Phaser API Documentation

Description:

The Tween Yoyo Event.

This event is dispatched by a Tween whenever a property it is tweening yoyos.

This event will only be dispatched if the Tween has a property with yoyo set.

If the Tween has a hold value, this event is dispatched when the hold expires.

This event is dispatched for every property, and for every target, that yoyos. For example, if a Tween was updating 2 properties and had 10 targets, this event would be dispatched 20 times (twice per target). So be careful how you use it!

Listen to it from a Tween instance using Tween.on('yoyo', listener), i.e.:

var tween = this.tweens.add({
    targets: image,
    x: 500,
    ease: 'Power1',
    duration: 3000,
    yoyo: true
});
tween.on('yoyo', listener);