The beginnings of a rework

include/ILEDArrangement.h

@@ -0,0 +1,15 @@
+#ifndef ILEDARRANGEMENT_H
+#define ILEDARRANGEMENT_H
+
+#include <Arduino.h>
+
+// Interface is not pure virtual 
+class ILEDArrangement {
+    public:
+        ILEDArrangement() {}
+        virtual ~ILEDArrangement() {}
+
+        virtual int16_t XY(int16_t x, int16_t y, int16_t width, int16_t height) = 0;
+};
+
+#endif