Added signals to attack_ai(), attack_robot(), and interact()

code/__DEFINES/dcs/signals/signals_atom/signals_atom_attack.dm

@@ -31,3 +31,6 @@
 #define COMSIG_ATOM_ATTACK_ROBOT "atom_attack_robot"
 ///from base of atom/attack_silicon(): (mob/user)
 #define COMSIG_ATOM_ATTACK_SILICON "atom_attack_silicon"
+
+///from base of atom/interact(): (mob/user)
+#define COMSIG_ATOM_INTERACT "atom_interact"

code/_onclick/other_mobs.dm

@@ -78,12 +78,15 @@
 		return FALSE
 
 /atom/proc/interact(mob/user)
+	if(SEND_SIGNAL(src, COMSIG_ATOM_INTERACT, user))
+		return TRUE
 	if(interaction_flags_atom & INTERACT_ATOM_NO_FINGERPRINT_INTERACT)
 		add_hiddenprint(user)
 	else
 		add_fingerprint(user)
 	if(interaction_flags_atom & INTERACT_ATOM_UI_INTERACT)
-		return ui_interact(user)
+		ui_interact(user)
+		return TRUE
 	return FALSE
 
 /mob/living/carbon/RangedAttack(atom/A, mouseparams)

code/game/machinery/_machinery.dm

@@ -465,6 +465,8 @@ Class Procs:
 	if(isAI(user))
 		CRASH("An AI just tried to run attack_robot().") // They should not be running the same procs anymore.
 	. = ..()
+	if(.)
+		return
 	if(!(interaction_flags_machine & INTERACT_MACHINE_ALLOW_SILICON) && !IsAdminGhost(user))
 		return FALSE
 	if(Adjacent(user) && can_buckle && has_buckled_mobs()) //so that borgs (but not AIs, sadly (perhaps in a future PR?)) can unbuckle people from machines
@@ -481,6 +483,8 @@ Class Procs:
 	if(iscyborg(user))
 		CRASH("A cyborg just tried to run attack_ai().") // They should not be running the same procs anymore.
 	. = ..()
+	if(.)
+		return
 	if(!(interaction_flags_machine & INTERACT_MACHINE_ALLOW_SILICON) && !IsAdminGhost(user))
 		return FALSE
 

code/game/objects/items.dm

@@ -434,6 +434,8 @@ GLOBAL_VAR_INIT(rpg_loot_items, FALSE)
 	. += research_msg.Join()
 
 /obj/item/interact(mob/user)
+	if(SEND_SIGNAL(src, COMSIG_ATOM_INTERACT, user))
+		. = TRUE
 	add_fingerprint(user)
 	ui_interact(user)
 

code/game/objects/items/devices/camera_bug.dm

@@ -47,9 +47,6 @@
 		tracking = null
 	return ..()
 
-/obj/item/camera_bug/interact(mob/user)
-	ui_interact(user)
-
 /obj/item/camera_bug/ui_interact(mob/user = usr)
 	. = ..()
 	var/datum/browser/popup = new(user, "camerabug","Camera Bug",nref=src)

code/game/objects/items/devices/traitordevices.dm

@@ -111,10 +111,6 @@ effective or pretty fucking useless.
 /obj/item/healthanalyzer/rad_laser/attack_self(mob/user)
 	interact(user)
 
-/obj/item/healthanalyzer/rad_laser/interact(mob/user)
-	ui_interact(user)
-
-
 /obj/item/healthanalyzer/rad_laser/ui_state(mob/user)
 	return GLOB.hands_state
 

code/game/objects/structures/crates_lockers/closets.dm

@@ -10,6 +10,7 @@
 	armor = list(MELEE = 20,  BULLET = 10, LASER = 10, ENERGY = 0, BOMB = 10, BIO = 0, RAD = 0, FIRE = 70, ACID = 60, STAMINA = 0, BLEED = 0)
 	blocks_emissive = EMISSIVE_BLOCK_GENERIC
 	pass_flags_self = LETPASSCLICKS | PASSSTRUCTURE
+	interaction_flags_atom = NONE
 	var/contents_initialised = FALSE
 	var/enable_door_overlay = TRUE
 	var/has_opened_overlay = TRUE

code/modules/clothing/ears/_ears.dm

@@ -68,9 +68,6 @@
 		return TRUE
 	interact(user)
 
-/obj/item/clothing/ears/headphones/interact(mob/user)
-	ui_interact(user)
-
 /obj/item/clothing/ears/headphones/ui_interact(mob/living/user)
 	if(!isliving(user) || user.stat != CONSCIOUS || (HAS_TRAIT(user, TRAIT_HANDS_BLOCKED) && !ispAI(user)))
 		return

code/modules/instruments/items.dm

@@ -37,9 +37,6 @@
 		return TRUE
 	interact(user)
 
-/obj/item/instrument/interact(mob/user)
-	ui_interact(user)
-
 /obj/item/instrument/ui_interact(mob/living/user)
 	if((!isliving(user) || user.stat != CONSCIOUS || HAS_TRAIT(user, TRAIT_HANDS_BLOCKED)) && !ispAI(user))
 		return

code/modules/modular_computers/computers/item/computer_ui.dm

@@ -1,6 +1,6 @@
 /obj/item/modular_computer/interact(mob/user)
 	if(enabled)
-		ui_interact(user)
+		return ..()
 	else
 		turn_on(user)