import { watcher } from '@feng3d/watcher';
import { TorusKnotGeometry } from '../../thirdparty/three/imports';
import { BufferGeometry3D } from '../core/BufferGeometry3D';

export class TorusKnotGeometry3D extends BufferGeometry3D
{
    radius = 1;
    tube = 0.4;
    tubularSegments = 64;
    radialSegments = 8;
    p = 2;
    q = 3;

    get _geometry()
    {
        if (!this.__geometry)
        {
            this.__geometry = new TorusKnotGeometry(this.radius, this.tube, this.tubularSegments, this.radialSegments, this.p, this.q);
        }

        return this.__geometry;
    }
    declare protected __geometry: TorusKnotGeometry;

    constructor()
    {
        super();
        watcher.watchs(this as TorusKnotGeometry3D, ['radius', 'tube', 'radialSegments', 'tubularSegments', 'p', 'q'], this._invalidate, this);
    }

    destroy()
    {
        watcher.unwatchs(this as TorusKnotGeometry3D, ['radius', 'tube', 'radialSegments', 'tubularSegments', 'p', 'q'], this._invalidate, this);
    }
}