C++ SimSet::findObjectByInternalName方法代码示例

TerrainMaterial* TerrainMaterial::findOrCreate( const char *nameOrPath )
{
   SimSet *set = Sim::getTerrainMaterialSet();
   
   if ( !nameOrPath || !nameOrPath[0] )
      nameOrPath = "warning_material";

   // See if we can just find it.
   TerrainMaterial *mat = dynamic_cast<TerrainMaterial*>( set->findObjectByInternalName( StringTable->insert( nameOrPath ) ) );
   if ( mat )
      return mat;

   // We didn't find it... so see if its a path to a
   // file.  If it is lets assume its the texture.
   if ( GBitmap::sFindFiles( nameOrPath, NULL ) )
   {
      mat = new TerrainMaterial();
      mat->setInternalName( nameOrPath );
      mat->mDiffuseMap = nameOrPath;
      mat->registerObject();
      Sim::getRootGroup()->addObject( mat );
      return mat;
   }

   // Ok... return a debug material then.
   mat = dynamic_cast<TerrainMaterial*>( set->findObjectByInternalName( StringTable->insert( "warning_material" ) ) );
   if ( !mat )
   {
      // This shouldn't happen.... the warning_texture should
      // have already been defined in script, but we put this
      // fallback here just in case it gets "lost".
      mat = new TerrainMaterial();
      mat->setInternalName( "warning_material" );
      mat->mDiffuseMap = GFXTextureManager::getWarningTexturePath();
      mat->mDiffuseSize = 500;
      mat->mDetailMap = GFXTextureManager::getWarningTexturePath();
      mat->mDetailSize = 5;
	  mat->mMacroMap = GFXTextureManager::getWarningTexturePath();
	  mat->mMacroSize = 200;
      mat->registerObject();
      
      Sim::getRootGroup()->addObject( mat );
   }

   return mat;
}

bool TerrainMaterial::onAdd()
{
   if ( !Parent::onAdd() )
      return false;

   SimSet *set = Sim::getTerrainMaterialSet();

   // Make sure we have an internal name set.
   if ( !mInternalName || !mInternalName[0] )
      Con::warnf( "TerrainMaterial::onAdd() - No internal name set!" );
   else
   {
      SimObject *object = set->findObjectByInternalName( mInternalName );
      if ( object )
         Con::warnf( "TerrainMaterial::onAdd() - Internal name collision; '%s' already exists!", mInternalName );
   }

   set->addObject( this );

   return true;
}

SimObject* SimSet::findObjectByInternalName(StringTableEntry internalName, bool searchChildren)
{
   iterator i;
   for (i = begin(); i != end(); i++)
   {
      SimObject *childObj = static_cast<SimObject*>(*i);
      if(childObj->getInternalName() == internalName)
         return childObj;
      else if (searchChildren)
      {
         SimSet* childSet = dynamic_cast<SimSet*>(*i);
         if (childSet)
         {
            SimObject* found = childSet->findObjectByInternalName(internalName, searchChildren);
            if (found) return found;
         }
      }
   }

   return NULL;
}