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d838bff525
## About The Pull Request A few places seem to call `hitby` or `throw_impact` without a throwing datum to mimic the effect of colliding with something, which is cringe, but I guess we should support it. So we need to nullcheck for `get_thrower`, else it runtimes and cancels the whole proc. ## Changelog 🆑 Melbert fix: Glass shards from colliding with vendors or glass table hurt you again. /🆑
93 lines
4.1 KiB
Plaintext
93 lines
4.1 KiB
Plaintext
/**
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* This element registers to a shitload of signals which can signify "someone attacked me".
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* If anyone does it sends a single "someone attacked me" signal containing details about who done it.
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* This prevents other components and elements from having to register to the same list of a million signals, should be more maintainable in one place.
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*/
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/datum/element/relay_attackers
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/datum/element/relay_attackers/Attach(datum/target)
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. = ..()
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if (!HAS_TRAIT(target, TRAIT_RELAYING_ATTACKER)) // Little bit gross but we want to just apply this shit from a bunch of places
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// Boy this sure is a lot of ways to tell us that someone tried to attack us
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RegisterSignal(target, COMSIG_ATOM_AFTER_ATTACKEDBY, PROC_REF(after_attackby))
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RegisterSignals(target, list(COMSIG_ATOM_ATTACK_HAND, COMSIG_ATOM_ATTACK_PAW, COMSIG_MOB_ATTACK_ALIEN), PROC_REF(on_attack_generic))
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RegisterSignals(target, list(COMSIG_ATOM_ATTACK_BASIC_MOB, COMSIG_ATOM_ATTACK_ANIMAL), PROC_REF(on_attack_npc))
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RegisterSignal(target, COMSIG_PROJECTILE_PREHIT, PROC_REF(on_bullet_act))
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RegisterSignal(target, COMSIG_ATOM_PREHITBY, PROC_REF(on_hitby))
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RegisterSignal(target, COMSIG_ATOM_HULK_ATTACK, PROC_REF(on_attack_hulk))
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RegisterSignal(target, COMSIG_ATOM_ATTACK_MECH, PROC_REF(on_attack_mech))
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ADD_TRAIT(target, TRAIT_RELAYING_ATTACKER, REF(src))
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/datum/element/relay_attackers/Detach(datum/source, ...)
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. = ..()
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UnregisterSignal(source, list(
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COMSIG_ATOM_AFTER_ATTACKEDBY,
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COMSIG_ATOM_ATTACK_HAND,
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COMSIG_ATOM_ATTACK_PAW,
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COMSIG_ATOM_ATTACK_BASIC_MOB,
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COMSIG_ATOM_ATTACK_ANIMAL,
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COMSIG_MOB_ATTACK_ALIEN,
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COMSIG_PROJECTILE_PREHIT,
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COMSIG_ATOM_PREHITBY,
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COMSIG_ATOM_HULK_ATTACK,
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COMSIG_ATOM_ATTACK_MECH,
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))
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REMOVE_TRAIT(source, TRAIT_RELAYING_ATTACKER, REF(src))
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/datum/element/relay_attackers/proc/after_attackby(atom/target, obj/item/weapon, mob/attacker, list/modifiers)
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SIGNAL_HANDLER
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if(weapon.force)
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relay_attacker(target, attacker, weapon.damtype == STAMINA ? ATTACKER_STAMINA_ATTACK : ATTACKER_DAMAGING_ATTACK)
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/datum/element/relay_attackers/proc/on_attack_generic(atom/target, mob/living/attacker, list/modifiers)
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SIGNAL_HANDLER
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// Check for a shove.
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if(LAZYACCESS(modifiers, RIGHT_CLICK))
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relay_attacker(target, attacker, ATTACKER_SHOVING)
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return
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// Else check for combat mode.
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if(attacker.combat_mode)
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relay_attacker(target, attacker, ATTACKER_DAMAGING_ATTACK)
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return
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/datum/element/relay_attackers/proc/on_attack_npc(atom/target, mob/living/attacker)
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SIGNAL_HANDLER
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if(attacker.melee_damage_upper > 0)
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relay_attacker(target, attacker, ATTACKER_DAMAGING_ATTACK)
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/// Even if another component blocked this hit, someone still shot at us
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/datum/element/relay_attackers/proc/on_bullet_act(atom/target, obj/projectile/hit_projectile)
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SIGNAL_HANDLER
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if(!hit_projectile.is_hostile_projectile())
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return
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if(!ismob(hit_projectile.firer))
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return
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relay_attacker(target, hit_projectile.firer, hit_projectile.damage_type == STAMINA ? ATTACKER_STAMINA_ATTACK : ATTACKER_DAMAGING_ATTACK)
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/// Even if another component blocked this hit, someone still threw something
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/datum/element/relay_attackers/proc/on_hitby(atom/target, atom/movable/hit_atom, datum/thrownthing/throwingdatum)
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SIGNAL_HANDLER
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if(!isitem(hit_atom))
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return
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var/obj/item/hit_item = hit_atom
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if(!hit_item.throwforce)
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return
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var/mob/thrown_by = throwingdatum?.get_thrower()
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if(!ismob(thrown_by))
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return
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relay_attacker(target, thrown_by, hit_item.damtype == STAMINA ? ATTACKER_STAMINA_ATTACK : ATTACKER_DAMAGING_ATTACK)
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/datum/element/relay_attackers/proc/on_attack_hulk(atom/target, mob/attacker)
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SIGNAL_HANDLER
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relay_attacker(target, attacker, ATTACKER_DAMAGING_ATTACK)
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/datum/element/relay_attackers/proc/on_attack_mech(atom/target, obj/vehicle/sealed/mecha/mecha_attacker, mob/living/pilot, mecha_attack_cooldown)
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SIGNAL_HANDLER
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relay_attacker(target, mecha_attacker, ATTACKER_DAMAGING_ATTACK)
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/// Send out a signal identifying whoever just attacked us (usually a mob but sometimes a mech or turret)
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/datum/element/relay_attackers/proc/relay_attacker(atom/victim, atom/attacker, attack_flags)
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SEND_SIGNAL(victim, COMSIG_ATOM_WAS_ATTACKED, attacker, attack_flags)
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