Smith Polish - Heating Rework (#28888)

* Reworks heat

* Merge fixes

code/modules/smithing/machinery/lava_furnace.dm

@@ -4,6 +4,8 @@
 	icon = 'icons/obj/machines/large_smithing_machines.dmi'
 	icon_state = "furnace_off"
 	operation_sound = 'sound/surgery/cautery1.ogg'
+	/// How much the device heats the component
+	var/heat_amount = 5
 
 /obj/machinery/smithing/lava_furnace/Initialize(mapload)
 	. = ..()
@@ -19,10 +21,13 @@
 
 /obj/machinery/smithing/lava_furnace/RefreshParts()
 	var/operation_mult = 0
+	var/heat_mult = 0
 	for(var/obj/item/stock_parts/component in component_parts)
 		operation_mult += OPERATION_SPEED_MULT_PER_RATING * component.rating
+		heat_mult += 0.25 * component.rating
 	// Update our values
 	operation_time = max(ROUND_UP(initial(operation_time) * (1.3 - operation_mult)), 2)
+	heat_amount = round(5 * heat_mult)
 
 /obj/machinery/smithing/lava_furnace/update_overlays()
 	. = ..()
@@ -42,14 +47,14 @@
 	update_icon(UPDATE_OVERLAYS)
 
 /obj/machinery/smithing/lava_furnace/operate(loops, mob/living/user)
-	if(working_component.hot)
+	if(working_component.heat > 10)
 		to_chat(user, "<span class='notice'>[working_component] is already well heated.</span>")
 		return
 	if(working_component.hammer_time <= 0)
 		to_chat(user, "<span class='notice'>[working_component] is already fully shaped.</span>")
 		return
 	..()
-	working_component.heat_up()
+	working_component.heat_up(heat_amount)
 
 /obj/machinery/smithing/lava_furnace/attack_hand(mob/user)
 	. = ..()

code/modules/smithing/machinery/power_hammer.dm

@@ -47,7 +47,7 @@
 	operation_time = max(ROUND_UP(initial(operation_time) * (1.3 - operation_mult)), 2)
 
 /obj/machinery/smithing/power_hammer/operate(loops, mob/living/user)
-	if(!working_component.hot)
+	if(!working_component.heat)
 		to_chat(user, "<span class='notice'>[working_component] is too cold to properly shape.</span>")
 		return
 	if(working_component.hammer_time <= 0)
@@ -57,7 +57,7 @@
 	working_component.powerhammer()
 	do_sparks(5, TRUE, src)
 	// If the hammer is set to repeat mode, let it repeat operations automatically.
-	if(repeating && working_component.hot && working_component.hammer_time)
+	if(repeating && working_component.heat && working_component.hammer_time)
 		operate(loops, user)
 	// When an item is done, beep.
 	if(!working_component.hammer_time)

code/modules/smithing/smith_component.dm

@@ -7,39 +7,54 @@
 	var/part_type
 	/// What is this a part of
 	var/finished_product
-	/// Is this component currently hot
-	var/hot = TRUE
+	/// Heat stacks on the component
+	var/heat = 5
+	/// How often does a component lose heat stacks
+	var/cool_time = 10 SECONDS
 	/// How many times the component needs to be shaped to be considered ready
 	var/hammer_time = 3
 
+/obj/item/smithed_item/component/Initialize(mapload)
+	. = ..()
+	addtimer(CALLBACK(src, PROC_REF(cool_off)), cool_time)
+
 /obj/item/smithed_item/component/update_icon_state()
 	. = ..()
-	if(hot)
+	if(heat)
 		icon_state = "[initial(icon_state)]_hot"
 	else
 		icon_state = "[initial(icon_state)]"
 
 /obj/item/smithed_item/component/proc/powerhammer()
 	hammer_time--
-	if(prob(50) || hammer_time <= 0)
-		hot = FALSE
-		update_icon(UPDATE_ICON_STATE)
-
-/obj/item/smithed_item/component/proc/heat_up()
-	hot = TRUE
+	if(!hammer_time)
+		heat = 0
 	update_icon(UPDATE_ICON_STATE)
 
+/obj/item/smithed_item/component/proc/heat_up(heat_to_add)
+	heat += heat_to_add
+	if(heat)
+		addtimer(CALLBACK(src, PROC_REF(cool_off)), cool_time)
+	update_icon(UPDATE_ICON_STATE)
+
+/obj/item/smithed_item/component/proc/cool_off()
+	heat--
+	if(heat)
+		addtimer(CALLBACK(src, PROC_REF(cool_off)), cool_time)
+	else
+		update_icon(UPDATE_ICON_STATE)
+
 /obj/item/smithed_item/component/examine(mob/user)
 	. = ..()
 	if(hammer_time)
 		. += "It is incomplete. It looks like it needs [hammer_time] more cycles in the power hammer."
 	else
 		. += "It is complete."
-	if(hot)
+	if(heat)
 		. +="<span class='warning'>It is glowing hot!</span>"
 
 /obj/item/smithed_item/component/attack_hand(mob/user)
-	if(!hot)
+	if(!heat)
 		return ..()
 	if(burn_check(user))
 		burn_user(user)
@@ -52,7 +67,7 @@
 	hammer_time = ROUND_UP(initial(hammer_time) * quality.work_mult)
 
 /obj/item/smithed_item/component/proc/burn_check(mob/user)
-	if(!hot)
+	if(!heat)
 		return FALSE
 	var/burn_me = TRUE
 	var/mob/living/carbon/human/H = user