Rationale:
When a mod adds a custom option menu, it adds a space before it, like this:
```
AddOptionMenu OptionsMenu
{
StaticText ""
Submenu "$MYTITLE", MyOptions
}
```
to prevent custom option menu being in the same block as the last entries in the
standard options list. It's okay.
But when more than one such mod is loaded, each one of them adds a space before
their option menu entry, and Options Menu becomes unnecessary bloated.
This simple edit allows mods to not add a space, still be separated from
standard options.
This is both for consistency and better localizability. The old code is retained to ensure that mods inheriting from the old menu continue to work.
# Conflicts:
# src/menu/menudef.cpp
# src/namedef.h
# wadsrc/static/zscript/ui/menu/optionmenu.zs
This was done because the backdrop as implemented was the only texture in the entire game that had to be deleted and recreated each frame.
However, with Vulkan this would have necessitated quite a bit of synchronization with the render pipeline which wasn't really feasible just for this one single texture.
Now the texture manager can assume that once a texture was created it will be immutable and never has to change.
# Conflicts:
# src/CMakeLists.txt
# src/textures/backdroptexture.cpp
# src/v_2ddrawer.cpp
This deprecated CharAt and CharCodeAt for being unsuitable for text processing and in the case of CharCodeAt also for being buggy.
A new replacement, ByteAt has been added that reads a string byte by byte, as well as CodePointCount, which counts the amount of Unicode code points in a string and GetNextCodePoint which reads the string code point by code point.
Note that while this woll work as intended with the currently supported languages as a means to read single characters, there is no guarantee that this will remain so if Unicode support gets extended to things which break the "one code point == one character" assumption.
1. Top-level menu names are now properly handled.
2. Changing "Any or All terms" option now immediately updates the results.
3. Reformatted menu.zs to have tabs instead of spaces.
* entering a savegame description did not work anymore
* the length check was too restrictive and always underestimated the available space
* use the console font for entering a savegame description. This has more characters and better contrast for this content.
* the interface to the text enterer used bad measurements.
# Conflicts:
# wadsrc/static/zscript/ui/menu/optionmenuitems.zs
This was broken by several small unicode-incompatible code fragments.
This commit also removes the input limit for the player name and the savegame description. With multibyte encoding, limiting them to a fixed length did not work right.
Currently these will just overflow the fields if the text becomes too long, this needs some additional work.
Without this the class cannot be properly subclassed.
# Conflicts:
# wadsrc/static/zscript/ui/menu/optionmenuitems.zs
# Conflicts:
# wadsrc/static/zscript/ui/menu/optionmenuitems.zs
