getDependency method

dynamic getDependency(dynamic type, dynamic index)

Requests the specified dependency asynchronously, with caching. @param {string} type @param {number} index @return {Promise<Object3D|Material|THREE.Texture|AnimationClip|ArrayBuffer|Object>}

Implementation

getDependency(type, index) async {
  var cacheKey = '$type:$index';
  var dependency = cache.get(cacheKey);

  // print(" GLTFParse.getDependency type: ${type} index: ${index} ");

  if (dependency == null) {
    switch (type) {
      case 'scene':
        dependency = await loadScene(index);
        break;

      case 'node':
        dependency = await loadNode(index);
        break;

      case 'mesh':
        dependency = await _invokeOne((ext) async {
          return ext.loadMesh != null ? await ext.loadMesh(index) : null;
        });
        break;

      case 'accessor':
        dependency = await loadAccessor(index);
        break;

      case 'bufferView':
        dependency = await _invokeOne((ext) async {
          return ext.loadBufferView != null ? await ext.loadBufferView(index) : null;
        });

        break;

      case 'buffer':
        dependency = await loadBuffer(index);
        break;

      case 'material':
        dependency = await _invokeOne((ext) async {
          return ext.loadMaterial != null ? await ext.loadMaterial(index) : null;
        });
        break;

      case 'texture':
        dependency = await _invokeOne((ext) async {
          return ext.loadTexture != null ? await ext.loadTexture(index) : null;
        });
        break;

      case 'skin':
        dependency = await loadSkin(index);
        break;

      case 'animation':
        dependency = await loadAnimation(index);
        break;

      case 'camera':
        dependency = await loadCamera(index);
        break;

      default:
        throw ('GLTFParser getDependency Unknown type: $type');
    }

    cache.add(cacheKey, dependency);
  }

  return dependency;
}