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clarified declaration of h in colour.rgb_to_hsl

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fixes #43
This commit is contained in:
Max Cahill 2021-11-23 10:40:57 +11:00
parent 5df717fe6d
commit f5eda744b9
1 changed files with 2 additions and 1 deletions
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3
colour.lua
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@ -134,8 +134,9 @@ function colour.rgb_to_hsl(r, g, b)
if max == min then return 0, 0, min end if max == min then return 0, 0, min end
local l, d = max + min, max - min local l, d = max + min, max - min
local s, h = d / (l > 1 and (2 - l) or l) local s = d / (l > 1 and (2 - l) or l)
l = l / 2 l = l / 2
local h = nil --depends on below
if max == r then if max == r then
h = (g - b) / d h = (g - b) / d
if g < b then h = h + 6 end if g < b then h = h + 6 end