mcl_util.is_in_void

mods/CORE/mcl_util/init.lua

@@ -194,3 +194,14 @@ end
 function mcl_util.is_fuel(item)
 	return minetest.get_craft_result({method="fuel", width=1, items={item}}).time ~= 0
 end
+
+-- For a given position, returns a 2-tuple:
+-- 1st return value: true if pos is in void
+-- 2nd return value: true if it is in the deadly part of the void
+function mcl_util.is_in_void(pos)
+	local void, void_deadly
+	void = pos.y < mcl_vars.bedrock_overworld_min
+	void_deadly = pos.y < mcl_vars.bedrock_overworld_min - 65
+	return void, void_deadly
+end
+

mods/PLAYER/playerplus/depends.txt

@@ -1,3 +1,4 @@
 mcl_init
+mcl_util
 mcl_core
 3d_armor?

mods/PLAYER/playerplus/init.lua

@@ -129,7 +129,8 @@ minetest.register_globalstep(function(dtime)
 			-- This only works beause weather_pack currently does not touch the sky for players below the height used for this check.
 			-- There should be a real skybox API.
 		end
-		if pos.y < mcl_vars.bedrock_overworld_min - 65 then
+		local void, void_deadly = mcl_util.is_in_void(pos)
+		if void_deadly then
 			-- Player is deep into the void, deal void damage
 			if player:get_hp() > 0 then
 				player:set_hp(player:get_hp() - 4)