`fheroes2` is a recreation of HoMM2 game engine. This port is set with
`GET_HOMM2_DEMO=ON` for a free demo version to be automatically
downloaded and used, without requiring the user to provide game
resources from the original game.
Besides the provided patches, we set `CXXFLAGS="'-D_GNU_SOURCE'"` to
build the port, for SerenityOS' `LibC/endian.h` to provide required
endianness functions and constants.
**Considerations**:
* In-game custom cursor is not working, game logs show:
`Cursors are not currently supported` [0].
* Game is still unplayable, as it commonly raises a Kernel panic when
trying to start a new game (reported at SerenityOS/serenity#9401).
[0] ae3bc94772/src/events/SDL_mouse.c (L952)
`SDL2_mixer` needs `libmpg123` to support MP3 playback. By adding
it as a dependency, its compilation now outputs:
```
checking mpg123.h usability... yes
checking mpg123.h presence... yes
checking for mpg123.h... yes
checking for mpg123_replace_reader_handle in -lmpg123... yes
-- dynamic libmpg123 -> libmpg123.so.0
```
Sound output was tested with
[an implementation](https://gist.github.com/cdave1/10563386) found
online.
Add `libmpg123` port, for dependant projects to be able to use it.
This port doesn't include the entire `mpg123` project, just the
`libmpg123` library.
This required updating a bunch of patches which had conflicts
in the latest version.
New Patches:
- serenity: Add bogus O_NDELAY just to allow the port to compile
- serenity: Disable nice() stress workload as we do not implement it
- serenity: Disable prctl stressor on serenity
CMake defaults to the current directory if the source or build
directory is not specified. Harfbuzz builds into an alternate
directory so it fails. This change specifies the directory prior
to any additional parameters so the build can succeed with
cmake 3.18.4.
Only 'sha256' or 'sig' are allowed in the 'auth_type' field in order for
the linter to pass. Reflect that into the README and give a description
on what to do to create a hash.
Also expand the examples to include a SHA256 hash.
