Files
Bubberstation/code/datums/elements/chemical_transfer.dm
LemonInTheDark ae5a4f955d Pulls apart the vestiges of components still hanging onto signals (#75914)
## 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no longer the case has lead to outdated documentation, names, and a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
/🆑
2023-06-09 06:14:31 +00:00

67 lines
2.8 KiB
Plaintext

//the default chemical transfer messages if they aren't set
#define DEFAULT_ATTACKER_MESSAGE span_notice("You transfer your chemicals to %VICTIM.")
#define DEFAULT_VICTIM_MESSAGE span_userdanger("Chemicals have been transferred into you from %ATTACKER!")
/**
* ## chemical transfer element!
*
* Bespoke element that, on a certain chance to proc, transfers all chemicals from the person attacking to the victim being attacked
* with whatever item has this element.
*
* attacker_message uses %VICTIM as whomever is getting attacked.
* victim_message uses %ATTACKER for the same.
*/
/datum/element/chemical_transfer
element_flags = ELEMENT_BESPOKE
argument_hash_start_idx = 2
///chance for the chemical transfer to proc.
var/transfer_prob
///message attacker gets when the chemical transfer procs
var/attacker_message
///message victim gets when the chemical transfer procs
var/victim_message
/datum/element/chemical_transfer/Attach(datum/target, attacker_message = DEFAULT_ATTACKER_MESSAGE, victim_message = DEFAULT_VICTIM_MESSAGE, transfer_prob = 100)
. = ..()
if(!isitem(target))
return ELEMENT_INCOMPATIBLE
src.transfer_prob = transfer_prob
src.attacker_message = attacker_message
src.victim_message = victim_message
RegisterSignal(target, COMSIG_ITEM_ATTACK, PROC_REF(on_attack))
RegisterSignal(target, COMSIG_ATOM_EXAMINE, PROC_REF(on_examine))
/datum/element/chemical_transfer/Detach(datum/target)
. = ..()
UnregisterSignal(target, list(COMSIG_ITEM_ATTACK, COMSIG_ATOM_EXAMINE))
///signal called on parent being examined
/datum/element/chemical_transfer/proc/on_examine(datum/target, mob/user, list/examine_list)
SIGNAL_HANDLER
var/probability_description
switch(transfer_prob)
if(1 to 25)
probability_description = "rarely"
if(26 to 66)
probability_description = "sometimes"
if(67 to 99)
probability_description = "often"
if(100)
probability_description = "always"
examine_list += span_notice("Attacking with [target] will [probability_description] transfer reagents inside of you to your victim.")
///signal called on parent being used to attack a victim
/datum/element/chemical_transfer/proc/on_attack(datum/target, mob/living/transfer_victim, mob/living/transfer_attacker)
SIGNAL_HANDLER
if(!istype(transfer_attacker) || !prob(transfer_prob))
return
var/built_attacker_message = replacetext(attacker_message, "%VICTIM", transfer_victim)
var/built_victim_message = replacetext(attacker_message, "%ATTACKER", transfer_attacker)
transfer_attacker.reagents?.trans_to(transfer_victim, transfer_attacker.reagents.total_volume, multiplier = 1, preserve_data = 1, no_react = 0, transfered_by = transfer_attacker)
to_chat(transfer_attacker, built_attacker_message)
to_chat(transfer_victim, built_victim_message)
#undef DEFAULT_ATTACKER_MESSAGE
#undef DEFAULT_VICTIM_MESSAGE