Allows the Settings > Hotkeys screen to be localised, including hotkey decriptions, groups and contexts.
The hotkey names are exposed to localisation via KeycodeExts. Hotkey modifiers are similarly exposed via ModifersExts.
The Settings > Input screen has a Zoom Modifier dropdown, which shows the localised modifier name.
The --check-yaml utility command is taught to recognise all hotkey translation, so it can validate their usage.
The terms "width" and "height" are clearer and they match what the values actually represent (window or parent width/height). The YAML changes are generated with the update rule.
Mod metadata, load screens and mod content is all now sourced from ftl files, allowing these items to be translated.
Translations are now initialized as part of ModData creation, as currently they are made available too late for the usage we need here.
The "modcontent" mod learns a new parameter for "Content.TranslationFile" - this allows a mod to provide the path of a translation file to the mod which it can load. This allows mods such as ra, cnc, d2k, ts to own the translations for their ModContent, yet still make them accessible to the modcontent mod.
CheckFluentReference learns to validate all these new fields to ensure translations have been set.
The ExtractEmmyLuaAPI utility command, invoked with `--emmy-lua-api`, produces a documentation file that is used by the [OpenRA Lua Language Extension](https://marketplace.visualstudio.com/items?itemName=openra.vscode-openra-lua) to provide documentation and type information is VSCode and VSCode compatible editors when editing the Lua scripts.
We improve the documentation and types produced by this utility in a few ways:
- Require descriptions to be provided for all items.
- Fix the type definitions of the base engine types (cpos, wpos, wangle, wdist, wvec, cvec) to match with the actual bindings on the C# side. Add some extra bindings for these types to increase their utility.
- Introduce ScriptEmmyTypeOverrideAttribute to allow the C# side of the bindings to provide a more specific type. The utility command now requires this to be used to avoid accidentally exporting poor type information.
- Fix a handful of scripts where the new type information revealed warnings.
The ability to ScriptEmmyTypeOverrideAttribute allows parameters and return types to provide a more specific type compared to the previous, weak, type definition. For example LuaValue mapped to `any`, LuaTable mapped to `table`, and LuaFunction mapped to `function`. These types are all non-specific. `any` can be anything, `table` is a table without known types for its keys or values, `function` is a function with an unknown signature.
Now, we can provide specific types. , e.g. instead of `table`, ReinforcementsGlobal.ReinforceWithTransport is able to specify `{ [1]: actor, [2]: actor[] }` - a table with keys 1 and 2, whose values are an actor, and a table of actors respectively. The callback functions in MapGlobal now have signatures, e.g. instead of `function` we have `fun(a: actor):boolean`. In UtilsGlobal, we also make use of generic types. These work in a similar fashion to generics in C#. These methods operate on collections, we can introduce a generic parameter named `T` for the type of the items in those collections. Now the return type and callback parameters can also use that generic type. This means the return type or callback functions operate on the same type as whatever type is in the collection you pass in. e.g. Utils.Do accepts a collection typed as `T[]` with a callback function invoked on each item typed as `fun(item: T)`. If you pass in actors, the callback operates on an actor. If you pass in strings, the callback operates on a string, etc.
Overall, these changes should result in an improved user experience for those editing OpenRA Lua scripts in a compatible IDE.
In 4312a4d3f4 MiniYaml merging was adjusted. One effect of this change was that duplicate keys in files that did not previously require merging was previously allowed, but was now an error. (Test case `TestMergeConflictsNoMerge`)
The installer files were relying on the previous behaviour to allow multiple `ContentPackage` keys. The above change caused a regression where attempting to manage mod content would crash due to now erroring on the duplicate keys.
We fix the issue by applying a unique ID suffix, as is a common pattern elsewhere in our yaml files, and teach InstallFromSourceLogic to recognise and strip it.
