Implements calling Lua.

src/iScene.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include <cstdint>
+
+#include "Frame.h"
+#include "iAllocator.h"
+#include "iDrawable.h"
+#include "iWritable.h"
+
+
+namespace gj {
+
+
+class iScene {
+ public:
+  iScene() = default;
+  iScene(iScene&&) = default;
+  iScene(const iScene&) = default;
+
+  iScene& operator=(iScene&&) = default;
+  iScene& operator=(const iScene&) = default;
+
+  virtual ~iScene() = default;
+
+  /* Returns next scene if this scene ends, otherwise nullptr. */
+  virtual UniqPtr<iScene> Update(Frame& f) = 0;
+};
+
+
+}