kernel.lua

--Vars
local BigMonitor = "monitor_3"
local SmallMonitors = { "monitor_0", "monitor_2" }

local bmon = peripheral.wrap(BigMonitor)
local mons = {}
local kos = {}
local user = {}

local curuser = nil--"root"--nil
local mde = nil

user["root"] = { true, "pin123" }
user["Byloff"] = { false, "4850" }

os.setComputerLabel("C1")

for k, v in pairs(SmallMonitors) do
    mons[k] = peripheral.wrap(v)
end

function drawText(mon, txt, scale)
    mon.clear()

    local w, h = mon.getSize()
    mon.setCursorPos( math.ceil( w/2 - #txt/2) + 1, h/2 + 1 )

    mon.setTextScale(scale)
    mon.write(txt)

    --mon.setCursorPos(curx,cury+1)
end

function displayText(txt)
    drawText(bmon, txt, 5)

    for i=1, #mons do
        drawText(mons[i], txt, 1)
    end
end

function kos.print(txt, a)
    write(os.getComputerLabel() .. txt)
    if a == nil then
        print("")
    end
end

function kos.stdline(a)
    kos.print("@", true)
    if user[curuser][1] == true then
        term.setTextColor(colors.red)
    else
        term.setTextColor(colors.lime)
    end
    write(curuser)
    term.setTextColor(colors.white)
    write(":~$ ")

    if a == nil then
        print("")
    end
end

term.clear()
--print("KSpace-OS V1")
--term.setCursorPos(1,0)
--print ("Enter Password")
--local input = read("*")

displayText("10")

function kos.next()
    kos.stdline(true)
    term.setCursorBlink(true)
    local cmd = read()
    term.setCursorBlink(false)

    kos.next()
end

function kos.passentry()
    if type(curuser) == "string" then
        term.clear()

        boot()
    else
        --print(type(mde))
        if type(mde) == "nil" then
            kos.print("@username: ", true)

            local name = read()
            term.setCursorBlink(true)
            if type(user[name]) == "table" then
                mde = name

                term.setCursorBlink(false)
                kos.passentry()
            else
                term.setCursorBlink(false)
                kos.print(": incorrect username!")
                kos.passentry()
            end
        else
            kos.print("@password: ", true)

            term.setCursorBlink(true)
            local password = read("*")
            local usr = user[mde]
            --print(mde)
            if password == usr[2] then
                term.setCursorBlink(false)
                curuser = mde

                kos.passentry()
                --term.clear()
                --boot()
            else
                term.setCursorBlink(false)
                kos.print(": incorrect password!")

                kos.passentry()
            end
        end
    end
end

function boot()
    term.setCursorPos(1, 1)
    term.setTextColor(colors.yellow)
    print("KronosOS V1")
    print("Dist. SpaceX-OS")
    print("(C) Kronos Tech Inc.")

    term.setTextColor(colors.white)
    term.setCursorBlink(false)

    print("")
    if type(curuser) == "string" then
        --print("hi")
        kos.next()
    else
        kos.passentry()
    end
end

boot()