Splitting the code into single files is done. \o/

include/effect_cycle.h

@@ -0,0 +1,20 @@
+#ifndef effect_cycle_H
+#define effect_cycle_H
+
+#include "Effect.h"
+#include "effects.h"
+
+class CycleEffect : public Effect {
+  private:
+    Effect* effect;
+    long effectSince = 0;
+  public:
+    void changeEffect();
+
+    boolean can_be_shown_with_clock();
+    boolean clock_as_mask();
+
+    void loop();
+};
+
+#endif