tess::EntityHandleAdapter Concept Reference

#include <tess/ecs/adapter.h>

Concept definition

template<typename A>
concept EntityHandleAdapter = requires(const A& adapter, EntityHandle handle,
                                       const typename A::entity_type& entity) {
  typename A::entity_type;
  { adapter.to_handle(entity) } noexcept -> std::same_as<EntityHandle>;
  {
    adapter.to_entity(handle)
  } noexcept -> std::same_as<typename A::entity_type>;
}

Detailed Description

Lossless conversion contract between a native entity and EntityHandle.

Implementations must map the native null entity to kNullEntityHandle in both directions.