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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| /// Component that allows a user to control any object as if it were a mob. Does give the user incorporeal movement. | ||
| /datum/component/object_possession | ||
| dupe_mode = COMPONENT_DUPE_UNIQUE_PASSARGS | ||
| /// Stores a reference to the obj that we are currently possessing. | ||
| var/obj/possessed | ||
| /// Ref to the screen object that is currently being displayed. | ||
| var/datum/weakref/screen_alert_ref | ||
| /** | ||
| * back up of the real name during user possession | ||
| * | ||
| * When a user possesses an object it's real name is set to the user name and this | ||
| * stores whatever the real name was previously. When possession ends, the real name | ||
| * is reset to this value | ||
| */ | ||
| var/stashed_name | ||
|
|
||
| /datum/component/object_possession/Initialize(obj/target) | ||
| . = ..() | ||
| if(!isobj(target) || !ismob(parent)) | ||
| return COMPONENT_INCOMPATIBLE | ||
|
|
||
| if(!bind_to_new_object(target)) | ||
| return COMPONENT_INCOMPATIBLE | ||
|
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||
| var/mob/user = parent | ||
| screen_alert_ref = WEAKREF(user.throw_alert(ALERT_UNPOSSESS_OBJECT, /atom/movable/screen/alert/unpossess_object)) | ||
|
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||
| /datum/component/object_possession/RegisterWithParent() | ||
| RegisterSignals(parent, list(COMSIG_MOB_CLIENT_PRE_LIVING_MOVE, COMSIG_MOB_CLIENT_PRE_NON_LIVING_MOVE), PROC_REF(on_move)) | ||
| RegisterSignal(parent, COMSIG_MOB_GHOSTIZE, PROC_REF(end_possession)) | ||
|
|
||
| /datum/component/object_possession/UnregisterFromParent() | ||
| UnregisterSignal(parent, list( | ||
| COMSIG_MOB_CLIENT_PRE_LIVING_MOVE, | ||
| COMSIG_MOB_CLIENT_PRE_NON_LIVING_MOVE, | ||
| COMSIG_MOB_GHOSTIZE, | ||
| )) | ||
|
|
||
| /datum/component/object_possession/Destroy() | ||
| cleanup_object_binding() | ||
|
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||
| var/mob/user = parent | ||
| var/atom/movable/screen/alert/alert_to_clear = screen_alert_ref?.resolve() | ||
|
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||
| if(!QDELETED(alert_to_clear)) | ||
| user.clear_alert(ALERT_UNPOSSESS_OBJECT) | ||
|
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| return ..() | ||
|
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||
| /datum/component/object_possession/InheritComponent(datum/component/object_possession/old_component, i_am_original, obj/target) | ||
| cleanup_object_binding() | ||
|
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||
| if(!bind_to_new_object(target)) | ||
| qdel(src) | ||
|
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| stashed_name = old_component?.stashed_name | ||
|
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||
| /// Binds the mob to the object and sets up the naming and everything. | ||
| /// Returns FALSE if we don't bind, TRUE if we succeed. | ||
| /datum/component/object_possession/proc/bind_to_new_object(obj/target) | ||
| if(issingularity(target) && CONFIG_GET(flag/forbid_singulo_possession)) | ||
| to_chat(parent, "[target] сопротивляется вашему контролю.", confidential = TRUE) | ||
| return FALSE | ||
|
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||
| var/mob/user = parent | ||
|
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||
| stashed_name = user.real_name | ||
| possessed = target | ||
|
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||
| user.forceMove(target) | ||
| user.real_name = target.name | ||
| user.name = target.name | ||
| user.reset_perspective(target) | ||
|
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||
| RegisterSignal(target, COMSIG_QDELETING, PROC_REF(end_possession)) | ||
| SEND_SIGNAL(target, COMSIG_OBJ_POSSESSED, parent) | ||
|
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||
| return TRUE | ||
|
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||
| /// Cleans up everything pertinent to the current possessed object. | ||
| /datum/component/object_possession/proc/cleanup_object_binding() | ||
| if(QDELETED(possessed)) | ||
| return | ||
|
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||
| var/mob/poltergeist = parent | ||
|
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||
| UnregisterSignal(possessed, COMSIG_QDELETING) | ||
|
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||
| if(!isnull(stashed_name)) | ||
| poltergeist.real_name = stashed_name | ||
| poltergeist.name = stashed_name | ||
|
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||
| if(ishuman(poltergeist)) | ||
| var/mob/living/carbon/human/human_user = poltergeist | ||
| human_user.name = human_user.get_visible_name() | ||
|
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||
| poltergeist.forceMove(get_turf(possessed)) | ||
| poltergeist.reset_perspective() | ||
|
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| possessed = null | ||
|
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||
| /** | ||
| * force move the parent object instead of the source mob. | ||
| * | ||
| * Has no sanity other than checking the possed obj's density. this means it effectively has incorporeal movement, making it only good for badminnery. | ||
| * | ||
| * We always want to return `COMPONENT_MOVABLE_BLOCK_PRE_MOVE` here regardless | ||
| */ | ||
| /datum/component/object_possession/proc/on_move(datum/source, new_loc, direct) | ||
| SIGNAL_HANDLER | ||
|
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||
| . = COMPONENT_MOVABLE_BLOCK_PRE_MOVE // both signals that invoke this are explicitly tied to listen for this define as the return value | ||
|
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| if(!possessed.density) | ||
| possessed.forceMove(get_step(possessed, direct)) | ||
|
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| else | ||
| step(possessed, direct) | ||
|
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| possessed.setDir(direct) | ||
| SEND_SIGNAL(possessed, COMSIG_POSSESSED_MOVEMENT, source, new_loc, direct) | ||
|
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| return | ||
|
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||
| /// Just the overall "get me outta here" proc. | ||
| /datum/component/object_possession/proc/end_possession(datum/source) | ||
| SIGNAL_HANDLER | ||
|
|
||
| SEND_SIGNAL(possessed, COMSIG_OBJ_RELEASED, parent) | ||
| qdel(src) |
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