local s = 0
local m = 0
local names = {" ", "Nounours", "VB", "Farfie"}
mon = peripheral.wrap("top")
local start = false
local best = {}
local on = true
local selectedName = 0

local function writeScreen(sec)
    local y = 2
    local  lSec  = 0
    local lMin = 0

    --calculate to minutes and seconds

    lMin = sec / 60
    lSec = sec % 60

    mon.clear()
    mon.setCursorPos(1,y)
    mon.write("Time lapse:")
    mon.setCursorPos("1,3")

    if sec < 10 then
       mon.write("0" .. lmin .. ":0" .. lsec)
    else
        mon.write("0" .. lmin .. ":" .. lsec)
    end

    mon.setCursorPos("1,5")
    mon.write("Best Times:")
    --write name best score 1
    mon.setCursorPos("3,6")
    mon.write(best[0][0]])
    --write time best score 1
    mon.setCursorPos("13,6")
    mon.write(best[0][1]]])

    --write name best score 2
    mon.setCursorPos("3,7")
    mon.write(Best[1][0]])
    --write time best score 2
    mon.setCursorPos("13,7")
    mon.write(best[0][1]]])

    --write name best score 3
    mon.setCursorPos("3,8")
    mon.write(Best[2][0]])
    --write time best score 3
    mon.setCursorPos("13,8")
    mon.write(best[0][1]]])

    mon.setCursorPos("2,10")
    mon.write("Player selected :" .. names[selectedName])


end

local function checkHighScore(score,player)
    if score < best[2] then
      if score < best [1] then
        if score < best [0] then
           --best score
           best[0] = score
        else
            --second best score
            best[1] = score
        end
      else
      -- 3th best score
      best[2] = score
      end
    end
end


while on == true do


    -- check if start buttom is changed
    if redstone.getInput("left") == true then
        start = true
         s = (s+1)
    else
        if start == true then
            --player has completed course
            checkHighScore(s,names[selectedName])
        end
        start = false

    end

    -- chekc if reset button is pressed
    if redstone.getInput("Right") == true then
        s = 0
        m = 0
    end

    --check if name change button is pressed
    if redstone.getInput("button") = true then
        selectedName = (selectedName + 1)
        if selectedName > 4 then
            selectedName = 0
        end

    --write screen
    writeScreen(s)

    --sleep for one second
    sleep(1)

end