Rgb to hex lua

This article is tagged with: Rgb to hex lua and lua

rgb to hex lua

-- passing a table like {255, 100, 20}
function application:rgbToHex(rgb)
local hexadecimal = '0X'
for key, value in pairs(rgb) do
local hex = ''
while(value > 0)do
local index = math.fmod(value, 16) + 1
value = math.floor(value / 16)
hex = string.sub('0123456789ABCDEF', index, index) .. hex
end
if(string.len(hex) == 0)then
hex = '00'
elseif(string.len(hex) == 1)then
hex = '0' .. hex
end
hexadecimal = hexadecimal .. hex
end
return hexadecimal
end

This article is tagged with: Rgb to hex lua and lua