CODE EXAMPLE FOR JAVASCRIPT

phaser spread

 preload ()
    {
        this.load.spritesheet('diamonds', 'assets/sprites/diamonds32x24x5.png', { frameWidth: 32, frameHeight: 24 });
    }

    create ()
    {
        const group = this.add.group({ key: 'diamonds', frame: 3, frameQuantity: 50, setXY: { x: 32, y: 32, stepX: 14 }});

        //  Spread out the children between the 2 given values, using the string-based property
        Phaser.Actions.Spread(group.getChildren(), 'alpha', 0, 1);
    }