Removes free roundstart RCDs, adds foam grenades to EVA (#48482)

* RCD is premium, EVA RCD replaced with foam grenades, foam better

* vendor stock down to 2

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

@@ -172,7 +172,7 @@
 
 /obj/effect/particle_effect/foam/proc/spread_foam()
 	var/turf/t_loc = get_turf(src)
-	for(var/turf/T in t_loc.GetAtmosAdjacentTurfs())
+	for(var/turf/T in t_loc.reachableAdjacentTurfs())
 		var/obj/effect/particle_effect/foam/foundfoam = locate() in T //Don't spread foam where there's already foam!
 		if(foundfoam)
 			continue
@@ -238,7 +238,7 @@
 
 	amount = round(sqrt(amt / 2), 1)
 	carry.copy_to(chemholder, carry.total_volume)
-	if(metaltype != 0)
+	if(metaltype)
 		metal = metaltype
 
 /datum/effect_system/foam_spread/start()

code/game/objects/items/RCD.dm

@@ -187,7 +187,7 @@ RLD
 	icon_state = "rcd"
 	lefthand_file = 'icons/mob/inhands/equipment/tools_lefthand.dmi'
 	righthand_file = 'icons/mob/inhands/equipment/tools_righthand.dmi'
-	custom_price = 1700
+	custom_premium_price = 1700
 	max_matter = 160
 	slot_flags = ITEM_SLOT_BELT
 	item_flags = NO_MAT_REDEMPTION | NOBLUDGEON