#ifndef SYSTEM_H_6B40E1B9
#define SYSTEM_H_6B40E1B9

enum class SystemKey {
  Transform,
  Input,
  Character,
  Animation,
  Camera,
  Message,
  Script
};

class System {
public:

  virtual void tick(double dt) {}
};

#endif /* end of include guard: SYSTEM_H_6B40E1B9 */