Refactors is_hot and fixes some issues from the beaker lighting PR (#22964)

* Idk what I'm doing

* The is_hot refactor

* Fixes that I forgot to push before making the PR

* Update code/game/objects/items.dm

Co-authored-by: Burzah <116982774+Burzah@users.noreply.github.com>

* Contra review

* TODO: Find out why this isn't working

* Removes the signal stuff for now, this works

* Fixes it all

* Add new signal

* Update code/_onclick/item_attack.dm

Co-authored-by: Contrabang <91113370+Contrabang@users.noreply.github.com>

* Contra reivew

* Ayyy it works

* Merge master

* Forgot this one

* Update code/game/machinery/doors/airlock_types.dm

Co-authored-by: Burzah <116982774+Burzah@users.noreply.github.com>

* Update code/game/objects/structures/mineral_doors.dm

Co-authored-by: Burzah <116982774+Burzah@users.noreply.github.com>

* Update code/game/turfs/simulated/floor/mineral_floors.dm

Co-authored-by: Burzah <116982774+Burzah@users.noreply.github.com>

* Update code/game/turfs/simulated/walls_mineral.dm

Co-authored-by: Burzah <116982774+Burzah@users.noreply.github.com>

---------

Co-authored-by: Burzah <116982774+Burzah@users.noreply.github.com>
Co-authored-by: Contrabang <91113370+Contrabang@users.noreply.github.com>

code/game/objects/items/candle.dm

@@ -42,7 +42,7 @@
 		return TRUE
 
 /obj/item/candle/attackby(obj/item/W, mob/user, params)
-	if(is_hot(W))
+	if(W.get_heat())
 		light("<span class='notice'>[user] lights [src] with [W].</span>")
 		return
 	return ..()
@@ -152,6 +152,9 @@
 	infinite = FALSE
 	wax = 1 // next process will burn it out
 
+/obj/item/candle/get_heat()
+	return lit * 1000
+
 #undef TALL_CANDLE
 #undef MID_CANDLE
 #undef SHORT_CANDLE

code/game/objects/items/devices/flashlight.dm

@@ -230,6 +230,9 @@
 		return TRUE
 	return ..()
 
+/obj/item/flashlight/flare/get_heat()
+	return produce_heat * on * 1000
+
 // GLOWSTICKS
 
 /obj/item/flashlight/flare/glowstick

code/game/objects/items/flag.dm

@@ -13,7 +13,7 @@
 
 /obj/item/flag/attackby(obj/item/W, mob/user, params)
 	. = ..()
-	if(is_hot(W) && !(resistance_flags & ON_FIRE))
+	if(W.get_heat() && !(resistance_flags & ON_FIRE))
 		user.visible_message("<span class='notice'>[user] lights [src] with [W].</span>", "<span class='notice'>You light [src] with [W].</span>", "<span class='warning'>You hear a low whoosh.</span>")
 		fire_act()
 
@@ -259,7 +259,7 @@
 			log_game("[key_name(user)] has hidden [I] in [src] ready for detonation at [A.name] ([bombturf.x],[bombturf.y],[bombturf.z]).")
 			investigate_log("[key_name(user)] has hidden [I] in [src] ready for detonation at [A.name] ([bombturf.x],[bombturf.y],[bombturf.z]).", INVESTIGATE_BOMB)
 			add_attack_logs(user, src, "has hidden [I] ready for detonation in", ATKLOG_MOST)
-	else if(is_hot(I) && !(resistance_flags & ON_FIRE) && boobytrap && trapper)
+	else if(I.get_heat() && !(resistance_flags & ON_FIRE) && boobytrap && trapper)
 		var/turf/bombturf = get_turf(src)
 		var/area/A = get_area(bombturf)
 		log_game("[key_name_admin(user)] has lit [src] trapped with [boobytrap] by [key_name_admin(trapper)] at [A.name] ([bombturf.x],[bombturf.y],[bombturf.z]).")

code/game/objects/items/latexballoon.dm

@@ -61,5 +61,5 @@
 		var/obj/item/tank/T = W
 		blow(T, user)
 		return
-	if(is_sharp(W) || is_hot(W) || is_pointed(W))
+	if(is_sharp(W) || W.get_heat() || is_pointed(W))
 		burst()

code/game/objects/items/stacks/sheets/mineral.dm

@@ -264,7 +264,7 @@ GLOBAL_LIST_INIT(sandbag_recipes, list (
 	return TRUE
 
 /obj/item/stack/sheet/mineral/plasma/attackby(obj/item/I, mob/living/user, params)
-	if(is_hot(I))
+	if(I.get_heat())
 		log_and_set_aflame(user, I)
 	else
 		return ..()

code/game/objects/items/tools/welder.dm

@@ -207,6 +207,9 @@
 	if(reagents.check_and_add("fuel", maximum_fuel, 2 * coeff))
 		update_icon()
 
+/obj/item/weldingtool/get_heat()
+	return tool_enabled * 2500
+
 /obj/item/weldingtool/largetank
 	name = "industrial welding tool"
 	desc = "A slightly larger welder with a larger tank."

code/game/objects/items/weapons/cigs.dm

@@ -47,12 +47,19 @@ LIGHTERS ARE IN LIGHTERS.DM
 	reagents.set_reacting(FALSE) // so it doesn't react until you light it
 	if(list_reagents)
 		reagents.add_reagent_list(list_reagents)
+	RegisterSignal(src, COMSIG_ITEM_BEING_ATTACKED, PROC_REF(can_light))
 
 /obj/item/clothing/mask/cigarette/Destroy()
 	QDEL_NULL(reagents)
 	STOP_PROCESSING(SSobj, src)
 	return ..()
 
+/obj/item/clothing/mask/cigarette/proc/can_light(obj/item/cigarette, obj/item/lighting_item)
+	SIGNAL_HANDLER
+	if(lighting_item.get_heat())
+		light()
+		return COMPONENT_CANCEL_ATTACK_CHAIN
+
 /obj/item/clothing/mask/cigarette/decompile_act(obj/item/matter_decompiler/C, mob/user)
 	if(isdrone(user))
 		C.stored_comms["wood"] += 1
@@ -250,6 +257,8 @@ LIGHTERS ARE IN LIGHTERS.DM
 	STOP_PROCESSING(SSobj, src)
 	qdel(src)
 
+/obj/item/clothing/mask/cigarette/get_heat()
+	return lit * 1000
 
 /obj/item/clothing/mask/cigarette/menthol
 	list_reagents = list("nicotine" = 40, "menthol" = 20)

code/game/objects/items/weapons/lighters.dm

@@ -125,6 +125,9 @@
 	item_state = "[initial(item_state)][lit ? "-on" : ""]"
 	return ..()
 
+/obj/item/lighter/get_heat()
+	return lit * 1500
+
 // Zippo lighters
 /obj/item/lighter/zippo
 	name = "zippo lighter"
@@ -304,6 +307,9 @@
 	if(istype(mask_item, /obj/item/clothing/mask/cigarette))
 		return mask_item
 
+/obj/item/match/get_heat()
+	return lit * 1000
+
 /obj/item/match/firebrand
 	name = "firebrand"
 	desc = "An unlit firebrand. It makes you wonder why it's not just called a stick."

code/game/objects/items/weapons/melee/energy_melee_weapons.dm

@@ -85,6 +85,9 @@
 	add_fingerprint(user)
 	return
 
+/obj/item/melee/energy/get_heat()
+	return active * 3500
+
 /obj/item/melee/energy/axe
 	name = "energy axe"
 	desc = "An energised battle axe."