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Bubberstation/code/modules/power/gravitygenerator.dm
Time-Green 42543ac141 NEW STATION TRAIT: Radioactive Nebula (#76825) 
## About The Pull Request

Adds a new station trait: Radioactive Nebula!

The station is located inside a radioactive nebula. Space background and
lighting is different shades of green. Objects in space will also glow
green. (This is kinda lying, since the glowing stuff isn't radioactive,
you just get an element that slowly irradiates you, though people and
certain objects that get the 'IRRADIATED' status may still double-whammy
you)

Do not go into space without rad-protected gear, or you will get very
sick very fast. RAD-protection MODsuit modules spawn in robotics and are
also immediately researched.

The nebula does protect against external threats, like pirates, ninja's
and nukies. They can still get to the station pretty well, but they
can't stay in space for extended periods of time

To make it more livable, public rad protection gear will spawn in
lockers around the station. Everyone will also spawn with potassium
iodide pills in their emergency box. Dynamics threat is also reduced by
30, so there's a proclivity towards more lower threat rounds when the
radioactive nebula is present. Radioactive resonance virus cannot be
generated though, since it kinda obliterates any and all challenge and
threat


![image](https://github.com/tgstation/tgstation/assets/7501474/8eedcb85-1bb8-4e87-a794-d6781fee680d)

**Shielding**


![image](https://github.com/tgstation/tgstation/assets/7501474/ae1b25d7-6fbd-4a86-8c95-5947b1122632)

In order to protect the station from radiation, nebula shielding units
need to be constructed. Five spawn ready-to-built in engineering, and
more can be bought pretty cheap from cargo. (Normal radstorms are
disabled)

The gravity generator has 20 minutes of innate shielding, where every
nebula shielding unit adds another 20 minutes. 5 are needed to
completely block all radiation even when the gravity gen is down, but
constructing more is recommended in-case of sabotage/destructions/power
outtages.

Active nebula shielding will passively generate tritium. You can either
vent/ignore this, or use it for something. I'm not an atmos tech but I'm
sure you can do something with it

_What happens when no shielding units are constructed/they all fail?_
The station will suffer a 5 minute long radiation storm, with only
shuttles being excempt. The storm is nerfed strongly, and you can tank
the 5 minutes, but you'll be pretty sick. After the 5 minutes are over,
central command will send an emergency shielding unit which will block
the radiation for 10 minutes and warn the station to set up nebula
shielding.


## Why It's Good For The Game
The station being inside a radioactive nebula shakes up a pretty major
aspect of the game (that being the 'space' in space station 13). Hallway
decals are colored green, display screens will display radiation
markings, carps blend with the nebula, etc. Putting the station inside a
radioactive nebula shakes up the rules of the game and what people can
expect. Suddenly, you can no longer just go outside without taking meds
or getting proper radiation protection, encouraging people to stay cozy
and inside.


![image](https://github.com/tgstation/tgstation/assets/7501474/40112936-8514-47f7-b3e0-b1c782b6a0a6)

Inside, the crew gets the goal to set-up radiation shielding to defend
themselves against the nebula, rewarding a creative engineering
department with passive resource income and protecting the station
against massive radiation storms. I think it's nice to give engineering
something to set up. Even if they don't care, they can just plop it down
somewhere in a closed room and be done with it.

The radiation storm is pretty aggressive, but very survivable if you use
your potassium iodide pills, the extra radiation suits or whatever
chemistry has whipped up.

Most importantly, it gives the entire station a common enemy: the
nebula. Everyone is encouraged to prepare against the mechanics.
Chemistry can make meds, viro can make protective virusses, robotics
gets encouraged to make radprotected MODsuits, engineering gets to
set-up radiation shielding, assistants can look at space or whatever
assistants do.


<details>
  <summary>Cool images</summary>


![image](https://github.com/tgstation/tgstation/assets/7501474/387f2d75-8ba6-425b-8f0f-9423cf7aab19)


![image](https://github.com/tgstation/tgstation/assets/7501474/eb65de97-13ce-4ce9-8902-4144994d217f)


![image](https://github.com/tgstation/tgstation/assets/7501474/60b915a5-8549-4a3b-afe6-f0e823207883)


![image](https://github.com/tgstation/tgstation/assets/7501474/239ae614-8d26-4b77-936f-1d2baa38d32c)

  
</details>

## Changelog

🆑
add: Adds a new rare radioactive nebula station trait! Get ready and
PREPARE, before it gets in...
tweak: Nearstation space area lighting may look slightly different
/🆑

---------

Co-authored-by: MrMelbert <51863163+MrMelbert@users.noreply.github.com>
Co-authored-by: Mothblocks <35135081+Mothblocks@users.noreply.github.com>
Co-authored-by: Jacquerel <hnevard@gmail.com>
2023-07-21 16:51:15 +01:00

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//
// Gravity Generator
//
/// We will keep track of this by adding new gravity generators to the list, and keying it with the z level.
GLOBAL_LIST_EMPTY(gravity_generators)
#define POWER_IDLE 0
#define POWER_UP 1
#define POWER_DOWN 2
#define GRAV_NEEDS_SCREWDRIVER 0
#define GRAV_NEEDS_WELDING 1
#define GRAV_NEEDS_PLASTEEL 2
#define GRAV_NEEDS_WRENCH 3
//
// Abstract Generator
//
/obj/machinery/gravity_generator
name = "gravitational generator"
desc = "A device which produces a graviton field when set up."
icon = 'icons/obj/machines/gravity_generator.dmi'
density = TRUE
move_resist = INFINITY
use_power = NO_POWER_USE
resistance_flags = INDESTRUCTIBLE | LAVA_PROOF | FIRE_PROOF | UNACIDABLE | ACID_PROOF
var/sprite_number = 0
/obj/machinery/gravity_generator/safe_throw_at(atom/target, range, speed, mob/thrower, spin = TRUE, diagonals_first = FALSE, datum/callback/callback, force = MOVE_FORCE_STRONG, gentle = FALSE)
return FALSE
/obj/machinery/gravity_generator/ex_act(severity, target)
if(severity >= EXPLODE_DEVASTATE) // Very sturdy.
set_broken()
return TRUE
return FALSE
/obj/machinery/gravity_generator/blob_act(obj/structure/blob/B)
if(prob(20))
set_broken()
/obj/machinery/gravity_generator/zap_act(power, zap_flags)
. = ..()
if(zap_flags & ZAP_MACHINE_EXPLOSIVE)
qdel(src)//like the singulo, tesla deletes it. stops it from exploding over and over
/obj/machinery/gravity_generator/update_icon_state()
icon_state = "[get_status()]_[sprite_number]"
return ..()
/obj/machinery/gravity_generator/proc/get_status()
return "off"
// You aren't allowed to move.
/obj/machinery/gravity_generator/Move()
. = ..()
qdel(src)
/obj/machinery/gravity_generator/proc/set_broken()
atom_break()
/obj/machinery/gravity_generator/proc/set_fix()
set_machine_stat(machine_stat & ~BROKEN)
/**
* Generator part
*
* Parts of the gravity generator used to have a proper sprite.
*/
/obj/machinery/gravity_generator/part
var/obj/machinery/gravity_generator/main/main_part
/obj/machinery/gravity_generator/part/Destroy()
atom_break()
if(main_part)
UnregisterSignal(main_part, COMSIG_ATOM_UPDATED_ICON)
main_part = null
return ..()
/obj/machinery/gravity_generator/part/attackby(obj/item/weapon, mob/user, params)
if(!main_part)
return
return main_part.attackby(weapon, user)
/obj/machinery/gravity_generator/part/get_status()
if(!main_part)
return
return main_part.get_status()
/obj/machinery/gravity_generator/part/attack_hand(mob/user, list/modifiers)
if(!main_part)
return
return main_part.attack_hand(user, modifiers)
/obj/machinery/gravity_generator/part/set_broken()
..()
if(!main_part || (main_part.machine_stat & BROKEN))
return
main_part.set_broken()
/// Used to eat args
/obj/machinery/gravity_generator/part/proc/on_update_icon(obj/machinery/gravity_generator/source, updates, updated)
SIGNAL_HANDLER
return update_appearance(updates)
/**
* Main gravity generator
*
* The actual gravity generator, that actually holds the UI, contains the grav gen parts, ect.
*/
/obj/machinery/gravity_generator/main
icon_state = "on_8"
idle_power_usage = 0
active_power_usage = BASE_MACHINE_ACTIVE_CONSUMPTION * 3
power_channel = AREA_USAGE_ENVIRON
sprite_number = 8
use_power = IDLE_POWER_USE
interaction_flags_machine = INTERACT_MACHINE_ALLOW_SILICON | INTERACT_MACHINE_OFFLINE
/// List of all gravity generator parts
var/list/generator_parts = list()
/// The gravity generator part in the very center, the fifth one, where we place the overlays.
var/obj/machinery/gravity_generator/part/center_part
/// Whether the gravity generator is currently active.
var/on = TRUE
/// If the main breaker is on/off, to enable/disable gravity.
var/breaker = TRUE
/// If the generatir os idle, charging, or down.
var/charging_state = POWER_IDLE
/// How much charge the gravity generator has, goes down when breaker is shut, and shuts down at 0.
var/charge_count = 100
/// The gravity overlay currently used.
var/current_overlay = null
/// When broken, what stage it is at (GRAV_NEEDS_SCREWDRIVER:0) (GRAV_NEEDS_WELDING:1) (GRAV_NEEDS_PLASTEEL:2) (GRAV_NEEDS_WRENCH:3)
var/broken_state = GRAV_NEEDS_SCREWDRIVER
/// Gravity value when on, honestly I don't know why it does it like this, but it does.
var/setting = 1
/// The gravity field created by the generator.
var/datum/proximity_monitor/advanced/gravity/gravity_field
/// Audio for when the gravgen is on
var/datum/looping_sound/gravgen/soundloop
///Amount of shielding we offer against a radioactive nebula
var/radioactive_nebula_shielding = 4
///Station generator that spawns with gravity turned off.
/obj/machinery/gravity_generator/main/off
on = FALSE
breaker = FALSE
charge_count = 0
/obj/machinery/gravity_generator/main/Initialize(mapload)
. = ..()
soundloop = new(src, start_immediately = FALSE)
setup_parts()
if(on)
enable()
center_part.add_overlay("activated")
add_to_nebula_shielding(src, /datum/station_trait/nebula/hostile/radiation, PROC_REF(get_radioactive_nebula_shielding))
/obj/machinery/gravity_generator/main/Destroy() // If we somehow get deleted, remove all of our other parts.
investigate_log("was destroyed!", INVESTIGATE_GRAVITY)
disable()
QDEL_NULL(soundloop)
QDEL_NULL(center_part)
QDEL_LIST(generator_parts)
return ..()
/obj/machinery/gravity_generator/main/proc/setup_parts()
var/turf/our_turf = get_turf(src)
// 9x9 block obtained from the bottom middle of the block
var/list/spawn_turfs = CORNER_BLOCK_OFFSET(our_turf, 3, 3, -1, 0)
var/count = 10
for(var/turf/T in spawn_turfs)
count--
if(T == our_turf) // Skip our turf.
continue
var/obj/machinery/gravity_generator/part/part = new(T)
if(count == 5) // Middle
center_part = part
if(count <= 3) // Their sprite is the top part of the generator
part.set_density(FALSE)
part.layer = WALL_OBJ_LAYER
SET_PLANE(part, GAME_PLANE_UPPER, our_turf)
part.sprite_number = count
part.main_part = src
generator_parts += part
part.update_appearance()
part.RegisterSignal(src, COMSIG_ATOM_UPDATED_ICON, TYPE_PROC_REF(/obj/machinery/gravity_generator/part, on_update_icon))
/obj/machinery/gravity_generator/main/set_broken()
. = ..()
for(var/obj/machinery/gravity_generator/internal_parts as anything in generator_parts)
if(!(internal_parts.machine_stat & BROKEN))
internal_parts.set_broken()
center_part.cut_overlays()
charge_count = 0
breaker = FALSE
set_power()
disable()
investigate_log("has broken down.", INVESTIGATE_GRAVITY)
/obj/machinery/gravity_generator/main/set_fix()
. = ..()
for(var/obj/machinery/gravity_generator/internal_parts as anything in generator_parts)
if(internal_parts.machine_stat & BROKEN)
internal_parts.set_fix()
broken_state = FALSE
update_appearance()
set_power()
// Interaction
/obj/machinery/gravity_generator/main/examine(mob/user)
. = ..()
if(!(machine_stat & BROKEN))
return
switch(broken_state)
if(GRAV_NEEDS_SCREWDRIVER)
. += span_notice("The entire frame is barely holding together, the <b>screws</b> need to be refastened.")
if(GRAV_NEEDS_WELDING)
. += span_notice("There's lots of broken seals on the framework, it could use some <b>welding</b>.")
if(GRAV_NEEDS_PLASTEEL)
. += span_notice("Some of this damaged plating needs full replacement. <b>10 plasteel</> should be enough.")
if(GRAV_NEEDS_WRENCH)
. += span_notice("The new plating just needs to be <b>bolted</b> into place now.")
// Fixing the gravity generator.
/obj/machinery/gravity_generator/main/attackby(obj/item/weapon, mob/user, params)
if(machine_stat & BROKEN)
switch(broken_state)
if(GRAV_NEEDS_SCREWDRIVER)
if(weapon.tool_behaviour == TOOL_SCREWDRIVER)
to_chat(user, span_notice("You secure the screws of the framework."))
weapon.play_tool_sound(src)
broken_state++
update_appearance()
return
if(GRAV_NEEDS_WELDING)
if(weapon.tool_behaviour == TOOL_WELDER)
if(weapon.use_tool(src, user, 0, volume=50))
to_chat(user, span_notice("You mend the damaged framework."))
broken_state++
update_appearance()
return
if(GRAV_NEEDS_PLASTEEL)
if(istype(weapon, /obj/item/stack/sheet/plasteel))
var/obj/item/stack/sheet/plasteel/PS = weapon
if(PS.get_amount() >= 10)
PS.use(10)
to_chat(user, span_notice("You add the plating to the framework."))
playsound(src.loc, 'sound/machines/click.ogg', 75, TRUE)
broken_state++
update_appearance()
else
to_chat(user, span_warning("You need 10 sheets of plasteel!"))
return
if(GRAV_NEEDS_WRENCH)
if(weapon.tool_behaviour == TOOL_WRENCH)
to_chat(user, span_notice("You secure the plating to the framework."))
weapon.play_tool_sound(src)
set_fix()
return
return ..()
/obj/machinery/gravity_generator/main/ui_interact(mob/user, datum/tgui/ui)
ui = SStgui.try_update_ui(user, src, ui)
if(!ui)
ui = new(user, src, "GravityGenerator", name)
ui.open()
/obj/machinery/gravity_generator/main/ui_data(mob/user)
var/list/data = list()
data["breaker"] = breaker
data["charge_count"] = charge_count
data["charging_state"] = charging_state
data["on"] = on
data["operational"] = (machine_stat & BROKEN) ? FALSE : TRUE
return data
/obj/machinery/gravity_generator/main/ui_act(action, params)
. = ..()
if(.)
return
switch(action)
if("gentoggle")
breaker = !breaker
investigate_log("was toggled [breaker ? "<font color='green'>ON</font>" : "<font color='red'>OFF</font>"] by [key_name(usr)].", INVESTIGATE_GRAVITY)
set_power()
. = TRUE
// Power and Icon States
/obj/machinery/gravity_generator/main/power_change()
. = ..()
if(SSticker.current_state == GAME_STATE_PLAYING)
investigate_log("has [machine_stat & NOPOWER ? "lost" : "regained"] power.", INVESTIGATE_GRAVITY)
set_power()
/obj/machinery/gravity_generator/main/get_status()
if(machine_stat & BROKEN)
return "fix[min(broken_state, 3)]"
return on || charging_state != POWER_IDLE ? "on" : "off"
// Set the charging state based on power/breaker.
/obj/machinery/gravity_generator/main/proc/set_power()
var/new_state = FALSE
if(machine_stat & (NOPOWER|BROKEN) || !breaker)
new_state = FALSE
else if(breaker)
new_state = TRUE
charging_state = new_state ? POWER_UP : POWER_DOWN // Startup sequence animation.
if(SSticker.current_state == GAME_STATE_PLAYING)
investigate_log("is now [charging_state == POWER_UP ? "charging" : "discharging"].", INVESTIGATE_GRAVITY)
update_appearance()
/obj/machinery/gravity_generator/main/proc/enable()
charging_state = POWER_IDLE
on = TRUE
update_use_power(ACTIVE_POWER_USE)
soundloop.start()
var/old_gravity = gravity_in_level()
complete_state_update()
gravity_field = new(src, 2, TRUE, 6)
if (!old_gravity)
if(SSticker.current_state == GAME_STATE_PLAYING)
investigate_log("was brought online and is now producing gravity for this level.", INVESTIGATE_GRAVITY)
message_admins("The gravity generator was brought online [ADMIN_VERBOSEJMP(src)]")
shake_everyone()
/obj/machinery/gravity_generator/main/proc/disable()
charging_state = POWER_IDLE
on = FALSE
update_use_power(IDLE_POWER_USE)
soundloop.stop()
QDEL_NULL(gravity_field)
var/old_gravity = gravity_in_level()
complete_state_update()
if (old_gravity)
if(SSticker.current_state == GAME_STATE_PLAYING)
investigate_log("was brought offline and there is now no gravity for this level.", INVESTIGATE_GRAVITY)
message_admins("The gravity generator was brought offline with no backup generator. [ADMIN_VERBOSEJMP(src)]")
shake_everyone()
/obj/machinery/gravity_generator/main/proc/complete_state_update()
update_appearance()
update_list()
// Charge/Discharge and turn on/off gravity when you reach 0/100 percent.
/obj/machinery/gravity_generator/main/process()
if(machine_stat & BROKEN)
return
if(charging_state == POWER_IDLE)
return
if(charging_state == POWER_UP && charge_count >= 100)
enable()
else if(charging_state == POWER_DOWN && charge_count <= 0)
disable()
else
if(charging_state == POWER_UP)
charge_count += 2
else if(charging_state == POWER_DOWN)
charge_count -= 2
if(charge_count % 4 == 0 && prob(75)) // Let them know it is charging/discharging.
playsound(src.loc, 'sound/effects/empulse.ogg', 100, TRUE)
var/overlay_state = null
switch(charge_count)
if(0 to 20)
overlay_state = null
if(21 to 40)
overlay_state = "startup"
if(41 to 60)
overlay_state = "idle"
if(61 to 80)
overlay_state = "activating"
if(81 to 100)
overlay_state = "activated"
if(overlay_state != current_overlay)
if(center_part)
center_part.cut_overlays()
if(overlay_state)
center_part.add_overlay(overlay_state)
current_overlay = overlay_state
/// Shake everyone on the z level to let them know that gravity was enagaged/disengaged.
/obj/machinery/gravity_generator/main/proc/shake_everyone()
var/turf/T = get_turf(src)
var/sound/alert_sound = sound('sound/effects/alert.ogg')
for(var/mob/mobs as anything in GLOB.mob_list)
var/turf/mob_turf = get_turf(mobs)
if(!istype(mob_turf))
continue
if(!is_valid_z_level(T, mob_turf))
continue
if(isliving(mobs))
var/mob/living/grav_update = mobs
grav_update.refresh_gravity()
if(mobs.client)
shake_camera(mobs, 15, 1)
mobs.playsound_local(T, null, 100, 1, 0.5, sound_to_use = alert_sound)
/obj/machinery/gravity_generator/main/proc/gravity_in_level()
var/turf/T = get_turf(src)
if(!T)
return FALSE
if(GLOB.gravity_generators["[T.z]"])
return length(GLOB.gravity_generators["[T.z]"])
return FALSE
/obj/machinery/gravity_generator/main/proc/update_list()
var/turf/T = get_turf(src)
if(!T)
return
var/list/z_list = list()
// Multi-Z, station gravity generator generates gravity on all ZTRAIT_STATION z-levels.
if(SSmapping.level_trait(T.z, ZTRAIT_STATION))
for(var/z in SSmapping.levels_by_trait(ZTRAIT_STATION))
z_list += z
else
z_list += T.z
for(var/z in z_list)
if(!GLOB.gravity_generators["[z]"])
GLOB.gravity_generators["[z]"] = list()
if(on)
GLOB.gravity_generators["[z]"] |= src
else
GLOB.gravity_generators["[z]"] -= src
SSmapping.calculate_z_level_gravity(z)
/obj/machinery/gravity_generator/main/proc/blackout()
charge_count = 0
breaker = FALSE
set_power()
disable()
investigate_log("was turned off by blackout event or a gravity anomaly detonation.", INVESTIGATE_GRAVITY)
/obj/machinery/gravity_generator/main/beforeShuttleMove(turf/newT, rotation, move_mode, obj/docking_port/mobile/moving_dock)
. = ..()
disable()
/obj/machinery/gravity_generator/main/afterShuttleMove(turf/oldT, list/movement_force, shuttle_dir, shuttle_preferred_direction, move_dir, rotation)
. = ..()
if(charge_count != 0 && charging_state != POWER_UP)
enable()
/obj/machinery/gravity_generator/main/on_changed_z_level(turf/old_turf, turf/new_turf, same_z_layer, notify_contents)
. = ..()
if(same_z_layer)
return
for(var/obj/machinery/gravity_generator/part as anything in generator_parts)
SET_PLANE(part, PLANE_TO_TRUE(part.plane), new_turf)
/// Returns the radioactive shielding (if there's a radioactive nebula). Called from a callback set in add_to_nebula_shielding()
/obj/machinery/gravity_generator/main/proc/get_radioactive_nebula_shielding()
return on ? radioactive_nebula_shielding : 0
//prevents shuttles attempting to rotate this since it messes up sprites
/obj/machinery/gravity_generator/main/shuttleRotate(rotation, params)
params = NONE
return ..()
// Misc
/// Gravity generator instruction guide
/obj/item/paper/guides/jobs/engi/gravity_gen
name = "paper- 'Generate your own gravity!'"
default_raw_text = {"<h1>Gravity Generator Instructions For Dummies</h1>
<p>Surprisingly, gravity isn't that hard to make! All you have to do is inject deadly radioactive minerals into a ball of
energy and you have yourself gravity! You can turn the machine on or off when required.
The generator produces a very harmful amount of gravity when enabled, so don't stay close for too long.</p>
<br>
<h3>It blew up!</h3>
<p>Don't panic! The gravity generator was designed to be easily repaired. If, somehow, the sturdy framework did not survive then
please proceed to panic; otherwise follow these steps.</p><ol>
<li>Secure the screws of the framework with a screwdriver.</li>
<li>Mend the damaged framework with a welding tool.</li>
<li>Add additional plasteel plating.</li>
<li>Secure the additional plating with a wrench.</li></ol>"}
#undef POWER_IDLE
#undef POWER_UP
#undef POWER_DOWN
#undef GRAV_NEEDS_PLASTEEL
#undef GRAV_NEEDS_SCREWDRIVER
#undef GRAV_NEEDS_WELDING
#undef GRAV_NEEDS_WRENCH
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