Decompose

class Example extends Phaser.Scene
{
    create ()
    {
        const graphics = this.add.graphics({ lineStyle: { width: 2, color: 0xaaaa00 } });

        const triangle = new Phaser.Geom.Triangle.BuildEquilateral(400, 25, 300);

        const points = Phaser.Geom.Triangle.Decompose(triangle);

        let angle = 0;

        while (angle < Math.PI * 2)
        {
            Phaser.Geom.Triangle.Offset(triangle, Math.cos(angle) * 15, Math.sin(angle) * 15);

            Phaser.Geom.Triangle.Rotate(triangle, Math.PI / 20);

            Phaser.Geom.Triangle.Decompose(triangle, points);

            angle += Math.PI / 20;
        }

        graphics.strokePoints(points);

    }
}

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

const game = new Phaser.Game(config);
                        

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