vine_age_measure

--index--
local target_block  = "back"
local testing_method = 4  -- getBlockStates
local text_scale = 0.5
--index end--

local age_list = {}
for i = 0, 24 do
    age_list[i] = 0
end

local monitor = peripheral.find("monitor")
monitor.clear()
monitor.setTextScale(text_scale)

local function printAgeList()
    monitor.clear()
    monitor.setCursorPos(1, 1)
    monitor.setTextColor(colors.white)
    monitor.write("Vine Age Counter")
    local y = 2
    for i = 0, 24 do
        monitor.setCursorPos(1, y)
        monitor.write(string.format("%2d : %d", i, age_list[i]))
        y = y + 1
    end
end

local method_table = peripheral.getMethods(target_block)

if method_table ~= nil then
    while true do
        if redstone.getInput("front") then
            local test_result = peripheral.call(target_block, method_table[testing_method])

            if type(test_result) == "table" and test_result["age"] then
                local age = test_result["age"]
                if age >= 0 and age <= 24 then
                    age_list[age] = age_list[age] + 1
                end
            end

            printAgeList()

            repeat sleep(0.1) until not redstone.getInput("front")
        end
        sleep(0.1)
    end
end