Contains Rect

class Example extends Phaser.Scene
{
    create ()
    {
        const graphics = this.add.graphics({ fillStyle: { color: 0x0000aa } });

        const ellipse = new Phaser.Geom.Ellipse(400, 300, 400, 250);

        const rect = new Phaser.Geom.Rectangle(400, 300, 150, 100);

        this.input.on('pointermove', pointer =>
        {

            Phaser.Geom.Rectangle.CenterOn(rect, pointer.x, pointer.y);

            redraw();

        });

        redraw();

        function redraw ()
        {
            graphics.clear();

            graphics.fillRectShape(rect);

            if (Phaser.Geom.Ellipse.ContainsRect(ellipse, rect))
            {
                graphics.lineStyle(2, 0xaa0000);
            }
            else
            {
                graphics.lineStyle(2, 0x00aaaa);
            }

            graphics.strokeEllipseShape(ellipse, 64);
        }
    }
}

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

const game = new Phaser.Game(config);