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

export class CircleGeometry3D extends BufferGeometry3D
{
    radius = 1;
    segments = 32;
    thetaStart = 0;
    thetaLength = Math.PI * 2;

    get _geometry()
    {
        if (!this.__geometry)
        {
            this.__geometry = new CircleGeometry(this.radius, this.segments, this.thetaStart, this.thetaLength);
        }

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

    constructor()
    {
        super();

        watcher.watchs(this as CircleGeometry3D, ['radius', 'segments', 'thetaStart', 'thetaLength'], this._invalidate, this);
    }

    destroy()
    {
        watcher.unwatchs(this as CircleGeometry3D, ['radius', 'segments', 'thetaStart', 'thetaLength'], this._invalidate, this);
    }
}