text: //
  // Copyright (c) 2008-2015 the Urho3D project.
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  // THE SOFTWARE.
  //
  
  #include "../Precompiled.h"
  
  #include "../Core/Context.h"
  #include "../Graphics/DebugRenderer.h"
  #include "../IO/Log.h"
  #include "../Navigation/NavArea.h"
  #include "../Scene/Node.h"
  
  namespace Urho3D
  {
  
  static const unsigned MAX_NAV_AREA_ID = 255;
  static const Vector3 DEFAULT_BOUNDING_BOX_MIN(-10.0f, -10.0f, -10.0f);
  static const Vector3 DEFAULT_BOUNDING_BOX_MAX(10.0f, 10.0f, 10.0f);
  static const unsigned DEFAULT_AREA_ID = 0;
  
  extern const char* NAVIGATION_CATEGORY;
  
  NavArea::NavArea(Context* context) :
      Component(context),
      areaID_(DEFAULT_AREA_ID),
      boundingBox_(DEFAULT_BOUNDING_BOX_MIN, DEFAULT_BOUNDING_BOX_MAX)
  {
  }
  
  NavArea::~NavArea()
  {
  }
  
  void NavArea::RegisterObject(Context* context)
  {
      context->RegisterFactory<NavArea>(NAVIGATION_CATEGORY);
  
      URHO3D_COPY_BASE_ATTRIBUTES(Component);
      URHO3D_ATTRIBUTE("Bounding Box Min", Vector3, boundingBox_.min_, DEFAULT_BOUNDING_BOX_MIN, AM_DEFAULT);
      URHO3D_ATTRIBUTE("Bounding Box Max", Vector3, boundingBox_.max_, DEFAULT_BOUNDING_BOX_MAX, AM_DEFAULT);
      URHO3D_ACCESSOR_ATTRIBUTE("Area ID", GetAreaID, SetAreaID, unsigned, DEFAULT_AREA_ID, AM_DEFAULT);
  }
  
  void NavArea::SetAreaID(unsigned newID)
  {
      if (newID > MAX_NAV_AREA_ID)
          URHO3D_LOGERRORF("NavArea Area ID %u exceeds maximum value of %u", newID, MAX_NAV_AREA_ID);
      areaID_ = (unsigned char)newID;
      MarkNetworkUpdate();
  }
  
  BoundingBox NavArea::GetWorldBoundingBox() const
  {
      Matrix3x4 mat;
      mat.SetTranslation(node_->GetWorldPosition());
      return boundingBox_.Transformed(mat);
  }
  
  void NavArea::DrawDebugGeometry(DebugRenderer* debug, bool depthTest)
  {
      if (debug && IsEnabledEffective())
      {
          Matrix3x4 mat;
          mat.SetTranslation(node_->GetWorldPosition());
          debug->AddBoundingBox(boundingBox_, mat, Color::GREEN, depthTest);
      }
  }
  
  }
  