View source for ReMap

{{Useful_Function}}
Re-maps a number from one range to another.

==Syntax==
<syntaxhighlight lang="lua">int/float reMap(float value, float low1, float high1, float low2, float high2)</syntaxhighlight>

===Required Arguments===
* '''value''': The incoming value to be converted
* '''low1''': Lower bound of the value's current range
* '''high1''': Upper bound of the value's current range
* '''low2''': Lower bound of the value's target range
* '''high2''': Upper bound of the value's target range

===Returns===
Returns the re-mapped number.

==Code==
<syntaxhighlight lang="lua">
function reMap(value, low1, high1, low2, high2)
    return low2 + (value - low1) * (high2 - low2) / (high1 - low1)
end
</syntaxhighlight>

==Example==
<section name="Clientside Example" class="client" show="true">
<syntaxhighlight lang="lua" lang="lua">
local realAlpha = 127.5
local alpha = reMap(realAlpha, 0, 255, 0, 1)

-- And the "alpha" return 0.5 because 255/2 = 127.5 and 0 to 1 range is 0.5

-- Reverse:
local alpha = 0.5
local realAlpha = reMap(realAlpha, 0, 1, 0, 255)

-- And the "realAlpha " return 127.5 because 1/2 = 0.5 and 0 to 255 range is 127.5
</syntaxhighlight>
</section>

Author: Jayceon

{{Useful_Functions}}