replace deprecated setting methods

nether/furnace.lua

@@ -1,5 +1,5 @@
 -- minetest time speed
-local time_speed = tonumber(minetest.setting_get("time_speed"))
+local time_speed = tonumber(minetest.settings:get("time_speed"))
 if not time_speed then
 	time_speed = 1
 else

nether/guide.lua

@@ -291,7 +291,7 @@ local guide_size = {x=40, y=10, cx=0.2, cy=0.2}
 local formspec_offset = {x=0.25, y=0.50}
 local font_size
 if minetest.is_singleplayer() then
-	font_size = tonumber(minetest.setting_get("font_size")) or 13
+	font_size = tonumber(minetest.settings:get("font_size")) or 13
 else
 	font_size = 13
 end

nether/init.lua

@@ -142,7 +142,7 @@ local function do_ws_func(depth, a, x)
 	return SIZE * y / math.pi
 end
 
-local chunksize = minetest.setting_get("chunksize") or 5
+local chunksize = minetest.settings:get("chunksize") or 5
 local ws_lists = {}
 local function get_ws_list(a,x)
         ws_lists[a] = ws_lists[a] or {}

nether/pearl.lua

@@ -7,7 +7,7 @@ local function table_contains(t, v)
 	return false
 end
 
-local creative = minetest.setting_getbool("creative_mode")
+local creative = minetest.settings:get_bool("creative_mode")
 local function throw_pearl(item, player)
 	local playerpos = player:getpos()
 	playerpos.y = playerpos.y+1.625

nether/portal.lua

@@ -2,7 +2,7 @@
 
 -- kills the player if he uses PilzAdam portal
 local portal_target = nether.buildings+1
-local nether_prisons = minetest.setting_getbool("enable_damage")
+local nether_prisons = minetest.settings:get_bool("enable_damage")
 local obsidian_portal_kills = nether_prisons and true
 local mclike_portal = false
 
@@ -549,7 +549,7 @@ minetest.after(0.1, function()
 						player:get_player_name(),
 						"Warning: If you are in the nether you may not be able to find the way out!"
 					)
-					if not minetest.setting_getbool("creative_mode") then
+					if not minetest.settings:get_bool("creative_mode") then
 						stack:take_item()
 					end
 				end