(function (global, factory) {
  if (typeof define === "function" && define.amd) {
    define(["exports", "./constants.js"], factory);
  } else if (typeof exports !== "undefined") {
    factory(exports, require("./constants.js"));
  } else {
    var mod = {
      exports: {}
    };
    factory(mod.exports, global.constants);
    global.NodeFrame = mod.exports;
  }
})(typeof globalThis !== "undefined" ? globalThis : typeof self !== "undefined" ? self : this, function (_exports, _constants) {
  "use strict";

  Object.defineProperty(_exports, "__esModule", {
    value: true
  });
  _exports.default = void 0;

  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }

  var NodeFrame = /*#__PURE__*/function () {
    function NodeFrame() {
      _classCallCheck(this, NodeFrame);

      this.time = 0;
      this.deltaTime = 0;
      this.frameId = 0;
      this.startTime = null;
      this.updateMap = new WeakMap();
      this.renderer = null;
      this.material = null;
      this.camera = null;
      this.object = null;
    }

    _createClass(NodeFrame, [{
      key: "updateNode",
      value: function updateNode(node) {
        if (node.updateType === _constants.NodeUpdateType.Frame) {
          if (this.updateMap.get(node) !== this.frameId) {
            this.updateMap.set(node, this.frameId);
            node.update(this);
          }
        } else if (node.updateType === _constants.NodeUpdateType.Object) {
          node.update(this);
        }
      }
    }, {
      key: "update",
      value: function update() {
        this.frameId++;
        if (this.lastTime === undefined) this.lastTime = performance.now();
        this.deltaTime = (performance.now() - this.lastTime) / 1000;
        this.lastTime = performance.now();
        this.time += this.deltaTime;
      }
    }]);

    return NodeFrame;
  }();

  var _default = NodeFrame;
  _exports.default = _default;
});