Initial round of particle factories

Editor/Resource.hpp

@@ -0,0 +1,50 @@
+#ifndef URDE_RESOURCE_HPP
+#define URDE_RESOURCE_HPP
+
+#include <HECL/Database.hpp>
+#include "Space.hpp"
+
+namespace URDE
+{
+
+/** Combines a ProjectPath with actively used Space references
+ *
+ *  This class is intended to be heap-allocated in a hierarchical mapping, so the entire tree
+ *  of resources is available in-memory to systems that need it. Refreshes of the index will
+ *  continue to use existing allocations that haven't been deleted.
+ *
+ *  The key purpose of this class is to centrally register observer-nodes for resources that
+ *  are updated via editing, or external file changes.
+ */
+class Resource
+{
+public:
+    using ProjectDataSpec = HECL::Database::Project::ProjectDataSpec;
+private:
+    HECL::ProjectPath m_path;
+    Space::Class m_defaultClass = Space::Class::None;
+    EditorSpace* m_editingSpace = nullptr;
+    std::vector<ViewerSpace*> m_viewingSpaces;
+public:
+    static Space::Class DeduceDefaultSpaceClass(const HECL::ProjectPath& path);
+    explicit Resource(HECL::ProjectPath&& path)
+    : m_path(std::move(path)), m_defaultClass(DeduceDefaultSpaceClass(m_path)) {}
+    const HECL::ProjectPath& path() const {return m_path;}
+};
+
+/** Provides centralized hierarchical lookup and ownership of Resource nodes */
+class ResourceTree
+{
+public:
+    struct Node
+    {
+        std::map<HECL::ProjectPath, std::unique_ptr<Node>> m_subnodes;
+        std::map<HECL::ProjectPath, std::unique_ptr<Resource>> m_resources;
+    };
+private:
+    std::unique_ptr<Node> m_rootNode;
+};
+
+}
+
+#endif // URDE_RESOURCE_HPP