WoW:USERAPI HexToRGB: Difference between revisions
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(Damnit, I'll get this right eventually) |
m (Move page script moved page USERAPI HexToRGB to USERAPI HexToRGB without leaving a redirect) |
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{{userfunc}} | {{userfunc}} | ||
Takes a hex string (must be 6 char long!) and converts it to a RGB set (0-255) | Takes a hex string (must be 6 char long!) and converts it to a RGB set (0-255) | ||
| Line 7: | Line 5: | ||
local rhex, ghex, bhex = string.sub(hex, 1, 2), string.sub(hex, 3, 4), string.sub(hex, 5, 6) | local rhex, ghex, bhex = string.sub(hex, 1, 2), string.sub(hex, 3, 4), string.sub(hex, 5, 6) | ||
return tonumber(rhex, 16), tonumber(ghex, 16), tonumber(bhex, 16) | return tonumber(rhex, 16), tonumber(ghex, 16), tonumber(bhex, 16) | ||
end | |||
== Alternative version == | |||
Takes a hex string (must be 3 or 6 chars long!) and converts it to a RGB set (0-255). If ''hex'' is invalid, return black (0,0,0). | |||
local function HexToRGB(hex) | |||
local rhex, ghex, bhex | |||
if strlen(hex) == 6 then | |||
rhex, ghex, bhex = strmatch('([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})', hex) | |||
elseif strlen(hex) == 3 then | |||
rhex, ghex, bhex = strmatch('([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])', hex) | |||
if rhex and ghex and bhex then | |||
rhex = rhex .. rhex | |||
ghex = ghex .. ghex | |||
bhex = bhex .. bhex | |||
end | |||
end | |||
if not (rhex and ghex and bhex) then | |||
return 0, 0, 0 | |||
else | |||
return tonumber(rhex, 16), tonumber(ghex, 16), tonumber(bhex, 16) | |||
end | |||
end | end | ||
Latest revision as of 04:49, 15 August 2023
This page documents a <i>user-defined function</i> that you can copy and paste into your addon. Replace PREFIX with your addon or lib prefix to avoid conflicts between different versions of these functions.
Takes a hex string (must be 6 char long!) and converts it to a RGB set (0-255)
local function HexToRGB(hex) local rhex, ghex, bhex = string.sub(hex, 1, 2), string.sub(hex, 3, 4), string.sub(hex, 5, 6) return tonumber(rhex, 16), tonumber(ghex, 16), tonumber(bhex, 16) end
Alternative version[edit]
Takes a hex string (must be 3 or 6 chars long!) and converts it to a RGB set (0-255). If hex is invalid, return black (0,0,0).
local function HexToRGB(hex)
local rhex, ghex, bhex
if strlen(hex) == 6 then
rhex, ghex, bhex = strmatch('([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})', hex)
elseif strlen(hex) == 3 then
rhex, ghex, bhex = strmatch('([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])', hex)
if rhex and ghex and bhex then
rhex = rhex .. rhex
ghex = ghex .. ghex
bhex = bhex .. bhex
end
end
if not (rhex and ghex and bhex) then
return 0, 0, 0
else
return tonumber(rhex, 16), tonumber(ghex, 16), tonumber(bhex, 16)
end
end