Fixes for projectiles bugs (#42463)

* Bandaid fixes for bugs with reflectors projectiles and plasma cutters

* * Fixed bouncing piercing projectiles on qdel
* Fixed projectiles reflection not working
* Fixed heavy beam pulses not penetrating
* Changed numerous projectiles procs to use the new BULLET_ACT_* format

* Final conversions to new BULLET_ACT_* format

code/modules/mob/living/carbon/human/human_defense.dm

@@ -76,7 +76,7 @@
 						new_angle_s -= 360
 					P.setAngle(new_angle_s)
 
-				return -1 // complete projectile permutation
+				return BULLET_ACT_FORCE_PIERCE // complete projectile permutation
 
 		if(check_shields(P, P.damage, "the [P.name]", PROJECTILE_ATTACK, P.armour_penetration))
 			P.on_hit(src, 100, def_zone)

code/modules/mob/living/carbon/human/species_types/golems.dm

@@ -360,8 +360,8 @@
 			playsound(H, 'sound/effects/shovel_dig.ogg', 70, 1)
 			H.visible_message("<span class='danger'>The [P.name] sinks harmlessly in [H]'s sandy body!</span>", \
 			"<span class='userdanger'>The [P.name] sinks harmlessly in [H]'s sandy body!</span>")
-			return 2
-	return 0
+			return BULLET_ACT_BLOCK
+	return BULLET_ACT_HIT
 
 //Reflects lasers and resistant to burn damage, but very vulnerable to brute damage. Shatters on death.
 /datum/species/golem/glass
@@ -397,8 +397,8 @@
 				var/turf/target = get_turf(P.starting)
 				// redirect the projectile
 				P.preparePixelProjectile(locate(CLAMP(target.x + new_x, 1, world.maxx), CLAMP(target.y + new_y, 1, world.maxy), H.z), H)
-			return -1
-	return 0
+			return BULLET_ACT_FORCE_PIERCE
+	return BULLET_ACT_HIT
 
 //Teleports when hit or when it wants to
 /datum/species/golem/bluespace
@@ -823,10 +823,10 @@
 
 /datum/species/golem/bronze/bullet_act(obj/item/projectile/P, mob/living/carbon/human/H)
 	if(!(world.time > last_gong_time + gong_cooldown))
-		return 0
+		return BULLET_ACT_HIT
 	if(P.flag == "bullet" || P.flag == "bomb")
 		gong(H)
-		return 0
+		return BULLET_ACT_HIT
 
 /datum/species/golem/bronze/spec_hitby(atom/movable/AM, mob/living/carbon/human/H)
 	..()

code/modules/mob/living/carbon/human/species_types/shadowpeople.dm

@@ -64,8 +64,8 @@
 		if(light_amount < SHADOW_SPECIES_LIGHT_THRESHOLD)
 			H.visible_message("<span class='danger'>[H] dances in the shadows, evading [P]!</span>")
 			playsound(T, "bullet_miss", 75, 1)
-			return -1
-	return 0
+			return BULLET_ACT_FORCE_PIERCE
+	return BULLET_ACT_HIT
 
 /datum/species/shadow/nightmare/check_roundstart_eligible()
 	return FALSE

code/modules/mob/living/damage_procs.dm

@@ -123,7 +123,7 @@
 
 /mob/living/proc/apply_effects(stun = 0, knockdown = 0, unconscious = 0, irradiate = 0, slur = 0, stutter = 0, eyeblur = 0, drowsy = 0, blocked = FALSE, stamina = 0, jitter = 0, paralyze = 0, immobilize = 0)
 	if(blocked >= 100)
-		return 0
+		return BULLET_ACT_BLOCK
 	if(stun)
 		apply_effect(stun, EFFECT_STUN, blocked)
 	if(knockdown)
@@ -148,7 +148,7 @@
 		apply_damage(stamina, STAMINA, null, blocked)
 	if(jitter)
 		apply_effect(jitter, EFFECT_JITTER, blocked)
-	return 1
+	return BULLET_ACT_HIT
 
 
 /mob/living/proc/getBruteLoss()

code/modules/mob/living/living_defense.dm

@@ -40,7 +40,7 @@
 	return FALSE
 
 /mob/living/proc/on_hit(obj/item/projectile/P)
-	return
+	return BULLET_ACT_HIT
 
 /mob/living/bullet_act(obj/item/projectile/P, def_zone)
 	var/armor = run_armor_check(def_zone, P.flag, "","",P.armour_penetration)

code/modules/mob/living/simple_animal/constructs.dm

@@ -171,7 +171,7 @@
 					new_angle_s -= 360
 				P.setAngle(new_angle_s)
 
-			return -1 // complete projectile permutation
+			return BULLET_ACT_FORCE_PIERCE // complete projectile permutation
 
 	return ..()