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ae5a4f955d
## About The Pull Request Signals were initially only usable with component listeners, which while no longer the case has lead to outdated documentation, names, and a similar location in code. This pr pulls the two apart. Partially because mso thinks we should, but also because they really aren't directly linked anymore, and having them in this midstate just confuses people. [Renames comp_lookup to listen_lookup, since that's what it does](102b79694f) [Moves signal procs over to their own file](33d07d01fd) [Renames the PREQDELETING and QDELETING comsigs to drop the parent bit since they can hook to more then just comps now](335ea4ad08) [Does something similar to the attackby comsigs (PARENT -> ATOM)](210e57051d) [And finally passes over the examine signals](65917658fb) ## Why It's Good For The Game Code makes more sense, things are better teased apart, s just good imo ## Changelog 🆑 refactor: Pulled apart the last vestiges of names/docs directly linking signals to components /🆑
74 lines
2.4 KiB
Plaintext
74 lines
2.4 KiB
Plaintext
/** Holder Loving Component
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*
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* This component is assigned to an [/obj/item], and also keeps track of a [holder].
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* The [parent] is 'bound' to [holder]. [parent] will be kept either directly
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* inside [holder], or in the inventory of a [/mob] that is itself holding [holder].
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*
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* If [parent] is placed in a [loc] that is not [holder] or [holder].[loc]
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* (if it's a mob), it is placed back inside [holder].
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*
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* This is intended for items that are a 'part' of another item.
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*
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* It can also delete [parent] when [holder] is deleted.
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*
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*/
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/datum/component/holderloving
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can_transfer = TRUE
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/** Item that parent is bound to.
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* We try to keep parent either directly in holder, or in holder's loc if loc is a mob,
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* and warp parent into holder if they go anywhere else.
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*/
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var/atom/holder
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/// If parent is deleted when the holder gets deleted
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var/del_parent_with_holder = FALSE
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/datum/component/holderloving/Initialize(holder, del_parent_with_holder)
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if(!isitem(parent) || !holder)
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return COMPONENT_INCOMPATIBLE
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src.holder = holder
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if(del_parent_with_holder)
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src.del_parent_with_holder = del_parent_with_holder
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/datum/component/holderloving/RegisterWithParent()
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RegisterSignal(holder, COMSIG_MOVABLE_MOVED, PROC_REF(check_my_loc))
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RegisterSignal(holder, COMSIG_QDELETING, PROC_REF(holder_deleting))
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RegisterSignals(parent, list(
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COMSIG_ITEM_DROPPED,
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COMSIG_ITEM_EQUIPPED,
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COMSIG_ATOM_ENTERED,
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COMSIG_ATOM_EXITED,
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), PROC_REF(check_my_loc))
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/datum/component/holderloving/UnregisterFromParent()
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UnregisterSignal(holder, list(COMSIG_MOVABLE_MOVED, COMSIG_QDELETING))
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UnregisterSignal(parent, list(
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COMSIG_ITEM_DROPPED,
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COMSIG_ITEM_EQUIPPED,
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COMSIG_ATOM_ENTERED,
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COMSIG_ATOM_EXITED,
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))
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/datum/component/holderloving/PostTransfer()
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if(!isitem(parent))
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return COMPONENT_INCOMPATIBLE
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/datum/component/holderloving/InheritComponent(datum/component/holderloving/friend, i_am_original, list/arguments)
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if(i_am_original)
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holder = friend.holder
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/datum/component/holderloving/proc/check_valid_loc(atom/location)
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return (location == holder || ( location == holder.loc && ismob(holder.loc) ))
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/datum/component/holderloving/proc/holder_deleting(datum/source, force)
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SIGNAL_HANDLER
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if(del_parent_with_holder)
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qdel(parent)
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else
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qdel(src)
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/datum/component/holderloving/proc/check_my_loc(datum/source)
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SIGNAL_HANDLER
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var/obj/item/item_parent = parent
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if(!check_valid_loc(item_parent.loc))
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item_parent.forceMove(holder)
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