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CHOMPStation2/code/modules/overmap/ships/engines/thermal.dm

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//Thermal nozzle engine
/datum/ship_engine/thermal
name = "thermal engine"
/datum/ship_engine/thermal/get_status()
..()
var/obj/machinery/atmospherics/unary/engine/E = engine
return "Fuel pressure: [E.air_contents.return_pressure()]"
/datum/ship_engine/thermal/get_thrust()
..()
var/obj/machinery/atmospherics/unary/engine/E = engine
if(!is_on())
return 0
var/pressurized_coef = E.air_contents.return_pressure()/E.effective_pressure
return round(E.thrust_limit * E.nominal_thrust * pressurized_coef)
/datum/ship_engine/thermal/burn()
..()
var/obj/machinery/atmospherics/unary/engine/E = engine
return E.burn()
/datum/ship_engine/thermal/set_thrust_limit(var/new_limit)
..()
var/obj/machinery/atmospherics/unary/engine/E = engine
E.thrust_limit = new_limit
/datum/ship_engine/thermal/get_thrust_limit()
..()
var/obj/machinery/atmospherics/unary/engine/E = engine
return E.thrust_limit
/datum/ship_engine/thermal/is_on()
..()
var/obj/machinery/atmospherics/unary/engine/E = engine
return E.on
/datum/ship_engine/thermal/toggle()
..()
var/obj/machinery/atmospherics/unary/engine/E = engine
E.on = !E.on
//Actual thermal nozzle engine object
/obj/machinery/atmospherics/unary/engine
name = "engine nozzle"
desc = "Simple thermal nozzle, uses heated gast to propell the ship."
icon = 'icons/obj/ship_engine.dmi'
icon_state = "nozzle"
var/on = 1
var/thrust_limit = 1 //Value between 1 and 0 to limit the resulting thrust
var/nominal_thrust = 3000
var/effective_pressure = 3000
var/datum/ship_engine/thermal/controller
/obj/machinery/atmospherics/unary/engine/Initialize()
. = ..()
controller = new(src)
/obj/machinery/atmospherics/unary/engine/Destroy()
..()
controller.die()
/obj/machinery/atmospherics/unary/engine/proc/burn()
if (!on)
return
if(air_contents.temperature > 0)
var/transfer_moles = 100 * air_contents.volume/max(air_contents.temperature * R_IDEAL_GAS_EQUATION, 0,01)
transfer_moles = round(thrust_limit * transfer_moles, 0.01)
if(transfer_moles > air_contents.total_moles)
on = !on
return 0
var/datum/gas_mixture/removed = air_contents.remove(transfer_moles)
loc.assume_air(removed)
if(air_contents.temperature > PHORON_MINIMUM_BURN_TEMPERATURE)
var/exhaust_dir = reverse_direction(dir)
var/turf/T = get_step(src,exhaust_dir)
if(T)
new/obj/effect/engine_exhaust(T,exhaust_dir,air_contents.temperature)
return 1
//Exhaust effect
/obj/effect/engine_exhaust
name = "engine exhaust"
icon = 'icons/effects/effects.dmi'
icon_state = "exhaust"
anchored = 1
New(var/turf/nloc, var/ndir, var/temp)
set_dir(ndir)
..(nloc)
if(nloc)
nloc.hotspot_expose(temp,125)
spawn(20)
loc = null