Threading for renderer, textures, entities, game state

include/state/gamestate.hpp

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <shared_mutex>
+#include <vector>
+#include <utils.hpp>
+#include <object/entity.hpp>
+
+namespace Game::State {
+    class GameState {
+        public:
+            static GameState& getInstance() { static GameState instance; return instance; }
+
+            // Retrieve a COPY of the entities - Only used by renderer, use getAtIndex() for generic access
+            const std::vector<Object::Entity>& getEntities();
+            // Retrieve a REFERENCE of the entities; DANGEROUS!
+            std::vector<Object::Entity>* getEntitiesRef();
+            // Update entity at index, by REFERENCE
+            Object::Entity* getAtIndex(size_t at);
+
+        private:
+            mutable std::shared_mutex mMutex;
+            std::vector<Object::Entity> mEntities;
+    };
+}