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Bubberstation/code/datums/elements/volatile_gas_storage.dm
Alexis 21b4095dfd [MDB IGNORE] [IDB IGNORE] Upstream Sync - 04/17/2026 (#5453)
Upstream 04/17/2026

fixes https://github.com/Bubberstation/Bubberstation/issues/5549

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2026-05-16 00:56:00 +02:00

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/// An element to make an /obj explode based on gas pressure when broken
/datum/element/volatile_gas_storage
element_flags = ELEMENT_BESPOKE
argument_hash_start_idx = 2
/// The minimum pressure of the gas storage to consider an explosion when broken
var/minimum_explosive_pressure
/// The max pressure to stop scaling the explosion at, you can go higher but the explosion range will stay at max
var/max_explosive_pressure
/// The max explsion range at the max pressure
var/max_explosive_force
/datum/element/volatile_gas_storage/Attach(datum/target, minimum_explosive_pressure=5000, max_explosive_pressure=100000, max_explosive_force=9)
. = ..()
if(istype(target, /obj/machinery/atmospherics/components))
RegisterSignal(target, COMSIG_ATOM_BREAK, PROC_REF(AtmosComponentBreak))
else if(isobj(target))
RegisterSignal(target, COMSIG_ATOM_BREAK, PROC_REF(ObjBreak))
else
return ELEMENT_INCOMPATIBLE
src.minimum_explosive_pressure = minimum_explosive_pressure
src.max_explosive_pressure = max_explosive_pressure
src.max_explosive_force = max_explosive_force
/datum/element/volatile_gas_storage/Detach(datum/source, ...)
. = ..()
UnregisterSignal(source, COMSIG_ATOM_BREAK)
/datum/element/volatile_gas_storage/proc/Break(atom/origin, datum/gas_mixture/released_gas)
var/expelled_pressure = min(released_gas?.return_pressure(), max_explosive_pressure)
if(expelled_pressure < minimum_explosive_pressure)
return
var/explosive_force = ceil((expelled_pressure / max_explosive_pressure) * max_explosive_force )
// This is supposed to represent only shrapnel and no fire
// Maybe one day we'll get something a bit better
explosion(get_turf(origin), light_impact_range=explosive_force, smoke=FALSE, explosion_cause = origin)
/datum/element/volatile_gas_storage/proc/AtmosComponentBreak(obj/machinery/atmospherics/components/owner)
SIGNAL_HANDLER
for(var/datum/gas_mixture/gas_contents as anything in owner.airs)
if(!gas_contents)
continue
Break(owner, gas_contents)
/datum/element/volatile_gas_storage/proc/ObjBreak(obj/owner)
SIGNAL_HANDLER
Break(owner, owner.return_air())