add FilamentAsset methods

thermion_dart/native/include/c_api/TFilamentAsset.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <utils/Entity.h>
+
+#include "APIExport.h"
+#include "APIBoundaryTypes.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+    EMSCRIPTEN_KEEPALIVE uint32_t FilamentAsset_getEntityCount(
+        TFilamentAsset *filamentAsset
+    );
+    EMSCRIPTEN_KEEPALIVE void FilamentAsset_getEntities(
+        TFilamentAsset *filamentAsset,
+        EntityId* out
+    );
+
+    
+#ifdef __cplusplus
+}
+#endif
+

thermion_dart/native/src/c_api/TFilamentAsset.cpp

@@ -0,0 +1,34 @@
+#include <gltfio/FilamentAsset.h>
+
+#include "c_api/TSceneAsset.h"
+#include "scene/SceneAsset.hpp"
+#include "scene/GltfSceneAsset.hpp"
+#include "scene/GeometrySceneAssetBuilder.hpp"
+
+using namespace thermion;
+
+#ifdef __cplusplus
+
+extern "C"
+{
+#endif
+
+EMSCRIPTEN_KEEPALIVE uint32_t FilamentAsset_getEntityCount(
+    TFilamentAsset *tFilamentAsset
+) { 
+    auto *filamentAsset = reinterpret_cast<gltfio::FilamentAsset*>(tFilamentAsset);
+    return filamentAsset->getEntityCount();
+}
+EMSCRIPTEN_KEEPALIVE void FilamentAsset_getEntities(
+    TFilamentAsset *tFilamentAsset,
+    EntityId* out
+) {
+    auto *filamentAsset = reinterpret_cast<gltfio::FilamentAsset*>(tFilamentAsset);
+    for(int i=0; i < filamentAsset->getEntityCount(); i++) { 
+        out[i] = utils::Entity::smuggle(filamentAsset->getEntities()[i]);
+    }
+}
+#ifdef __cplusplus
+}
+#endif
+