/** * @private */Ext.define('Ext.fx.easing.Bounce', { extend: 'Ext.fx.easing.Abstract', config: { springTension: 0.3, acceleration: 30, startVelocity: 0 }, getValue: function() { var deltaTime = Ext.Date.now() - this.getStartTime(), theta = (deltaTime / this.getAcceleration()), powTime = theta * Math.pow(Math.E, -this.getSpringTension() * theta); return this.getStartValue() + (this.getStartVelocity() * powTime); }});