[DNM][DNM][WIP] Projectile backend code port and update

Ports#54924,  #65061, #59804 from /tg.
adds auxiliary code from /tg to make code work.

code/modules/antagonists/blob/blob/blobs/blob_mobs.dm

@@ -46,10 +46,10 @@
 	else
 		adjustFireLoss(5)
 
-/mob/living/simple_animal/hostile/blob/CanPass(atom/movable/mover, turf/target)
+/mob/living/simple_animal/hostile/blob/CanAllowThrough(atom/movable/mover, turf/target)
+	. = ..()
 	if(istype(mover, /obj/structure/blob))
-		return 1
-	return ..()
+		return TRUE
 
 /mob/living/simple_animal/hostile/blob/Process_Spacemove(movement_dir = 0)
 	for(var/obj/structure/blob/B in range(1, src))

code/modules/antagonists/blob/blob/theblob.dm

@@ -8,6 +8,7 @@
 	opacity = 0
 	anchored = TRUE
 	layer = BELOW_MOB_LAYER
+	pass_flags_self = PASSBLOB
 	CanAtmosPass = ATMOS_PASS_PROC
 	var/point_return = 0 //How many points the blob gets back when it removes a blob of that type. If less than 0, blob cannot be removed.
 	max_integrity = 30
@@ -67,20 +68,9 @@
 /obj/structure/blob/BlockThermalConductivity()
 	return atmosblock
 
-/obj/structure/blob/CanPass(atom/movable/mover, turf/target)
-	if(istype(mover) && (mover.pass_flags & PASSBLOB))
-		return 1
-	return 0
-
 /obj/structure/blob/CanAtmosPass(turf/T)
 	return !atmosblock
 
-/obj/structure/blob/CanAStarPass(ID, dir, caller)
-	. = 0
-	if(ismovable(caller))
-		var/atom/movable/mover = caller
-		. = . || (mover.pass_flags & PASSBLOB)
-
 /obj/structure/blob/update_icon() //Updates color based on overmind color if we have an overmind.
 	if(overmind)
 		add_atom_colour(overmind.blobstrain.color, FIXED_COLOUR_PRIORITY)

code/modules/antagonists/swarmer/swarmer.dm

@@ -139,12 +139,12 @@
 	else
 		death()
 
-/mob/living/simple_animal/hostile/swarmer/CanPass(atom/movable/O)
+/mob/living/simple_animal/hostile/swarmer/CanAllowThrough(atom/movable/O)
+	. = ..()
 	if(istype(O, /obj/item/projectile/beam/disabler))//Allows for swarmers to fight as a group without wasting their shots hitting each other
 		return 1
 	if(isswarmer(O))
 		return 1
-	..()
 
 ////CTRL CLICK FOR SWARMERS AND SWARMER_ACT()'S////
 /mob/living/simple_animal/hostile/swarmer/AttackingTarget()
@@ -698,11 +698,12 @@
 	light_range = MINIMUM_USEFUL_LIGHT_RANGE
 	max_integrity = 50
 
-/obj/structure/swarmer/blockade/CanPass(atom/movable/O)
+/obj/structure/swarmer/blockade/CanAllowThrough(atom/movable/O)
+	. = ..()
 	if(isswarmer(O))
-		return 1
+		return TRUE
 	if(istype(O, /obj/item/projectile/beam/disabler))
-		return 1
+		return TRUE
 
 /mob/living/simple_animal/hostile/swarmer/proc/CreateSwarmer()
 	set name = "Replicate"