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Bubberstation/code/game/atom/alternate_appearance.dm
MrMelbert 9b40e13f8b Makes dust animation look less 2006 (#87435) 
## About The Pull Request

This was inspired by an effect I saw on Paradise but I sprited my own


https://github.com/user-attachments/assets/2130053c-a6ea-48e6-8b62-4c08563fd154

(Todo, make the skeleton appearing less jank)

## Why It's Good For The Game

1. Looks less 2006. 
2. The dust sprite will reflect the mob being dusted, since it's
literally just Your Sprite. Your clothes, species, etc.
3. All species and all mob types now animate being dusted - from corgi
to xenos, from borgs to lizards -, and we can even reuse this effect for
items being dusted if we so desire

## Changelog

🆑 Melbert
image: The animation for being dusted now takes into account your
sprite, rather than being a normal nude spaceman
/🆑
2024-11-12 10:31:03 +13:00

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GLOBAL_LIST_EMPTY(active_alternate_appearances)
/atom
var/list/alternate_appearances
/atom/proc/remove_alt_appearance(key)
if(alternate_appearances)
for(var/K in alternate_appearances)
var/datum/atom_hud/alternate_appearance/AA = alternate_appearances[K]
if(AA.appearance_key == key)
AA.remove_atom_from_hud(src)
break
/atom/proc/add_alt_appearance(type, key, ...)
if(!type || !key)
return
if(alternate_appearances && alternate_appearances[key])
return
if(!ispath(type, /datum/atom_hud/alternate_appearance))
CRASH("Invalid type passed in: [type]")
var/list/arguments = args.Copy(2)
return new type(arglist(arguments))
/datum/atom_hud/alternate_appearance
var/appearance_key
var/transfer_overlays = FALSE
/datum/atom_hud/alternate_appearance/New(key)
// We use hud_icons to register our hud, so we need to do this before the parent call
appearance_key = key
hud_icons = list(appearance_key)
..()
GLOB.active_alternate_appearances += src
for(var/mob in GLOB.player_list)
apply_to_new_mob(mob)
/datum/atom_hud/alternate_appearance/Destroy()
GLOB.active_alternate_appearances -= src
return ..()
/// Wrapper for applying this alt hud to the passed mob (if they should see it)
/datum/atom_hud/alternate_appearance/proc/apply_to_new_mob(mob/applying_to)
if(mobShouldSee(applying_to))
if(!hud_users_all_z_levels[applying_to])
show_to(applying_to)
return TRUE
return FALSE
/// Checks if the passed mob should be seeing this hud
/datum/atom_hud/alternate_appearance/proc/mobShouldSee(mob/M)
return FALSE
/datum/atom_hud/alternate_appearance/show_to(mob/new_viewer)
. = ..()
if(!new_viewer)
return
track_mob(new_viewer)
/// Registers some signals to track the mob's state to determine if they should be seeing the hud still
/datum/atom_hud/alternate_appearance/proc/track_mob(mob/new_viewer)
return
/datum/atom_hud/alternate_appearance/hide_from(mob/former_viewer, absolute)
. = ..()
if(!former_viewer || hud_atoms_all_z_levels[former_viewer] >= 1)
return
untrack_mob(former_viewer)
/// Unregisters the signals that were tracking the mob's state
/datum/atom_hud/alternate_appearance/proc/untrack_mob(mob/former_viewer)
return
/datum/atom_hud/alternate_appearance/proc/check_hud(mob/source)
SIGNAL_HANDLER
// Attempt to re-apply the hud entirely
if(!apply_to_new_mob(source))
// If that failed, probably shouldn't be seeing it at all, so nuke it
hide_from(source, absolute = TRUE)
/datum/atom_hud/alternate_appearance/add_atom_to_hud(atom/A, image/I)
. = ..()
if(.)
LAZYINITLIST(A.alternate_appearances)
A.alternate_appearances[appearance_key] = src
/datum/atom_hud/alternate_appearance/remove_atom_from_hud(atom/A)
. = ..()
if(.)
LAZYREMOVE(A.alternate_appearances, appearance_key)
/datum/atom_hud/alternate_appearance/proc/copy_overlays(atom/other, cut_old)
return
//an alternate appearance that attaches a single image to a single atom
/datum/atom_hud/alternate_appearance/basic
var/atom/target
var/image/image
var/add_ghost_version = FALSE
var/datum/atom_hud/alternate_appearance/basic/observers/ghost_appearance
uses_global_hud_category = FALSE
/datum/atom_hud/alternate_appearance/basic/New(key, image/I, options = AA_TARGET_SEE_APPEARANCE)
..()
transfer_overlays = options & AA_MATCH_TARGET_OVERLAYS
image = I
target = I.loc
LAZYADD(target.update_on_z, image)
if(transfer_overlays)
I.copy_overlays(target)
add_atom_to_hud(target)
target.set_hud_image_active(appearance_key, exclusive_hud = src)
if((options & AA_TARGET_SEE_APPEARANCE) && ismob(target))
show_to(target)
if(add_ghost_version)
var/image/ghost_image = image(icon = I.icon , icon_state = I.icon_state, loc = I.loc)
ghost_image.override = FALSE
ghost_image.alpha = 128
ghost_appearance = new /datum/atom_hud/alternate_appearance/basic/observers(key + "_observer", ghost_image, NONE)
/datum/atom_hud/alternate_appearance/basic/Destroy()
. = ..()
LAZYREMOVE(target.update_on_z, image)
QDEL_NULL(image)
target = null
if(ghost_appearance)
QDEL_NULL(ghost_appearance)
/datum/atom_hud/alternate_appearance/basic/track_mob(mob/new_viewer)
RegisterSignals(new_viewer, list(
COMSIG_MOB_ANTAGONIST_REMOVED,
COMSIG_MOB_GHOSTIZED,
COMSIG_MOB_MIND_TRANSFERRED_INTO,
COMSIG_MOB_MIND_TRANSFERRED_OUT_OF,
), PROC_REF(check_hud), override = TRUE)
/datum/atom_hud/alternate_appearance/basic/untrack_mob(mob/former_viewer)
UnregisterSignal(former_viewer, list(
COMSIG_MOB_ANTAGONIST_REMOVED,
COMSIG_MOB_GHOSTIZED,
COMSIG_MOB_MIND_TRANSFERRED_INTO,
COMSIG_MOB_MIND_TRANSFERRED_OUT_OF,
))
/datum/atom_hud/alternate_appearance/basic/add_atom_to_hud(atom/A)
LAZYINITLIST(A.hud_list)
A.hud_list[appearance_key] = image
. = ..()
/datum/atom_hud/alternate_appearance/basic/remove_atom_from_hud(atom/A)
. = ..()
LAZYREMOVE(A.hud_list, appearance_key)
A.set_hud_image_inactive(appearance_key)
if(. && !QDELETED(src))
qdel(src)
/datum/atom_hud/alternate_appearance/basic/copy_overlays(atom/other, cut_old)
image.copy_overlays(other, cut_old)
/datum/atom_hud/alternate_appearance/basic/everyone
add_ghost_version = TRUE
/datum/atom_hud/alternate_appearance/basic/everyone/mobShouldSee(mob/M)
return !isdead(M)
/datum/atom_hud/alternate_appearance/basic/silicons
/datum/atom_hud/alternate_appearance/basic/silicons/mobShouldSee(mob/M)
if(issilicon(M))
return TRUE
return FALSE
/datum/atom_hud/alternate_appearance/basic/observers
add_ghost_version = FALSE //just in case, to prevent infinite loops
/datum/atom_hud/alternate_appearance/basic/observers/mobShouldSee(mob/M)
return isobserver(M)
/datum/atom_hud/alternate_appearance/basic/noncult
/datum/atom_hud/alternate_appearance/basic/noncult/mobShouldSee(mob/M)
return !IS_CULTIST(M)
/datum/atom_hud/alternate_appearance/basic/has_antagonist/cult
antag_datum_type = /datum/antagonist/cult
/datum/atom_hud/alternate_appearance/basic/blessed_aware
/datum/atom_hud/alternate_appearance/basic/blessed_aware/mobShouldSee(mob/M)
if(M.mind?.holy_role)
return TRUE
if (istype(M, /mob/living/basic/construct/wraith))
return TRUE
if(isrevenant(M) || IS_WIZARD(M))
return TRUE
return FALSE
/// Only shows the image to one person
/datum/atom_hud/alternate_appearance/basic/one_person
/// The guy who gets to see the image
var/mob/seer
/datum/atom_hud/alternate_appearance/basic/one_person/mobShouldSee(mob/M)
return M == seer
/datum/atom_hud/alternate_appearance/basic/one_person/New(key, image/I, options = NONE, mob/living/seer)
src.seer = seer
return ..()
/// Shows the image to everyone but one person
/datum/atom_hud/alternate_appearance/basic/one_person/reversed
/datum/atom_hud/alternate_appearance/basic/one_person/reversed/mobShouldSee(mob/M)
return M != seer
/datum/atom_hud/alternate_appearance/basic/food_demands
/datum/atom_hud/alternate_appearance/basic/heretic
/datum/atom_hud/alternate_appearance/basic/heretic/mobShouldSee(mob/M)
if(IS_HERETIC(M))
return TRUE
return FALSE
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