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Interpolate.js
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Interpolate.js
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/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2020 Photon Storm Ltd.
* @license {@link https://opensource.org/licenses/MIT|MIT License}
*/
var Linear = require('../../math/Linear');
/**
* @namespace Phaser.Display.Color.Interpolate
* @memberof Phaser.Display.Color
* @since 3.0.0
*/
/**
* Interpolates between the two given color ranges over the length supplied.
*
* @function Phaser.Display.Color.Interpolate.RGBWithRGB
* @memberof Phaser.Display.Color.Interpolate
* @static
* @since 3.0.0
*
* @param {number} r1 - Red value.
* @param {number} g1 - Blue value.
* @param {number} b1 - Green value.
* @param {number} r2 - Red value.
* @param {number} g2 - Blue value.
* @param {number} b2 - Green value.
* @param {number} [length=100] - Distance to interpolate over.
* @param {number} [index=0] - Index to start from.
*
* @return {Phaser.Types.Display.ColorObject} An object containing the interpolated color values.
*/
var RGBWithRGB = function (r1, g1, b1, r2, g2, b2, length, index)
{
if (length === undefined) { length = 100; }
if (index === undefined) { index = 0; }
var t = index / length;
return {
r: Linear(r1, r2, t),
g: Linear(g1, g2, t),
b: Linear(b1, b2, t)
};
};
/**
* Interpolates between the two given color objects over the length supplied.
*
* @function Phaser.Display.Color.Interpolate.ColorWithColor
* @memberof Phaser.Display.Color.Interpolate
* @static
* @since 3.0.0
*
* @param {Phaser.Display.Color} color1 - The first Color object.
* @param {Phaser.Display.Color} color2 - The second Color object.
* @param {number} [length=100] - Distance to interpolate over.
* @param {number} [index=0] - Index to start from.
*
* @return {Phaser.Types.Display.ColorObject} An object containing the interpolated color values.
*/
var ColorWithColor = function (color1, color2, length, index)
{
if (length === undefined) { length = 100; }
if (index === undefined) { index = 0; }
return RGBWithRGB(color1.r, color1.g, color1.b, color2.r, color2.g, color2.b, length, index);
};
/**
* Interpolates between the Color object and color values over the length supplied.
*
* @function Phaser.Display.Color.Interpolate.ColorWithRGB
* @memberof Phaser.Display.Color.Interpolate
* @static
* @since 3.0.0
*
* @param {Phaser.Display.Color} color1 - The first Color object.
* @param {number} r - Red value.
* @param {number} g - Blue value.
* @param {number} b - Green value.
* @param {number} [length=100] - Distance to interpolate over.
* @param {number} [index=0] - Index to start from.
*
* @return {Phaser.Types.Display.ColorObject} An object containing the interpolated color values.
*/
var ColorWithRGB = function (color, r, g, b, length, index)
{
if (length === undefined) { length = 100; }
if (index === undefined) { index = 0; }
return RGBWithRGB(color.r, color.g, color.b, r, g, b, length, index);
};
module.exports = {
RGBWithRGB: RGBWithRGB,
ColorWithRGB: ColorWithRGB,
ColorWithColor: ColorWithColor
};