disable custom day_night_ratio in survival

player.lua

@@ -56,6 +56,25 @@ function creative_regions:restore_player_inventory(player, listname)
 	end
 end
 
+function creative_regions:save_player_day_night_ratio(player)
+	local current_day_night_ratio = player:get_day_night_ratio()
+	if current_day_night_ratio == nil then current_day_night_ratio = -1 end
+	local pmeta = player:get_meta()
+	pmeta:set_int("creative_regions_day_night_ratio", current_day_night_ratio)
+end
+
+function creative_regions:restore_player_day_night_ratio(player)
+	local pmeta = player:get_meta()
+	local current_day_night_ratio = player:get_day_night_ratio()
+	local saved_day_night_ratio = pmeta:get_int("creative_region_day_night_ratio")
+	if saved_day_night_ratio ~= nil then
+		if saved_day_night_ratio == -1 then saved_day_night_ratio = nil end
+		player:override_day_night_ratio(saved_day_night_ratio)
+		pmeta:set_int("creative_regions_day_night_ratio", nil)
+	end
+	return current_day_night_ratio
+end
+
 function creative_regions:player_enter_region(player, new_privs_table, initialize)
 	local name = player:get_player_name()
 	local has_creative = minetest.check_player_privs(name, {creative=true})
@@ -116,6 +135,7 @@ function creative_regions:player_enter_region(player, new_privs_table, initializ
 --				player:get_meta():set_string("hunger_ng:hunger_disabled", 1)
 				hunger_ng.configure_hunger(name, 'disable')
 			end
+			creative_regions:restore_player_day_night_ratio(player)
 		elseif new_mode == "arena" then
 			local inv = player:get_inventory()
 			inv:set_list("main", {})
@@ -123,6 +143,8 @@ function creative_regions:player_enter_region(player, new_privs_table, initializ
 			if minetest.get_modpath("hunger_ng") then
 				hunger_ng.configure_hunger(name, 'enable')
 			end
+			creative_regions:save_player_day_night_ratio(player)
+			player:override_day_night_ratio(nil)
 		end
 
 	end