Commit graph

556 commits

Author SHA1 Message Date
Pedro J. Estébanez
8ed259b792 Modernize RWLock
- Based on C++14's `shared_time_mutex`
- No more need to allocate-deallocate or check for null
- No pointer anymore, just a member variable
- Platform-specific implementations no longer needed
- Simpler for `NO_THREADS`
2021-01-19 11:53:10 +01:00
Marcel Admiraal
2a74b388d0 Split OS::execute into two methods
1. execute(): Executes a command and returns the results.
2. create_process(): Creates a new process and returns the new process' id.
2021-01-09 10:03:23 +00:00
Rémi Verschelde
b5334d14f7
Update copyright statements to 2021
Happy new year to the wonderful Godot community!

2020 has been a tough year for most of us personally, but a good year for
Godot development nonetheless with a huge amount of work done towards Godot
4.0 and great improvements backported to the long-lived 3.2 branch.

We've had close to 400 contributors to engine code this year, authoring near
7,000 commit! (And that's only for the `master` branch and for the engine code,
there's a lot more when counting docs, demos and other first-party repos.)

Here's to a great year 2021 for all Godot users 🎆
2021-01-01 20:19:21 +01:00
Marcel Admiraal
d9e9eb8d04 Rename MainLoop methods to match Node methods 2020-12-22 12:34:57 +00:00
Alf Kraus
68fdd753a7 wrong double quote output with .csv fixed 2020-12-11 11:42:43 +01:00
bruvzg
644f739660
Static analyzer fixes:
Removes unused code in OS.
Fixes return types.
Fixes few typos.
2020-12-09 10:17:53 +02:00
bruvzg
493da99269
[Complex Text Layouts] Implement TextServer interface. Implement Fallback TextServer. 2020-11-26 13:55:26 +02:00
Rafał Mikrut
7bd03b7188 Initialize class/struct variables with default values in core/ and drivers/ 2020-11-23 17:38:46 +01:00
Aaron Franke
02161aad5a
Remove empty lines around braces with the formatting script 2020-11-16 23:38:11 -05:00
Rémi Verschelde
32464e569f
Merge pull request #40748 from RandomShaper/improve_packed_fs_api
Improve/fix packed data API
2020-11-10 10:59:34 +01:00
reduz
127458ed17 Reorganized core/ directory, it was too fatty already
-Removed FuncRef, since Callable makes it obsolete
-Removed int_types.h as its obsolete in c++11+
-Changed color names code
2020-11-07 20:17:12 -03:00
HaSa1002
f8ac4c4d75 MainLoop: Remove deprecated methods 2020-11-01 12:38:30 +01:00
Rémi Verschelde
819c3524a5
OS: Remove unused get_splash_tick_msec
It was added in 3e20391bf6 but it doesn't seem
particularly useful, and it was only implemented for the custom splash branch
and not the default one, so it could return an uninitialized int.
2020-09-24 15:40:30 +02:00
bruvzg
80b8eff6aa
[Complex Test Layouts] Change String to use UTF-32 encoding on all platforms. 2020-09-03 19:56:24 +03:00
Andrii Doroshenko (Xrayez)
0cc05c5a31 Register GDScript test tools as test commands to run via command-line 2020-09-02 01:43:26 +03:00
Pedro J. Estébanez
f38949a44d Improve/fix packed data API
- Enhance directory API
- Fix `FileAccess::exists()` not checking for PackedData being disabled
- Fix moving to the parent directory (`..`)
- Allow absolute paths in existence checks
2020-07-27 12:06:40 +02:00
PouleyKetchoupp
b2d27214aa Keep debug & verbose options after loading project from project manager 2020-07-09 09:51:32 +02:00
Fabio Alessandrelli
1b6e3458b2 Move frame delaying functions from Main to OS.
Will allow specific platforms to override it and avoid blocking on the
main/GUI thread.
2020-06-30 19:39:09 +02:00
Juan Linietsky
438c380458 Add a separate application focus/in notification out from Window focus notification. 2020-06-30 10:40:06 -03:00
Rémi Verschelde
4b5b60de85
Merge pull request #39189 from touilleMan/issue-38925
Unify OS.get_system_time_* and OS.get_unix_time
2020-06-15 23:57:16 +02:00
Hugo Locurcio
9c0d214776
Print errors when calling MIDI input methods on unsupported platforms
This partially addresses #32065.
2020-05-31 19:10:27 +02:00
Emmanuel Leblond
c6de3872f9
Remove OS.get_system_time_secs/get_system_time_msecs and change OS.get_unix_time return type to double 2020-05-31 14:19:31 +02:00
bruvzg
d0b5174b6a
[Windows] Add tablet driver selection. 2020-05-20 09:37:32 +03:00
Rémi Verschelde
85220fec01 Style: Remove unnecessary semicolons from core
Semicolons are not necessary after function definitions or control flow
blocks, and having some code use them makes things inconsistent (and
occasionally can mess up `clang-format`'s formatting).

Removing them is tedious work though, I had to do this manually (regex
+ manual review) as I couldn't find a tool for that. All other code
folders would need to get the same treatment.
2020-05-19 15:57:56 +02:00
Rémi Verschelde
ca3192d18a Style: Fix unnecessary semicolons that confused clang-format 2020-05-19 11:24:58 +02:00
Rémi Verschelde
0ee0fa42e6 Style: Enforce braces around if blocks and loops
Using clang-tidy's `readability-braces-around-statements`.
https://clang.llvm.org/extra/clang-tidy/checks/readability-braces-around-statements.html
2020-05-14 21:57:34 +02:00
Rémi Verschelde
07bc4e2f96 Style: Enforce separation line between function definitions
I couldn't find a tool that enforces it, so I went the manual route:
```
find -name "thirdparty" -prune \
  -o -name "*.cpp" -o -name "*.h" -o -name "*.m" -o -name "*.mm" \
  -o -name "*.glsl" > files
perl -0777 -pi -e 's/\n}\n([^#])/\n}\n\n\1/g' $(cat files)
misc/scripts/fix_style.sh -c
```

This adds a newline after all `}` on the first column, unless they
are followed by `#` (typically `#endif`). This leads to having lots
of places with two lines between function/class definitions, but
clang-format then fixes it as we enforce max one line of separation.

This doesn't fix potential occurrences of function definitions which
are indented (e.g. for a helper class defined in a .cpp), but it's
better than nothing. Also can't be made to run easily on CI/hooks so
we'll have to be careful with new code.

Part of #33027.
2020-05-14 16:54:55 +02:00
Rémi Verschelde
0be6d925dc Style: clang-format: Disable KeepEmptyLinesAtTheStartOfBlocks
Which means that reduz' beloved style which we all became used to
will now be changed automatically to remove the first empty line.

This makes us lean closer to 1TBS (the one true brace style) instead
of hybridating it with some Allman-inspired spacing.

There's still the case of braces around single-statement blocks that
needs to be addressed (but clang-format can't help with that, but
clang-tidy may if we agree about it).

Part of #33027.
2020-05-14 16:54:55 +02:00
Rémi Verschelde
1a8167867b Modernize remaining uses of 0/NULL instead of nullptr (C++11)
Using clang-tidy's `modernize-use-nullptr`.
https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-nullptr.html
2020-05-14 13:45:01 +02:00
Rémi Verschelde
1f6f364a56 Port member initialization from constructor to declaration (C++11)
Using `clang-tidy`'s `modernize-use-default-member-init` check and
manual review of the changes, and some extra manual changes that
`clang-tidy` failed to do.

Also went manually through all of `core` to find occurrences that
`clang-tidy` couldn't handle, especially all initializations done
in a constructor without using initializer lists.
2020-05-14 10:01:56 +02:00
Rémi Verschelde
69de7ce38c Style: clang-format: Disable AllowShortCaseLabelsOnASingleLine
Part of #33027.
2020-05-10 13:13:54 +02:00
Rémi Verschelde
e956e80c1f Style: clang-format: Disable AllowShortIfStatementsOnASingleLine
Part of #33027, also discussed in #29848.

Enforcing the use of brackets even on single line statements would be
preferred, but `clang-format` doesn't have this functionality yet.
2020-05-10 13:12:16 +02:00
bruvzg
d978658f81
[Windows] Add support for the WinTab API for pen input. 2020-05-05 14:16:02 +03:00
Rémi Verschelde
fdf58a5858 Rename InputFilter back to Input
It changed name as part of the DisplayServer and input refactoring
in #37317, with the rationale that input no longer goes through the
main loop, so the previous Input singleton now only does filtering.

But the gains in consistency are quite limited in the renaming, and
it breaks compatibility for all scripts and tutorials that access
the Input singleton via the scripting language. A temporary option
was suggested to keep the scripting singleton named `Input` even if
its type is `InputFilter`, but that adds inconsistency and breaks C#.

Fixes godotengine/godot-proposals#639.
Fixes #37319.
Fixes #37690.
2020-04-28 15:19:49 +02:00
lupoDharkael
95a1400a2a Replace NULL with nullptr 2020-04-02 13:38:00 +02:00
Rémi Verschelde
cd4e46ee65 SCons: Format buildsystem files with psf/black
Configured for a max line length of 120 characters.

psf/black is very opinionated and purposely doesn't leave much room for
configuration. The output is mostly OK so that should be fine for us,
but some things worth noting:

- Manually wrapped strings will be reflowed, so by using a line length
  of 120 for the sake of preserving readability for our long command
  calls, it also means that some manually wrapped strings are back on
  the same line and should be manually merged again.

- Code generators using string concatenation extensively look awful,
  since black puts each operand on a single line. We need to refactor
  these generators to use more pythonic string formatting, for which
  many options are available (`%`, `format` or f-strings).

- CI checks and a pre-commit hook will be added to ensure that future
  buildsystem changes are well-formatted.
2020-03-30 09:05:53 +02:00
bruvzg
15a9f94346 Add macOS DisplayServer implementation.
Change global menu to use Callable, add support for check items and submenus.
2020-03-26 16:24:05 +01:00
Juan Linietsky
543fb1c4da Separate DisplayServer from OS on Windows 2020-03-26 15:49:41 +01:00
Juan Linietsky
4758057f20 Working multiple window support, including editor 2020-03-26 15:49:40 +01:00
Juan Linietsky
8e6960a69e Refactored input, goes all via windows now.
Also renamed Input to InputFilter because all it does is filter events.
2020-03-26 15:49:39 +01:00
Juan Linietsky
f8a79a97c7 Effective DisplayServer separation, rename X11 -> LinuxBSD 2020-03-26 15:49:34 +01:00
Juan Linietsky
4396e98834 Refactored Input, create DisplayServer and DisplayServerX11 2020-03-26 15:49:32 +01:00
Rémi Verschelde
13a9bfbca7 Style: Harmonize header guards to style guide [Core] 2020-03-25 11:22:19 +01:00
Rémi Verschelde
cb282c6ef0 Style: Set clang-format Standard to Cpp11
For us, it practically only changes the fact that `A<A<int>>` is now
used instead of the C++03 compatible `A<A<int> >`.

Note: clang-format 10+ changed the `Standard` arguments to fully
specified `c++11`, `c++14`, etc. versions, but we can't use `c++17`
now if we want to preserve compatibility with clang-format 8 and 9.
`Cpp11` is still supported as deprecated alias for `Latest`.
2020-03-17 07:36:24 +01:00
Fabio Alessandrelli
d96179be75 Fix mutex when building with no threads. 2020-03-08 01:53:13 +01:00
Rémi Verschelde
42595085a5
Merge pull request #36752 from RandomShaper/rework_semaphore
Drop old semaphore implementation
2020-03-05 16:33:45 +01:00
Pedro J. Estébanez
9a3a2b03b8 Drop old semaphore implementation
- Removed platform-specific implementations.
- Now all semaphores are in-object, unless they need to be conditionally created.
- Similarly to `Mutex`, provided a dummy implementation for when `NO_THREADS` is defined.
- Similarly to `Mutex`, methods are made `const` for easy use in such contexts.
- Language bindings updated: `wait()` and `post()` are now `void`.
- Language bindings updated: `try_wait()` added.

Bonus:
- Rewritten the `#ifdef` in `mutex.h` to meet the code style.
2020-03-03 13:20:42 +01:00
Pedro J. Estébanez
aee586553a Improve UX of drive letters
Namely, move the drive dropdown to just the left of the path text box and don't include the former
in the latter.

This improves the UX on Windows.

In the UNIX case, since its concept of drives is (ab)used to provide shortcuts to useful paths, its
dropdown is kept at the original location.
2020-03-03 10:38:34 +01:00
Rémi Verschelde
e2b66cacf7
Merge pull request #18020 from bruvzg/input_fix_non_latin_and_add_hw_scancodes
Fix non-latin layout scancodes on Linux, adds access to physical scancodes.
2020-03-01 23:00:42 +01:00
Yuri Roubinsky
5e3c64828a Fix InputEventKey::echo type from INT to BOOL 2020-03-01 09:52:37 +03:00
Pedro J. Estébanez
18fbdbb456 Reimplement Mutex with C++'s <mutex>
Main:
- It's now implemented thanks to `<mutex>`. No more platform-specific implementations.
- `BinaryMutex` (non-recursive) is added, as an alternative for special cases.
- Doesn't need allocation/deallocation anymore. It can live in the stack and be part of other classes.
- Because of that, it's methods are now `const` and the inner mutex is `mutable` so it can be easily used in `const` contexts.
- A no-op implementation is provided if `NO_THREADS` is defined. No more need to add `#ifdef NO_THREADS` just for this.
- `MutexLock` now takes a reference. At this point the cases of null `Mutex`es are rare. If you ever need that, just don't use `MutexLock`.
- Thread-safe utilities are therefore simpler now.

Misc.:
- `ScopedMutexLock` is dropped and replaced by `MutexLock`, because they were pretty much the same.
- Every case of lock, do-something, unlock is replaced by `MutexLock` (complex cases where it's not straightfoward are kept as as explicit lock and unlock).
- `ShaderRD` contained an `std::mutex`, which has been replaced by `Mutex`.
2020-02-26 20:40:10 +01:00
Juan Linietsky
33b5c57199 Variant: Added 64-bit packed arrays, renamed Variant::REAL to FLOAT.
- Renames PackedIntArray to PackedInt32Array.
- Renames PackedFloatArray to PackedFloat32Array.
- Adds PackedInt64Array and PackedFloat64Array.
- Renames Variant::REAL to Variant::FLOAT for consistency.

Packed arrays are for storing large amount of data and creating stuff like
meshes, buffers. textures, etc. Forcing them to be 64 is a huge waste of
memory. That said, many users requested the ability to have 64 bits packed
arrays for their games, so this is just an optional added type.

For Variant, the float datatype is always 64 bits, and exposed as `float`.

We still have `real_t` which is the datatype that can change from 32 to 64
bits depending on a compile flag (not entirely working right now, but that's
the idea). It affects math related datatypes and code only.

Neither Variant nor PackedArray make use of real_t, which is only intended
for math precision, so the term is removed from there to keep only float.
2020-02-25 12:55:53 +01:00
bruvzg
1af06d3d46
Rename scancode to keycode.
Add `physical_keycode` (keyboard layout independent keycodes) to InputEventKey and InputMap.
Fix non-latin keyboard layout keycodes on Linux/X11 (fallback to physical keycodes).
2020-02-25 12:30:33 +02:00
Juan Linietsky
3c0059650d Added StringName as a variant type.
Also changed all relevant properties defined manually to StringName.
2020-02-21 14:25:29 +01:00
Juan Linietsky
3205a92ad8 PoolVector is gone, replaced by Vector
Typed `PoolTypeArray` types are now renamed `PackedTypeArray` and are
sugar for `Vector<Type>`.
2020-02-18 10:10:36 +01:00
Juan Linietsky
867d073b98 Changed logic and optimized ObjectID in ObjectDB and Variant, removed RefPtr. 2020-02-15 08:36:04 -03:00
Rémi Verschelde
3dea5fd631 Remove incomplete battery status/power API
It was initially implemented in #5871 for Godot 3.0, but never really
completed or thoroughly tested for most platforms. It then stayed in
limbo and nobody seems really keen to finish it, so it's better to
remove it in 4.0, and re-add eventually (possibly with a different API)
if there's demand and an implementation confirmed working on all
platforms.

Closes #8770.
2020-02-14 13:43:32 +01:00
Rémi Verschelde
6289e7d147 Merge pull request #29993 from bruvzg/vulkan
Initial Vulkan support for macOS (MoltenVK) and Windows
2020-02-11 11:57:40 +01:00
bruvzg
b456bfad5c Add runtime GLES2 / Vulkan context selection. 2020-02-11 11:57:34 +01:00
bruvzg
eb48be51db Add static Vulkan loader.
Initial Vulkan support for Windows.
Initial Vulkan support for macOS.
2020-02-11 11:57:11 +01:00
Juan Linietsky
c613ead5fa Added a spinlock template as well as a thread work pool class.
Also, optimized shader compilation to happen on threads.
2020-02-11 11:53:29 +01:00
Marcel Admiraal
f0db13502a Remove duplicate WARN_PRINT macro. 2020-02-05 11:13:24 +01:00
Marcel Admiraal
5af3b4ca27 Remove duplicate ERR_PRINT macro. 2020-02-05 11:13:24 +01:00
Rémi Verschelde
c2e07db071
Merge pull request #35438 from MadEqua/virtual-keyboard-line-edit
Android virtual keyboard respecting LineEdit max length.
2020-01-23 08:20:24 +01:00
Bruno Lourenço
a3bcdbeb78 Android virtual keyboard respecting LineEdit max length. 2020-01-23 01:52:49 +00:00
Hugo Locurcio
90a1f8d8a7
Make OS.execute() blocking by default if not specified
This makes `OS.execute()` calls quicker to set up when calling programs
in a blocking fashion.
2020-01-23 01:26:32 +01:00
Ovnuniarchos
9c48eb1c59 ALSA MIDI driver:
Pith bend message now has correct size (was 2 bytes instead of 3).
	Recognized (but not implemented) 0xF? messages. SysEx messages will be reocognized as such, but their contents will be ignored.
2020-01-22 21:41:48 +01:00
bruvzg
d07cdc594f
[macOS] Load PCK from the .app bundle resources, instead of changing working directory. 2020-01-10 18:02:29 +02:00
Rémi Verschelde
8454804972
Merge pull request #33967 from Calinou/add-os-is-window-focused
Add an `OS.is_window_focused()` getter
2020-01-06 11:39:18 +01:00
Rémi Verschelde
a7f49ac9a1 Update copyright statements to 2020
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00
TerminalJack
e1dda5195c Added support for vertical syncing via the Windows OS compositor (DWM.) 2019-12-04 11:14:21 +01:00
あるる / きのもと 結衣
e8410c03f5 fixed set pitch bend value and implemented midi running status 2019-12-03 16:22:02 +09:00
Hugo Locurcio
21a3923410
Add an OS.is_window_focused() getter
This makes it possible to know whether the window is focused
at a given time, without having to track the focus state manually
using `NOTIFICATION_WM_FOCUS_IN` and `NOTIFICATION_WM_FOCUS_OUT`.

This partially addresses #33928.
2019-11-28 16:42:51 +01:00
Marcel Admiraal
83069a3c0f Remove ERR_EXPLAIN macros and the scaffolding they needed. 2019-11-11 10:57:00 +01:00
Marcel Admiraal
d18b2e599d Remove all uses of ERR_EXPLAIN macros. 2019-11-11 10:24:04 +01:00
Rémi Verschelde
9d4e596c69 doc: Sync classref with current source
Fix incomplete binding.
2019-11-08 16:00:01 +01:00
Rémi Verschelde
31f327a4a9
Merge pull request #33052 from KoBeWi/naughty_sliders
Fix analog input in sliders
2019-11-08 09:55:11 +01:00
Tomasz Chabora
a7b202ef18 Fix analog input in sliders 2019-11-07 16:39:14 +01:00
bruvzg
f675621725
[macOS, Windows, X11] Add graphic tablet pen pressure and tilt support to InputEventMouseMotion event. 2019-10-30 14:42:21 +02:00
Cagdas
0088385556 Add request permission automatically at android 2019-10-22 22:52:13 +03:00
Marcel Admiraal
c2aa3e2351 Remove circular include between core/typedefs.h and core/error_macros.h 2019-10-08 11:03:57 +02:00
Rémi Verschelde
dec10dd776
Merge pull request #32051 from qarmin/some_error_explanation
Added some obvious errors explanations
2019-09-25 11:51:54 +02:00
qarmin
17732fe698 Added some obvious errors explanations 2019-09-25 10:28:50 +02:00
Rémi Verschelde
4f294b958f doc: Sync classref with current source
Fix a few missing bindings or unspecified argument names and default values.
2019-09-24 11:52:06 +02:00
fhuya
a7712cc9e4 Add new events and accompanying logic to notify when the app is paused and resumed on Android devices. 2019-09-19 13:29:49 -07:00
Tomasz Chabora
e21cc3cc8d Don't transform global position of mouse input 2019-09-03 00:58:10 +02:00
bruvzg
db6d4352ea
[macOS] Add methods to modify global and dock menus. Add ability to open multiple editor/project manager instances, recent/favourite project list to project manager dock menu and opened scene list to editor dock menu. 2019-08-26 16:45:49 +03:00
Rémi Verschelde
1a4dbd9ee2
Merge pull request #31437 from volzhs/vibrate-mobile
Support vibration for Android and iOS
2019-08-21 21:10:22 +02:00
volzhs
4061e5bb75 Support vibration for Android and iOS 2019-08-21 23:38:53 +09:00
Fabio Alessandrelli
c19871af6d Move CryptoCore to it's own folder.
Crypto classes will be placed in core/crypto.
2019-08-19 16:31:05 +02:00
Braden Bodily
71d71d55b5 Replace 'ERR_EXPLAIN' with 'ERR_FAIL_*_MSG' in 'core/' and 'editor/'
Condensed some if and ERR statements. Added dots to end of error messages

Couldn't figure out EXPLAINC. These files gave me trouble: core/error_macros.h, core/io/file_access_buffered_fa.h (where is it?),
core/os/memory.cpp,
drivers/png/png_driver_common.cpp,
drivers/xaudio2/audio_driver_xaudio2.cpp (where is it?)
2019-08-17 12:33:15 +02:00
Rémi Verschelde
6c607c3564
Merge pull request #31266 from IAmActuallyCthulhu/pr/remove-redundant-author-comments
Remove redundant author doc comments
2019-08-14 13:45:54 +02:00
Rémi Verschelde
37a16fee05 Export: Remove temp files from cache after export
So far we left most temporary files lying around, so this attempts to
fix that.

I added a helper method to DirAccess to factor out the boilerplate of
creating a DirAccess, checking if the file exists, remove it or print
an error on failure.
2019-08-12 13:31:59 +02:00
IAmActuallyCthulhu
82b9557803
Remove redundant author doc comments 2019-08-12 04:26:38 -05:00
Rémi Verschelde
43238bb59a DirAccess: Drop compat get_next(bool *is_dir) which was hidden
Fixes this warning:
```
./core/os/dir_access.h:74:17: warning: 'virtual String DirAccess::get_next(bool*)' was hidden [-Woverloaded-virtual]
```

Part of #30790.
2019-07-25 11:09:57 +02:00
Rémi Verschelde
e9d624d7ce
Merge pull request #30239 from Faless/crypto/crypto_core
CryptoCore class to access to base crypto utils.
2019-07-02 14:52:43 +02:00
Fabio Alessandrelli
564d93ff10 CryptoCore class to access to base crypto utils.
Godot core needs MD5/SHA256/AES/Base64 which used to be provided by
separate libraries.
Since we bundle mbedtls in most cases, and we can easily only include
the needed sources if we so desire, let's use it.

To simplify library changes in the future, and better isolate header
dependencies all functions have been wrapped around inside a class in
`core/math/crypto_base.h`.

If the mbedtls module is disabled, we only bundle the needed source
files independently of the `builtin_mbedtls` option.
If the module is enabled, the `builtin_mbedtls` option works as usual.

Also remove some unused headers from StreamPeerMbedTLS which were
causing build issues.
2019-07-02 12:36:27 +02:00
Rémi Verschelde
98879be276
Merge pull request #27510 from fire/screenshot_editor
Add editor screenshot on control - f12.
2019-07-02 11:30:16 +02:00
K. S. Ernest (iFire) Lee
05de0eafab Add editor screenshot on control - f12. 2019-07-01 13:39:21 -07:00
Rémi Verschelde
b0ce9401ff
Merge pull request #30126 from qarmin/remove_unnecessary_code
Remove unnecessary code and add some error explanations
2019-07-01 14:32:04 +02:00