/**
 * @class Ext.fx.target.CompositeSprite
 *
 * This class represents a animation target for a {@link Ext.draw.sprite.Composite}. It allows
 * each {@link Ext.draw.sprite.Sprite} in the group to be animated as a whole. In general this class
 * will not be created directly, the {@link Ext.draw.sprite.Composite} will be passed
 * to the animation and and the appropriate target will be created.
 */
Ext.define('Ext.fx.target.CompositeSprite', {
    extend: 'Ext.fx.target.Sprite',

    getAttr: function(attr, val) {
        var out = [],
            sprites = [].concat(this.target.items),
            length = sprites.length,
            i, sprite;

        for (i = 0; i < length; i++) {
            sprite = sprites[i];
            out.push([sprite, val !== undefined ? val : this.getFromPrim(sprite, attr)]);
        }

        return out;
    }
});