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76 lines (62 loc) · 2.31 KB
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/datum/component/decal
dupe_mode = COMPONENT_DUPE_ALLOWED
can_transfer = TRUE
var/cleanable
var/description
var/mutable_appearance/pic
var/first_dir // This only stores the dir arg from init
/datum/component/decal/Initialize(_icon, _icon_state, _dir, _cleanable=FALSE, _color, _layer=TURF_LAYER, _description, _alpha=255)
if(!isatom(parent) || !generate_appearance(_icon, _icon_state, _dir, _layer, _color, _alpha))
return COMPONENT_INCOMPATIBLE
first_dir = _dir
description = _description
cleanable = _cleanable
apply()
/datum/component/decal/RegisterWithParent()
if(first_dir)
RegisterSignal(parent, COMSIG_ATOM_DIR_CHANGE, .proc/rotate_react)
if(cleanable != FALSE)
RegisterSignal(parent, COMSIG_COMPONENT_CLEAN_ACT, .proc/clean_react)
if(description)
RegisterSignal(parent, COMSIG_PARENT_EXAMINE, .proc/examine)
/datum/component/decal/UnregisterFromParent()
UnregisterSignal(parent, list(COMSIG_ATOM_DIR_CHANGE, COMSIG_COMPONENT_CLEAN_ACT, COMSIG_PARENT_EXAMINE))
/datum/component/decal/Destroy()
remove()
return ..()
/datum/component/decal/PreTransfer()
remove()
/datum/component/decal/PostTransfer()
remove()
apply()
/datum/component/decal/proc/generate_appearance(_icon, _icon_state, _dir, _layer, _color, _alpha)
if(!_icon || !_icon_state)
return FALSE
// It has to be made from an image or dir breaks because of a byond bug
var/temp_image = image(_icon, null, _icon_state, _layer, _dir)
pic = new(temp_image)
pic.color = _color
pic.alpha = _alpha
return TRUE
/datum/component/decal/proc/apply(atom/thing)
var/atom/master = thing || parent
master.add_overlay(pic, TRUE)
if(isitem(master))
addtimer(CALLBACK(master, /obj/item/.proc/update_slot_icon), 0, TIMER_UNIQUE)
/datum/component/decal/proc/remove(atom/thing)
var/atom/master = thing || parent
master.cut_overlay(pic, TRUE)
if(isitem(master))
addtimer(CALLBACK(master, /obj/item/.proc/update_slot_icon), 0, TIMER_UNIQUE)
/datum/component/decal/proc/rotate_react(datum/source, old_dir, new_dir)
if(old_dir == new_dir)
return
remove()
pic.dir = turn(pic.dir, dir2angle(old_dir) - dir2angle(new_dir))
apply()
/datum/component/decal/proc/clean_react(datum/source, clean_types)
if(clean_types & cleanable)
qdel(src)
return TRUE
/datum/component/decal/proc/examine(datum/source, mob/user, list/examine_list)
examine_list += description