phaser
Version:
A fast, free and fun HTML5 Game Framework for Desktop and Mobile web browsers from the team at Phaser Studio Inc.
41 lines (38 loc) • 1.04 kB
JavaScript
/**
* @author Richard Davey <rich@phaser.io>
* @copyright 2013-2026 Phaser Studio Inc.
* @license {@link https://opensource.org/licenses/MIT|MIT License}
*/
/**
* Applies a bounce ease-out effect to the given value. The motion starts fast
* and decelerates toward the end with a bouncing effect, simulating a ball
* landing and bouncing to a stop. The bounce is achieved through four piecewise
* quadratic segments that produce three diminishing bounces before settling.
*
* @function Phaser.Math.Easing.Bounce.Out
* @since 3.0.0
*
* @param {number} v - The value to be eased.
*
* @return {number} The eased value.
*/
var Out = function (v)
{
if (v < 1 / 2.75)
{
return 7.5625 * v * v;
}
else if (v < 2 / 2.75)
{
return 7.5625 * (v -= 1.5 / 2.75) * v + 0.75;
}
else if (v < 2.5 / 2.75)
{
return 7.5625 * (v -= 2.25 / 2.75) * v + 0.9375;
}
else
{
return 7.5625 * (v -= 2.625 / 2.75) * v + 0.984375;
}
};
module.exports = Out;