Fixes projectiles passing through the Desecrated Duel arena (#22588)

* Fixy fixy

* Make it not affect lavaland elites

* Update code/modules/mob/living/simple_animal/hostile/mining/elites/elite.dm

Co-authored-by: Contrabang <91113370+Contrabang@users.noreply.github.com>

---------

Co-authored-by: Contrabang <91113370+Contrabang@users.noreply.github.com>

code/modules/antagonists/vampire/vampire_powers/gargantua_powers.dm

@@ -271,7 +271,7 @@
 
 /obj/effect/proc_holder/spell/vampire/arena/proc/arena_trap(turf/target_turf)
 	for(var/tumor_range_turfs in circle_edge_turfs(target_turf, ARENA_SIZE))
-		tumor_range_turfs = new /obj/effect/temp_visual/elite_tumor_wall(tumor_range_turfs, src)
+		tumor_range_turfs = new /obj/effect/temp_visual/elite_tumor_wall/gargantua(tumor_range_turfs, src)
 		all_temp_walls += tumor_range_turfs
 
 /obj/effect/proc_holder/spell/vampire/arena/proc/fighters_check(mob/living/user)

code/modules/mob/living/simple_animal/hostile/mining/elites/elite.dm

@@ -473,6 +473,11 @@ While using this makes the system rely on OnFire, it still gives options for tim
 	if(isliving(mover))
 		return FALSE
 
+/obj/effect/temp_visual/elite_tumor_wall/gargantua/CanPass(atom/movable/mover, border_dir)
+	. = ..()
+	if(istype(mover, /obj/item/projectile))
+		return FALSE
+		
 /obj/item/gps/internal/tumor
 	icon_state = null
 	gpstag = "Cancerous Signal"