Update: Translations from eints
danish: 20 changes by bscargo

Codechange: Don't access cargo filter before it is initialized. (#11321)

The cargo filter list is initialized during window OnInit, but the first
build of the filtered list occurred before this.

Codechange: Don't pass GUI cargo filter constants to command system. (#11320)

CMD_BUILD_VEHICLE expects CT_INVALID to indicate a new vehicle should not
be refitted on build, but the code passed CF_NONE instead. CF_NONE has the
same numeric value at CT_INVALID, so the test passed, but...

Codechange: All ParagraphLayoutFactory::AppendToBuffer assume that the buffer has at least some space.
Assert on that.

Fix: only count distance traveled in vehicles for cargo payment (#11283)

No longer you can utilize the free (and instant) labour of station
workers, transporting your cargo from one part of the station to
the other. No more!

Based on patch by dP.

Update: Translations from eints
korean: 1 change by telk5093

Fix #11315: Sort industries and cargoes by name* in industry chain window.

*Cargo types are sorted by the normal method so it's not strictly alphabetical.

Fix: Don't produce invalid cargo. (#11314)

Production for secondary industries did not always check that the produced cargo type isn't valid.

Codechange: use better location for the "invalid" action sentinel value

It used to be a random sentinel for end-of-(widget-)list that was used to tell
that no action has taken place yet. Since the last action is practically the
widget that was pressed, add the sentinel to that enumeration.

Fix #11307: Incorrect GroupStatistics after selling leading wagon

When this results in a countable consist

Codechange: Rename INVALID_CARGO to INVALID_CARGO_BITNUM

... to avoid future ambiguity.

Update: Translations from eints
english (us): 20 changes by 2TallTyler

Update: Translations from eints
romanian: 18 changes by bnegrut
turkish: 22 changes by densxd
dutch: 20 changes by Afoklala
portuguese: 21 changes by azulcosta

Codechange: Rename RoadType parameter of MakeRoadDepot

See: #9642

Fix: compilation failed on gcc 10.2 due to missing include. (#11300)

'_exit' is defined in 'unistd.h'.

Update: Translations from eints
english (au): 20 changes by krysclarke
korean: 25 changes by telk5093
russian: 20 changes by Ln-Wolf
finnish: 20 changes by hpiirai
french: 20 changes by glx22
portuguese (brazilian): 20 changes by pasantoro

Add: Install additional documentation files with the game

Also include it in Emscripten packages

Update: Translations from eints
swedish: 1 change by joeax910

Doc: Add more hyperlinks within the included documentation (#11288)

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

Update: Translations from eints
swedish: 2 changes by optiedev
vietnamese: 11 changes by KhoiCanDev
romanian: 5 changes by bnegrut
danish: 2 changes by bscargo
dutch: 2 changes by Afoklala
portuguese: 2 changes by azulcosta
polish: 15 changes by pAter-exe

Codechange: Use std::copy/fill pattern to initialize rail and road specs. (#11285)

This avoids use of lengthof and array indices.

Fix: don't compare next_station when trying to merge CargoPackets

For vehicle packets they shouldn't be compared, and for station
packets they are already in a bucket per next_station.

Feature: [NewGRF] Related Act2 objects for airports and airport tiles.

Airports are similar two stations and industries, both of which have the town as related object.
Airport tiles are similar to industry tiles, which have the industry as related object.
This seems a sensible structure, so let's make it Airport Tile -> Airport -> Town.

Add: [NewGRF] Inspection window for airports.

As as the station window combines all station types, accessing the
debug view is via the parent of the airport tile only.

Fix b0e73277: cargodist information got lost when splitting of cargo (#11280)

During b0e73277 we removed loaded_at_xy, but I kinda forgot that
it was a union with next_station. Now next_station wasn't copied
anymore, or checked in AreMergable.

Codechange: cleanup CargoPacket in terms of variable/function names (#11278)

Over the years, things got reused and changed, making the current
names somewhat unclear in what they actually mean and do.

Codechange: Reduce size of TextEffectMode and TextEffectID.

TextEffectID was promoted to size_t in #9235, when it was used in loops.
However since then the relevant code uses range-for or iterators instead.

Codechange: Make INVALID_TE_ID a TextEffectID instead of a TextEffectMode.

Type-correctness?

Codechange: Don't allocate a text effect with INVALID_TE_ID.

Previously, despite INVALID_TE_ID existing, it was not checked during allocation and there was no limit to the number of text effects.

Codechange: Use std::find_if to find or assign a text effect slot.

This replaces an index-based loop.

Codechange: Use std::array for TemporaryStorageArray.

This removes the need for initialisation with memset().

Codechange: Use std::array and std::unique_ptr for PersistentStorageArrays.

This (mostly) avoids the need for manual memory management and copying.

Codechange: Using alias and std::array for company expense storage. (#11273)

This simplifies passing yearly expenses to functions and use of std algorithms.

Fix: asserts unintentially being partially disabled in release-builds (#11268)

The nlohmann-json header file includes assert.h, which rudely resets
the assert macro to what that header thinks is right. As we set the
assert macro to be active with release builds when WITH_ASSERT is
active, this means that every file including nlohmann-json has their
asserts disabled (for release-builds) but files that don't do no.

Let's avoid this issue, by telling nlohmann to not include assert.h.

Fix: Inaccurate waiting cargo total in station window when using cargodist (#11213)

For stations with many flows and/or small cargo packets,
due to accumulated inaccuracies in DivideApprox.

The displayed total should match GoodsEntry::TotalCount().

Update: Translations from eints
english (us): 4 changes by 2TallTyler

Update: Translations from eints
french: 2 changes by ottdfevr

Codechange: Return update nwid_begin instead of count.

This avoids needing to keep track of how many widget parts have been consumed, instead we only to ensure nwid_begin < nwid_end.

Codechange: Use begin/end of nwidget parts of begin/length.

This simplifies processing nwidget parts as, unlike the remaining length, the pointer to the end of the list never changes. This is the same principle as we use(d) for tracking end instead of length for C-style strings.

And this removes 160~ instances of the lengthof() macro.

Codechange: Allow using more than 65536 NewGRF string IDs.

NewGRF string allocation allowed up to 524288 strings, however stringid was passed as uint16_t which limits to 2^16.

Change: Replace fixed length _grf_text array with vector.

Additionally reshuffle GRFTextEntry for better alignment.

This removes a mostly-unused static 20MB allocation.

Update: Translations from eints
english (au): 2 changes by krysclarke
russian: 3 changes by Ln-Wolf
finnish: 2 changes by hpiirai
portuguese (brazilian): 2 changes by pasantoro

Codechange: Reorder some high-use structs to reduce their size. (#11201)

This reduces GoodsEntry from 144 to 136 bytes (thereby reducing Station from 9704 bytes to 9192 bytes), and CargoPacket from 40 bytes to 32 bytes.