phaser/v3/src/math/RotateAroundDistance.js
2017-10-06 04:52:41 +01:00

25 lines
726 B
JavaScript

/**
* [description]
*
* @function Phaser.Math.RotateAroundDistance
* @since 3.0.0
*
* @param {Phaser.Geom.Point|object} point - The Point to be rotated.
* @param {number} x - The horizontal coordinate to rotate around.
* @param {number} y - The vertical coordinate to rotate around.
* @param {number} angle - The angle of rotation in radians.
* @param {number} distance - [description]
*
* @return {Phaser.Geom.Point} [description]
*/
var RotateAroundDistance = function (point, x, y, angle, distance)
{
var t = angle + Math.atan2(point.y - y, point.x - x);
point.x = x + (distance * Math.cos(t));
point.y = y + (distance * Math.sin(t));
return point;
};
module.exports = RotateAroundDistance;