auto-git:

[add] src/spline-corridor/bundled-spline-corridor-model-loader.ts

src/spline-corridor/bundled-spline-corridor-model-loader.ts

@@ -0,0 +1,35 @@
+import { Group } from "three";
+
+import { createConfiguredGltfLoader } from "../assets/gltf-model-import";
+
+const bundledSplineCorridorTemplatePromises = new Map<string, Promise<Group>>();
+
+function getErrorDetail(error: unknown): string {
+  return error instanceof Error && error.message.trim().length > 0
+    ? error.message.trim()
+    : "Unknown error.";
+}
+
+export function loadBundledSplineCorridorModelTemplate(
+  bundledPath: string
+): Promise<Group> {
+  const cachedTemplatePromise =
+    bundledSplineCorridorTemplatePromises.get(bundledPath);
+
+  if (cachedTemplatePromise !== undefined) {
+    return cachedTemplatePromise;
+  }
+
+  const templatePromise = createConfiguredGltfLoader()
+    .loadAsync(bundledPath)
+    .then((gltf) => gltf.scene)
+    .catch((error: unknown) => {
+      bundledSplineCorridorTemplatePromises.delete(bundledPath);
+      throw new Error(
+        `Bundled spline corridor model failed to load from ${bundledPath}: ${getErrorDetail(error)}`
+      );
+    });
+
+  bundledSplineCorridorTemplatePromises.set(bundledPath, templatePromise);
+  return templatePromise;
+}