Sleep Events

class Example extends Phaser.Scene
{
    preload ()
    {
        this.load.setBaseURL('https://cdn.phaserfiles.com/v385');
        this.load.image('ball', 'assets/sprites/pangball.png');
    }

    create ()
    {
        this.matter.world.setBounds(0, 0, 800, 600, 32, true, true, false, true);

        this.time.addEvent({
            delay: 500,
            callback: function ()
            {
                const ball = this.matter.add.image(Phaser.Math.Between(100, 700), Phaser.Math.Between(-600, 0), 'ball');
                ball.setCircle();
                ball.setFriction(0.005).setBounce(1);
                ball.setSleepEvents(true, true);
            },
            callbackScope: this,
            repeat: 64
        });

        this.matter.world.on('sleepstart', (event, body) =>
        {
            event.source.gameObject.setTint(0xff0000);
        });

        this.matter.world.on('sleepend', event =>
        {
            event.source.gameObject.setTint(0xffffff);
        });
    }
}

const config = {
    type: Phaser.AUTO,
    width: 800,
    height: 600,
    backgroundColor: '#1d1d1d',
    parent: 'phaser-example',
    physics: {
        default: 'matter',
        matter: {
            enableSleeping: true
        }
    },
    scene: Example
};

const game = new Phaser.Game(config);
                        

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