a small fix to not create "empty" stargate files for each player and to cle...

hdastwb

2013-08-13 97749578b09f4bb2e9c88d7be569e2c2b72bb881

a small fix to not create "empty" stargate files for each player and to clean up such files that already exist

 stargate/stargate_gui.lua

@@ -3,7 +3,13 @@
stargate_network["players"]={}
stargate.current_page={}

local function table_empty(tab)
    for key in pairs(tab) do return false end
    return true
end

stargate.save_data = function(table_pointer)
    if table_empty(stargate_network[table_pointer]) then return end
    local data = minetest.serialize( stargate_network[table_pointer] )
    local path = minetest.get_worldpath().."/stargate_"..table_pointer..".data"
    local file = io.open( path, "w" )
@@ -22,6 +28,7 @@
        local data = file:read("*all")
        stargate_network[table_pointer] = minetest.deserialize( data )
        file:close()
        if table_empty(stargate_network[table_pointer]) then os.remove(path) end
    return true
    else return nil
    end
@@ -31,7 +38,8 @@
if stargate.restore_data("registered_players") ~= nil then
    for __,tab in ipairs(stargate_network["registered_players"]) do
        if stargate.restore_data(tab["player_name"]) == nil  then
            print ("[stargate] Error loading data!")
            --print ("[stargate] Error loading data!")
            stargate_network[tab["player_name"]] = {}
        end
    end
else