Elevator Client

rednet.open("back")
local controllerID = 14
os.loadAPI("button")

local levels = {}

function setControllerID(id)
    controllerID = id
    end
function addLevel(name)
    table.insert(levels,name)
    end

local function fillTable()
    local i = 1
    rednet.send(controllerID,"getCurrentLevel","BUD_ELEVATOR")
    local num, msg = rednet.receive("BUD_ELEVATOR")
    local currentLevel = tonumber(msg)
    for k,v in pairs(levels) do
        local j = i
        button.setTable(v,
            function()
                button.flash(v)
                rednet.send(controllerID, "move`"..j, "BUD_ELEVATOR")
                end
            , 10, 40, i*4-2, i*4)
        if i == currentLevel then
            button.toggleButton(v)
            end
        i = i + 1
        end
    button.screen()
    end

function heading(str)
    button.heading(str)
    end

local function getClick()
   event,side,x,y = os.pullEvent("mouse_click")
   button.checkxy(x,y)
end


function start()
    fillTable()
    while true do
        getClick()
        end
    end

--term.clear()
--heading("---- Elevator ----")
--addLevel("Lobby")
--addLevel("Basement")
--start()