Module:Value color/sandbox
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Module used by Template:Value color.
local getArgs = require('Module:Arguments').getArgs
local p = {}
local function rgb(color)
local _, _, R, G, B = color:find('(%w%w)(%w%w)(%w%w)')
return tonumber(R, 16), tonumber(G, 16), tonumber(B, 16)
end
function p.main(frame)
local args = getArgs(frame)
local value = tonumber(args[1])
local minValue = tonumber(args[2])
local maxValue = tonumber(args[3])
if not (value and minValue and maxValue) then
return require('Module:Error').error{'Parameters 1, 2, and 3 are required and must be numbers.'}
end
local minR, minG, minB = rgb(args[4] or 'FFFFFF')
local maxR, maxG, maxB = rgb(args[5] or '000000')
local percent = math.max(0, math.min(1, (value - minValue) / (maxValue - minValue)))
local red = minR + ((maxR - minR) * percent)
local green = minG + ((maxG - minG) * percent)
local blue = minB + ((maxB - minB) * percent)
local formatString = args['hex'] and '#%02x%02x%02x' or 'rgb(%.0f,%.0f,%.0f)'
return string.format(formatString, red, green, blue)
end
return p