Iron Golem Counter

-- Made by Rnen10
-- If problems/questions feel free to contact me
-- https://twitter.com/Rnen10
-- rnen. (Evan#7181)  on discord

-- Iron golem murder counter program.
-- Auto-Update program for this and display can be found at https://pastebin.com/WsVbRvmL (download as startup)
-- WriteToMon "display" = https://pastebin.com/FxkS233S

term.clear()
term.setCursorPos(1,1)
print("Started counting murder...")

local count = 0

local function WriteToMon(Int)
    if fs.exists("display") then
        shell.run("display "..Int)
    end
end

local function ReadFile()
    if fs.exists("countFile") then
        print("Existing count found! Resuming...")
        local file = fs.open("countFile","r")
        sleep(0.1)
        local data = file.readAll()
        sleep(0.1)
        file.close()
        sleep(0.1)
        count = textutils.unserialize(data)
        print("I've murdered "..count.." innocent golems")
        WriteToMon(count)
    else
        local file = fs.open("countFile","w")
        sleep(0.1)
        file.write(textutils.serialize(count))
        sleep(0.1)
        file.close()
    end
end

local function SaveFile()
    local file = fs.open("countFile","w")
    sleep(0.1)
    file.write(textutils.serialize(count))
    sleep(0.1)
    file.close()
end

--Main Loop

ReadFile()

while true do
    os.pullEvent("redstone")
    if redstone.getInput("right") then
        count = count + 1
    end
    SaveFile()
    print("I've murdered "..count.." innocent golems")
    WriteToMon(count)
    sleep(1)
end