Working on RenderTarget example

src/dawnopengl/display/RenderManager.hpp

@@ -0,0 +1,36 @@
+// Copyright (c) 2022 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "display/_RenderManager.hpp"
+
+namespace Dawn {
+  class BackBufferRenderTarget;
+
+  class RenderManager :
+    public IRenderManager,
+    public std::enable_shared_from_this<RenderManager>
+  {
+
+    public:
+      std::shared_ptr<BackBufferRenderTarget> renderTarget;
+    
+      /**
+       * Construct a new RenderManager for a game instance.
+       * 
+       * @param game Game instance this render manager belongs to.
+       */
+      RenderManager(std::weak_ptr<DawnGame> game);
+
+      std::shared_ptr<RenderTarget> getBackBuffer() override;
+      void init() override;
+      void update() override;
+      
+      /**
+       * Destroy a previously initialized RenderManager.
+       */
+      ~RenderManager();
+  };
+}