File 'content_sao' splitted into folder 'src/server/object'.

[Unarelith]

So as @SmallJoker asked, I'm splitting #7900 into two distinct PRs.

[rubenwardy]

PR lgtm, but I haven't done a diff to check for modifications

To do:

• Update Android makefile source list

- [ ] Get approval for moving to .hpp

[nerzhul]

header files should be .h instead of .hpp

[paramat]

Thanks.
I like what this does, but if it conflicts with any of the blocker PRs i think those have priority for merge https://github.com/minetest/minetest/pulls?q=is%3Aopen+is%3Apr+label%3ABlocker

[paramat]

This PR seems good to me in concept.

[paramat]

Concerning filenames, in #7902 moved files are not renamed, i guess there is some advantage to this. But where you are creating new files you are using PascalCase with no underscores. I think underscores make filenames more readable.
It's also the project convention and a dev rule:
https://dev.minetest.net/Code_style_guidelines
"Files should be named using lowercase_underscore style."
Since we are going to have many more files with your changes it's even more important that the filenames are very readable.

[paramat]

More thoughts on filenames, see #7908 (comment) onwards. Removed my -1.

[paramat]

As decided elsewhere, snake_case please.

[paramat]

@nerzhul 's request "header files should be .h instead of .hpp" seems done.

Done.

[paramat]

I prefer .h too:

• Less work.

• mapgen.cpp looks visually quite similar to mapgen.hpp, only one character differs, so it is visually easier to distinguish files when using .h.

[Unarelith]

Hey @paramat, I forgot this one. The goal of this PR was also to split a big file into multiple smaller files.

[nerzhul]

i missed that PR, but now it's useless, i did the refacto + some code cleanups myself last week