init; changed textures

storage.lua

@@ -0,0 +1,33 @@
+
+local elevator_file = minetest.get_worldpath() .. "/elevator"
+
+local str = minetest.get_mod_storage and minetest.get_mod_storage()
+
+-- Central "network" table.
+elevator.motors = {}
+
+local function load_elevator()
+	local data = nil
+    if str and ((str.contains and str:contains("data")) or (str:get_string("data") and str:get_string("data") ~= "")) then
+        data = minetest.deserialize(str:get_string("data"))
+	else
+		local file = io.open(elevator_file)
+		if file then
+			data = minetest.deserialize(file:read("*all")) or {}
+			file:close()
+		end
+	end
+	elevator.motors = (data and data.motors) and data.motors or {}
+end
+
+elevator.save_elevator = function()
+    if str then
+        str:set_string("data", minetest.serialize({motors = elevator.motors}))
+        return
+    end
+    local f = io.open(elevator_file, "w")
+    f:write(minetest.serialize({motors = elevator.motors}))
+    f:close()
+end
+
+load_elevator()