj/effect/countdown/proc/stop()
+	if(started)
+		maptext = null
+		STOP_PROCESSING(SSfastprocess, src)
+		started = FALSE
+
+/obj/effect/countdown/proc/get_value()
+	// Get the value from our atom
+	return
+
+/obj/effect/countdown/process()
+	if(!attached_to || QDELETED(attached_to))
+		qdel(src)
+	forceMove(get_turf(attached_to))
+	var/new_val = get_value()
+	if(new_val == displayed_text)
+		return
+	displayed_text = new_val
+
+	if(displayed_text)
+		maptext = MAPTEXT("[displayed_text]")
+	else
+		maptext = null
+
+/obj/effect/countdown/Destroy()
+	attached_to = null
+	STOP_PROCESSING(SSfastprocess, src)
+	. = ..()
+
+/obj/effect/countdown/singularity_pull(atom/singularity, current_size)
+	return
+
+/obj/effect/countdown/singularity_act()
+	return
+/*
+/obj/effect/countdown/anomaly
+	name = "anomaly countdown"
+
+/obj/effect/countdown/anomaly/get_value()
+	var/obj/effect/anomaly/A = attached_to
+	if(!istype(A))
+		return
+	else if(A.immortal)
+		stop()
+	else
+		var/time_left = max(0, (A.death_time - world.time)/10)
+		return round(time_left)
+*/

vorestation.dme

@@ -708,10 +708,11 @@
 #include "code\datums\cinematics\malf_doomsday.dm"
 #include "code\datums\cinematics\nuke_cinematics.dm"
 #include "code\datums\components\_component.dm"
-#include "code\datums\components\connect_containers_ch.dm"
+#include "code\datums\components\connect_containers.dm"
 #include "code\datums\components\connect_loc_behalf.dm"
 #include "code\datums\components\connect_mob_behalf.dm"
 #include "code\datums\components\connect_range.dm"
+#include "code\datums\components\effect_remover.dm"
 #include "code\datums\components\holographic_nature.dm"
 #include "code\datums\components\infective.dm"
 #include "code\datums\components\orbiter.dm"
@@ -873,6 +874,7 @@
 #include "code\datums\elements\cleaning.dm"
 #include "code\datums\elements\climbable.dm"
 #include "code\datums\elements\conflict_checking.dm"
+#include "code\datums\elements\connect_loc.dm"
 #include "code\datums\elements\footstep.dm"
 #include "code\datums\elements\footstep_override.dm"
 #include "code\datums\elements\godmode.dm"
@@ -1584,6 +1586,7 @@
 #include "code\game\objects\effects\bump_teleporter.dm"
 #include "code\game\objects\effects\client_only_image.dm"
 #include "code\game\objects\effects\confetti_vr.dm"
+#include "code\game\objects\effects\countdown.dm"
 #include "code\game\objects\effects\effect_system.dm"
 #include "code\game\objects\effects\effect_system_ch.dm"
 #include "code\game\objects\effects\explosion_particles.dm"