phaser/src/physics/p2/InversePointProxy.js

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/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2014 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* A InversePointProxy is an internal class that allows for direct getter/setter style property access to Arrays and TypedArrays but inverses the values on set.
*
* @class Phaser.Physics.P2.InversePointProxy
* @classdesc InversePointProxy
* @constructor
* @param {Phaser.Game} game - A reference to the Phaser.Game instance.
* @param {any} destination - The object to bind to.
*/
Phaser.Physics.P2.InversePointProxy = function (game, destination) {
this.game = game;
this.destination = destination;
};
Phaser.Physics.P2.InversePointProxy.prototype.constructor = Phaser.Physics.P2.InversePointProxy;
/**
* @name Phaser.Physics.P2.InversePointProxy#x
* @property {number} x - The x property of this InversePointProxy.
*/
Object.defineProperty(Phaser.Physics.P2.InversePointProxy.prototype, "x", {
get: function () {
return this.destination[0];
},
set: function (value) {
this.destination[0] = this.game.math.px2p(-value);
}
});
/**
* @name Phaser.Physics.P2.InversePointProxy#y
* @property {number} y - The y property of this InversePointProxy.
*/
Object.defineProperty(Phaser.Physics.P2.InversePointProxy.prototype, "y", {
get: function () {
return this.destination[1];
},
set: function (value) {
this.destination[1] = this.game.math.px2p(-value);
}
});