function initArray(m)
    local array = {}
    for i = 1, m do
        array[i]=0
    end
    return array
end

level=initArray(32)
exp=initArray(32)

function string.split(text,b)
    local cmd = {}

    if b then
        b = b
    else
        b = "%s"
    end

    b = "[^"..b.."]+"

    for o in string.gmatch(text,b) do
        table.insert(cmd,o)
    end
    return cmd
end

function totable(t,match)
    local cmd = {}
    if not match then match = "[^%s]+" end
    for word in string.gmatch(t, match) do
        table.insert(cmd, word)
    end
    return cmd
end 

addhook("ms100","save_hud")
function save_hud()
    for id = 1,32 do
        if (player(id,"exists")) then
            parse('hudtxt2 '..id..' 48 "\169255255128[..]-\169255255255 LEVEL : \169255255000'..level[id]..' " 13 190')
            parse('hudtxt2 '..id..' 49 "\169255255128[..]-\169255255255 EXP : \169255255000'..exp[id]..'/30 " 13 210')
        end
    end
end

addhook("kill","save_kill")
function save_kill(id)
    exp[id] = exp[id] + 1
    if exp[id] == 30 then
        exp[id]=0
        level[id]=level[id]+1
        parse("sv_sound2 "..id.." levelup.wav")
        msg("\169000255000[LEVEL-UP]:\169255255255 "..player(id,"name").." Reached "..level[id].." level!")
    end
end

addhook("leave","save_leave") -- When you leave it saves
function save_leave(id)
    if (player(id,"usgn")>0) then
        io.output(io.open("sys/lua/saves/"..player(id,"usgn")..".txt","w+"))
        io.write(exp[id].." "..level[id])
        io.close()
    end
end

addhook("die","save_die") -- When you die it saves
function save_die(id)
    if (player(id,"usgn")>0) then
        io.output(io.open("sys/lua/saves/"..player(id,"usgn")..".txt","w+"))
        io.write(exp[id].." "..level[id])
        io.close()
    elseif (player(id,"steam")>"0") then
        io.output(io.open("sys/lua/saves/steam/"..player(id,"usgn")..".txt","w+"))
        io.write(exp[id].." "..level[id])
        io.close()
    end    
end  

addhook("join","save_join") -- When join load
function save_join(id)
    if (player(id,"usgn")>0) then
        local filename = "sys/lua/saves/%s.txt"
        local file = io.open(filename:format(player(id,"usgn"), "r"))
        local line
        if not file then
            line = {0, 1}
            msg2(id,"\169255255000[SERVER]\169255255255: \169255000000Failed to save!")
        else
            line = file:read("*a"):split()
        end
    elseif (player(id,"steam")>"0") then
        local filename = "sys/lua/saves/steam/%s.txt"
        local file = io.open(filename:format(player(id,"steam"), "r"))
        local line
        if not file then
            line = {0, 1}
            msg2(id,"\169255255000[SERVER]\169255255255: \169255000000Failed to save!")
        else
            line = file:read("*a"):split()       
        end
        exp[id] = tonumber(line[1]) or 0 -- If line[1] is not a number, level[id] becomes 1
        level[id] = tonumber(line[2]) or 1 -- Same as above reasoning (prevents errors)
    else
        msg2(id,"\169255255000[SERVER]: \169255000000Please make sure that you are logged in USGN / Steam!")
        level[id]=1
    end
end