Update: Translations from eints
spanish (mexican): 14 changes by absay
finnish: 32 changes by hpiirai
polish: 2 changes by yazalo

Codechange: [OSX] CMake source group for OSX files.

This separates the OSX specific files into a proper folder when generating
Xcode project files.

Codechange: [OSX] Re-arrange the OSX video driver code by combining all drawing code and moving the window/event handling to a different file.

This is just a code move/rename, not a functionality change.

Add: always set PERSONAL_DIR "/content_download" in search path (#8481)

This means that if you start OpenTTD with "-c" to indicate another
location to store files, it can still read the content you already
downloaded from your PERSONAL_DIR. This folder is, however,
read-only.

This is useful for situations where you downloaded OpenGFX via
the content-service, but want to run the regression or want to
run with a clean configuration. With this change, you no longer
need to download OpenGFX again.

Add: use our search-paths to find fonts based on relative filenames too

This allows "small_font = ./myfont.ttf", with "myfont.ttf" located
in "~/.openttd".

Fix: prevent clients making emergency saves twice if server disconnects (#8477)

This was clearly overlooked during the initial implementation.

Update: Translations from eints
finnish: 3 changes by hpiirai
catalan: 29 changes by J0anJosep

Codechange: [OSX] Prevent the compiler from using SSE4 instructions unless we want to.

This improves compatibility on older systems. We don't need to disable anything
older, as there are no SSE2-only Macs.

Codechange: move some DEBUG-levels and remove some others in saveload routine (#8474)

When running with -dsl=2 it is very easy to miss important information
as there was a lot of noise in between too. This tunes the debug
levels a bit to be less noisy while keeping the important bits.

Update: Translations from eints
finnish: 4 changes by hpiirai
french: 1 change by glx22

Update: Translations from eints
spanish (mexican): 42 changes by absay
russian: 4 changes by Ln-Wolf
finnish: 2 changes by hpiirai
french: 35 changes by glx22
polish: 25 changes by yazalo

Update: Translations from eints
korean: 4 changes by telk5093
german: 84 changes by UnsuspiciousGooball
finnish: 4 changes by hpiirai
slovak: 7 changes by FuryPapaya

Fix #8297: Infrastructure counters for road tunnels, bridges, depots … (#8454)

The previous fix 887e9481ff0e70df6bf93ce15a3899a03f124c50 only worked for roads and failed to consider a multiplier used for the infrastructure totals for tunnels/bridges.
Also, depots and bus/truck stops are counted as 2 road pieces on creation but were only counted as 1 road piece on conversion because the function DiagDirToRoadBits() was used, which only ever returns single-piece road segments.

Co-authored-by: A. S <admin-git@sotai.tk>

Update: Translations from eints
korean: 6 changes by telk5093
finnish: 6 changes by hpiirai
slovak: 47 changes by FuryPapaya

Update: Translations from eints
russian: 19 changes by lexuslatvia
finnish: 1 change by hpiirai
latvian: 19 changes by lexuslatvia

Fix #6452: Reset only editable and visible settings from GUI (#7890)

Also enables the Reset button while in-game for AI configs.

Cleanup: Remove unused ChunkType flag CH_AUTO_LENGTH

CH_AUTO_LENGTH is no longer used anywhere, so remove all code
that depends on it.

Cleanup: Remove save-only autolength flag from economy chunk handlers

CH_AUTO_LENGTH is only used when saving chunks; it makes no sense
to set it for chunks without a save handler.

Codechange: Unconditionally use static_assert

We're well past having to support non-C++11 compliant compilers now.

Change: Switch tree GUI to use dynamically generated buttons

This makes it look a bit better in climates with fewer tree types.

Update: Translations from eints
korean: 18 changes by telk5093

Fix f66baa44: for-loop is no longer increasing "i"

During conversion it was overlooked that the for-loop used to do
this. Oops.

Fix: [Actions] cmakeBuildType is only used with CMakeListsTxtBasic (#8435)

We use CMakeListsTxtAdvanced, and as such, we have to do this our
self via "-DCMAKE_BUILD_TYPE=RelWithDebInfo". Otherwise we are
producing Debug builds instead of Release builds. Oops.

Fix: [Emscripten] using TIC/TOC on this platform is silly

Stop throwing a warning about this, as it is not likely we will
ever implement it.

Fix: [Emscripten] compile with exceptions enabled, as our AIs depend on it

Also parts of the saveload code does, and some other places. This
does slow down builds, but for most computers this will not be
measurable. At least, the ones I had access to I could not find
a difference in FPS, mainly as that is heavily limited by the Hz
of the screens of the computer.

Either way, it is better to have a full functional game than a
fast one in my opinion

Fix f66baa44: index was off by one (#8433)

i++ in the 3rd part of a for() is post, not pre. Oops.

Update: Translations from eints
finnish: 10 changes by hpiirai

Fix #6468: don't store version of AIs-started-via-console in name

You can do: "startai myai.3", which starts version 3 of "myai".
This is very useful for testing save/load code between different
versions of your AI.

However, when using this syntax, the AI got saved as "myai.3" as
name of the AI, instead of "myai". This caused several problems,
like indicating to the user the AI could not be found, but still
load the AI. But in all cases, the AI never got the chance to
load the saved data, making the whole reason this exists pointless.

By splitting the name and version already in the console command,
the code becomes simpler and AIs started this way now follow the
normal flow after initialization.

Codechange: move block a bit lower to increase readability

It was rather confusing that "library_name" was calculated, and
then not used to do the FindLibrary() call. Flipping those two
blocks around makes it a bit more sane to read.

Doc: for over 10 years now, we do not load the exact AI version first (#8431)

See commit fae34ee7 for details. The documentation simply never
got updated.

Change: [Linkgraph] Allow job threads to be aborted early when clearing schedule (#8416)

When link graph jobs are cleared due to abandoning the game or exiting,
flag the job as aborted.
The link graph job running in a separate thread checks the aborted flag
periodically and terminates processing early if set.
This reduces the delay at game abandon or exit if a long-running job
would otherwise still be running.

Update: Translations from eints
finnish: 1 change by hpiirai

Update: Translations from eints
arabic (egypt): 15 changes by AviationGamerX
korean: 15 changes by telk5093
finnish: 12 changes by hpiirai

Update: Translations from eints
korean: 2 changes by telk5093
catalan: 13 changes by perezdidac

Change: [Linkgraph] Only acquire thread join performance measurements on network clients

Network servers and single player clients do not block on thread joins
due to instead pausing shortly before the join is due.

Change: [Linkgraph] Pause the game when linkgraph jobs lag (#6470)

Check if the job is still running two date fract ticks before it is due
to join, and if so pause the game until its done.
When loading a game, check if the game would block immediately due to
a job which is scheduled to be joined within two date fract ticks,
and if so pause the game until its done.
This avoids the main thread being blocked on a thread join, which appears
to the user as if the game is unresponsive, as the UI does not repaint
and cannot be interacted with.
Show if pause is due to link graph job in status bar, update network
messages.
This does not apply for network clients.

Fix: next 67 savegame versions are used in PatchPacks; skip them (#8411)

Various of PatchPacks (Spring 2013, Joker, ChillPP) used versions
slightly higher than ours. Of course, as time went by, this
caught up with us, and we are now almost pushing a new version
that would conflict with them. To avoid users creating unneeded
issues about "why can I not load my savegame", lets be ahead of
the curve and flat-out refuse to load them.

Version-wise, this is totally fine. We have ~32k versions to go
before we run out (0x8000 is masked by JGRPP; we should avoid
using that). At the rate we bump savegames, this is not going to
happen in any sane reality.

Feature: Option to group vehicle lists by shared orders

This applies to all kinds of vehicle lists, as well as the "vehicle groups" window.

Codechange: Make vehicle lists internally support grouping of vehicles

This is in preparation for the new UI feature that allows grouping by shared orders.

Doc: some comments for the win32 video driver (#8409)

Co-authored-by: Niels Martin Hansen <nielsm@indvikleren.dk>

Fix: support non-ubuntu/debian Linux variants with LSB support (#8408)

This now generates a warning, as we would still like people to
make a Pull Request to support the target. But it does continue
with packing to a txz.

Update: Translations from eints
vietnamese: 3 changes by KhoiCanDev
russian: 4 changes by Ln-Wolf
polish: 11 changes by yazalo

Remove: Remnants of PSP support.

No active target is that limited in concurrent file descriptors.

Update: Translations from eints
korean: 1 change by telk5093
slovak: 6 changes by FuryPapaya
latvian: 9 changes by lexuslatvia