As I said before, the areas I want to get must NOT be rectangles, but they can take any shape, so I need to track every block.
Please pay attention to this aspect and help me instead of the code I have extended. I have read the documentation https://mcforge.readthedocs.io/en/latest/datastorage/worldsaveddata/ several times.
My question is:
1) Is my code correct?
2) how do i save my ntb in worldsavedata class?