the-world-engine/dist/esm/engine/render/TransformMatrixProcessor.js

three.js based, unity like game engine for browser

export class TransformMatrixProcessor {
    cr;
    _r;
    dr;
    constructor() {
        this.cr = [];
        this._r = new Set;
        this.dr = new Set;
    }
    pr() {
        const e = this._r;
        this._r = this.dr;
        this.dr = e;
    }
    enqueueTransformToUpdate(e) {
        if (e.isRegisteredToProcessor) return;
        e.isRegisteredToProcessor = true;
        this.cr.push(e);
    }
    enqueueRenderObject(e) {
        this.dr.add(e);
    }
    dequeueRenderObject(e) {
        this.dr.delete(e);
    }
    flush() {
        this._r.clear();
    }
    update() {
        const e = this.cr;
        for (let t = 0; t < e.length; ++t) {
            const r = e[t];
            r.tryUpdateWorldMatrixRecursivelyFromThisToChildren();
            r.isRegisteredToProcessor = false;
        }
        this.cr.length = 0;
        this.pr();
        return this._r;
    }
}