rgb to hex lua
-- assumes decimal values of r, g and b but can be easily retrofitted
function rgb_to_hex(r, g, b)
--%02x: 0 means replace " "s with "0"s, 2 is width, x means hex
return string.format("#%02x%02x%02x",
math.floor(r*255),
math.floor(g*255),
math.floor(b*255))
end
rgb_to_hex(0.01, 0.3, 0.1)
-- returns #024c19rgb 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
endCopyright © 2021 Codeinu
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