Regularily damage and delete entities in void

mods/ENTITIES/mcl_void_damage/depends.txt

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+mcl_worlds
+mcl_death_messages

mods/ENTITIES/mcl_void_damage/description.txt

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+Deal damage to entities stuck in the deep void

mods/ENTITIES/mcl_void_damage/init.lua

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+local voidtimer = 0
+
+minetest.register_globalstep(function(dtime)
+	voidtimer = voidtimer + dtime
+	if voidtimer > 0.5 then
+		voidtimer = 0
+		local objs = minetest.object_refs
+		local enable_damage = minetest.settings:get_bool("enable_damage")
+		for id, obj in pairs(objs) do
+			local pos = obj:get_pos()
+			local void, void_deadly = mcl_worlds.is_in_void(pos)
+			if void_deadly then
+				local is_player = obj:is_player()
+				local ent = obj:get_luaentity()
+				local immortal_val = obj:get_armor_groups().immortal
+				local is_immortal = false
+				if immortal_val and immortal_val > 0 then
+					is_immortal = true
+				end
+				if is_immortal or not enable_damage then
+					if is_player then
+						-- If damage is disabled, we can't kill players.
+						-- So we just teleport the player back to spawn.
+						local spawn = mcl_spawn.get_spawn_pos(obj)
+						obj:set_pos(spawn)
+						mcl_worlds.dimension_change(obj, mcl_worlds.pos_to_dimension(spawn))
+						minetest.chat_send_player(obj:get_player_name(), "The void is off-limits to you!")
+					else
+						obj:remove()
+					end
+				elseif enable_damage and not is_immortal then
+					-- Damage enabled, not immortal: Deal void damage (4 HP / 0.5 seconds)
+					if obj:get_hp() > 0 then
+						if is_player then
+							mcl_death_messages.player_damage(obj, string.format("%s fell into the endless void.", obj:get_player_name()))
+						end
+						obj:set_hp(obj:get_hp() - 4)
+					end
+				end
+			end
+		end
+	end
+end)

mods/ENTITIES/mcl_void_damage/mod.conf

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+name = mcl_void_damage