add hide/reveal entity

ios/include/AssetManager.hpp

@@ -64,6 +64,8 @@ namespace polyvox {
             void setMorphTargetWeights(const char* const entityName, float *weights, int count);
             void loadTexture(EntityId entity, const char* resourcePath, int renderableIndex);
             void setAnimationFrame(EntityId entity, int animationIndex, int animationFrame);
+            bool hide(EntityId entity, const char* meshName);
+            bool reveal(EntityId entity, const char* meshName);
             
         private:
             AssetLoader* _assetLoader = nullptr;

ios/include/PolyvoxFilamentApi.h

@@ -97,6 +97,8 @@ void set_camera_rotation(void *viewer, float rads, float x, float y, float z);
 void set_camera_model_matrix(void *viewer, const float *const matrix);
 void set_camera_focal_length(void *viewer, float focalLength);
 void set_camera_focus_distance(void *viewer, float focusDistance);
+int hide_mesh(void* assetManager, EntityId asset, const char* meshName);
+int reveal_mesh(void* assetManager, EntityId asset, const char* meshName);
 void ios_dummy();
 
 #endif

ios/src/AssetManager.cpp

@@ -150,20 +150,7 @@ EntityId AssetManager::loadGlb(const char *uri, bool unlit) {
 
   _gltfResourceLoader->loadResources(asset);
 
-  // const Entity *entities = asset->getEntities();
-
-  // RenderableManager &rm = _engine->getRenderableManager();
-
-  // MaterialKey config;
-  // auto mi_new = _materialProvider->createMaterialInstance(&config, nullptr);
-  
-  // for (int i = 0; i < asset->getEntityCount(); i++) {
-  //   auto entityInstance = rm.getInstance(entities[i]);   
-  //   auto mi = rm.getMaterialInstanceAt(entityInstance, 0);
-  //   // auto m = mi->getMaterial();
-  //   // auto shading = m->getShading();
-  //   // Log("Shading %d", shading);
-  // }
+  const Entity *entities = asset->getEntities();
 
   auto lights = asset->getLightEntities();
   _scene->addEntities(lights, asset->getLightEntityCount());
@@ -185,10 +172,46 @@ EntityId AssetManager::loadGlb(const char *uri, bool unlit) {
 
   _entityIdLookup.emplace(eid, _assets.size());
   _assets.push_back(sceneAsset);
-
+  
   return eid;
 }
 
+bool AssetManager::hide(EntityId entityId, const char* meshName) {
+  
+  auto asset = getAssetByEntityId(entityId);
+  if(!asset) {
+    return false;
+  }
+  
+  auto entity = findEntityByName(asset, meshName);
+
+  if(entity.isNull()) {
+    Log("Mesh %s could not be found", meshName);
+    return false;
+  }
+  _scene->remove(entity);
+  return true;
+}
+
+bool AssetManager::reveal(EntityId entityId, const char* meshName) {
+  auto asset = getAssetByEntityId(entityId);
+  if(!asset) {
+    Log("No asset found under entity ID");
+    return false;
+  }
+  
+  auto entity = findEntityByName(asset, meshName);
+
+  RenderableManager &rm = _engine->getRenderableManager();
+
+   if(entity.isNull()) {
+    Log("Mesh %s could not be found", meshName);
+    return false;
+  }
+  _scene->addEntity(entity);
+  return true;
+}
+
 void AssetManager::destroyAll() {
   for (auto& asset : _assets) {
     _scene->removeEntities(asset.mAsset->getEntities(),

ios/src/PolyvoxFilamentApi.cpp

@@ -568,6 +568,22 @@ extern "C" {
 //    fut.wait();
   }
 
+  FLUTTER_PLUGIN_EXPORT int hide_mesh(void* assetManager, EntityId asset, const char* meshName) {
+    //std::packaged_task<void()> lambda([=]() mutable  {
+      return ((AssetManager*)assetManager)->hide(asset, meshName);
+     //});
+//    auto fut = _tp->add_task(lambda);
+//    fut.wait();
+  }
+
+  FLUTTER_PLUGIN_EXPORT int reveal_mesh(void* assetManager, EntityId asset, const char* meshName) {
+    //std::packaged_task<void()> lambda([=]() mutable  {
+      return ((AssetManager*)assetManager)->reveal(asset, meshName);
+     //});
+//    auto fut = _tp->add_task(lambda);
+//    fut.wait();
+  }
+
   FLUTTER_PLUGIN_EXPORT void ios_dummy() {
     Log("Dummy called");
   }