Keyboard Controls and Movement

class Example extends Phaser.Scene
{
    cursors;
    platforms;
    player;

    preload ()
    {
        this.load.setBaseURL('https://cdn.phaserfiles.com/v410');
        this.load.image('sky', 'src/games/firstgame/assets/sky.png');
        this.load.image('ground', 'src/games/firstgame/assets/platform.png');
        this.load.image('star', 'src/games/firstgame/assets/star.png');
        this.load.image('bomb', 'src/games/firstgame/assets/bomb.png');
        this.load.spritesheet('dude', 'src/games/firstgame/assets/dude.png', { frameWidth: 32, frameHeight: 48 });
    }

    create ()
    {
        this.add.image(400, 300, 'sky');

        this.platforms = this.physics.add.staticGroup();

        this.platforms.create(400, 568, 'ground').setScale(2).refreshBody();

        this.platforms.create(600, 400, 'ground');
        this.platforms.create(50, 250, 'ground');
        this.platforms.create(750, 220, 'ground');

        this.player = this.physics.add.sprite(100, 450, 'dude');

        this.player.setBounce(0.2);
        this.player.setCollideWorldBounds(true);

        this.anims.create({
            key: 'left',
            frames: this.anims.generateFrameNumbers('dude', { start: 0, end: 3 }),
            frameRate: 10,
            repeat: -1
        });

        this.anims.create({
            key: 'turn',
            frames: [ { key: 'dude', frame: 4 } ],
            frameRate: 20
        });

        this.anims.create({
            key: 'right',
            frames: this.anims.generateFrameNumbers('dude', { start: 5, end: 8 }),
            frameRate: 10,
            repeat: -1
        });

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

        this.physics.add.collider(this.player, this.platforms);
    }

    update ()
    {
        if (this.cursors.left.isDown)
        {
            this.player.setVelocityX(-160);

            this.player.anims.play('left', true);
        }
        else if (this.cursors.right.isDown)
        {
            this.player.setVelocityX(160);

            this.player.anims.play('right', true);
        }
        else
        {
            this.player.setVelocityX(0);

            this.player.anims.play('turn');
        }

        if (this.cursors.up.isDown && this.player.body.touching.down)
        {
            this.player.setVelocityY(-330);
        }
    }
}

const config = {
    scale: { mode: Phaser.Scale.FIT },
    type: Phaser.AUTO,
    width: 800,
    height: 600,
    physics: {
        default: 'arcade',
        arcade: {
            gravity: { y: 300 },
            debug: false
        }
    },
    scene: Example
};

const game = new Phaser.Game(config);