cdrive.lua

rednet.open("top")
local serverId

print("Connecting to server...")
rednet.broadcast("","cdrive-findserver")
repeat
    local id,msg,pro = rednet.receive("cdrive-gotserver",3)
    if pro == "cdrive-gotserver" then
        serverId = id
        print("Success! Connected to server id "..serverId)
    elseif id == nil then
        printError("Failed to connect to server!")
        return
    end
until serverId

print("Drawing login UI...")

local function drawLoginUI()
    term.setCursorPos(2,2)
    term.setBackgroundColor(colors.white)
    term.setTextColor(colors.gray)
    term.clear()
    term.write("cDrive Login")
    term.setCursorPos(2,4)
    term.setBackgroundColor(colors.lightGray)
    term.setTextColor(colors.gray)
    term.write(" Username                   ")
    term.setCursorPos(2,6)
    term.write(" Password                   ")
    term.setCursorPos(2,8)
    term.setBackgroundColor(colors.gray)
    term.setTextColor(colors.lightGray)
    term.write(" Login ")
    term.setCursorPos(11,8)
    term.write(" Cancel ")
    term.setCursorPos(21,8)
    term.write(" Sign Up ")
end

local function drawSignupUI()
    term.setBackgroundColor(colors.white)
    term.clear()
    term.setCursorPos(2,2)
    term.setTextColor(colors.gray)
    term.write("Loading...")
    rednet.send(serverId, nil, "cdrive-requestwave")
    local id, wave, pro = rednet.receive("cdrive-gotwave",3)

    term.clear()
    term.setCursorPos(2,2)
    term.write("When you sign up, your wave will be "..wave)
    sleep(100)
end

local username = ""
local password = ""

local function loginButtons()
    while true do
        local event, b, x, y = os.pullEvent("mouse_click")
        if x >= 11 and x <= 19 and y == 8 then
            term.setBackgroundColor(colors.black)
            term.clear()
            term.setCursorPos(1,1)
            return
        elseif x >= 21 and x <= 30 and y == 8 then
            drawSignupUI()
            return
        elseif x >= 2 and x <= 29 and y == 4 then
            term.setTextColor(colors.black)
            term.setBackgroundColor(colors.lightGray)
            term.setCursorPos(3,4)
            term.write(string.rep(" ", 27))
            term.setCursorPos(3,4)
            username = read()
        elseif x >= 2 and x <= 29 and y == 6 then
            term.setTextColor(colors.black)
            term.setBackgroundColor(colors.lightGray)
            term.setCursorPos(3,6)
            term.write(string.rep(" ", 27))
            term.setCursorPos(3,6)
            password = read("\7")

        end
    end
end

drawLoginUI()
loginButtons()

rednet.close()