Fixes projectiles not hitting people resting, a bit of refactoring of how projectile target collision is done (#42241)

* Fixes projectiles not hitting mobs, some refactoring too

* some stuff for projectile can hit target to work with not being ontop of an object

* Yeah let's just refactor bullet_act while we're at it.

* Yeah let's just refactor bullet_act while we're at it.

* Yeah let's just refactor bullet_act while we're at it.

* CanPass returns true to projectiles regardless of hit

* snakecase?

code/game/objects/structures/holosign.dm

@@ -106,6 +106,7 @@
 		take_damage(10, BRUTE, "melee", 1)	//Tasers aren't harmful.
 	if(istype(P, /obj/item/projectile/beam/disabler))
 		take_damage(5, BRUTE, "melee", 1)	//Disablers aren't harmful.
+	return BULLET_ACT_HIT
 
 /obj/structure/holosign/barrier/medical
 	name = "\improper PENLITE holobarrier"
@@ -151,6 +152,7 @@
 
 /obj/structure/holosign/barrier/cyborg/hacked/bullet_act(obj/item/projectile/P)
 	take_damage(P.damage, BRUTE, "melee", 1)	//Yeah no this doesn't get projectile resistance.
+	return BULLET_ACT_HIT
 
 /obj/structure/holosign/barrier/cyborg/hacked/proc/cooldown()
 	shockcd = FALSE

code/game/objects/structures/reflector.dm

@@ -67,13 +67,13 @@
 		return ..()
 	if(auto_reflect(P, pdir, ploc, pangle) != -1)
 		return ..()
-	return -1
+	return BULLET_ACT_FORCE_PIERCE
 
 /obj/structure/reflector/proc/auto_reflect(obj/item/projectile/P, pdir, turf/ploc, pangle)
 	P.ignore_source_check = TRUE
 	P.range = P.decayedRange
 	P.decayedRange = max(P.decayedRange--, 0)
-	return -1
+	return BULLET_ACT_FORCE_PIERCE
 
 /obj/structure/reflector/attackby(obj/item/W, mob/user, params)
 	if(admin)

code/game/objects/structures/statues.dm

@@ -124,7 +124,7 @@
 			message_admins("Plasma statue ignited by [Proj]. No known firer, in [ADMIN_VERBOSEJMP(T)]")
 			log_game("Plasma statue ignited by [Proj] in [AREACOORD(T)]. No known firer.")
 		PlasmaBurn(2500)
-	..()
+	. = ..()
 
 /obj/structure/statue/plasma/attackby(obj/item/W, mob/user, params)
 	if(W.is_hot() > 300 && !QDELETED(src))//If the temperature of the object is over 300, then ignite

code/game/objects/structures/target_stake.dm

@@ -73,4 +73,4 @@
 	if(pinned_target)
 		pinned_target.bullet_act(P)
 	else
-		..()
+		. = ..()