--           tochar          --
--[[
    this function converts a value
    to make it emulate a char
    (256 max characters)

    it can emulate signed and
    unsigned chars. the value
    will not go beyond 0-255
    if unsigned, and if signed
    the values will remain at -128
    to 128.

    tochar returns a signed char
    and touchar returns an unsigned
    char.

    tochar(variable)
    touchar(variable)

    see sample;

    --]]
function tochar(id)
    local res=id%256
    return flr(res)
end

function touchar(id)
    local res=((id-128)%255)-127
    return flr(res)
end

--sample
number=1428

print(touchar(number, true))