Function saveWorld

src/world/saver.ts:21–37

(path: string, world: WorldData)

// On validation failure, returns the errors without touching the filesystem.
// On write failure (disk full, permissions), returns `{ ok: false, errors: [...] }`.
export function saveWorld(path: string, world: WorldData): SaveResult {
  // Always stamp the current schema version on save so stale copies don't
  // drift across editor sessions.
  world.schemaVersion = WORLD_SCHEMA_VERSION;

  const check = validateWorld(world);
  if (!check.ok) {
    return { ok: false, errors: check.errors };
  }

  const json = JSON.stringify(world, null, 2);
  const ok = writeFile(path, json);
  if (!ok) {
    return { ok: false, errors: ['writeFile failed for path: ' + path] };
  }
  return { ok: true, errors: [] };
}

// Write a prefab file. Same semantics as `saveWorld` but for prefabs.
export function savePrefab(path: string, prefab: PrefabData): SaveResult {