Files
Bubberstation/code/game/objects/structures/holosign.dm
silicons 160175ee8b pass_flags handling refactor + rewrites a part of projectiles for the n-th time (#54924)
Yeah uhh this'll probably need testmerging even after it's done because yeah it's a bit big.
If y'all want me to atomize this into two PRs (pass flags vs projectiles) tell me please. Pass flags would have to go in first though, in that case, as new projectile hit handling will rely on pass_flags_self.
Pass flags:

Pass flags handling now uses an atom variable named pass_flags_self.
If any of these match a pass_flag on a thing trying to pass through, it's allowed through by default.
This makes overriding CanAllowThrough unnecessary for the majority of things. I've however not removed overrides for very.. weird cases, like plastic flaps which uses a prob(60) for letting PASSGLASS things through for god knows why.
LETPASSTHROW is now on pass_flags_self
Projectiles:

Not finalized yet, need to do something to make the system I have in mind have less unneeded overhead + snowflake

Basically, for piercing/phasing/otherwise projectiles that go through things instead of hitting the first dense object, I have them use pass_flags flags for two new variables, projectile_phasing and projectile_piercing. Anything with pass_flags_self in the former gets phased through entirely. Anything in the latter gets hit, and the projectile then goes through. on_hit will also register a piercing hit vs a normal hit (so things like missiles can only explode on a normal hit or otherwise, instead of exploding multiple times. Not needed as missiles qdel(src) right now but it's nice to have for the future).

I still need to decide what to do for hit handling proper, as Bump() is still preferred due to it not being as high-overhead as something like scanning on Moved(). I'm thinking I'll make Moved() only scan for cases where it needs to hit a non-dense object - a prone human the user clicked on, anything special like that. Don't know the exact specifics yet, which is why this is still WIP.

Projectiles now use check_pierce() to determine if it goes through something and hits it, doesn't hit it, or doesn't go through something at all (should delete self after hitting). Will likely make an on_pierce proc to be called post-piercing something so you can have !fun! things like projectiles that go down in damage after piercing something. This will likely deprecate the process_hit proc, or at least make it less awful.

scan_for_hit() is now used to attempt to hit something and will return whether the projectile got deleted or not. It will delete the projectile if the projectile does hit something and fails to pierce through it.

scan_moved_turf() (WIP) will be used for handling moving onto a turf.

permutated has been renamed to impacted. Ricocheting projectiles get it reset, allowing projectiles to pierce and potentially hit something again if it goes back around.

A new unit test has been added checking for projectiles with movement type of PHASING. This is because PHASING completely causes projectiles to break down as projectiles mainly sense collisions through Bump. The small boost in performance from using PHASING instead of having all pass flags active/overriding check_pierce is in my opinion not worth the extra snowflake in scan_moved_turf() I'd have to do to deal with having to check for hits manually rather than Bump()ing things.
Movement types

UNSTOPPABLE renamed to PHASING to better describe what it is, going through and crossing everything but not actually bumping.
Why It's Good For The Game

Better pass flags handling allows for less proc overrides, bitflag checks are far less expensive in general.

Fixes penetrating projectiles like sniper penetrators

This system also allows for better handling of piercing projectiles (see above) without too much snowflake code, as you'd only need to modify on_pierce() if you needed to do special handling like dampening damage per target pierced, and otherwise you could just use the standardized system and just set pass flags to what's needed. If you really need a projectile that pierces almost everything, override check_pierce(), which is still going to be easier than what was done before (even with snowflake handling of UNSTOPPABLE flag process_hit() was extremely ugly, now we don't rely on movement types at all.)
2020-12-10 09:29:27 +13:00

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//holographic signs and barriers
/obj/structure/holosign
name = "holo sign"
icon = 'icons/effects/effects.dmi'
anchored = TRUE
max_integrity = 1
armor = list(MELEE = 0, BULLET = 50, LASER = 50, ENERGY = 50, BOMB = 0, BIO = 0, RAD = 0, FIRE = 20, ACID = 20)
var/obj/item/holosign_creator/projector
/obj/structure/holosign/Initialize(loc, source_projector)
. = ..()
alpha = 0
SSvis_overlays.add_vis_overlay(src, icon, icon_state, ABOVE_MOB_LAYER, plane, dir, add_appearance_flags = RESET_ALPHA) //you see mobs under it, but you hit them like they are above it
if(source_projector)
projector = source_projector
LAZYADD(projector.signs, src)
/obj/structure/holosign/Destroy()
if(projector)
LAZYREMOVE(projector.signs, src)
projector = null
return ..()
/obj/structure/holosign/attack_hand(mob/living/user)
. = ..()
if(.)
return
user.do_attack_animation(src, ATTACK_EFFECT_PUNCH)
user.changeNext_move(CLICK_CD_MELEE)
take_damage(5 , BRUTE, MELEE, 1)
/obj/structure/holosign/play_attack_sound(damage_amount, damage_type = BRUTE, damage_flag = 0)
switch(damage_type)
if(BRUTE)
playsound(loc, 'sound/weapons/egloves.ogg', 80, TRUE)
if(BURN)
playsound(loc, 'sound/weapons/egloves.ogg', 80, TRUE)
/obj/structure/holosign/wetsign
name = "wet floor sign"
desc = "The words flicker as if they mean nothing."
icon = 'icons/effects/effects.dmi'
icon_state = "holosign"
/obj/structure/holosign/barrier
name = "holobarrier"
desc = "A short holographic barrier which can only be passed by walking."
icon_state = "holosign_sec"
pass_flags_self = PASSTABLE | PASSGRILLE | PASSGLASS | LETPASSTHROW
density = TRUE
max_integrity = 20
var/allow_walk = TRUE //can we pass through it on walk intent
/obj/structure/holosign/barrier/CanAllowThrough(atom/movable/mover, turf/target)
. = ..()
if(.)
return
if(iscarbon(mover))
var/mob/living/carbon/C = mover
if(C.stat) // Lets not prevent dragging unconscious/dead people.
return TRUE
if(allow_walk && C.m_intent == MOVE_INTENT_WALK)
return TRUE
/obj/structure/holosign/barrier/wetsign
name = "wet floor holobarrier"
desc = "When it says walk it means walk."
icon = 'icons/effects/effects.dmi'
icon_state = "holosign"
/obj/structure/holosign/barrier/wetsign/CanAllowThrough(atom/movable/mover, turf/target)
. = ..()
if(iscarbon(mover))
var/mob/living/carbon/C = mover
if(C.stat) // Lets not prevent dragging unconscious/dead people.
return TRUE
if(allow_walk && C.m_intent != MOVE_INTENT_WALK)
return FALSE
/obj/structure/holosign/barrier/engineering
icon_state = "holosign_engi"
flags_1 = RAD_PROTECT_CONTENTS_1 | RAD_NO_CONTAMINATE_1
rad_insulation = RAD_LIGHT_INSULATION
/obj/structure/holosign/barrier/atmos
name = "holofirelock"
desc = "A holographic barrier resembling a firelock. Though it does not prevent solid objects from passing through, gas is kept out."
icon_state = "holo_firelock"
density = FALSE
anchored = TRUE
CanAtmosPass = ATMOS_PASS_NO
alpha = 150
flags_1 = RAD_PROTECT_CONTENTS_1 | RAD_NO_CONTAMINATE_1
rad_insulation = RAD_LIGHT_INSULATION
/obj/structure/holosign/barrier/atmos/Initialize()
. = ..()
air_update_turf(TRUE)
/obj/structure/holosign/barrier/cyborg
name = "Energy Field"
desc = "A fragile energy field that blocks movement. Excels at blocking lethal projectiles."
density = TRUE
max_integrity = 10
allow_walk = FALSE
/obj/structure/holosign/barrier/cyborg/bullet_act(obj/projectile/P)
take_damage((P.damage / 5) , BRUTE, MELEE, 1) //Doesn't really matter what damage flag it is.
if(istype(P, /obj/projectile/energy/electrode))
take_damage(10, BRUTE, MELEE, 1) //Tasers aren't harmful.
if(istype(P, /obj/projectile/beam/disabler))
take_damage(5, BRUTE, MELEE, 1) //Disablers aren't harmful.
return BULLET_ACT_HIT
/obj/structure/holosign/barrier/medical
name = "\improper PENLITE holobarrier"
desc = "A holobarrier that uses biometrics to detect human viruses. Denies passing to personnel with easily-detected, malicious viruses. Good for quarantines."
icon_state = "holo_medical"
alpha = 125 //lazy :)
var/force_allaccess = FALSE
var/buzzcd = 0
/obj/structure/holosign/barrier/medical/examine(mob/user)
. = ..()
. += "<span class='notice'>The biometric scanners are <b>[force_allaccess ? "off" : "on"]</b>.</span>"
/obj/structure/holosign/barrier/medical/CanAllowThrough(atom/movable/mover, turf/target)
. = ..()
if(force_allaccess)
return TRUE
if(istype(mover, /obj/vehicle/ridden))
for(var/M in mover.buckled_mobs)
if(ishuman(M))
if(!CheckHuman(M))
return FALSE
if(ishuman(mover))
return CheckHuman(mover)
return TRUE
/obj/structure/holosign/barrier/medical/Bumped(atom/movable/AM)
. = ..()
icon_state = "holo_medical"
if(ishuman(AM) && !CheckHuman(AM))
if(buzzcd < world.time)
playsound(get_turf(src),'sound/machines/buzz-sigh.ogg',65,TRUE,4)
buzzcd = (world.time + 60)
icon_state = "holo_medical-deny"
/obj/structure/holosign/barrier/medical/proc/CheckHuman(mob/living/carbon/human/sickboi)
var/threat = sickboi.check_virus()
if(get_disease_severity_value(threat) > get_disease_severity_value(DISEASE_SEVERITY_MINOR))
return FALSE
return TRUE
/obj/structure/holosign/barrier/medical/attack_hand(mob/living/user)
if(CanPass(user) && user.a_intent == INTENT_HELP)
force_allaccess = !force_allaccess
to_chat(user, "<span class='warning'>You [force_allaccess ? "deactivate" : "activate"] the biometric scanners.</span>") //warning spans because you can make the station sick!
else
return ..()
/obj/structure/holosign/barrier/cyborg/hacked
name = "Charged Energy Field"
desc = "A powerful energy field that blocks movement. Energy arcs off it."
max_integrity = 20
var/shockcd = 0
/obj/structure/holosign/barrier/cyborg/hacked/bullet_act(obj/projectile/P)
take_damage(P.damage, BRUTE, MELEE, 1) //Yeah no this doesn't get projectile resistance.
return BULLET_ACT_HIT
/obj/structure/holosign/barrier/cyborg/hacked/proc/cooldown()
shockcd = FALSE
/obj/structure/holosign/barrier/cyborg/hacked/attack_hand(mob/living/user)
. = ..()
if(.)
return
if(!shockcd)
if(ismob(user))
var/mob/living/M = user
M.electrocute_act(15,"Energy Barrier")
shockcd = TRUE
addtimer(CALLBACK(src, .proc/cooldown), 5)
/obj/structure/holosign/barrier/cyborg/hacked/Bumped(atom/movable/AM)
if(shockcd)
return
if(!ismob(AM))
return
var/mob/living/M = AM
M.electrocute_act(15,"Energy Barrier")
shockcd = TRUE
addtimer(CALLBACK(src, .proc/cooldown), 5)