Refactor scene graph: Move scene loading to separate class.

2026-05-08 04:20:14 -05:00 · 2016-12-15 10:06:30 +01:00
parent 0ad004bdc9
commit 4751ce36c4
66 changed files with 1551 additions and 2209 deletions
@@ -0,0 +1,92 @@
+/*****************************************************************************************
+*                                                                                       *
+* OpenSpace                                                                             *
+*                                                                                       *
+* Copyright (c) 2014-2016                                                               *
+*                                                                                       *
+* Permission is hereby granted, free of charge, to any person obtaining a copy of this  *
+* software and associated documentation files (the "Software"), to deal in the Software *
+* without restriction, including without limitation the rights to use, copy, modify,    *
+* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to    *
+* permit persons to whom the Software is furnished to do so, subject to the following   *
+* conditions:                                                                           *
+*                                                                                       *
+* The above copyright notice and this permission notice shall be included in all copies *
+* or substantial portions of the Software.                                              *
+*                                                                                       *
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,   *
+* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A         *
+* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT    *
+* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF  *
+* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE  *
+* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                                         *
+****************************************************************************************/
+
+#ifndef __OPENSPACE_CORE___SCENELOADER___H__
+#define __OPENSPACE_CORE___SCENELOADER___H__
+
+#include <memory>
+#include <string>
+
+#include <ghoul/misc/dictionary.h>
+#include <ghoul/lua/ghoul_lua.h>
+
+#include <openspace/scene/scenegraphnode.h>
+#include <openspace/util/camera.h>
+
+namespace openspace {
+
+class Scene;
+
+class SceneLoader {
+public:
+    struct LoadedNode {
+        LoadedNode(
+            const std::string& nodeName,
+            const std::string& parentName,
+            const std::vector<std::string>& deps,
+            std::unique_ptr<SceneGraphNode> n)
+        {
+            name = nodeName;
+            parent = parentName;
+            dependencies = deps;
+            node = std::move(n);
+        }
+
+        std::string name;
+        std::string parent;
+        std::vector<std::string> dependencies;
+        std::unique_ptr<SceneGraphNode> node;
+    };
+
+    struct LoadedCamera {
+        LoadedCamera(
+            const std::string& parentName,
+            std::unique_ptr<Camera> c)
+        {
+            parent = parentName;
+            camera = std::move(c);
+        }
+        std::string parent;
+        std::unique_ptr<Camera> camera;
+    };
+
+    SceneLoader() = default;
+    ~SceneLoader() = default;
+    
+    std::unique_ptr<Scene> loadScene(const std::string& path);
+    std::vector<SceneGraphNode*> importDirectory(Scene& scene, const std::string& directory);
+    SceneGraphNode* importNodeDictionary(Scene& scene, const ghoul::Dictionary& dictionary);
+
+private:
+    SceneLoader::LoadedNode loadNode(const ghoul::Dictionary& dictionary);
+    std::vector<SceneLoader::LoadedNode> loadModule(const std::string& path, lua_State* luaState);
+    std::vector<SceneLoader::LoadedNode> loadDirectory(const std::string& path, lua_State* luaState);
+
+    SceneLoader::LoadedCamera loadCamera(const ghoul::Dictionary& dictionary);
+    std::vector<SceneGraphNode*> addLoadedNodes(Scene& scene, std::vector<SceneLoader::LoadedNode> nodes);
+};
+
+}
+
+#endif  // __OPENSPACE_CORE___SCENELOADER___H__