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Bubberstation/code/game/objects/structures/aliens.dm
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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/* Alien shit!
* Contains:
* structure/alien
* Resin
* Weeds
* Egg
*/
/obj/structure/alien
icon = 'icons/mob/alien.dmi'
obj_integrity = 100
max_integrity = 100
/obj/structure/alien/run_obj_armor(damage_amount, damage_type, damage_flag = 0, attack_dir)
if(damage_flag == "melee")
switch(damage_type)
if(BRUTE)
damage_amount *= 0.25
if(BURN)
damage_amount *= 2
. = ..()
/obj/structure/alien/play_attack_sound(damage_amount, damage_type = BRUTE, damage_flag = 0)
switch(damage_type)
if(BRUTE)
if(damage_amount)
playsound(loc, 'sound/effects/attackblob.ogg', 100, 1)
else
playsound(src, 'sound/weapons/tap.ogg', 50, 1)
if(BURN)
if(damage_amount)
playsound(loc, 'sound/items/Welder.ogg', 100, 1)
/*
* Generic alien stuff, not related to the purple lizards but still alien-like
*/
/obj/structure/alien/gelpod
name = "gelatinous mound"
desc = "A mound of jelly-like substance encasing something inside."
icon = 'icons/obj/fluff.dmi'
icon_state = "gelmound"
/obj/structure/alien/gelpod/deconstruct(disassembled = TRUE)
if(!(flags & NODECONSTRUCT))
new/obj/effect/mob_spawn/human/corpse/damaged(get_turf(src))
qdel(src)
/*
* Resin
*/
/obj/structure/alien/resin
name = "resin"
desc = "Looks like some kind of thick resin."
icon = 'icons/obj/smooth_structures/alien/resin_wall.dmi'
icon_state = "resin"
density = 1
opacity = 1
anchored = 1
canSmoothWith = list(/obj/structure/alien/resin)
obj_integrity = 200
max_integrity = 200
smooth = SMOOTH_TRUE
var/resintype = null
/obj/structure/alien/resin/New(location)
..()
air_update_turf(1)
return
/obj/structure/alien/resin/Move()
var/turf/T = loc
..()
move_update_air(T)
/obj/structure/alien/resin/CanAtmosPass()
return !density
/obj/structure/alien/resin/wall
name = "resin wall"
desc = "Thick resin solidified into a wall."
icon = 'icons/obj/smooth_structures/alien/resin_wall.dmi'
icon_state = "wall0" //same as resin, but consistency ho!
resintype = "wall"
canSmoothWith = list(/obj/structure/alien/resin/wall, /obj/structure/alien/resin/membrane)
/obj/structure/alien/resin/wall/BlockSuperconductivity()
return 1
/obj/structure/alien/resin/membrane
name = "resin membrane"
desc = "Resin just thin enough to let light pass through."
icon = 'icons/obj/smooth_structures/alien/resin_membrane.dmi'
icon_state = "membrane0"
opacity = 0
obj_integrity = 160
max_integrity = 160
resintype = "membrane"
canSmoothWith = list(/obj/structure/alien/resin/wall, /obj/structure/alien/resin/membrane)
/obj/structure/alien/resin/attack_paw(mob/user)
return attack_hand(user)
/obj/structure/alien/resin/attack_alien(mob/living/user)
user.changeNext_move(CLICK_CD_MELEE)
user.do_attack_animation(src)
user.visible_message("<span class='danger'>[user] claws at the resin!</span>")
take_damage(50)
/obj/structure/alien/resin/CanPass(atom/movable/mover, turf/target, height=0)
return !density
/*
* Weeds
*/
#define NODERANGE 3
/obj/structure/alien/weeds
gender = PLURAL
name = "resin floor"
desc = "A thick resin surface covers the floor."
anchored = 1
density = 0
layer = TURF_LAYER
icon_state = "weeds"
obj_integrity = 15
max_integrity = 15
var/obj/structure/alien/weeds/node/linked_node = null
canSmoothWith = list(/obj/structure/alien/weeds, /turf/closed/wall)
smooth = SMOOTH_MORE
/obj/structure/alien/weeds/New(pos, node)
pixel_x = -4
pixel_y = -4 //so the sprites line up right in the map editor
..()
if(!luminosity) //weed nodes have luminosity, but normal weeds don't!
switch(rand(1,3))
if(1)
icon = 'icons/obj/smooth_structures/alien/weeds1.dmi'
if(2)
icon = 'icons/obj/smooth_structures/alien/weeds2.dmi'
if(3)
icon = 'icons/obj/smooth_structures/alien/weeds3.dmi'
linked_node = node
if(isspaceturf(loc))
qdel(src)
return
addtimer(src, "Life", rand(150, 200))
/obj/structure/alien/weeds/Destroy()
linked_node = null
return ..()
/obj/structure/alien/weeds/proc/Life()
set background = BACKGROUND_ENABLED
var/turf/U = get_turf(src)
if(isspaceturf(U))
qdel(src)
return
if(!linked_node || get_dist(linked_node, src) > linked_node.node_range)
return
for(var/turf/T in U.GetAtmosAdjacentTurfs())
if (locate(/obj/structure/alien/weeds) in T || isspaceturf(T))
continue
new /obj/structure/alien/weeds(T, linked_node)
/obj/structure/alien/weeds/ex_act(severity, target)
qdel(src)
/obj/structure/alien/weeds/temperature_expose(datum/gas_mixture/air, exposed_temperature, exposed_volume)
if(exposed_temperature > 300)
take_damage(5, BURN, 0, 0)
//Weed nodes
/obj/structure/alien/weeds/node
name = "glowing resin"
desc = "Blue bioluminescence shines from beneath the surface."
icon_state = "weednode"
luminosity = 1
var/node_range = NODERANGE
/obj/structure/alien/weeds/node/New()
icon = 'icons/obj/smooth_structures/alien/weednode.dmi'
..(loc, src)
#undef NODERANGE
/*
* Egg
*/
//for the status var
#define BURST 0
#define BURSTING 1
#define GROWING 2
#define GROWN 3
#define MIN_GROWTH_TIME 900 //time it takes to grow a hugger
#define MAX_GROWTH_TIME 1500
/obj/structure/alien/egg
name = "egg"
desc = "A large mottled egg."
icon_state = "egg_growing"
density = 0
anchored = 1
obj_integrity = 100
max_integrity = 100
var/status = GROWING //can be GROWING, GROWN or BURST; all mutually exclusive
layer = MOB_LAYER
/obj/structure/alien/egg/New()
new /obj/item/clothing/mask/facehugger(src)
..()
addtimer(src, "Grow", rand(MIN_GROWTH_TIME, MAX_GROWTH_TIME))
/obj/structure/alien/egg/Destroy()
remove_from_proximity_list(src, 1)
..()
/obj/structure/alien/egg/attack_paw(mob/living/user)
return attack_hand(user)
/obj/structure/alien/egg/attack_hand(mob/living/user)
if(user.getorgan(/obj/item/organ/alien/plasmavessel))
switch(status)
if(BURST)
user << "<span class='notice'>You clear the hatched egg.</span>"
playsound(loc, 'sound/effects/attackblob.ogg', 100, 1)
qdel(src)
return
if(GROWING)
user << "<span class='notice'>The child is not developed yet.</span>"
return
if(GROWN)
user << "<span class='notice'>You retrieve the child.</span>"
Burst(0)
return
else
user << "<span class='notice'>It feels slimy.</span>"
user.changeNext_move(CLICK_CD_MELEE)
/obj/structure/alien/egg/proc/GetFacehugger()
return locate(/obj/item/clothing/mask/facehugger) in contents
/obj/structure/alien/egg/proc/Grow()
icon_state = "egg"
status = GROWN
add_to_proximity_list(src, 1)
/obj/structure/alien/egg/proc/Burst(kill = 1) //drops and kills the hugger if any is remaining
if(status == GROWN || status == GROWING)
remove_from_proximity_list(src, 1)
icon_state = "egg_hatched"
flick("egg_opening", src)
status = BURSTING
spawn(15)
status = BURST
var/obj/item/clothing/mask/facehugger/child = GetFacehugger()
if(child)
child.loc = get_turf(src)
if(kill && istype(child))
child.Die()
else
for(var/mob/M in range(1,src))
if(CanHug(M))
child.Attach(M)
break
/obj/structure/alien/egg/Move()
remove_from_proximity_list(src, 1)
..()
/obj/structure/alien/egg/deconstruct()
if(!(flags & NODECONSTRUCT))
if(status != BURST && status != BURSTING)
Burst()
else if(status == BURST)
qdel(src) //Remove the egg after it has been hit after bursting.
else
qdel(src)
/obj/structure/alien/egg/temperature_expose(datum/gas_mixture/air, exposed_temperature, exposed_volume)
if(exposed_temperature > 500)
take_damage(5, BURN, 0, 0)
/obj/structure/alien/egg/HasProximity(atom/movable/AM)
if(status == GROWN)
if(!CanHug(AM))
return
var/mob/living/carbon/C = AM
if(C.stat == CONSCIOUS && C.getorgan(/obj/item/organ/body_egg/alien_embryo))
return
Burst(0)
#undef BURST
#undef BURSTING
#undef GROWING
#undef GROWN
#undef MIN_GROWTH_TIME
#undef MAX_GROWTH_TIME
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