[MIRROR] Begin clickcode attack_self fix (#12173)

Co-authored-by: Cameron Lennox <killer65311@gmail.com>

code/modules/shieldgen/directional_shield.dm

@@ -98,6 +98,9 @@
 	var/high_color = "#0099FF"			// Color the shield will be when at max health.  A light blue.
 	var/low_color = "#FF0000"			// Color the shield will drift towards as health is lowered.  Deep red.
 
+	///Var for attack_self chain
+	var/special_handling = FALSE
+
 /obj/item/shield_projector/Initialize(mapload)
 	START_PROCESSING(SSobj, src)
 	AddComponent(/datum/component/recursive_move)
@@ -186,7 +189,12 @@
 	for(var/obj/effect/directional_shield/S in active_shields)
 		S.update_color(new_color)
 
-/obj/item/shield_projector/attack_self(var/mob/living/user)
+/obj/item/shield_projector/attack_self(mob/user)
+	. = ..(user)
+	if(.)
+		return TRUE
+	if(special_handling)
+		return FALSE
 	if(active)
 		if(always_on)
 			to_chat(user, span_warning("You can't seem to deactivate \the [src]."))
@@ -362,6 +370,7 @@
 
 	var/obj/mecha/my_mecha = null
 	var/obj/item/mecha_parts/mecha_equipment/combat_shield/my_tool = null
+	special_handling = TRUE
 
 /obj/item/shield_projector/line/exosuit/process()
 	..()
@@ -378,7 +387,10 @@
 	else
 		my_tool.set_ready_state(TRUE)
 
-/obj/item/shield_projector/line/exosuit/attack_self(var/mob/living/user)
+/obj/item/shield_projector/line/exosuit/attack_self(mob/living/user)
+	. = ..(user)
+	if(.)
+		return TRUE
 	if(active)
 		if(always_on)
 			to_chat(user, span_warning("You can't seem to deactivate \the [src]."))

code/modules/shieldgen/handheld_defuser.dm

@@ -44,6 +44,9 @@
 		icon_state = "hdiffuser_off"
 
 /obj/item/shield_diffuser/attack_self(mob/user)
+	. = ..(user)
+	if(.)
+		return TRUE
 	enabled = !enabled
 	update_icon()
 	if(enabled)