SceneTraversal.h

#pragma once
 
#include "Components/Core/SceneComponent.h"
 
#include "Foundation/ComponentModel/Entity.h"
 
namespace Cogs
{
  namespace Core
  {
    template<typename ComponentType, typename MemberType, class Recurse>
    void applyRecursiveFieldChange(ComponentModel::Entity * entity, MemberType ComponentType::* member, MemberType value, Recurse recurse)
    {
      ComponentModel::ComponentCollection<ComponentType> collection;
 
      entity->getComponents(collection);
 
      for (auto & component : collection) {
        component.*member = value;
        component.setChanged();
 
      }
 
      if (recurse == nullptr || recurse(entity)) {
        const SceneComponent* sceneComponent = entity->getComponent<SceneComponent>();
        if (sceneComponent) {
          for (auto& child : sceneComponent->children) {
            applyRecursiveFieldChange(child.get(), member, value, recurse);
          }
        }
      }
    }
  }
}