JSFiddle - React, Tailwind, and code Playground

JavaScript

var play1_state = {

    // No more preload, since it is already done in the 'load' state

    create: function () {
        game.world.setBounds(0, 0, 2560, 480);

        game.physics.startSystem(Phaser.Physics.P2JS);


        map = game.add.tilemap('map');

        map.addTilesetImage('tiles');


        layer = map.createLayer('Tile Layer 1');

        layer.resizeWorld();

        //  Set the tiles for collision.
        //  Do this BEFORE generating the p2 bodies below.
        map.setCollisionBetween(1, 12);

        //  Convert the tilemap layer into bodies. Only tiles that collide (see above) are created.
        //  This call returns an array of body objects which you can perform addition actions on if
        //  required. There is also a parameter to control optimising the map build.
        game.physics.p2.convertTilemap(map, layer);


        game.physics.p2.setBoundsToWorld(true, true, true, true, false);

        // finally we create the player placing "hero" instance at x=32, y=416
        player = game.add.sprite(100, 400, "hero");
        game.physics.p2.enable(player);
        // this is the gravity applied to the player
        player.body.gravity.y = 12;

        player.anchor.setTo(0.5, 0.5);

        stars = game.add.sprite(2480, 400, "star");



        // the fastest way to create game controls is "createCursorKeys" method
        // which automatically assigns up, down, left and right movement to
        // arrow keys
        cursors = game.input.keyboard.createCursorKeys();

        player.checkWorldBounds = true;

        player.events.onOutOfBounds.add(playerOut, this);


        game.camera.follow(player);



        function playerOut(player) {

            //  Move the player to the start
            player.reset(100, 400);

        }
    },

    update: function () {
        // we are looking for collisions between the hero and the tiles
        game.physics.collide(player, layer);
        game.physics.overlap(player, stars,...