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kiwistation/code/modules/power/gravitygenerator.dm
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phil235 5f835bfc26 Obj damaging system, acid damage, and fire damage refactor (WIP) (#20793) 
Please refer to #20867 and #20870 for a easier view of the changes. Those two PRs show all meaningful changes (hopefully) and doesn't show the files changed with just 3 lines changed.

This PR does three things:

    It makes all children of /obj/ use the same damage system.
    Previously to make your new machine/structure be destroyable you needed to give it a var/health, and its own version of many damage related proc such as bullet_act(), take_damage(), attacked_by(), attack_animal(), attack_hulk(), ex_act(), etc... But now, all /obj/ use the same version of those procs at the /obj/ level in code/game/obj_defense.dm. All these obj share the same necessary vars: obj_integrity (health), max_integrity, integrity_failure (optional, below that health level failure happens), and the armor list var which was previously only for items, as well as the resistance_flags bitfield. When you want your new object to be destroyable, you only have to give it a value for those vars and maybe override one proc if you want a special behavior but that's it. This reorganization removes a lot of copypasta (most bullet_act() version for each obj were nearly identical). Two new elements are added to the armor list var: fire and acid armor values.
    How much damage an obj take depends on the armor value for each damage category. But some objects are INDESTRUCTIBLE and simply never take any damage no matter the type.
    The armor categories are:
    -melee(punches, item attacks, xeno/animal/hulk attacks, blob attacks, thrown weapons)
    -bullet
    -laser
    -energy (used by projectiles like ionrifle, taser, and also by EMPs)
    -bio (unused for this, only here because clothes use them when worn)
    -rad (same)
    -bomb (self-explanatory)
    -fire (for fire damage, not for heat damage though)
    -acid
    For machines and structures, when their health reaches zero the object is not just deleted but gets somewhat forcedeconstructed (the proc used is shared with the actual deconstruction system) which can drops things. To not frustrates players most of these objects drop most of the elements necessary to rebuild them (think window dropping shards). Machines drop a machine frame and all components for example (but the frame can then be itself smashed to pieces).
    For clothes, when they are damaged, they get a "damaged" overlay, which can also be seen when worn, similar to the "bloody" overlay.

    It refactors acid. See #20537.
    Some objects are ACID_PROOF and take no damage from acid, while others take varying amounts
    of damage depending on their acid armor value. Some objects are even UNACIDABLE, no acid effect can even land on them. Acid on objects can be washed off using water.

    It changes some aspect of damage from fires.
    All /obj/ can now take fire damage and be flammable, instead of just items. And instead of having just FLAMMABLE objs that become ON_FIRE as soon as some fire touch them (paper), we now have objects that are non flammable but do take damage from fire and become ashes if their health reaches zero (only for items). The damage taken varies depending on the obj's fire armor value and total health. There's also still obj and items that are FIRE_PROOF (although some might still be melted by lava if they're not LAVA_PROOF).
    When a mob is on fire, its clothes now take fire damage and can turn to ashes. Similarly, when a mob takes melee damages, its clothes gets damaged a bit and can turn to shreds. You can repair clothes with cloth that is produceable by botany's biogenerator.

    It also does many minor things:
        Clicking a structure/machine with an item on help intent never results in an attack (so you don't destroy a structure while trying to figure out which tool to use).
        I moved a lot of objects away from /obj/effect, it should only be used for visual effects, decals and stuff, not for things you can hit and destroy.
        I tweaked a bit how clothes shredding from bombs work.
        I made a machine or structure un/anchorable with the wrench, I don't remember which object...
        Since I changed the meaning of the FIRE_PROOF bitflag to actually mean fire immune, I'm buffing the slime extract that you apply on items to make them fire proof. well now they're really 100% fire proof!
        animals with environment_smash = 1 no longer one-hit destroy tables and stuff, we give them a decent obj_damage value so they can destroy most obj relatively fast depending on the animal.
        Probably a million things I forgot.

If you want to know how the damage system works all you need is the three obj vars "obj_integrity", "max_integrity", "integrity_failure", as well as the armor list var and the resistance_flags bitfield, and read the file obj_defense.dm
2016-10-10 11:14:59 +13:00

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//
// Gravity Generator
//
var/list/gravity_generators = list() // We will keep track of this by adding new gravity generators to the list, and keying it with the z level.
var/const/POWER_IDLE = 0
var/const/POWER_UP = 1
var/const/POWER_DOWN = 2
var/const/GRAV_NEEDS_SCREWDRIVER = 0
var/const/GRAV_NEEDS_WELDING = 1
var/const/GRAV_NEEDS_PLASTEEL = 2
var/const/GRAV_NEEDS_WRENCH = 3
//
// Abstract Generator
//
/obj/machinery/gravity_generator
name = "gravitational generator"
desc = "A device which produces a gravaton field when set up."
icon = 'icons/obj/machines/gravity_generator.dmi'
anchored = 1
density = 1
use_power = 0
resistance_flags = INDESTRUCTIBLE | LAVA_PROOF | FIRE_PROOF | UNACIDABLE | ACID_PROOF
var/sprite_number = 0
/obj/machinery/gravity_generator/ex_act(severity, target)
if(severity == 1) // Very sturdy.
set_broken()
/obj/machinery/gravity_generator/blob_act(obj/structure/blob/B)
if(prob(20))
set_broken()
/obj/machinery/gravity_generator/tesla_act(var/power)
..()
qdel(src)//like the singulo, tesla deletes it. stops it from exploding over and over
/obj/machinery/gravity_generator/update_icon()
..()
icon_state = "[get_status()]_[sprite_number]"
//prevents shuttles attempting to rotate this since it messes up sprites
/obj/machinery/gravity_generator/shuttleRotate()
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()
stat |= BROKEN
/obj/machinery/gravity_generator/proc/set_fix()
stat &= ~BROKEN
/obj/machinery/gravity_generator/part/Destroy()
set_broken()
if(main_part)
qdel(main_part)
return ..()
//
// Part generator which is mostly there for looks
//
/obj/machinery/gravity_generator/part
var/obj/machinery/gravity_generator/main/main_part = null
/obj/machinery/gravity_generator/part/attackby(obj/item/I, mob/user, params)
return main_part.attackby(I, user)
/obj/machinery/gravity_generator/part/get_status()
return main_part.get_status()
/obj/machinery/gravity_generator/part/attack_hand(mob/user)
return main_part.attack_hand(user)
/obj/machinery/gravity_generator/part/set_broken()
..()
if(main_part && !(main_part.stat & BROKEN))
main_part.set_broken()
//
// Generator which spawns with the station.
//
/obj/machinery/gravity_generator/main/station/initialize()
setup_parts()
middle.add_overlay("activated")
update_list()
//
// Generator an admin can spawn
//
/obj/machinery/gravity_generator/main/station/admin
use_power = 0
/obj/machinery/gravity_generator/main/station/admin/New()
..()
initialize()
//
// Main Generator with the main code
//
/obj/machinery/gravity_generator/main
icon_state = "on_8"
idle_power_usage = 0
active_power_usage = 3000
power_channel = ENVIRON
sprite_number = 8
use_power = 1
interact_offline = 1
var/on = 1
var/breaker = 1
var/list/parts = list()
var/obj/middle = null
var/charging_state = POWER_IDLE
var/charge_count = 100
var/current_overlay = null
var/broken_state = 0
/obj/machinery/gravity_generator/main/Destroy() // If we somehow get deleted, remove all of our other parts.
investigate_log("was destroyed!", "gravity")
on = 0
update_list()
for(var/obj/machinery/gravity_generator/part/O in parts)
O.main_part = null
qdel(O)
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 = block(locate(our_turf.x - 1, our_turf.y + 2, our_turf.z), locate(our_turf.x + 1, our_turf.y, our_turf.z))
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
middle = part
if(count <= 3) // Their sprite is the top part of the generator
part.density = 0
part.layer = WALL_OBJ_LAYER
part.sprite_number = count
part.main_part = src
parts += part
part.update_icon()
/obj/machinery/gravity_generator/main/proc/connected_parts()
return parts.len == 8
/obj/machinery/gravity_generator/main/set_broken()
..()
for(var/obj/machinery/gravity_generator/M in parts)
if(!(M.stat & BROKEN))
M.set_broken()
middle.cut_overlays()
charge_count = 0
breaker = 0
set_power()
set_state(0)
investigate_log("has broken down.", "gravity")
/obj/machinery/gravity_generator/main/set_fix()
..()
for(var/obj/machinery/gravity_generator/M in parts)
if(M.stat & BROKEN)
M.set_fix()
broken_state = 0
update_icon()
set_power()
// Interaction
// Fixing the gravity generator.
/obj/machinery/gravity_generator/main/attackby(obj/item/I, mob/user, params)
switch(broken_state)
if(GRAV_NEEDS_SCREWDRIVER)
if(istype(I, /obj/item/weapon/screwdriver))
user << "<span class='notice'>You secure the screws of the framework.</span>"
playsound(src.loc, 'sound/items/Screwdriver.ogg', 50, 1)
broken_state++
update_icon()
return
if(GRAV_NEEDS_WELDING)
if(istype(I, /obj/item/weapon/weldingtool))
var/obj/item/weapon/weldingtool/WT = I
if(WT.remove_fuel(1, user))
user << "<span class='notice'>You mend the damaged framework.</span>"
playsound(src.loc, 'sound/items/Welder2.ogg', 50, 1)
broken_state++
update_icon()
else if(WT.isOn())
user << "<span class='warning'>You don't have enough fuel to mend the damaged framework!</span>"
return
if(GRAV_NEEDS_PLASTEEL)
if(istype(I, /obj/item/stack/sheet/plasteel))
var/obj/item/stack/sheet/plasteel/PS = I
if(PS.get_amount() >= 10)
PS.use(10)
user << "<span class='notice'>You add the plating to the framework.</span>"
playsound(src.loc, 'sound/machines/click.ogg', 75, 1)
broken_state++
update_icon()
else
user << "<span class='warning'>You need 10 sheets of plasteel!</span>"
return
if(GRAV_NEEDS_WRENCH)
if(istype(I, /obj/item/weapon/wrench))
user << "<span class='notice'>You secure the plating to the framework.</span>"
playsound(src.loc, 'sound/items/Ratchet.ogg', 75, 1)
set_fix()
return
return ..()
/obj/machinery/gravity_generator/main/attack_hand(mob/user)
if(!..())
return interact(user)
/obj/machinery/gravity_generator/main/interact(mob/user)
if(stat & BROKEN)
return
var/dat = "Gravity Generator Breaker: "
if(breaker)
dat += "<span class='linkOn'>ON</span> <A href='?src=\ref[src];gentoggle=1'>OFF</A>"
else
dat += "<A href='?src=\ref[src];gentoggle=1'>ON</A> <span class='linkOn'>OFF</span> "
dat += "<br>Generator Status:<br><div class='statusDisplay'>"
if(charging_state != POWER_IDLE)
dat += "<font class='bad'>WARNING</font> Radiation Detected. <br>[charging_state == POWER_UP ? "Charging..." : "Discharging..."]"
else if(on)
dat += "Powered."
else
dat += "Unpowered."
dat += "<br>Gravity Charge: [charge_count]%</div>"
var/datum/browser/popup = new(user, "gravgen", name)
popup.set_content(dat)
popup.open()
/obj/machinery/gravity_generator/main/Topic(href, href_list)
if(..())
return
if(href_list["gentoggle"])
breaker = !breaker
investigate_log("was toggled [breaker ? "<font color='green'>ON</font>" : "<font color='red'>OFF</font>"] by [usr.key].", "gravity")
set_power()
src.updateUsrDialog()
// Power and Icon States
/obj/machinery/gravity_generator/main/power_change()
..()
investigate_log("has [stat & NOPOWER ? "lost" : "regained"] power.", "gravity")
set_power()
/obj/machinery/gravity_generator/main/get_status()
if(stat & BROKEN)
return "fix[min(broken_state, 3)]"
return on || charging_state != POWER_IDLE ? "on" : "off"
/obj/machinery/gravity_generator/main/update_icon()
..()
for(var/obj/O in parts)
O.update_icon()
// Set the charging state based on power/breaker.
/obj/machinery/gravity_generator/main/proc/set_power()
var/new_state = 0
if(stat & (NOPOWER|BROKEN) || !breaker)
new_state = 0
else if(breaker)
new_state = 1
charging_state = new_state ? POWER_UP : POWER_DOWN // Startup sequence animation.
investigate_log("is now [charging_state == POWER_UP ? "charging" : "discharging"].", "gravity")
update_icon()
// Set the state of the gravity.
/obj/machinery/gravity_generator/main/proc/set_state(new_state)
charging_state = POWER_IDLE
on = new_state
use_power = on ? 2 : 1
// Sound the alert if gravity was just enabled or disabled.
var/alert = 0
var/area/area = get_area(src)
if(on && ticker && ticker.current_state == GAME_STATE_PLAYING) // If we turned on and the game is live.
if(gravity_in_level() == 0)
alert = 1
investigate_log("was brought online and is now producing gravity for this level.", "gravity")
message_admins("The gravity generator was brought online. (<A HREF='?_src_=holder;adminplayerobservecoodjump=1;X=[x];Y=[y];Z=[z]'>[area.name]</a>)")
else
if(gravity_in_level() == 1)
alert = 1
investigate_log("was brought offline and there is now no gravity for this level.", "gravity")
message_admins("The gravity generator was brought offline with no backup generator. (<A HREF='?_src_=holder;adminplayerobservecoodjump=1;X=[x];Y=[y];Z=[z]'>[area.name]</a>)")
update_icon()
update_list()
src.updateUsrDialog()
if(alert)
shake_everyone()
// Charge/Discharge and turn on/off gravity when you reach 0/100 percent.
// Also emit radiation and handle the overlays.
/obj/machinery/gravity_generator/main/process()
if(stat & BROKEN)
return
if(charging_state != POWER_IDLE)
if(charging_state == POWER_UP && charge_count >= 100)
set_state(1)
else if(charging_state == POWER_DOWN && charge_count <= 0)
set_state(0)
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, 1)
updateDialog()
if(prob(25)) // To help stop "Your clothes feel warm." spam.
pulse_radiation()
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(middle)
middle.cut_overlays()
if(overlay_state)
middle.add_overlay(overlay_state)
current_overlay = overlay_state
/obj/machinery/gravity_generator/main/proc/pulse_radiation()
radiation_pulse(get_turf(src), 3, 7, 20)
// Shake everyone on the z level to let them know that gravity was enagaged/disenagaged.
/obj/machinery/gravity_generator/main/proc/shake_everyone()
var/turf/T = get_turf(src)
for(var/mob/M in mob_list)
if(M.z != z)
continue
M.update_gravity(M.mob_has_gravity())
if(M.client)
shake_camera(M, 15, 1)
M.playsound_local(T, 'sound/effects/alert.ogg', 100, 1, 0.5)
/obj/machinery/gravity_generator/main/proc/gravity_in_level()
var/turf/T = get_turf(src)
if(!T)
return 0
if(gravity_generators["[T.z]"])
return length(gravity_generators["[T.z]"])
return 0
/obj/machinery/gravity_generator/main/proc/update_list()
var/turf/T = get_turf(src.loc)
if(T)
if(!gravity_generators["[T.z]"])
gravity_generators["[T.z]"] = list()
if(on)
gravity_generators["[T.z]"] |= src
else
gravity_generators["[T.z]"] -= src
// Misc
/obj/item/weapon/paper/gravity_gen
name = "paper- 'Generate your own gravity!'"
info = {"<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 but you must remember that the generator
will EMIT RADIATION when charging or discharging, you can tell it is charging or discharging by the noise it makes, so please WEAR PROTECTIVE CLOTHING.</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>"}
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