Ease Equations

var config = {
    type: Phaser.WEBGL,
    width: 800,
    height: 600,
    backgroundColor: '#080808',
    parent: 'phaser-example',
    scene: {
        preload: preload,
        create: create
    }
};

var game = new Phaser.Game(config);

function preload ()
{
        this.load.setBaseURL('https://cdn.phaserfiles.com/v355');
    this.load.image('bar', 'assets/sprites/bluebar.png');
}

function create ()
{
    //  There are 32 built-in easing equations including Elastic which is shown in the Elasticity example

    var eases = [
        'Linear',
        'Quad.easeIn',
        'Cubic.easeIn',
        'Quart.easeIn',
        'Quint.easeIn',
        'Sine.easeIn',
        'Expo.easeIn',
        'Circ.easeIn',
        'Back.easeIn',
        'Bounce.easeIn',
        'Quad.easeOut',
        'Cubic.easeOut',
        'Quart.easeOut',
        'Quint.easeOut',
        'Sine.easeOut',
        'Expo.easeOut',
        'Circ.easeOut',
        'Back.easeOut',
        'Bounce.easeOut',
        'Quad.easeInOut',
        'Cubic.easeInOut',
        'Quart.easeInOut',
        'Quint.easeInOut',
        'Sine.easeInOut',
        'Expo.easeInOut',
        'Circ.easeInOut',
        'Back.easeInOut',
        'Bounce.easeInOut'
    ];

    const stepY = 19

    // labels
    for (const [index, easeFnName] of eases.entries()) {
        this.add.text(140, 23 + (index * stepY), easeFnName).setOrigin(1, 0).setFontSize(14)
    }

    var markers = this.add.group({ key: 'bar', repeat: 27, setXY: { x: 196, y: 32, stepY }, setAlpha: { value: 0.3 } });

    var images = this.add.group({ key: 'bar', repeat: 27, setXY: { x: 196, y: 32, stepY }});


    var _this = this;

    images.children.iterate(function (child) {

        _this.tweens.add({
            targets: child,
            x: 700,
            ease: eases.shift(),
            duration: 1500,
            delay: 1000,
            repeat: -1,
            repeatDelay: 1000,
            hold: 1000
        });

    });

}
                        

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