GC cleanup (#8211)

code/controllers/subsystems/mobs.dm

@@ -99,3 +99,10 @@ SUBSYSTEM_DEF(mobs)
 /datum/controller/subsystem/mobs/critfail()
 	..()
 	log_recent()
+
+//CHOMPEdit Begin
+//Mobs need to immediately removed from the SS list on Destroy
+/mob/Destroy()
+	. = ..()
+	SSmobs.currentrun -= src
+//CHOMPEdit End

code/controllers/subsystems/plants.dm

@@ -141,7 +141,8 @@ SUBSYSTEM_DEF(plants)
 			return
 
 /datum/controller/subsystem/plants/proc/add_plant(var/obj/effect/plant/plant)
-	processing |= plant
+	if(!QDELETED(plant)) //CHOMPEdit GC
+		processing |= plant //CHOMPEdit GC
 
 /datum/controller/subsystem/plants/proc/remove_plant(var/obj/effect/plant/plant)
 	processing -= plant

code/controllers/subsystems/radiation.dm

@@ -146,3 +146,10 @@ SUBSYSTEM_DEF(radiation)
 		return
 	var/turf/epicentre = locate(round(world.maxx / 2), round(world.maxy / 2), source.z)
 	flat_radiate(epicentre, power, world.maxx, respect_maint)
+
+//CHOMPEdit Begin
+//Putting this here so it can be promptly nuked if I ever redo the radiation subsystem
+/mob/living/Destroy()
+	. = ..()
+	SSradiation.listeners -= src
+//CHOMPEdit End

code/game/atoms_movable.dm

@@ -45,6 +45,7 @@
 			render_target = ref(src)
 			em_block = new(src, render_target)
 			add_overlay(list(em_block), TRUE)
+			RegisterSignal(em_block, COMSIG_PARENT_QDELETING, PROC_REF(emblocker_gc)) //CHOMPEdit deal with emblocker deleting. see atoms_movable_ch.dm
 	if(opacity)
 		AddElement(/datum/element/light_blocking)
 	if(icon_scale_x != DEFAULT_ICON_SCALE_X || icon_scale_y != DEFAULT_ICON_SCALE_Y || icon_rotation != DEFAULT_ICON_ROTATION)

code/game/atoms_movable_ch.dm

@@ -63,3 +63,9 @@
 
 /atom/movable/proc/show_message(msg, type, alt, alt_type)//Message, type of message (1 or 2), alternative message, alt message type (1 or 2)
 	return
+
+/atom/movable/proc/emblocker_gc(var/datum/source)
+	UnregisterSignal(source, COMSIG_PARENT_QDELETING)
+	cut_overlay(source)
+	if(em_block == source)
+		em_block = null

code/modules/projectiles/projectile.dm

@@ -469,7 +469,7 @@
 			impacted_mobs.Cut()
 		impacted_mobs = null
 
-	qdel(trajectory)
+	QDEL_NULL(trajectory) //CHOMPEdit
 	cleanup_beam_segments()
 
 	if(my_case)

modular_chomp/code/game/objects/effects/dark_growth.dm

@@ -115,6 +115,11 @@
 		dark_tile.unlinked()
 	return ..()
 
+/obj/effect/dark/Destroy()
+	. = ..()
+	if(linked_node)
+		linked_node.children_effects -= src
+
 /obj/effect/dark/process()
 	set background = 1
 	var/turf/U = get_turf(src)