Working commit for metalwork.

code/game/atoms_movable.dm

@@ -474,6 +474,7 @@
 /atom/movable/proc/get_object_size()
 	return ITEM_SIZE_NORMAL
 
+// TODO: account for reagents and matter.
 /atom/movable/get_thermal_mass()
 	if(!simulated)
 		return 0
@@ -491,7 +492,18 @@
 	if(!held_slot || !istype(holder) || QDELETED(holder) || loc != holder)
 		return
 
-	// TODO: check protective gear
+	// TODO: put these flags on the inventory slot or something.
+	var/check_slots
+	if(held_slot in global.all_hand_slots)
+		check_slots = SLOT_HANDS
+	else if(held_slot == BP_MOUTH || held_slot == BP_HEAD)
+		check_slots = SLOT_FACE
+
+	if(check_slots)
+		for(var/obj/item/covering in holder.get_covering_equipped_items(check_slots))
+			if(covering.max_heat_protection_temperature >= temperature)
+				return
+
 	// TODO: less simplistic messages and logic
 	var/datum/inventory_slot/slot = held_slot && holder.get_inventory_slot_datum(held_slot)
 	var/check_organ = slot?.requires_organ_tag

code/game/objects/objs.dm

@@ -369,3 +369,19 @@
 
 /obj/proc/get_blend_objects()
 	return
+
+// Used to determine if something can be used as the basis of a mold.
+/obj/proc/is_complex_mould_item()
+	return FALSE // length(matter) <= 1
+
+// Used to determine what a mold made from this item produces.
+/obj/proc/get_mould_product_type()
+	return type
+
+// Used to pass an associative list of data to the mold to pass to the product.
+/obj/proc/get_mould_metadata()
+	return
+
+// Called when passing the metadata back to the item.
+/obj/proc/take_mould_metadata(list/metadata)
+	return

code/modules/crafting/metalwork/metalwork_items.dm

@@ -0,0 +1,32 @@
+/obj/item/storage/crucible
+	name = "crucible"
+	icon = 'icons/obj/metalworking/crucible.dmi'
+	icon_state = ICON_STATE_WORLD
+	material = /decl/material/solid/stone/pottery
+	atom_flags = ATOM_FLAG_OPEN_CONTAINER
+	w_class = ITEM_SIZE_NO_CONTAINER
+	material_alteration = MAT_FLAG_ALTERATION_COLOR | MAT_FLAG_ALTERATION_NAME
+	max_w_class = ITEM_SIZE_LARGE
+	max_storage_space = BASE_STORAGE_CAPACITY(ITEM_SIZE_LARGE)
+
+/obj/item/storage/crucible/Initialize()
+	. = ..()
+	initialize_reagents()
+
+/obj/item/storage/crucible/on_reagent_change()
+	. = ..()
+	queue_icon_update()
+
+/obj/item/storage/crucible/on_update_icon()
+	. = ..()
+	var/decl/material/primary_reagent = reagents?.get_primary_reagent_decl()
+	if(primary_reagent)
+		var/image/I = image(icon, "[icon_state]-filled")
+		I.color = primary_reagent.color
+		I.alpha = 255 * primary_reagent.opacity
+		I.appearance_flags |= RESET_COLOR
+		add_overlay(I)
+
+/obj/item/storage/crucible/initialize_reagents()
+	create_reagents(15 * REAGENT_UNITS_PER_MATERIAL_SHEET)
+	return ..()

code/modules/crafting/pottery/pottery_moulds.dm

@@ -0,0 +1,134 @@
+/obj/item/mould
+	name = "mould"
+	material = /decl/material/solid/stone/pottery
+	material_alteration = MAT_FLAG_ALTERATION_COLOR | MAT_FLAG_ALTERATION_NAME
+	abstract_type = /obj/item/mould
+	max_health = 100
+	var/product_type
+	var/list/product_metadata
+
+/obj/item/mould/Initialize()
+	. = ..()
+	var/datum/extension/labels/lext = get_or_create_extension(src, /datum/extension/labels)
+	if(ispath(product_type, /obj))
+		var/obj/product = product_type
+		lext.AttachLabel(null, initial(product.name))
+		update_icon()
+	else
+		lext.AttachLabel(null, "blank")
+
+/obj/item/mould/Destroy()
+	product_metadata = null
+	return ..()
+
+/obj/item/mould/populate_reagents()
+	if(!ispath(product_type, /obj))
+		return
+	var/required_volume = 0
+	var/list/matter_for_product = atom_info_repository.get_matter_for(product_type)
+	for(var/mat in matter_for_product)
+		required_volume += matter_for_product[mat]
+	required_volume = CEILING(required_volume * REAGENT_UNITS_PER_MATERIAL_UNIT)
+	if(required_volume > 0)
+		if(reagents)
+			reagents.maximum_volume = required_volume
+			reagents.update_total()
+		else
+			create_reagents(required_volume)
+
+/*
+/obj/item/mould/get_max_health()
+	return max_health * some material hardness or integrity constant
+*/
+
+/obj/item/mould/attackby(obj/item/W, mob/user)
+	. = ..()
+	if(!. && user.a_intent != I_HURT)
+		if(try_crack_mold(user, W))
+			return TRUE
+		if(try_take_impression(user, W))
+			return TRUE
+
+/obj/item/mould/proc/try_crack_mold(mob/user, obj/item/hammer)
+
+	if(!product_type)
+		return FALSE
+
+	if(reagents?.total_volume <= 0)
+		to_chat(user, SPAN_WARNING("\The [src] is empty!"))
+		return TRUE
+
+	if(reagents.total_volume < reagents.maximum_volume)
+		to_chat(user, SPAN_WARNING("\The [src] is not full yet!"))
+		return TRUE
+
+	for(var/reagent_type in reagents.reagent_volumes)
+		var/decl/material/reagent = GET_DECL(reagent_type)
+		if(reagent.melting_point && temperature >= reagent.melting_point)
+			to_chat(user, SPAN_WARNING("The contents of \the [src] are still molten! Wait for it to cool down."))
+			return TRUE
+
+	if(user && !IS_HAMMER(hammer))
+		to_chat(user, SPAN_WARNING("You will need a hammer to crack open \the [src]."))
+		return TRUE
+
+	crack_mold(user, hammer)
+	return TRUE
+
+/obj/item/mould/proc/crack_mold(mob/user, obj/item/hammer)
+
+	var/decl/material/product_mat = reagents?.get_primary_reagent_decl()
+	var/obj/product = new product_type(get_turf(src), product_mat?.type)
+	product.dropInto(loc)
+
+	reagents.remove_reagent(product_mat.type, REAGENT_VOLUME(reagents, product_mat.type))
+	for(var/reagent_type in reagents.reagent_volumes)
+		if(reagent_type == product_mat.type)
+			continue
+		LAZYINITLIST(product.matter)
+		product.matter[reagent_type] += max(1, round(reagents.reagent_volumes[reagent_type] / REAGENT_UNITS_PER_MATERIAL_UNIT))
+	reagents.clear_reagents()
+	if(length(product_metadata))
+		product.take_mould_metadata(product_metadata)
+	product.update_icon()
+	. = product
+
+	// TODO: hardness check?
+	if(istype(material, /decl/material/solid/clay) || istype(material, /decl/material/solid/stone/pottery))
+		physically_destroyed(src)
+	else
+		take_damage(rand(10, 20))
+
+/obj/item/mould/proc/try_take_impression(mob/user, obj/item/thing)
+
+	// TODO: hardness check?
+	if(!istype(material, /decl/material/solid/clay))
+		to_chat(user, SPAN_WARNING("\The [src] has already been fired - it's too hard to take another impression."))
+		return TRUE
+
+	// TODO: pottery skill check?
+	if(thing.is_complex_mould_item())
+		to_chat(user, SPAN_WARNING("\The [thing] is too complex to be replicated with a mold."))
+		return TRUE
+
+	// TODO: pottery skill
+	if(user.do_skilled(5 SECONDS, SKILL_CONSTRUCTION, src) && !QDELETED(thing) && (thing.loc == user || thing.Adjacent(user)))
+		user.visible_message("\The [src] shapes [material.use_name] around \the [thing], creating a mold.")
+		var/datum/extension/labels/lext = get_or_create_extension(src, /datum/extension/labels)
+		lext.RemoveAllLabels()
+		lext.AttachLabel(null, initial(thing.name))
+		product_type = thing.get_mould_product_type()
+		product_metadata = thing.get_mould_metadata()
+		update_icon()
+
+	return TRUE
+
+// TODO: silhouette impression of the product_type
+/*
+/obj/item/mould/on_update_icon()
+	return ..()
+*/
+
+// Crucible is premade as you can't reasonably be expected to find one in the wild to take an impression.
+/obj/item/mould/crucible
+	product_type = /obj/item/storage/crucible

code/modules/crafting/stack_recipes/recipes_clay.dm

@@ -34,3 +34,17 @@
 		if(user)
 			S.add_to_stacks(user, 1)
 	return S
+
+/decl/stack_recipe/clay/crucible
+	result_type = /obj/item/storage/crucible
+	on_floor = TRUE
+	time = 3 SECONDS
+
+/decl/stack_recipe/clay/mould
+	name                        = "mould, blank"
+	result_type                 = /obj/item/mould
+	time                        = 5 SECONDS
+
+/decl/stack_recipe/clay/mould/crucible
+	name                        = "mould, crucible"
+	result_type                 = /obj/item/mould/crucible

code/modules/crafting/stack_recipes/recipes_textiles.dm

@@ -1,18 +1,31 @@
 /decl/stack_recipe/textiles
-	craft_stack_types = list(
+	craft_stack_types     = list(
 		/obj/item/stack/material/bolt,
 		/obj/item/stack/material/skin
 	)
-	abstract_type = /decl/stack_recipe/textiles
+	abstract_type         = /decl/stack_recipe/textiles
 
 /decl/stack_recipe/textiles/cloak
-	result_type   = /obj/item/clothing/accessory/cloak/hide
+	result_type           = /obj/item/clothing/accessory/cloak/hide
 
 /decl/stack_recipe/textiles/banner
-	result_type   = /obj/item/banner
+	result_type           = /obj/item/banner
 
 /decl/stack_recipe/textiles/shoes
-	result_type   = /obj/item/clothing/shoes/craftable
+	result_type           = /obj/item/clothing/shoes/craftable
 
 /decl/stack_recipe/textiles/boots
-	result_type   = /obj/item/clothing/shoes/craftable/boots
+	result_type           = /obj/item/clothing/shoes/craftable/boots
+
+/decl/stack_recipe/textiles/gloves
+	result_type           = /obj/item/clothing/gloves
+
+/decl/stack_recipe/textiles/leather
+	abstract_type         = /decl/stack_recipe/textiles/leather
+	required_material     = /decl/material/solid/organic/leather
+
+/decl/stack_recipe/textiles/leather/whip
+	result_type           = /obj/item/whip
+
+/decl/stack_recipe/textiles/leather/gloves
+	result_type           = /obj/item/clothing/gloves/thick

code/modules/locks/key.dm

@@ -15,6 +15,17 @@
 	. = ..(mapload, material_key)
 	key_data = _data
 
+/obj/item/key/get_mould_product_type()
+	return /obj/item/key
+
+/obj/item/key/take_mould_metadata(list/metadata)
+	if("key_data" in metadata)
+		key_data = metadata["key_data"]
+	return ..()
+
+/obj/item/key/get_mould_metadata()
+	. = list("key_data" = get_data())
+
 /obj/item/key/temporary
 	name = "key"
 	desc = "A fragile key with limited uses."

code/modules/materials/material_sheets.dm

@@ -265,6 +265,7 @@
 // Extra subtype defined for the clay stack recipes to not freak out about null material.
 /obj/item/stack/material/brick/clay
 	material = /decl/material/solid/clay
+	is_spawnable_type = TRUE
 
 /obj/item/stack/material/bolt
 	name = "bolts"

code/modules/tools/components/_component.dm

@@ -5,6 +5,9 @@
 	material_alteration = MAT_FLAG_ALTERATION_COLOR | MAT_FLAG_ALTERATION_NAME | MAT_FLAG_ALTERATION_DESC
 	w_class = ITEM_SIZE_SMALL
 
+/obj/item/tool_component/is_complex_mould_item()
+	return TRUE
+
 /*
  todo
 	- binding

nebula.dme

@@ -2002,7 +2002,9 @@
 #include "code\modules\codex\entries\tools.dm"
 #include "code\modules\codex\entries\turfs.dm"
 #include "code\modules\codex\entries\weapons.dm"
+#include "code\modules\crafting\metalwork\metalwork_items.dm"
 #include "code\modules\crafting\pottery\pottery_items.dm"
+#include "code\modules\crafting\pottery\pottery_moulds.dm"
 #include "code\modules\crafting\pottery\pottery_structures.dm"
 #include "code\modules\crafting\slapcrafting\_crafting_holder.dm"
 #include "code\modules\crafting\slapcrafting\_crafting_stage.dm"