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Bubberstation/code/datums/elements/movement_turf_changer.dm
SkyratBot 1a6ebeebc1 [MIRROR] Fix movement turf changer element to check openspace [MDB IGNORE] (#12631)
* Fix movement turf changer element to check openspace (#65757)

Fixes #65472 (The movement_turf_changer element allows creatures to step onto open space and fill them in )

This adds an openspace check for the movement_turf_changer element so that whatever mob is using it will fall through openspace properly.

I don't know what a moonicorn is but it sounds cool.

* Fix movement turf changer element to check openspace

Co-authored-by: Tim <timothymtorres@gmail.com>
2022-04-08 22:43:39 -07:00

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/**
* movement_turf_changer element; which makes the movement of a movable atom change the turf it moved to
*
* Used for moonicorns!
*/
/datum/element/movement_turf_changer
element_flags = ELEMENT_BESPOKE|ELEMENT_DETACH
id_arg_index = 2
///Path of the turf added on top
var/turf_type
/datum/element/movement_turf_changer/Attach(datum/target, turf_type)
. = ..()
if(!ismovable(target))
return ELEMENT_INCOMPATIBLE
src.turf_type = turf_type
RegisterSignal(target, COMSIG_MOVABLE_MOVED, .proc/on_moved)
/datum/element/movement_turf_changer/Detach(datum/target)
UnregisterSignal(target, COMSIG_MOVABLE_MOVED)
. = ..()
/datum/element/movement_turf_changer/proc/on_moved(atom/movable/target, atom/origin, direction, forced)
SIGNAL_HANDLER
var/turf/destination = target.loc
if(!isturf(destination) || istype(destination, turf_type) || isopenspaceturf(destination))
return
destination.PlaceOnTop(turf_type)