Container with Camera Zoom

class Example extends Phaser.Scene
{
    controls;

    preload ()
    {
        this.load.setBaseURL('https://cdn.phaserfiles.com/v410');
        this.load.image('lemming', 'assets/sprites/lemming.png');
    }

    create ()
    {
        this.cameras.main.zoom = 0.5;

        //  Our container
        const container = this.add.container(400, 300);

        //  Add some sprites - positions are relative to the Container x/y
        const sprite0 = this.add.sprite(0, 0, 'lemming');
        const sprite1 = this.add.sprite(-100, -100, 'lemming');
        const sprite2 = this.add.sprite(100, -100, 'lemming');
        const sprite3 = this.add.sprite(100, 100, 'lemming');
        const sprite4 = this.add.sprite(-100, 100, 'lemming');

        container.add(sprite0);
        container.add(sprite1);
        container.add(sprite2);
        container.add(sprite3);
        container.add(sprite4);

        //  You could also pass them in as an array, to save doing them one by one

        this.tweens.add({
            targets: container,
            angle: 360,
            duration: 6000,
            yoyo: true,
            repeat: -1
        });

        const cursors = this.input.keyboard.createCursorKeys();

        const controlConfig = {
            camera: this.cameras.main,
            left: cursors.left,
            right: cursors.right,
            up: cursors.up,
            down: cursors.down,
            zoomIn: this.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.Q),
            zoomOut: this.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.E),
            acceleration: 0.06,
            drag: 0.0005,
            maxSpeed: 1.0
        };

        this.controls = new Phaser.Cameras.Controls.SmoothedKeyControl(controlConfig);

        const cam = this.cameras.main;

        const gui = new dat.GUI();

        const help = {
            line1: 'Cursors to move',
            line2: 'Q & E to zoom'
        };

        const f1 = gui.addFolder('Camera');
        f1.add(cam, 'x').listen();
        f1.add(cam, 'y').listen();
        f1.add(cam, 'scrollX').listen();
        f1.add(cam, 'scrollY').listen();
        f1.add(cam, 'rotation').min(0).step(0.01).listen();
        f1.add(cam, 'zoom', 0.1, 2).step(0.1).listen();
        f1.add(help, 'line1');
        f1.add(help, 'line2');
        f1.open();
    }

    update (time, delta)
    {
        this.controls.update(delta);
    }
}

const config = {
    scale: { mode: Phaser.Scale.FIT },
    type: Phaser.AUTO,
    width: 800,
    height: 600,
    backgroundColor: '#010101',
    parent: 'game-container',
    scene: Example
};

const game = new Phaser.Game(config);