Timeline Event

class Example extends Phaser.Scene
{
    preload ()
    {
        this.load.setBaseURL('https://cdn.phaserfiles.com/v385');
        this.load.atlas('timeline', 'assets/atlas/timeline.png', 'assets/atlas/timeline.json');
        this.load.image('bg', 'assets/skies/spookysky.jpg');
    }

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

        this.graphics = this.add.graphics();

        this.add.text(10, 10, 'Click to play timeline', { font: '16px Courier', fill: '#ffffff' });

        const timeline = this.add.timeline();

        //  Here we'll create 2 events, one to start the boss fight, and one to add a spider

        timeline.on('BOSS_FIGHT_START', () => {

            const boss = this.add.sprite(400, 300, 'timeline', 'pumpkin').setDepth(100).setAngle(-32);

            this.tweens.add({
                targets: boss,
                scale: 2,
                angle: 32,
                duration: 1500,
                ease: 'quad.inout',
                yoyo: true,
                repeat: -1
            });

        });

        this.spiders = [];

        timeline.on('ADD_SPIDER', () => {

            const x = Phaser.Math.Between(50, 750);
            const y = Phaser.Math.Between(200, 500);

            const spider = this.add.sprite(x, -200, 'timeline', 'spider');

            this.tweens.add({
                targets: spider,
                y,
                duration: 2000,
                ease: 'bounce.out',
                yoyo: true,
                hold: 2000,
                repeat: -1,
                repeatDelay: 1000
            });

            this.spiders.push(spider);

        });

        //  Now we sequence the events

        timeline.add([
            {
                at: 0,
                event: 'ADD_SPIDER'
            },
            {
                at: 500,
                event: 'ADD_SPIDER'
            },
            {
                at: 1000,
                event: 'ADD_SPIDER'
            },
            {
                at: 1500,
                event: 'BOSS_FIGHT_START'
            },
            {
                at: 2000,
                event: 'ADD_SPIDER'
            },
            {
                at: 2500,
                event: 'ADD_SPIDER'
            },
            {
                at: 3000,
                event: 'ADD_SPIDER'
            }
        ]);

        this.input.once('pointerdown', () => {

            timeline.play();

        });
    }

    update ()
    {
        this.graphics.clear();

        this.graphics.lineStyle(1, 0xffffff, 0.5);

        this.spiders.forEach(spider => {

            this.graphics.lineBetween(spider.x, 0, spider.x, spider.y);

        });
    }
}

const config = {
    type: Phaser.AUTO,
    width: 800,
    height: 600,
    backgroundColor: '#020286',
    parent: 'phaser-example',
    scene: Example
};

const game = new Phaser.Game(config);
                        

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