Composite.hpp

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#ifndef DART_COMMON_COMPOSITE_HPP_
#define DART_COMMON_COMPOSITE_HPP_
 
#include "dart/common/detail/CompositeData.hpp"
 
namespace dart {
namespace common {
 
class Composite
{
public:
 
  using State = detail::CompositeState;
  using Properties = detail::CompositeProperties;
 
  using AspectMap = std::map< std::type_index, std::unique_ptr<Aspect> >;
  using RequiredAspectSet = std::unordered_set<std::type_index>;
 
  template <typename... Aspects>
  using MakeState = detail::MakeCompositeState<Aspects...>;
 
  template <typename... Aspects>
  using MakeProperties = detail::MakeCompositeProperties<Aspects...>;
 
  virtual ~Composite() = default;
 
  Composite() = default;
 
  // TODO(MXG): Consider making this safe by cloning Aspects into the new copy
  Composite(const Composite&) = delete;
 
  Composite(Composite&&) = delete;
 
  Composite& operator=(const Composite&) = delete;
 
  Composite& operator=(Composite&&) = delete;
 
  template <class T>
  bool has() const;
 
  template <class T>
  T* get();
 
  template <class T>
  const T* get() const;
 
  template <class T>
  void set(const T* aspect);
 
  template <class T>
  void set(std::unique_ptr<T>&& aspect);
 
  template <class T, typename ...Args>
  T* createAspect(Args&&... args);
 
  template <class T>
  void removeAspect();
 
  template <class T>
  std::unique_ptr<T> releaseAspect();
 
  template <class T>
  static constexpr bool isSpecializedFor();
 
  template <class T>
  bool requiresAspect() const;
 
  void setCompositeState(const State& newStates);
 
  State getCompositeState() const;
 
  void copyCompositeStateTo(State& outgoingStates) const;
 
  void setCompositeProperties(const Properties& newProperties);
 
  Properties getCompositeProperties() const;
 
  void copyCompositePropertiesTo(Properties& outgoingProperties) const;
 
  void duplicateAspects(const Composite* fromComposite);
 
  void matchAspects(const Composite* otherComposite);
 
protected:
 
  void addToComposite(Aspect* aspect);
 
  void removeFromComposite(Aspect* aspect);
 
  void _set(std::type_index type_idx, const Aspect* aspect);
 
  void _set(std::type_index type_idx, std::unique_ptr<Aspect> aspect);
 
  AspectMap mAspectMap;
 
  RequiredAspectSet mRequiredAspects;
};
 
//==============================================================================
// TODO(MXG): Consider putting this functionality into the Composite class
// itself. Also consider allowing the user to specify arguments for the
// constructors of the Aspects.
template <class T>
void createAspects(T* /*comp*/);
 
//==============================================================================
template <class T, class NextAspect, class... Aspects>
void createAspects(T* comp);
 
} // namespace common
} // namespace dart
 
#include "dart/common/detail/Composite.hpp"
 
#endif // DART_COMMON_COMPOSITE_HPP_