phaser/src/math/GetSpeed.js
2019-12-04 12:34:09 -08:00

27 lines
667 B
JavaScript

/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2019 Photon Storm Ltd.
* @license {@link https://opensource.org/licenses/MIT|MIT License}
*/
/**
* Calculate a per-ms speed from a distance and time (given in seconds).
*
* @function Phaser.Math.GetSpeed
* @since 3.0.0
*
* @param {number} distance - The distance.
* @param {integer} time - The time, in seconds.
*
* @return {number} The speed, in distance per ms.
*
* @example
* // 400px over 1 second is 0.4 px/ms
* Phaser.Math.GetSpeed(400, 1) // -> 0.4
*/
var GetSpeed = function (distance, time)
{
return (distance / time) / 1000;
};
module.exports = GetSpeed;