feat(frontend): cache 3D assets and restore loading feedback

Persist versioned models and validated network metadata in IndexedDB. Show scene download progress and recoverable errors with the existing frosted material. Connect existing skeletons to pending navigation and route boundaries while preserving the map. Previously only dynamic imports showed fallbacks, and rejected model promises prevented retries. Verified: 32 focused unit tests; 4 navigation and scene browser checks; 7 cache browser checks including invalid-metadata recovery; isolated production build and type checks.
2026-10-16 18:13:04 +08:00
parent c4a90be0d3
commit 4a522bf42a
23 changed files with 938 additions and 59 deletions
@@ -76,7 +76,7 @@ export function createCameraNavigation({camera,controls,model,networkRoot,root,s
   flight={start:performance.now(),from:camera.position.clone(),targetFrom:controls.target.clone(),to:new THREE.Vector3(...pose.position),targetTo:new THREE.Vector3(...pose.target)};
   if(matchMedia('(prefers-reduced-motion: reduce)').matches){camera.position.copy(flight.to);controls.target.copy(flight.targetTo);flight=null;controls.update();}
   emit(p.note??'已保存的相机位置');
-  }catch(e){if(token===request)emit('视角加载失败：'+e.message);}
+  }catch(e){if(token===request)emit('视角加载失败：'+e.message);throw e;}
 }
 function tick(now){if(!flight)return;const t=Math.min(1,(now-flight.start)/500),v=t*t*(3-2*t);camera.position.lerpVectors(flight.from,flight.to,v);controls.target.lerpVectors(flight.targetFrom,flight.targetTo,v);if(t===1)flight=null;}
 function save(label){label=label.trim();if(!label||label.length>24)throw Error('请输入 1–24 字的视角名称。');if(saved.length>=8)throw Error('最多保存 8 个视角，请先移除不用的视角。');const p={id:'saved-'+Date.now(),label,mode:getMode(),displayMode:getDisplayMode(),position:camera.position.toArray(),target:controls.target.toArray(),up:camera.up.toArray(),context:root.visible,roof:root.children.filter(o=>/roof|ceiling/.test(o.userData.resourceId)).every(o=>o.visible)};p.layers=Object.fromEntries(root.children.map(o=>[o.userData.resourceId,o.visible]));const next=[...saved,p];localStorage.setItem(key,JSON.stringify(next));saved=next;active=p.id;emit('视角已保存在本机浏览器');}