CC: TicksToSeconds Function

-- simple function so you don't have to do the conversion from ticks to seconds when using computercraft

function TicksToSeconds(s)
    s = string.lower(s)
    local endOfString = string.sub(s, -1)
    local number = string.sub(s, 1, -2)

    if (endOfString == "s") then
        return tonumber(number)
    elseif (endOfString == "t") then
        return ( tonumber(number) * 0.05 ) --one tick happens every 0.05 seconds
    else
        error("inputed string is not seconds nor ticks")
    end
end

-- examples
print(TicksToSeconds("15t")) -- 15 ticks is 0.75 seconds
print(TicksToSeconds("1s"))  -- 1 second is still 1 second
print(TicksToSeconds("1a"))  -- wrong format will give an error