/**

* @author Richard Davey <rich@photonstorm.com>

* @copyright 2018 Photon Storm Ltd.

* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}

*/

var Perimeter = require('./Perimeter');

var Point = require('../point/Point');

/**

* Position is a value between 0 and 1 where 0 = the top-left of the rectangle and 0.5 = the bottom right.

*

* @function Phaser.Geom.Rectangle.GetPoint

* @since 3.0.0

*

* @generic {Phaser.Geom.Point} O - [out,$return]

*

* @param {Phaser.Geom.Rectangle} rectangle - [description]

* @param {number} position - [description]

* @param {(Phaser.Geom.Point|object)} [out] - [description]

*

* @return {Phaser.Geom.Point} [description]

*/

var GetPoint = function (rectangle, position, out)

{

if (out === undefined) { out = new Point(); }

if (position <= 0 || position >= 1)

{

out.x = rectangle.x;

out.y = rectangle.y;

return out;

}

var p = Perimeter(rectangle) * position;

if (position > 0.5)

{

p -= (rectangle.width + rectangle.height);

if (p <= rectangle.width)

{

// Face 3

out.x = rectangle.right - p;

out.y = rectangle.bottom;

}

else

{

// Face 4

out.x = rectangle.x;

out.y = rectangle.bottom - (p - rectangle.width);

}

}

else if (p <= rectangle.width)

{

// Face 1

out.x = rectangle.x + p;

out.y = rectangle.y;

}

else

{

// Face 2

out.x = rectangle.right;

out.y = rectangle.y + (p - rectangle.width);

}

return out;

};

module.exports = GetPoint;