@polygonjs/polygonjs/dist/src/engine/poly/PolyOnSceneUpdatedHooksController.js

node-based WebGL 3D engine https://polygonjs.com

"use strict";
export class PolyOnSceneUpdatedHooksController {
  constructor() {
    this._map = /* @__PURE__ */ new Map();
  }
  registerHook(node, hook) {
    this._map.set(node, hook);
    this._updateCache();
  }
  unregisterHook(node) {
    this._map.delete(node);
    this._updateCache();
  }
  runHooks() {
    const hooks = this._hooks;
    if (!hooks) {
      return;
    }
    for (let hook of hooks) {
      hook();
    }
  }
  hookedNodes() {
    return Array.from(this._map.keys());
  }
  _updateCache() {
    if (this._map.size == 0) {
      this._hooks = void 0;
    } else {
      this._hooks = this._hooks || [];
      this._hooks.length = 0;
      const hooks = this._hooks;
      this._map.forEach((hook) => hooks.push(hook));
    }
  }
}