anchor.diff:  move data.tar ../src/studio
   cd ..\projects\
   %msbuild_cmd% tmp/vs2019/LumixEngine.sln /p:Configuration=RelWithDebInfo
  +if not %errorlevel%==0 pause
   del ..\src\studio\data.tar
   
   REM push gl version
   mkdir itch_io
   copy tmp\vs2019\bin\RelWithDebInfo\studio.exe itch_io\
   butler.exe push itch_io mikulasflorek/lumix-engine:win-64-gl
  +if not %errorlevel%==0 pause
   
   REM download dx
   pushd ..\plugins
   git.exe clone https://github.com/nem0/lumixengine_dx.git dx
  +if not %errorlevel%==0 pause
   popd
   
   REM build engine.exe with bundled data
  
positive.code: if not %errorlevel%==0 set msbuild_cmd="C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\MSBuild.exe"
  
  REM put butler in path or in ..\butler\
  SET PATH=%PATH%;..\butler\
  
  REM clean everything
  git.exe clean -f -x -d
  
  REM download physx
  mkdir 3rdparty
  cd 3rdparty
  git.exe clone --depth=1 https://github.com/nem0/PhysX.git physx
  
  REM build static physx
  cd PhysX\physx
  call generate_projects.bat lumix_vc16win64_static
  %msbuild_cmd% "compiler\vc16win64\PhysXSDK.sln" /p:Configuration=Release /p:Platform=x64
  
  REM deploy physx
  cd ..\..\..\
  
negative.code: 
  REM create engine project
  genie.exe --embed-resources --static-physx vs2019
  if not %errorlevel%==0 pause
  
  REM build engine.exe with bundled data
  cd ..\data
  