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<h1 class="file-heading">File: src/pixi/InteractionData.js</h1>
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<pre class="code prettyprint linenums">
/**
* @author Mat Groves http://matgroves.com/ @Doormat23
*/
/**
* Holds all information related to an Interaction event
*
* @class InteractionData
* @constructor
*/
PIXI.InteractionData = function()
{
/**
* This point stores the global coords of where the touch/mouse event happened
*
* @property global
* @type Point
*/
this.global = new PIXI.Point();
/**
* The target Sprite that was interacted with
*
* @property target
* @type Sprite
*/
this.target = null;
/**
* When passed to an event handler, this will be the original DOM Event that was captured
*
* @property originalEvent
* @type Event
*/
this.originalEvent = null;
};
/**
* This will return the local coordinates of the specified displayObject for this InteractionData
*
* @method getLocalPosition
* @param displayObject {DisplayObject} The DisplayObject that you would like the local coords off
* @param [point] {Point} A Point object in which to store the value, optional (otherwise will create a new point)
* @return {Point} A point containing the coordinates of the InteractionData position relative to the DisplayObject
*/
PIXI.InteractionData.prototype.getLocalPosition = function(displayObject, point)
{
var worldTransform = displayObject.worldTransform;
var global = this.global;
// do a cheeky transform to get the mouse coords;
var a00 = worldTransform.a, a01 = worldTransform.c, a02 = worldTransform.tx,
a10 = worldTransform.b, a11 = worldTransform.d, a12 = worldTransform.ty,
id = 1 / (a00 * a11 + a01 * -a10);
point = point || new PIXI.Point();
point.x = a11 * id * global.x + -a01 * id * global.y + (a12 * a01 - a02 * a11) * id;
point.y = a00 * id * global.y + -a10 * id * global.x + (-a12 * a00 + a02 * a10) * id;
// set the mouse coords...
return point;
};
// constructor
PIXI.InteractionData.prototype.constructor = PIXI.InteractionData;
</pre>
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