@polygonjs/polygonjs/dist/src/engine/scene/utils/events/SceneEventsController.js

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

"use strict";
import { addToSetAtEntry } from "../../../../core/MapUtils";
import { PolyEventName } from "../../../poly/utils/PolyEventName";
export class PolySceneEvent extends Event {
  constructor(type) {
    super(type);
  }
  get type() {
    return super.type;
  }
}
export const SCENE_EVENT_CREATED_EVENT_CONTEXT = {
  event: new PolySceneEvent(PolyEventName.SCENE_CREATED)
};
export const SCENE_EVENT_READY_EVENT_CONTEXT = {
  event: new PolySceneEvent(PolyEventName.SCENE_READY)
};
export const SCENE_EVENT_PLAY_EVENT_CONTEXT = {
  event: new PolySceneEvent(PolyEventName.SCENE_PLAY)
};
export const SCENE_EVENT_PAUSE_EVENT_CONTEXT = {
  event: new PolySceneEvent(PolyEventName.SCENE_PAUSE)
};
export class SceneEventsController {
  constructor() {
    this._observersByEventType = /* @__PURE__ */ new Map();
  }
  dispatch(eventContext) {
    const event = eventContext.event;
    if (!event) {
      return;
    }
    const set = this._observersByEventType.get(event.type);
    if (!set) {
      return;
    }
    set.forEach((node) => {
      node.processEvent(eventContext);
    });
  }
  removeObserverFromAllEventTypes(eventNode) {
    this._observersByEventType.forEach((nodes, eventType) => {
      nodes.delete(eventNode);
    });
  }
  addObserver(eventNode, eventType) {
    addToSetAtEntry(this._observersByEventType, eventType, eventNode);
  }
}