startup

mon = peripheral.find("monitor")
rednet.open("right")
cablePos = "back"
etage = "HALL"
dyh = 0
dyb = 6

function windowInit(win, bgColor, cursorX, cursorY, text)
    win.setBackgroundColor(bgColor)
    win.clear()
    win.setCursorPos(cursorX, cursorY)
    win.write(text)
end

function monInit()
    mon.setBackgroundColor(colors.lightGray)
    mon.clear()
    mon.setTextScale(0.5)
    mon.setCursorPos(5,1)
    mon.write(etage)
    if dyh>0 then
        up = window.create(mon, 2, 3, 13, 10)
        windowInit(up, colors.lightBlue, 6, 5, "HALL")
    end
    if dyb>0 then
        down = window.create(mon, 2, 14, 13, 10)
        windowInit(down, colors.orange, 4, 5, "ETAGE -1")
    end
end

function move(slp, dy, color)
    local i = 0
    while i<dy do
        rs.setBundledOutput(cablePos, color)
        sleep(slp)
        rs.setBundledOutput(cablePos, 0)
        sleep(slp)
        i = i+1
    end
end

function touchedWindow(win, ex, ey)
    local x, y = win.getPosition()
    return ((ex>=x) and (ex<=x+12) and (ey>=y) and (ey<=y+9))
end

function touchedButton(win)
    win.setBackgroundColor(colors.lightGray)
    win.clear()
    win.setVisible(false)
end

monInit()
while true do
    local e, p1, p2, p3 = os.pullEvent()
    if e=="monitor_touch" then
        x = p2
        y = p3
        if (up~=nil) and touchedWindow(up, x, y) then
            rednet.broadcast("elevator_left")
            touchedButton(up)
            move(0.5, dyh, colors.blue)
            rednet.broadcast("", "elevator_left")
            os.reboot()
        end
        if (down~=nil) and touchedWindow(down, x, y) then
            rednet.broadcast("elevator_left")
            touchedButton(down)
            move(0.5, dyb, colors.orange)
            rednet.broadcast("", "elevator_left")
            os.reboot()
        end
    elseif e=="rednet_message" then
        msg = p2
        if msg=="elevator_left" then
            if up~=nil then touchedButton(up) end
            if down~=nil then touchedButton(down) end
            rednet.receive("elevator_left", 10)
            os.reboot()
        end
    end
end