Found a solution to the routing issue

rootpath.js

@@ -0,0 +1,11 @@
+let folder = __dirname;
+
+const getRootPath = () => {
+  return folder;
+};
+
+const setRootPath = (newFolder) => {
+  folder = newFolder;
+};
+
+module.exports = { getRootPath, setRootPath };

src/assets/ambiences.js

@@ -1,5 +1,5 @@
 const { compose, clone, filter, propEq, reduce, uniq } = require("ramda");
-const { getAssetsFolder } = require("../constants");
+const { getRootPath } = require("../../rootpath");
 
 const ambiences = {
   none: {
@@ -28,13 +28,13 @@ const exportAmbiences = (outputDir) => {
     reduce((files, ambience) => {
       const filename = `${outputDir}/sfx/ambiance/${ambience.name}.amb`;
 
-      files[filename] = `${getAssetsFolder()}/sfx/ambiance/${
+      files[filename] = `${getRootPath()}/assets/sfx/ambiance/${
         ambience.name
       }.amb`;
 
       const tracks = ambience.tracks || [];
       tracks.forEach((track) => {
-        files[`${outputDir}/${track}`] = `${getAssetsFolder()}/${track}`;
+        files[`${outputDir}/${track}`] = `${getRootPath()}/assets/${track}`;
       });
 
       return files;

src/assets/items.js

@@ -20,11 +20,11 @@ const {
   isEmpty,
   reject,
   pluck,
-  isNil,
   uniq,
 } = require("ramda");
 const { padCharsStart, isFunction, isObject } = require("ramda-adjunct");
-const { PLAYER_HEIGHT_ADJUSTMENT, getAssetsFolder } = require("../constants");
+const { getRootPath } = require("../../rootpath");
+const { PLAYER_HEIGHT_ADJUSTMENT } = require("../constants");
 
 const items = {
   marker: {
@@ -316,11 +316,11 @@ const exportDependencies = (outputDir) => {
         const { dir: dir2, name: name2, ext: ext2 } = path.parse(source);
         files[
           `${outputDir}/${dir1}/${name1}${ext1}`
-        ] = `${getAssetsFolder()}/${dir2}/${name2}${ext2}`;
+        ] = `${getRootPath()}/assets/${dir2}/${name2}${ext2}`;
       } else {
         const { dir, name, ext } = path.parse(filename);
         const target = `${outputDir}/${dir}/${name}${ext}`;
-        files[target] = `${getAssetsFolder()}/${dir}/${name}${ext}`;
+        files[target] = `${getRootPath()}/assets/${dir}/${name}${ext}`;
       }
 
       return files;

src/assets/textures.js

@@ -10,7 +10,7 @@ const {
   reduce,
   uniq,
 } = require("ramda");
-const { getAssetsFolder } = require("../constants");
+const { getRootPath } = require("../../rootpath");
 
 const textures = {
   none: null,
@@ -137,7 +137,7 @@ const exportTextures = (outputDir) => {
   return compose(
     reduce((files, texture) => {
       const filename = `${outputDir}/graph/obj3d/textures/${texture.src}`;
-      files[filename] = `${getAssetsFolder()}/graph/obj3d/textures/${
+      files[filename] = `${getRootPath()}/assets/graph/obj3d/textures/${
         texture.src
       }`;
       return files;

src/constants.js

@@ -70,14 +70,6 @@ const PLAYER_HEIGHT_ADJUSTMENT = -140;
 const ISLAND_JOINT_LENGTH = 5;
 const ISLAND_JOINT_WIDTH = 3;
 
-let assetsFolder = path.resolve("./assets");
-
-const getAssetsFolder = () => assetsFolder;
-
-const setAssetsFolder = (folder) => {
-  assetsFolder = folder;
-};
-
 module.exports = {
   POLY_NO_SHADOW,
   POLY_DOUBLESIDED,
@@ -138,7 +130,4 @@ module.exports = {
 
   ISLAND_JOINT_LENGTH,
   ISLAND_JOINT_WIDTH,
-
-  getAssetsFolder,
-  setAssetsFolder,
 };

src/electron/index.js

@@ -1,6 +1,5 @@
 const { app, BrowserWindow, dialog, ipcMain } = require("electron");
 const path = require("path");
-const { setAssetsFolder, getAssetsFolder } = require("../constants");
 
 let win;
 
@@ -22,8 +21,6 @@ const createWindow = () => {
 };
 
 app.whenReady().then(() => {
-  setAssetsFolder(path.resolve(app.getAppPath(), "../../assets"));
-
   createWindow();
 
   app.on("activate", () => {

src/electron/src/app.jsx

@@ -1,7 +1,11 @@
+import path from "path";
 import React from "react";
 import ReactDOM from "react-dom";
+import { setRootPath } from "../../../rootpath.js";
 import App from "./components/App.jsx";
 
+setRootPath(path.resolve(__dirname, "../../../"));
+
 window.addEventListener("DOMContentLoaded", () => {
   ReactDOM.render(<App />, document.getElementById("app"));
 });