mirror of
https://github.com/VOREStation/VOREStation.git
synced 2026-05-18 20:59:56 +01:00
Cameron Lennox
74 lines
2.5 KiB
Plaintext
74 lines
2.5 KiB
Plaintext
/datum/component/topturfcrossed
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var/atom/movable/our_owner
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var/turf/our_old_turf = null
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/datum/component/topturfcrossed/Initialize()
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if(!ismovable(parent))
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return COMPONENT_INCOMPATIBLE
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our_owner = parent
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/datum/component/topturfcrossed/Destroy(force)
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. = ..()
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our_owner = null
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our_old_turf = null
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/datum/component/topturfcrossed/RegisterWithParent()
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our_owner.AddComponent(/datum/component/recursive_move) // Required if we want to be useful at all
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RegisterSignal(our_owner, COMSIG_MOVABLE_ATTEMPTED_MOVE, PROC_REF(handle_location_change))
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update_turf_signals(get_turf(our_owner))
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/datum/component/topturfcrossed/UnregisterFromParent()
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UnregisterSignal(our_owner, COMSIG_MOVABLE_ATTEMPTED_MOVE)
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update_turf_signals(null)
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/datum/component/topturfcrossed/proc/handle_location_change(datum/source, atom/old_loc, atom/new_loc)
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SIGNAL_HANDLER
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if(!our_owner)
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return
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update_turf_signals(new_loc)
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/// Updates the topmost turf we are registered to when we are moved.
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/datum/component/topturfcrossed/proc/update_turf_signals(atom/new_loc)
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// Our turf is the exact same, don't change anything!
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if(new_loc && our_old_turf)
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var/turf/check_valid = isturf(new_loc) ? new_loc : get_turf(new_loc)
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if(check_valid == our_old_turf)
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return
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// Always remove the signal from our old turf when registering the new one
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if(our_old_turf)
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UnregisterSignal(our_old_turf, COMSIG_OBSERVER_TURF_ENTERED)
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our_old_turf = null
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// Only register the turf signal if we are inside something, otherwise we'd get DOUBLECROSSED
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if(new_loc && !isturf(our_owner.loc))
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var/turf/find_new = isturf(new_loc) ? new_loc : get_turf(new_loc)
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if(find_new)
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RegisterSignal(find_new, COMSIG_OBSERVER_TURF_ENTERED, PROC_REF(handle_turf_entered))
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our_old_turf = find_new
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/// Forwards the Cross() call from the turf to the object registered
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/datum/component/topturfcrossed/proc/handle_turf_entered(datum/source, datum/weakref/WF, oldloc)
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SIGNAL_HANDLER
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var/atom/movable/crosser = WF?.resolve()
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if(QDELETED(crosser) || QDELETED(our_owner))
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return
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if(isturf(our_owner.loc))
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return
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if(crosser == our_owner)
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return
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our_owner.Crossed(crosser)
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//the bikehorn of testing
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/obj/item/bikehorn/topturf_testing
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name = "bikehorn of testing"
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desc = "honk if you're working correctly"
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/obj/item/bikehorn/topturf_testing/Initialize(mapload)
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. = ..()
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AddComponent(/datum/component/topturfcrossed)
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/obj/item/bikehorn/topturf_testing/Crossed(atom/movable/AM)
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. = ..()
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to_chat(world, "[src] crossed by [AM], was inside [loc]")
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