Method undo

Engine/source/gui/worldEditor/terrainEditor.cpp:1651–1678

}

void TerrainEditor::TerrainEditorUndoAction::undo()
{
   // NOTE: This function also handles TerrainEditorUndoAction::redo().

   bool materialChanged = false;

   for (U32 i = 0; i < mSel->size(); i++)
   {
      // Grab the current grid info for this point.
      GridInfo info;
      mTerrainEditor->getGridInfo( (*mSel)[i].mGridPoint, info );
      info.mMaterialChanged = (*mSel)[i].mMaterialChanged;

      materialChanged |= info.mMaterialChanged;

      // Restore the previous grid info.
      mTerrainEditor->setGridInfo( (*mSel)[i] );

      // Save the old grid info so we can
      // restore it later.
      (*mSel)[i] = info;
   }

   // Mark the editor as dirty!
   mTerrainEditor->setDirty();
   mTerrainEditor->gridUpdateComplete( materialChanged );
   mTerrainEditor->mMouseBrush->update();
}

void TerrainEditor::submitMaterialUndo( String actionName )
{