Place On Part Of A Circle

class Example extends Phaser.Scene
{
    constructor ()
    {
        super();
    }

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

    create ()
    {
        this.group1 = this.add.group({ key: 'ball', frameQuantity: 16 });
        this.group2 = this.add.group({ key: 'ball', frameQuantity: 16 });
        this.group3 = this.add.group({ key: 'ball', frameQuantity: 16 });
        this.group4 = this.add.group({ key: 'ball', frameQuantity: 16 });

        Phaser.Actions.PlaceOnCircle(this.group1.getChildren(), { x: 400, y: 300, radius: 200 });
        Phaser.Actions.PlaceOnCircle(this.group2.getChildren(), { x: 400, y: 300, radius: 160 });
        Phaser.Actions.PlaceOnCircle(this.group3.getChildren(), { x: 400, y: 300, radius: 120 });
        Phaser.Actions.PlaceOnCircle(this.group4.getChildren(), { x: 400, y: 300, radius: 80 });
    }

    update ()
    {
        Phaser.Actions.RotateAroundDistance(this.group1.getChildren(), { x: 400, y: 300 }, 0.02, 200);
        Phaser.Actions.RotateAroundDistance(this.group2.getChildren(), { x: 400, y: 300 }, 0.02, 160);
        Phaser.Actions.RotateAroundDistance(this.group3.getChildren(), { x: 400, y: 300 }, 0.02, 120);
        Phaser.Actions.RotateAroundDistance(this.group4.getChildren(), { x: 400, y: 300 }, 0.02, 80);
    }
}

const config = {
    type: Phaser.AUTO,
    width: 800,
    height: 600,
    backgroundColor: '#2d2d2d',
    parent: 'phaser-example',
    scene: [ Example ]
};

const game = new Phaser.Game(config);
                        

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