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Bubberstation/code/game/shuttle_engines.dm
SyncIt21 2d41569c65 Flatpacker & machine frame enhancements (#91752) 
## About The Pull Request

**1. Makes the machine creation process from both efficient.**
The machine frame no longer creates & deletes the machines old component
parts before moving in the new parts. It instead now passes its parts
directly to the circuit boards `apply_default_parts()` meaning the old
parts are never created and the new ones get applied directly. This also
mean it does not have to again call `RefreshParts()` as the machines
`Initialize()` proc will do that for us by default so the performance is
just faster now.
Flatpack box also benefits from this and it will need it as stated below

- Fixes #86514. As the circuit board is passed to the machine's
`Initialize()` proc during reconstruction so it sets it's
`all_products_free` from the board both during mapload & when player
constructed from either machine frame & flatpack

**2. Flatpack enhancements** 
- The flatpack box now passes its stored circuit board into the machine
meaning any changes made like with a screw driver or such are preserved
in the newly created machine rather than the board getting deleted & the
machine creating the default board
- Flatpacker now accept custom component parts that replaces its stored
circuit board default parts. This implements

https://github.com/tgstation/tgstation/pull/91670#issuecomment-2977259973
meaning instead of the vendor created from the flatpacker starting out
empty it now accepts the refill canister and will package both of them
together. Then during deployment that stored canister is stored back in
the vendor meaning instead of starting out empty you get to carry over
all your previous stock

Depends on https://github.com/tgstation/tgstation/pull/91512 because of
named arg conflict. Keep this drafted till that gets merged

## Changelog
🆑
qol: flatpacker now accepts custom component parts(like vendor refill
canister) along with the circuit board so you can carry over your
previous stock during deployment rather than starting out empty
fix: flatpack boxes now passes its stored circuit board into the machine
thus preserving its properties instead of creating a default board in
the machine
fix: vending machines reconstructed on station from circuits loaded off
station(having free products) will continue to sell free products
code: machine construction via flatpacker/machine frame is faster
performance wise
/🆑
2025-07-11 08:58:11 +02:00

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#define ENGINE_UNWRENCHED 0
#define ENGINE_WRENCHED 1
#define ENGINE_WELDED 2
///How long it takes to weld/unweld an engine in place.
#define ENGINE_WELDTIME (20 SECONDS)
/obj/machinery/power/shuttle_engine
name = "engine"
desc = "A bluespace engine used to make shuttles move."
icon = 'icons/turf/shuttle.dmi'
resistance_flags = LAVA_PROOF | FIRE_PROOF | ACID_PROOF
smoothing_groups = SMOOTH_GROUP_SHUTTLE_PARTS
armor_type = /datum/armor/power_shuttle_engine
can_atmos_pass = ATMOS_PASS_DENSITY
max_integrity = 500
density = TRUE
anchored = TRUE
use_power = NO_POWER_USE
circuit = /obj/item/circuitboard/machine/engine
///How well the engine affects the ship's speed.
var/engine_power = 1
///Construction state of the Engine.
var/engine_state = ENGINE_WELDED //welding shmelding //i love welding
///The mobile ship we are connected to.
var/datum/weakref/connected_ship_ref
var/static/list/connections = list(COMSIG_TURF_ADDED_TO_SHUTTLE = PROC_REF(on_turf_added_to_shuttle))
/datum/armor/power_shuttle_engine
melee = 100
bullet = 10
laser = 10
fire = 50
acid = 70
/obj/machinery/power/shuttle_engine/Initialize(mapload)
. = ..()
AddComponent(/datum/component/simple_rotation)
register_context()
if(!mapload)
engine_state = ENGINE_UNWRENCHED
anchored = FALSE
/obj/machinery/power/shuttle_engine/on_construction(mob/user)
. = ..()
if(anchored)
connect_to_shuttle(port = SSshuttle.get_containing_shuttle(src)) //connect to a new ship, if needed
if(!connected_ship_ref?.resolve())
AddElement(/datum/element/connect_loc, connections)
/obj/machinery/power/shuttle_engine/connect_to_shuttle(mapload, obj/docking_port/mobile/port, obj/docking_port/stationary/dock)
. = ..()
if(!port)
return FALSE
connected_ship_ref = WEAKREF(port)
port.engine_list += src
if(mapload)
port.initial_engine_power += engine_power
if(engine_state == ENGINE_WELDED)
alter_engine_power(engine_power)
/obj/machinery/power/shuttle_engine/Destroy()
if(engine_state == ENGINE_WELDED)
alter_engine_power(-engine_power)
unsync_ship()
return ..()
/obj/machinery/power/shuttle_engine/examine(mob/user)
. = ..()
switch(engine_state)
if(ENGINE_UNWRENCHED)
. += span_notice("\The [src] is unbolted from the floor. It needs to be wrenched to the floor to be installed.")
if(ENGINE_WRENCHED)
. += span_notice("\The [src] is bolted to the floor and can be unbolted with a wrench. It needs to be welded to the floor to finish installation.")
if(ENGINE_WELDED)
. += span_notice("\The [src] is welded to the floor and can be unwelded. It is currently fully installed.")
/obj/machinery/power/shuttle_engine/add_context(atom/source, list/context, obj/item/held_item, mob/living/user)
if(held_item?.tool_behaviour == TOOL_WELDER && engine_state == ENGINE_WRENCHED)
context[SCREENTIP_CONTEXT_LMB] = "Weld to Floor"
if(held_item?.tool_behaviour == TOOL_WELDER && engine_state == ENGINE_WELDED)
context[SCREENTIP_CONTEXT_LMB] = "Unweld from Floor"
if(held_item?.tool_behaviour == TOOL_WRENCH && engine_state == ENGINE_UNWRENCHED)
context[SCREENTIP_CONTEXT_LMB] = "Wrench to Floor"
if(held_item?.tool_behaviour == TOOL_WRENCH && engine_state == ENGINE_WRENCHED)
context[SCREENTIP_CONTEXT_LMB] = "Unwrench from Floor"
return CONTEXTUAL_SCREENTIP_SET
/**
* Called on destroy and when we need to unsync an engine from their ship.
*/
/obj/machinery/power/shuttle_engine/proc/unsync_ship()
var/obj/docking_port/mobile/port = connected_ship_ref?.resolve()
if(port)
port.engine_list -= src
port.current_engine_power -= initial(engine_power)
connected_ship_ref = null
RemoveElement(/datum/element/connect_loc, connections)
//Ugh this is a lot of copypasta from emitters, welding need some boilerplate reduction
/obj/machinery/power/shuttle_engine/can_be_unfasten_wrench(mob/user, silent)
if(engine_state == ENGINE_WELDED)
if(!silent)
to_chat(user, span_warning("[src] is welded to the floor!"))
return FAILED_UNFASTEN
return ..()
/obj/machinery/power/shuttle_engine/default_unfasten_wrench(mob/user, obj/item/tool, time = 20)
. = ..()
if(. == SUCCESSFUL_UNFASTEN)
if(anchored)
connect_to_shuttle(port = SSshuttle.get_containing_shuttle(src)) //connect to a new ship, if needed
if(!connected_ship_ref?.resolve())
AddElement(/datum/element/connect_loc, connections)
engine_state = ENGINE_WRENCHED
else
unsync_ship() //not part of the ship anymore
engine_state = ENGINE_UNWRENCHED
/obj/machinery/power/shuttle_engine/proc/on_turf_added_to_shuttle(turf/source, obj/docking_port/mobile/port)
SIGNAL_HANDLER
connect_to_shuttle(port = port)
/obj/machinery/power/shuttle_engine/wrench_act(mob/living/user, obj/item/tool)
. = ..()
default_unfasten_wrench(user, tool)
return ITEM_INTERACT_SUCCESS
/obj/machinery/power/shuttle_engine/welder_act(mob/living/user, obj/item/tool)
. = ..()
switch(engine_state)
if(ENGINE_UNWRENCHED)
to_chat(user, span_warning("\The [src] needs to be wrenched to the floor!"))
if(ENGINE_WRENCHED)
if(!tool.tool_start_check(user, amount=round(ENGINE_WELDTIME / 5), heat_required = HIGH_TEMPERATURE_REQUIRED))
return TRUE
user.visible_message(span_notice("[user.name] starts to weld \the [src] to the floor."), \
span_notice("You start to weld \the [src] to the floor..."), \
span_hear("You hear welding."))
if(tool.use_tool(src, user, ENGINE_WELDTIME, volume=50))
engine_state = ENGINE_WELDED
to_chat(user, span_notice("You weld \the [src] to the floor."))
alter_engine_power(engine_power)
if(ENGINE_WELDED)
if(!tool.tool_start_check(user, amount=round(ENGINE_WELDTIME / 5), heat_required = HIGH_TEMPERATURE_REQUIRED))
return TRUE
user.visible_message(span_notice("[user.name] starts to cut \the [src] free from the floor."), \
span_notice("You start to cut \the [src] free from the floor..."), \
span_hear("You hear welding."))
if(tool.use_tool(src, user, ENGINE_WELDTIME, volume=50))
engine_state = ENGINE_WRENCHED
to_chat(user, span_notice("You cut \the [src] free from the floor."))
alter_engine_power(-engine_power)
return TRUE
//Propagates the change to the shuttle.
/obj/machinery/power/shuttle_engine/proc/alter_engine_power(mod)
if(!mod)
return
var/obj/docking_port/mobile/port = connected_ship_ref?.resolve()
if(port)
port.alter_engines(mod)
/obj/machinery/power/shuttle_engine/heater
name = "engine heater"
desc = "Directs energy into compressed particles in order to power engines."
icon_state = "heater"
circuit = /obj/item/circuitboard/machine/engine/heater
engine_power = 0 // todo make these into 2x1 parts
/obj/machinery/power/shuttle_engine/propulsion
name = "propulsion engine"
icon_state = "propulsion"
desc = "A standard reliable bluespace engine used by many forms of shuttles."
circuit = /obj/item/circuitboard/machine/engine/propulsion
opacity = TRUE
/obj/machinery/power/shuttle_engine/propulsion/left
name = "left propulsion engine"
icon_state = "propulsion_l"
/obj/machinery/power/shuttle_engine/propulsion/right
name = "right propulsion engine"
icon_state = "propulsion_r"
/obj/machinery/power/shuttle_engine/propulsion/burst
name = "burst engine"
desc = "An engine that releases a large bluespace burst to propel it."
/obj/machinery/power/shuttle_engine/propulsion/burst/left
name = "left burst engine"
icon_state = "burst_l"
/obj/machinery/power/shuttle_engine/propulsion/burst/right
name = "right burst engine"
icon_state = "burst_r"
/obj/machinery/power/shuttle_engine/large
name = "engine"
icon = 'icons/obj/fluff/2x2.dmi'
icon_state = "large_engine"
desc = "A very large bluespace engine used to propel very large ships."
circuit = null
opacity = TRUE
bound_width = 64
bound_height = 64
appearance_flags = LONG_GLIDE
/obj/machinery/power/shuttle_engine/huge
name = "engine"
icon = 'icons/obj/fluff/3x3.dmi'
icon_state = "huge_engine"
desc = "An extremely large bluespace engine used to propel extremely large ships."
circuit = null
opacity = TRUE
bound_width = 96
bound_height = 96
appearance_flags = LONG_GLIDE
#undef ENGINE_UNWRENCHED
#undef ENGINE_WRENCHED
#undef ENGINE_WELDED
#undef ENGINE_WELDTIME
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