Fixed bug with asset drag/drop

docs/tasks/core.todo

@@ -7,6 +7,7 @@ Build System:
     ✔ Modify .sh scripts to recognize the noeditor flag @done (1/25/2022, 3:59:23 PM)
 
 Core:
+    ☐ Figure out how to represent Unique Entities and entity instances - and how this will work with UUIDs @critical
     ☐ Implement generic serializeation system
         ☐ JSON serializeable base class
             ☐ JSON implementions should be stubbed out in non-editor builds

src/run_modes/editor/contents/content_manager.cpp

@@ -271,6 +271,7 @@ namespace lunarium { namespace editor
         mAssets[asset->mID] = asset;
         id = asset->mID;
 
+        Save().LogIfFailed(Editor::LogCat, "Asset was created");
         return OpRes::OK();        
     }
 
@@ -331,7 +332,12 @@ namespace lunarium { namespace editor
     void ContentManager::MoveAsset(EditorAsset* asset, std::filesystem::path to)
     {
         std::filesystem::path from = mpProject->GetAssetDirectory() / asset->GetFileLocation();
+
+        // Not all assets will have files associated with them
+        if (std::filesystem::exists(from))
+        {
             std::filesystem::rename(from, to);
+        }
         std::filesystem::path r = mpProject->MakeRelativeToAssets(to);
         asset->mLocation = r;
 

src/run_modes/editor/panels/asset_browser.cpp

@@ -108,7 +108,7 @@ namespace editor
                     mSelectedDir = dir;
                     ImGui::SetNextItemOpen(false);
                 }
-                HandleAssetDrop(mSelectedDir);                                           
+                HandleAssetDrop(dir);                                           
             }
             
             for(auto const& dir_entry: std::filesystem::directory_iterator{dir})

src/run_modes/editor/panels/world_tree.cpp

@@ -69,9 +69,10 @@ namespace lunarium
         void WorldTree::DoFrame()
         {
             Entity *pSelection = nullptr;
-            if (mpWorld)
+            if (!mpWorld)
             {
-                ImGui::SetNextItemOpen(true);
+                ImGui::Text("No World Loaded");
+                return;
             }
 
             if (ImGui::TreeNode("World Root") && mpWorld)