import core from '../core';

/**
 * Holds all information related to an Interaction event
 *
 * @class
 * @memberof PIXI.interaction
 */
class InteractionData
{
    constructor()
    {
        /**
         * This point stores the global coords of where the touch/mouse event happened
         *
         * @member {PIXI.Point}
         */
        this.global = new core.Point();

        /**
         * The target Sprite that was interacted with
         *
         * @member {PIXI.Sprite}
         */
        this.target = null;

        /**
         * When passed to an event handler, this will be the original DOM Event that was captured
         *
         * @member {Event}
         */
        this.originalEvent = null;
    }

    /**
     * This will return the local coordinates of the specified displayObject for this InteractionData
     *
     * @param displayObject {PIXI.DisplayObject} The DisplayObject that you would like the local coords off
     * @param [point] {PIXI.Point} A Point object in which to store the value, optional (otherwise will create a new point)
     * @param [globalPos] {PIXI.Point} A Point object containing your custom global coords, optional (otherwise will use the current global coords)
     * @return {PIXI.Point} A point containing the coordinates of the InteractionData position relative to the DisplayObject
     */
    getLocalPosition(displayObject, point, globalPos)
    {
        return displayObject.worldTransform.applyInverse(globalPos || this.global, point);
    }
}

export default InteractionData;