Refactors reagent exposure code (#51396)

* Refactors reagent exposure code

Removes istype clutter. Renames a few procs

* == TRUE

Adjusts COMPONENT_NO_EXPOSE_REAGENTS bitflag offset.

TODO: Remove comment

Co-authored-by: Rohesie <rohesie@gmail.com>

* == TRUE

Adjusts COMONENT_NO_EXPOSE REAGENTS bitflag offset.

Removes comment

Co-authored-by: Rohesie <rohesie@gmail.com>

code/game/objects/effects/effect_system/effects_foam.dm

@@ -142,7 +142,7 @@
 		if(O.type == src.type)
 			continue
 		if(lifetime % reagent_divisor)
-			reagents.reaction(O, VAPOR, fraction)
+			reagents.expose(O, VAPOR, fraction)
 	var/hit = 0
 	for(var/mob/living/L in range(0,src))
 		hit += foam_mob(L)
@@ -150,7 +150,7 @@
 		lifetime++ //this is so the decrease from mobs hit and the natural decrease don't cumulate.
 	var/T = get_turf(src)
 	if(lifetime % reagent_divisor)
-		reagents.reaction(T, VAPOR, fraction)
+		reagents.expose(T, VAPOR, fraction)
 
 	if(--amount < 0)
 		return
@@ -163,7 +163,7 @@
 		return 0
 	var/fraction = 1/initial(reagent_divisor)
 	if(lifetime % reagent_divisor)
-		reagents.reaction(L, VAPOR, fraction)
+		reagents.expose(L, VAPOR, fraction)
 	lifetime--
 	return 1
 

code/game/objects/effects/effect_system/effects_smoke.dm

@@ -232,9 +232,9 @@
 		for(var/atom/movable/AM in T)
 			if(AM.type == src.type)
 				continue
-			reagents.reaction(AM, TOUCH, fraction)
+			reagents.expose(AM, TOUCH, fraction)
 
-		reagents.reaction(T, TOUCH, fraction)
+		reagents.expose(T, TOUCH, fraction)
 		return 1
 
 /obj/effect/particle_effect/smoke/chem/smoke_mob(mob/living/carbon/M)
@@ -247,7 +247,7 @@
 		return 0
 	var/fraction = 1/initial(lifetime)
 	reagents.copy_to(C, fraction*reagents.total_volume)
-	reagents.reaction(M, INGEST, fraction)
+	reagents.expose(M, INGEST, fraction)
 	return 1
 
 

code/game/objects/effects/effect_system/effects_water.dm

@@ -21,7 +21,7 @@
 
 /obj/effect/particle_effect/water/Bump(atom/A)
 	if(reagents)
-		reagents.reaction(A)
+		reagents.expose(A)
 	return ..()