“Phaser Place em parte do círculo” Respostas de código

Phaser Place em parte do círculo

 preload ()
    {
        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);
    }