[MIRROR] Dunking handle_atom_del() in the trash bin. [MDB IGNORE] (#23183)

* Dunking handle_atom_del() in the trash bin.

* Update _box_magazine.dm

* Modular paths

---------

Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>
Co-authored-by: Giz <13398309+vinylspiders@users.noreply.github.com>

code/game/objects/structures/ai_core.dm

@@ -46,16 +46,16 @@
 			if(AI_READY_CORE)
 				. += span_notice("The monitor's connection can be <b>cut</b>[core_mmi?.brainmob?.mind && !suicide_check() ? " the neural interface can be <b>screwed</b> in." : "."]")
 
-/obj/structure/ai_core/handle_atom_del(atom/A)
-	if(A == circuit)
+/obj/structure/ai_core/Exited(atom/movable/gone, direction)
+	. = ..()
+	if(gone == circuit)
 		circuit = null
 		if((state != GLASS_CORE) && (state != AI_READY_CORE))
 			state = EMPTY_CORE
 			update_appearance()
-	if(A == core_mmi)
+	if(gone == core_mmi)
 		core_mmi = null
-	return ..()
-
+		update_appearance()
 
 /obj/structure/ai_core/Destroy()
 	QDEL_NULL(circuit)
@@ -200,9 +200,7 @@
 					P.play_tool_sound(src)
 					balloon_alert(user, "circuit board removed")
 					state = EMPTY_CORE
-					update_appearance()
 					circuit.forceMove(loc)
-					circuit = null
 					return
 			if(SCREWED_CORE)
 				if(P.tool_behaviour == TOOL_SCREWDRIVER && circuit)
@@ -298,8 +296,6 @@
 					P.play_tool_sound(src)
 					balloon_alert(user, "removed [AI_CORE_BRAIN(core_mmi)]")
 					core_mmi.forceMove(loc)
-					core_mmi = null
-					update_appearance()
 					return
 
 			if(GLASS_CORE)

code/game/objects/structures/displaycase.dm

@@ -47,13 +47,13 @@
 	if(vname in list(NAMEOF(src, open), NAMEOF(src, showpiece), NAMEOF(src, custom_glass_overlay)))
 		update_appearance()
 
-/obj/structure/displaycase/handle_atom_del(atom/A)
-	if(A == electronics)
+/obj/structure/displaycase/Exited(atom/movable/gone, direction)
+	. = ..()
+	if(gone == electronics)
 		electronics = null
-	if(A == showpiece)
+	if(gone == showpiece)
 		showpiece = null
 		update_appearance()
-	return ..()
 
 /obj/structure/displaycase/Destroy()
 	QDEL_NULL(electronics)
@@ -73,8 +73,6 @@
 	if(QDELETED(showpiece))
 		return
 	showpiece.forceMove(drop_location())
-	showpiece = null
-	update_appearance()
 
 /obj/structure/displaycase/play_attack_sound(damage_amount, damage_type = BRUTE, damage_flag = 0)
 	switch(damage_type)

code/game/objects/structures/extinguisher.dm

@@ -46,8 +46,7 @@ MAPPING_DIRECTIONAL_HELPERS(/obj/structure/extinguisher_cabinet, 29)
 
 /obj/structure/extinguisher_cabinet/Destroy()
 	if(stored_extinguisher)
-		qdel(stored_extinguisher)
-		stored_extinguisher = null
+		QDEL_NULL(stored_extinguisher)
 	return ..()
 
 /obj/structure/extinguisher_cabinet/contents_explosion(severity, target)
@@ -62,8 +61,8 @@ MAPPING_DIRECTIONAL_HELPERS(/obj/structure/extinguisher_cabinet, 29)
 		if(EXPLODE_LIGHT)
 			SSexplosions.low_mov_atom += stored_extinguisher
 
-/obj/structure/extinguisher_cabinet/handle_atom_del(atom/A)
-	if(A == stored_extinguisher)
+/obj/structure/extinguisher_cabinet/Exited(atom/movable/gone, direction)
+	if(gone == stored_extinguisher)
 		stored_extinguisher = null
 		update_appearance(UPDATE_ICON)
 
@@ -104,11 +103,9 @@ MAPPING_DIRECTIONAL_HELPERS(/obj/structure/extinguisher_cabinet, 29)
 	if(stored_extinguisher)
 		user.put_in_hands(stored_extinguisher)
 		user.balloon_alert(user, "extinguisher removed")
-		stored_extinguisher = null
 		if(!opened)
 			opened = 1
 			playsound(loc, 'sound/machines/click.ogg', 15, TRUE, -3)
-		update_appearance(UPDATE_ICON)
 	else
 		toggle_cabinet(user)
 

code/game/objects/structures/guncase.dm

@@ -92,7 +92,6 @@
 		return
 	if(!user.put_in_hands(weapon))
 		weapon.forceMove(get_turf(src))
-	update_appearance()
 
 /**
  * check_menu: Checks if we are allowed to interact with a radial menu
@@ -109,7 +108,8 @@
 		return FALSE
 	return TRUE
 
-/obj/structure/guncase/handle_atom_del(atom/A)
+/obj/structure/guncase/Exited(atom/movable/gone, direction)
+	. = ..()
 	update_appearance()
 
 /obj/structure/guncase/contents_explosion(severity, target)

code/game/objects/structures/headpike.dm

@@ -53,24 +53,26 @@
 	MA.pixel_x = pixel_x
 	. += victim
 
-/obj/structure/headpike/handle_atom_del(atom/A)
-	if(A == victim)
+/obj/structure/headpike/Exited(atom/movable/gone, direction)
+	. = ..()
+	if(gone != victim && gone != spear)
+		return
+	if(gone == victim)
 		victim = null
-	if(A == spear)
+	if(gone == spear)
 		spear = null
 	if(!QDELETED(src))
 		deconstruct(TRUE)
-	return ..()
 
 /obj/structure/headpike/deconstruct(disassembled)
-	if(victim) //Make sure the head always comes off
-		victim.forceMove(drop_location())
-		victim = null
+	var/obj/item/bodypart/head/our_head = victim
+	var/obj/item/spear/our_spear = spear
+	victim = null
+	spear = null
+	our_head?.forceMove(drop_location()) //Make sure the head always comes off
 	if(!disassembled)
 		return ..()
-	if(spear)
-		spear.forceMove(drop_location())
-		spear = null
+	our_spear?.forceMove(drop_location())
 	return ..()
 
 /obj/structure/headpike/attack_hand(mob/user, list/modifiers)

code/game/objects/structures/petrified_statue.dm

@@ -44,8 +44,9 @@
 /obj/structure/statue/petrified/contents_explosion(severity, target)
 	return
 
-/obj/structure/statue/petrified/handle_atom_del(atom/A)
-	if(A == petrified_mob)
+/obj/structure/statue/petrified/Exited(atom/movable/gone, direction)
+	. = ..()
+	if(gone == petrified_mob)
 		petrified_mob = null
 
 /obj/structure/statue/petrified/Destroy()
@@ -65,12 +66,11 @@
 
 	if(petrified_mob)
 		petrified_mob.status_flags &= ~GODMODE
-		petrified_mob.forceMove(loc)
 		REMOVE_TRAIT(petrified_mob, TRAIT_MUTE, STATUE_MUTE)
 		REMOVE_TRAIT(petrified_mob, TRAIT_NOBLOOD, MAGIC_TRAIT)
 		petrified_mob.take_overall_damage((petrified_mob.health - atom_integrity + 100)) //any new damage the statue incurred is transfered to the mob
 		petrified_mob.faction -= FACTION_MIMIC
-		petrified_mob = null
+		petrified_mob.forceMove(loc)
 	return ..()
 
 /obj/structure/statue/petrified/deconstruct(disassembled = TRUE)

code/game/objects/structures/tank_holder.dm

@@ -68,7 +68,6 @@
 	new /obj/item/stack/rods(Tsec, 2)
 	if(tank)
 		tank.forceMove(Tsec)
-		after_detach_tank()
 	qdel(src)
 
 /obj/structure/tank_holder/attack_paw(mob/user, list/modifiers)
@@ -83,12 +82,11 @@
 	add_fingerprint(user)
 	tank.add_fingerprint(user)
 	user.put_in_hands(tank)
-	after_detach_tank()
 
-/obj/structure/tank_holder/handle_atom_del(atom/A)
-	if(A == tank)
+/obj/structure/tank_holder/Exited(atom/movable/gone, direction)
+	. = ..()
+	if(gone == tank)
 		after_detach_tank()
-	return ..()
 
 /obj/structure/tank_holder/contents_explosion(severity, target)
 	if(!tank)