Function buildNode

packages/editor-app/src/components/SceneHierarchy.tsx:252–277

(entity: Entity, depth: number)

        if (!scene) return [];

        const buildNode = (entity: Entity, depth: number): EntityNode => {
            const hierarchy = entity.getComponent(HierarchyComponent);
            const childIds = hierarchy?.childIds ?? [];
            const bIsEntityFolder = isFolder(entity.tag);

            const children: EntityNode[] = [];
            for (const childId of childIds) {
                const childEntity = scene.findEntityById(childId);
                if (childEntity) {
                    children.push(buildNode(childEntity, depth + 1));
                }
            }

            // Collect virtual nodes from components
            // 从组件收集虚拟节点
            const virtualNodes = VirtualNodeRegistry.getAllVirtualNodesForEntity(entity);

            return {
                entity,
                children,
                depth,
                bIsFolder: bIsEntityFolder,
                hasChildren: children.length > 0 || virtualNodes.length > 0,
                virtualNodes: virtualNodes.length > 0 ? virtualNodes : undefined
            };
        };

        return rootEntities.map((entity) => buildNode(entity, 1));
    }, []);