What do I need to change for use on a mobile cell phone browser to make the player automatically run to the right and jump when the screen is tapped? I've searched for ages but can't find the answer and am trying to learn

here is the code

update(time, delta) {
    moveBackgroundPlatform(this.mountainGroup, this.mountainWidth, 'mountains', 0.5);
    moveBackgroundPlatform(this.plateauGroup, this.plateauWidth, 'plateau', 1.5);
    moveBackgroundPlatform(this.groundGroup, this.groundWidth, 'ground', 4);

    if (this.health <= 0) {
        const myUrl = `${fetchScoreData.apiUrl + fetchScoreData.apiKey}/scores`;

        fetchScoreData.postScores(myUrl, { user: gameState.playerName, score: gameState.score });

        this.gameTheme.stop();
        this.scene.stop();
        this.scene.start('GameOver');
    }

    if (this.missileScore >= 1) {
        this.health += 1;
        this.missileScore -= 1;
    }

    this.player.anims.play('run', true);
    this.birdGroup.children.iterate((child) => {
        child.anims.play('fly', true);
    });

    this.missileGroup.children.iterate((child) => {
        child.x -= 5;
    });

    this.timer += delta;
    if (this.timer >= 5000) {
        this.createMissile(415, 'missile');
        this.timer = 0;
    }

    this.secondTimer += delta;
    if (this.secondTimer >= 7000) {
        this.createMissile(300, 'missile2');
        this.secondTimer = 0;
    }

    if (Phaser.Input.Keyboard.JustDown(this.cursors.up)) {

        //this.input.on('pointerdown',  this.jump, this);
        console.log(' up preess');
        if (this.player.body.touching.down || (this.jump < this.jumpTimes && (this.jump > 0))) {
            this.player.setVelocityY(-400);
            this.jumpSound.play();

            if ((this.player.body.touching.down)) {
                this.jump = 0;
            }
            this.jump += 1;
        }
    }

    if (!this.player.body.touching.down) {
        this.player.anims.play('jump', true);
    }

    if (this.cursors.down.isDown) {
        if (!this.player.body.touching.down) {
            this.player.setGravityY(1300);
        }
    }

    if (this.player.body.touching.down) {
        this.player.setGravityY(800);
    }
}
}

export default Game;