phaser/src/math/interpolation/SmoothStepInterpolation.js
2019-05-10 16:15:04 +01:00

27 lines
897 B
JavaScript

/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2019 Photon Storm Ltd.
* @license {@link https://opensource.org/licenses/MIT|MIT License}
*/
var SmoothStep = require('../SmoothStep');
/**
* A Smooth Step interpolation method.
*
* @function Phaser.Math.Interpolation.SmoothStep
* @since 3.9.0
* @see {@link https://en.wikipedia.org/wiki/Smoothstep}
*
* @param {number} t - The percentage of interpolation, between 0 and 1.
* @param {number} min - The minimum value, also known as the 'left edge', assumed smaller than the 'right edge'.
* @param {number} max - The maximum value, also known as the 'right edge', assumed greater than the 'left edge'.
*
* @return {number} The interpolated value.
*/
var SmoothStepInterpolation = function (t, min, max)
{
return min + (max - min) * SmoothStep(t, 0, 1);
};
module.exports = SmoothStepInterpolation;