In Center

class Example extends Phaser.Scene
{
    create ()
    {
        const graphics = this.add.graphics({ lineStyle: { width: 2, color: 0x00ff00 }, fillStyle: { color: 0xffff00 } });

        //  Create a random triangle

        const x1 = Phaser.Math.Between(100, 700);
        const y1 = Phaser.Math.Between(50, 550);

        const x2 = Phaser.Math.Between(100, 700);
        const y2 = Phaser.Math.Between(50, 550);

        const x3 = Phaser.Math.Between(100, 700);
        const y3 = Phaser.Math.Between(50, 550);

        const triangle = new Phaser.Geom.Triangle(x1, y1, x2, y2, x3, y3);

        graphics.strokeTriangleShape(triangle);

        //  Get the inCenter of the triangle

        const incenter = Phaser.Geom.Triangle.InCenter(triangle);

        //  Draw lines from each point of the triangle to the center

        graphics.lineStyle(1, 0x00ff00);

        graphics.lineBetween(x1, y1, incenter.x, incenter.y);
        graphics.lineBetween(x2, y2, incenter.x, incenter.y);
        graphics.lineBetween(x3, y3, incenter.x, incenter.y);

        //  Draw the center

        graphics.fillPointShape(incenter, 4);
    }
}

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

const game = new Phaser.Game(config);
                        

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