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Refactor girders and wall construction (#94364)

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## About The Pull Request

This PR refactors wall construction on girders, wooden barricades and
metal foam to use a centralized element, which listens to item
interaction signals and attempts to make any available wall recipe.

This change is an atomized prerequisite to my blueprinting system, since
that system requires a sane way to dynamically change the speed at which
walls are built.

This PR will later be expanded to refactor girder construction steps in
general.

I also added `proc/valid_typesof(base_type)` as a side effect of my
previous attempts at refactoring this stuff. There's now what amounts to
a code comment easter egg in the same file, because DM is wacko and
you're going to get cursed now too. :)
## Why It's Good For The Game

The old system had ~20 bespoke yet highly similar wall construction
steps. Some of the wall recipes were also concatenated from a string on
the used stack type. To put it bluntly, the code was fucking horrible.

Same thing goes for the rest of the girder construction steps, they were
all bespoke.
## Changelog
🆑
refactor: Refactored girders and wall construction. Report any bugs.
tweak: Some niche wall types might have their wall delay changed by like
2 seconds. This doesn't affect normal walls, reinforced walls,
falsewalls or any other important wall types.
/🆑
This commit is contained in:
RikuTheKiller
2026-01-26 11:36:16 -05:00
committed by GitHub
parent fd1eb276ae
commit 3e504a77ae
11 changed files with 427 additions and 499 deletions
Download Patch File Download Diff File Expand all files Collapse all files
code/game/objects/structures/girders.dm
+122 -438
View File
@@ -12,20 +12,27 @@
smoothing_groups = SMOOTH_GROUP_GIRDER
canSmoothWith = SMOOTH_GROUP_GIRDER + SMOOTH_GROUP_WALLS
custom_materials = list(/datum/material/iron = SHEET_MATERIAL_AMOUNT * 2)
/// The stack type required to construct and dropped upon deconstructing the girder.
var/stack_type = /obj/item/stack/sheet/iron
/// The stack amount required to construct and dropped upon deconstructing the girder.
var/stack_amount = 2
/// Always drops the stack in full, even when demolished rather than disassembled.
var/always_drop_stack = FALSE
/// The current state of the girder. Used for construction.
var/state = GIRDER_NORMAL
var/girderpasschance = 20 // percentage chance that a projectile passes through the girder.
var/can_displace = TRUE //If the girder can be moved around by wrenching it
var/next_beep = 0 //Prevents spamming of the construction sound
/// The material cost to construct something on the girder
var/static/list/construction_cost = list(
/obj/item/stack/sheet/iron = 2,
/obj/item/stack/rods = 5,
/obj/item/stack/sheet/plasteel = 2,
/obj/item/stack/sheet/bronze = 2,
/obj/item/stack/sheet/runed_metal = 1,
/obj/item/stack/sheet/titaniumglass = 2,
exotic_material = 2 // this needs to be refactored properly
)
/// Whether the girder can be unanchored by wrenching it.
var/can_displace = TRUE
/// Whether the girder can be welded apart. (for cult and bronze girders)
var/can_weld_apart = FALSE
/// The percentage chance (0-100) that a projectile passes through the girder.
var/projectile_pass_chance = 20
/obj/structure/girder/Initialize(mapload)
. = ..()
AddElement(/datum/element/uses_girder_wall_recipes)
/obj/structure/girder/examine(mob/user)
. = ..()
@@ -39,378 +46,106 @@
. += span_notice("The bolts are <b>wrenched</b> in place.")
if(GIRDER_DISPLACED)
. += span_notice("The bolts are <i>loosened</i>, but the <b>screws</b> are holding [src] together.")
if(GIRDER_DISASSEMBLED)
. += span_notice("[src] is disassembled! You probably shouldn't be able to see this examine message.")
if(GIRDER_TRAM)
. += span_notice("[src] is designed for tram usage. Deconstructed with a screwdriver!")
if (can_weld_apart)
. += span_notice("The frame looks weak enough to be <b>welded</b> apart.")
else
. += span_notice("The frame could be sliced apart with a <b>plasmacutter</b>.")
/obj/structure/girder/attackby(obj/item/W, mob/user, list/modifiers, list/attack_modifiers)
add_fingerprint(user)
if(istype(W, /obj/item/gun/energy/plasmacutter))
balloon_alert(user, "slicing apart...")
if(W.use_tool(src, user, 40, volume=100))
if(state == GIRDER_TRAM)
var/obj/item/stack/sheet/mineral/titanium/M = new (user.loc, 2)
if(!QDELETED(M))
M.add_fingerprint(user)
else
var/obj/item/stack/sheet/iron/M = new (loc, 2)
if(!QDELETED(M))
M.add_fingerprint(user)
qdel(src)
/obj/structure/girder/item_interaction(mob/living/user, obj/item/tool, list/modifiers)
if (user.combat_mode)
return
if (istype(tool, /obj/item/stack/sheet/plasteel))
if (try_construction_step(user, tool, 5 SECONDS, req_state = GIRDER_NORMAL, start_alert = "reinforcing frame..."))
replace_girder(/obj/structure/girder/reinforced)
return ITEM_INTERACT_SUCCESS
return ITEM_INTERACT_BLOCKING
if(isstack(W))
var/obj/item/stack/stack = W
if(!stack.usable_for_construction)
balloon_alert(user, "can't make walls with it!")
return
if(iswallturf(loc) || (locate(/obj/structure/falsewall) in src.loc.contents))
balloon_alert(user, "wall already present!")
return
if(!isfloorturf(src.loc) && state != GIRDER_TRAM)
balloon_alert(user, "need floor!")
return
if(state == GIRDER_TRAM)
if(!locate(/obj/structure/transport/linear/tram) in src.loc.contents)
balloon_alert(user, "need tram floors!")
return
make_wall(stack, user)
return
if(istype(W, /obj/item/pipe))
var/obj/item/pipe/P = W
if (P.pipe_type in list(0, 1, 5)) //simple pipes, simple bends, and simple manifolds.
if(!user.transfer_item_to_turf(P, drop_location()))
return
balloon_alert(user, "inserted pipe")
return
return ..()
/obj/structure/girder/proc/make_wall(obj/item/stack/stack, mob/user)
var/speed_modifier = 1
if(HAS_TRAIT(user, TRAIT_QUICK_BUILD))
speed_modifier = 0.7
if(next_beep <= world.time)
next_beep = world.time + 10
playsound(src, 'sound/machines/clockcult/integration_cog_install.ogg', 50, TRUE)
if(istype(stack, /obj/item/stack/rods))
var/obj/item/stack/rods/rod = stack
var/amount = construction_cost[rod.type]
if(state == GIRDER_DISPLACED)
if(rod.get_amount() < amount)
balloon_alert(user, "need [amount] rods!")
return
balloon_alert(user, "concealing entrance...")
if(do_after(user, 2 SECONDS, target = src))
if(rod.get_amount() < amount)
return
rod.use(amount)
var/obj/structure/falsewall/iron/FW = new (loc)
transfer_fingerprints_to(FW)
qdel(src)
return
if(state == GIRDER_REINF)
balloon_alert(user, "need plasteel sheet!")
return
if(rod.get_amount() < amount)
balloon_alert(user, "need [amount] rods!")
return
balloon_alert(user, "adding rods...")
if(do_after(user, 4 SECONDS, target = src))
if(rod.get_amount() < amount)
return
rod.use(amount)
var/turf/T = get_turf(src)
T.place_on_top(/turf/closed/wall/mineral/iron)
transfer_fingerprints_to(T)
qdel(src)
return
else if(istype(stack, /obj/item/stack/sheet/iron))
var/amount = construction_cost[/obj/item/stack/sheet/iron]
if(state == GIRDER_DISPLACED)
if(stack.get_amount() < amount)
balloon_alert(user, "need [amount] sheets!")
return
balloon_alert(user, "concealing entrance...")
if(do_after(user, 20 * speed_modifier, target = src))
if(stack.get_amount() < amount)
return
stack.use(amount)
var/obj/structure/falsewall/F = new (loc)
transfer_fingerprints_to(F)
qdel(src)
return
else if(state == GIRDER_REINF)
balloon_alert(user, "need plasteel sheet!")
return
else if(state == GIRDER_TRAM)
if(stack.get_amount() < amount)
balloon_alert(user, "need [amount] sheets!")
return
balloon_alert(user, "adding plating...")
if (do_after(user, 4 SECONDS, target = src))
if(stack.get_amount() < amount)
return
stack.use(amount)
var/obj/structure/tram/alt/iron/tram_wall = new(loc)
transfer_fingerprints_to(tram_wall)
qdel(src)
return
else
if(stack.get_amount() < amount)
balloon_alert(user, "need [amount] sheets!")
return
balloon_alert(user, "adding plating...")
if (do_after(user, 40 * speed_modifier, target = src))
if(stack.get_amount() < amount)
return
stack.use(amount)
var/turf/T = get_turf(src)
T.place_on_top(/turf/closed/wall)
transfer_fingerprints_to(T)
qdel(src)
return
else if(istype(stack, /obj/item/stack/sheet/titaniumglass) && state == GIRDER_TRAM)
var/amount = construction_cost[/obj/item/stack/sheet/titaniumglass]
if(stack.get_amount() < amount)
balloon_alert(user, "need [amount] sheets!")
return
balloon_alert(user, "adding panel...")
if (do_after(user, 2 SECONDS, target = src))
if(stack.get_amount() < amount)
return
stack.use(amount)
var/obj/structure/tram/tram_wall = new(loc)
transfer_fingerprints_to(tram_wall)
qdel(src)
return
else if(istype(stack, /obj/item/stack/sheet/plasteel))
var/amount = construction_cost[/obj/item/stack/sheet/plasteel]
if(state == GIRDER_DISPLACED)
if(stack.get_amount() < amount)
balloon_alert(user, "need [amount] sheets!")
return
balloon_alert(user, "concealing entrance...")
if(do_after(user, 2 SECONDS, target = src))
if(stack.get_amount() < amount)
return
stack.use(amount)
var/obj/structure/falsewall/reinforced/FW = new (loc)
transfer_fingerprints_to(FW)
qdel(src)
return
else if(state == GIRDER_REINF)
amount = 1 // hur dur let's make plasteel have different construction amounts 4norasin
if(stack.get_amount() < amount)
return
balloon_alert(user, "adding plating...")
if(do_after(user, 50 * speed_modifier, target = src))
if(stack.get_amount() < amount)
return
stack.use(amount)
var/turf/T = get_turf(src)
T.place_on_top(/turf/closed/wall/r_wall)
transfer_fingerprints_to(T)
qdel(src)
return
else
amount = 1 // hur dur x2
if(stack.get_amount() < amount)
return
balloon_alert(user, "reinforcing frame...")
if(do_after(user, 60 * speed_modifier, target = src))
if(stack.get_amount() < amount)
return
stack.use(amount)
var/obj/structure/girder/reinforced/R = new (loc)
transfer_fingerprints_to(R)
qdel(src)
return
else if(istype(stack, /obj/item/stack/sheet/mineral/plastitanium))
if(state == GIRDER_REINF)
if(stack.get_amount() < 1)
return
balloon_alert(user, "adding plating...")
if(do_after(user, 50 * speed_modifier, target = src))
if(stack.get_amount() < 1)
return
stack.use(1)
var/turf/T = get_turf(src)
T.place_on_top(/turf/closed/wall/r_wall/plastitanium)
transfer_fingerprints_to(T)
qdel(src)
return
// No return here because generic material construction handles making normal plastitanium walls
else if(!stack.has_unique_girder && stack.material_type)
if(istype(src, /obj/structure/girder/reinforced))
balloon_alert(user, "need plasteel or plastitanium!")
return
var/material
if(istype(stack, /obj/item/stack/sheet))
var/obj/item/stack/sheet/sheet = stack
material = sheet.construction_path_type
var/amount = construction_cost["exotic_material"]
if(state == GIRDER_TRAM)
if(stack.get_amount() < amount)
balloon_alert(user, "need [amount] sheets!")
return
var/tram_wall_type = text2path("/obj/structure/tram/alt/[material]")
if(!tram_wall_type)
balloon_alert(user, "need titanium glass or mineral!")
return
balloon_alert(user, "adding plating...")
if (do_after(user, 4 SECONDS, target = src))
if(stack.get_amount() < amount)
return
var/obj/structure/tram/tram_wall
tram_wall = new tram_wall_type(loc)
stack.use(amount)
transfer_fingerprints_to(tram_wall)
qdel(src)
return
if(state == GIRDER_DISPLACED)
var/falsewall_type = text2path("/obj/structure/falsewall/[material]")
if(stack.get_amount() < amount)
balloon_alert(user, "need [amount] sheets!")
return
balloon_alert(user, "concealing entrance...")
if(do_after(user, 2 SECONDS, target = src))
if(stack.get_amount() < amount)
return
stack.use(amount)
var/obj/structure/falsewall/falsewall
if(falsewall_type)
falsewall = new falsewall_type (loc)
else
var/obj/structure/falsewall/material/mat_falsewall = new(loc)
var/list/material_list = list()
material_list[GET_MATERIAL_REF(stack.material_type)] = SHEET_MATERIAL_AMOUNT * 2
if(material_list)
mat_falsewall.set_custom_materials(material_list)
falsewall = mat_falsewall
transfer_fingerprints_to(falsewall)
qdel(src)
return
else
if(stack.get_amount() < amount)
balloon_alert(user, "need [amount] sheets!")
return
balloon_alert(user, "adding plating...")
if (do_after(user, 4 SECONDS, target = src))
if(stack.get_amount() < amount)
return
stack.use(amount)
var/turf/T = get_turf(src)
if(stack.walltype)
T.place_on_top(stack.walltype)
else
var/turf/newturf = T.place_on_top(/turf/closed/wall/material)
var/list/material_list = list()
material_list[GET_MATERIAL_REF(stack.material_type)] = SHEET_MATERIAL_AMOUNT * 2
if(material_list)
newturf.set_custom_materials(material_list)
transfer_fingerprints_to(T)
qdel(src)
return
// Screwdriver behavior for girders
/obj/structure/girder/screwdriver_act(mob/user, obj/item/tool)
if(..())
return TRUE
. = ITEM_INTERACT_BLOCKING
switch (state)
if (GIRDER_TRAM)
if (try_construction_step(user, tool, 4 SECONDS, req_state = GIRDER_TRAM, start_alert = "disassembling frame..."))
deconstruct(disassembled = TRUE)
return ITEM_INTERACT_SUCCESS
if (GIRDER_DISPLACED)
if (try_construction_step(user, tool, 4 SECONDS, req_state = GIRDER_DISPLACED, start_alert = "disassembling frame..."))
deconstruct(disassembled = TRUE)
return ITEM_INTERACT_SUCCESS
if (GIRDER_REINF)
if (try_construction_step(user, tool, 4 SECONDS, req_state = GIRDER_REINF, start_alert = "unsecuring support struts..."))
state = GIRDER_REINF_STRUTS
return ITEM_INTERACT_SUCCESS
if (GIRDER_REINF_STRUTS)
if (try_construction_step(user, tool, 4 SECONDS, req_state = GIRDER_REINF_STRUTS, start_alert = "securing support struts..."))
state = GIRDER_REINF
return ITEM_INTERACT_SUCCESS
. = FALSE
if(state == GIRDER_TRAM)
balloon_alert(user, "disassembling frame...")
if(tool.use_tool(src, user, 4 SECONDS, volume=100))
if(state != GIRDER_TRAM)
return
state = GIRDER_DISASSEMBLED
var/obj/item/stack/sheet/mineral/titanium/material = new (user.loc, 2)
if (!QDELETED(material))
material.add_fingerprint(user)
qdel(src)
return TRUE
if(state == GIRDER_DISPLACED)
balloon_alert(user, "disassembling frame...")
if(tool.use_tool(src, user, 40, volume=100))
if(state != GIRDER_DISPLACED)
return
state = GIRDER_DISASSEMBLED
var/obj/item/stack/sheet/iron/M = new (loc, 2)
if (!QDELETED(M))
M.add_fingerprint(user)
qdel(src)
return TRUE
else if(state == GIRDER_REINF)
balloon_alert(user, "unsecuring support struts...")
if(tool.use_tool(src, user, 40, volume=100))
if(state != GIRDER_REINF)
return
state = GIRDER_REINF_STRUTS
return TRUE
else if(state == GIRDER_REINF_STRUTS)
balloon_alert(user, "securing support struts...")
if(tool.use_tool(src, user, 40, volume=100))
if(state != GIRDER_REINF_STRUTS)
return
state = GIRDER_REINF
return TRUE
// Wirecutter behavior for girders
/obj/structure/girder/wirecutter_act(mob/user, obj/item/tool)
. = ..()
if(state == GIRDER_REINF_STRUTS)
balloon_alert(user, "removing inner grille...")
if(tool.use_tool(src, user, 40, volume=100))
new /obj/item/stack/sheet/plasteel(get_turf(src))
var/obj/structure/girder/G = new (loc)
transfer_fingerprints_to(G)
qdel(src)
return TRUE
. = ITEM_INTERACT_BLOCKING
if (try_construction_step(user, tool, 4 SECONDS, req_state = GIRDER_REINF_STRUTS, start_alert = "removing inner grille..."))
new /obj/item/stack/sheet/plasteel(get_turf(src))
replace_girder(/obj/structure/girder)
return ITEM_INTERACT_SUCCESS
/obj/structure/girder/wrench_act(mob/user, obj/item/tool)
. = ..()
if(state == GIRDER_DISPLACED)
if(!isfloorturf(loc))
balloon_alert(user, "needs floor!")
. = ITEM_INTERACT_BLOCKING
if (!can_displace)
balloon_alert(user, "no bolts!")
return
switch (state)
if (GIRDER_NORMAL)
if (try_construction_step(user, tool, 4 SECONDS, req_state = GIRDER_NORMAL, start_alert = "unsecuring frame..."))
replace_girder(/obj/structure/girder/displaced)
return ITEM_INTERACT_SUCCESS
if (GIRDER_DISPLACED)
if (try_construction_step(user, tool, 4 SECONDS, req_state = GIRDER_DISPLACED, start_alert = "securing frame..."))
replace_girder(/obj/structure/girder)
return ITEM_INTERACT_SUCCESS
balloon_alert(user, "securing frame...")
if(tool.use_tool(src, user, 40, volume=100))
var/obj/structure/girder/G = new (loc)
transfer_fingerprints_to(G)
qdel(src)
return TRUE
else if(state == GIRDER_NORMAL && can_displace)
balloon_alert(user, "unsecuring frame...")
if(tool.use_tool(src, user, 40, volume=100))
var/obj/structure/girder/displaced/D = new (loc)
transfer_fingerprints_to(D)
qdel(src)
return TRUE
/obj/structure/girder/welder_act(mob/living/user, obj/item/tool)
. = ITEM_INTERACT_BLOCKING
// Plasmacutters can always slice apart girders.
if (!can_weld_apart && !istype(tool, /obj/item/gun/energy/plasmacutter))
balloon_alert(user, "can't weld apart!")
return
if (try_construction_step(user, tool, 4 SECONDS, start_alert = "slicing apart..."))
deconstruct(disassembled = TRUE)
return ITEM_INTERACT_SUCCESS
/obj/structure/girder/proc/try_construction_step(mob/living/user, obj/item/tool, delay, req_state, req_floor, start_alert, volume = 100)
if (!check_state(user, req_state, req_floor))
return FALSE
balloon_alert(user, start_alert)
add_fingerprint(user)
tool.add_fingerprint(user)
return tool.use_tool(src, user, delay, volume = volume, extra_checks = CALLBACK(src, PROC_REF(check_state), user, req_state, req_floor))
/obj/structure/girder/proc/check_state(mob/living/user, req_state, req_anchored, req_floor)
if (!isnull(req_state) && req_state != state)
return FALSE
if (req_floor && !isfloorturf(loc))
balloon_alert(user, "needs a floor!")
return FALSE
return TRUE
// We do this instead of state handling because of the large number of variables we would otherwise need to keep track of.
// That said, ultimately, it would be a better solution for all of it to just be [/obj/structure/girder] at base.
// For example right now if you paint a girder and use a wrench on it, it will magically lose that paint.
/obj/structure/girder/proc/replace_girder(girder_type)
var/obj/structure/girder/new_girder = new girder_type(loc)
transfer_fingerprints_to(new_girder)
new_girder.update_integrity(new_girder.max_integrity * (atom_integrity / max_integrity))
qdel(src)
/obj/structure/girder/CanAllowThrough(atom/movable/mover, border_dir)
. = ..()
if((mover.pass_flags & PASSGRILLE) || isprojectile(mover))
return prob(girderpasschance)
return prob(projectile_pass_chance)
/obj/structure/girder/CanAStarPass(to_dir, datum/can_pass_info/pass_info)
if(!density)
@@ -420,12 +155,14 @@
return FALSE
/obj/structure/girder/atom_deconstruct(disassembled = TRUE)
var/remains = pick(/obj/item/stack/rods, /obj/item/stack/sheet/iron)
new remains(loc)
if (disassembled || always_drop_stack)
new stack_type(drop_location(), stack_amount)
else
var/remains = pick(/obj/item/stack/rods, stack_type)
new remains(drop_location())
/obj/structure/girder/narsie_act()
new /obj/structure/girder/cult(loc)
qdel(src)
replace_girder(/obj/structure/girder/cult)
/obj/structure/girder/displaced
name = "displaced girder"
@@ -433,7 +170,7 @@
icon_state = "displaced"
anchored = FALSE
state = GIRDER_DISPLACED
girderpasschance = 25
projectile_pass_chance = 25
max_integrity = 120
smoothing_flags = NONE
smoothing_groups = null
@@ -445,7 +182,7 @@
icon_state = "reinforced-0"
base_icon_state = "reinforced"
state = GIRDER_REINF
girderpasschance = 0
projectile_pass_chance = 0
max_integrity = 350
/obj/structure/girder/tram
@@ -458,6 +195,7 @@
smoothing_flags = NONE
smoothing_groups = null
canSmoothWith = null
stack_type = /obj/item/stack/sheet/mineral/titanium
/obj/structure/girder/tram/corner
name = "tram frame corner"
@@ -474,43 +212,14 @@
smoothing_groups = null
canSmoothWith = null
custom_materials = list(/datum/material/runedmetal = SHEET_MATERIAL_AMOUNT)
/obj/structure/girder/cult/attackby(obj/item/W, mob/user, list/modifiers, list/attack_modifiers)
add_fingerprint(user)
if(W.tool_behaviour == TOOL_WELDER)
if(!W.tool_start_check(user, amount=1))
return
balloon_alert(user, "slicing apart...")
if(W.use_tool(src, user, 40, volume=50))
var/obj/item/stack/sheet/runed_metal/R = new(drop_location(), 1)
transfer_fingerprints_to(R)
qdel(src)
else if(istype(W, /obj/item/stack/sheet/runed_metal))
var/obj/item/stack/sheet/runed_metal/R = W
var/amount = construction_cost[R.type]
if(R.get_amount() < amount)
balloon_alert(user, "need [amount] sheet!")
return
balloon_alert(user, "adding plating...")
if(do_after(user, 5 SECONDS, target = src))
if(R.get_amount() < amount)
return
R.use(amount)
var/turf/T = get_turf(src)
T.place_on_top(/turf/closed/wall/mineral/cult)
qdel(src)
else
return ..()
stack_type = /obj/item/stack/sheet/runed_metal
stack_amount = 1
always_drop_stack = TRUE
can_weld_apart = TRUE
/obj/structure/girder/cult/narsie_act()
return
/obj/structure/girder/cult/atom_deconstruct(disassembled = TRUE)
new /obj/item/stack/sheet/runed_metal(drop_location())
/obj/structure/girder/rcd_vals(mob/user, obj/item/construction/rcd/the_rcd)
switch(the_rcd.mode)
if(RCD_TURF)
@@ -550,32 +259,7 @@
smoothing_groups = null
canSmoothWith = null
custom_materials = list(/datum/material/bronze = SHEET_MATERIAL_AMOUNT * 2)
/obj/structure/girder/bronze/attackby(obj/item/W, mob/living/user, list/modifiers, list/attack_modifiers)
add_fingerprint(user)
if(W.tool_behaviour == TOOL_WELDER)
if(!W.tool_start_check(user, amount = 0, heat_required = HIGH_TEMPERATURE_REQUIRED))
return
balloon_alert(user, "slicing apart...")
if(W.use_tool(src, user, 40, volume=50))
var/obj/item/stack/sheet/bronze/B = new(drop_location(), 2)
transfer_fingerprints_to(B)
qdel(src)
else if(istype(W, /obj/item/stack/sheet/bronze))
var/obj/item/stack/sheet/bronze/B = W
var/amount = construction_cost[B.type]
if(B.get_amount() < amount)
balloon_alert(user, "need [amount] sheets!")
return
balloon_alert(user, "adding plating...")
if(do_after(user, 5 SECONDS, target = src))
if(B.get_amount() < amount)
return
B.use(amount)
var/turf/T = get_turf(src)
T.place_on_top(/turf/closed/wall/mineral/bronze)
qdel(src)
else
return ..()
stack_type = /obj/item/stack/sheet/bronze
stack_amount = 1
always_drop_stack = TRUE
can_weld_apart = TRUE