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The HSVToRGB function can now take an optional out argument, which is either a HSVColorObject or a Color object, and the results will be set into that object instead of creating a new one.

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This commit is contained in:
Richard Davey 2018-09-10 11:22:04 +01:00
parent 664d5efc7b
commit fccd58b097
1 changed files with 44 additions and 27 deletions
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71
src/display/color/HSVToRGB.js
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@ -15,13 +15,14 @@ var GetColor = require('./GetColor');
* @function Phaser.Display.Color.HSVToRGB
* @since 3.0.0
*
* @param {number} h - The hue, in the range 0 - 1.
* @param {number} s - The saturation, in the range 0 - 1.
* @param {number} v - The value, in the range 0 - 1.
* @param {number} h - The hue, in the range 0 - 1. This is the base color.
* @param {number} s - The saturation, in the range 0 - 1. This controls how much of the hue will be in the final color, where 1 is fully saturated and 0 will give you white.
* @param {number} v - The value, in the range 0 - 1. This controls how dark the color is. Where 1 is as bright as possible and 0 is black.
* @param {(ColorObject|Phaser.Display.Color)} [out] - A Color object to store the results in. If not given a new ColorObject will be created.
*
* @return {ColorObject} An object with the red, green and blue values set in the r, g and b properties.
* @return {(ColorObject|Phaser.Display.Color)} An object with the red, green and blue values set in the r, g and b properties.
*/
var HSVToRGB = function (h, s, v)
var HSVToRGB = function (h, s, v, out)
{
if (s === undefined) { s = 1; }
if (v === undefined) { v = 1; }
@ -35,44 +36,60 @@ var HSVToRGB = function (h, s, v)
v = Math.floor(v *= 255);
var output = { r: v, g: v, b: v, color: 0 };
var r = v;
var g = v;
var b = v;
var r = i % 6;
var c = i % 6;
if (r === 0)
if (c === 0)
{
output.g = t;
output.b = p;
g = t;
b = p;
}
else if (r === 1)
else if (c === 1)
{
output.r = q;
output.b = p;
r = q;
b = p;
}
else if (r === 2)
else if (c === 2)
{
output.r = p;
output.b = t;
r = p;
b = t;
}
else if (r === 3)
else if (c === 3)
{
output.r = p;
output.g = q;
r = p;
g = q;
}
else if (r === 4)
else if (c === 4)
{
output.r = t;
output.g = p;
r = t;
g = p;
}
else if (r === 5)
else if (c === 5)
{
output.g = p;
output.b = q;
g = p;
b = q;
}
output.color = GetColor(output.r, output.g, output.b);
if (!out)
{
return { r: r, g: g, b: b, color: GetColor(r, g, b) };
}
else if (out.setTo)
{
return out.setTo(r, g, b, out.alpha, false);
}
else
{
out.r = r;
out.g = g;
out.b = b;
out.color = GetColor(r, g, b);
return output;
return out;
}
};
module.exports = HSVToRGB;