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feat(ui): ludic.ui is a UI framework - input, controls, render3d backend, the CSS a game needs

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A game no longer writes a host:
- The runtime reads Input itself: focus and keyboard navigation (Tab, arrows, Enter/Space,
  autofocus), the pointer (hover, :active, click on release, drag), and scroll boxes with the
  wheel, a draggable scrollbar, clipping and scroll-into-view.
- HTML's controls are built in (button, checkbox, radio, range, select, text, key capture), made
  of plain parts a stylesheet styles, each reporting with on-change and event.value.
- ludic.ui/render3d.ludic draws with render3d's overlay: textures, named atlases (icon:NAME),
  nine-slice border-image, rounded rects and rings, clipping, and a scale.
- Hooks for the program's language, sounds and clock (ui_translator, ui_sounds, ui_clock).
- ui_dev: hot reload, errors on screen, LUDIC_UI_DUMP.
- CSS:
  - colours as #rgb / #rrggbbaa / rgb() / rgba() / names;
  - border-radius and outline (following the radius), box-shadow, background-image and a tinted
    border-image;
  - group opacity, @keyframes / animation, transition;
  - :focus, :focus-visible and :focus-within.
- HTML mixed content, and boolean attributes.
- render3d gains tex_width / tex_height, and the XML reader keeps text runs in order.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-24 17:26:09 +03:00
parent 20d011f8e9
commit 1dad96102a
45 changed files with 1386 additions and 218 deletions
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14
changes/defaults-views-templates.md
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@ -39,6 +39,20 @@ with:
- native elements a program draws itself (`ui_native`, `ui_fire`), and form controls;
- errors with file and line, hot reload (`ui_reload`), and an inspector-style dump.
The runtime is a UI framework, not only a template engine:
- it takes input itself: focus and keyboard navigation, the pointer, scroll boxes, `autofocus`;
- it has built-in controls (button, checkbox, radio, range, select, text, key), styled as CSS
parts;
- `ludic.ui/render3d.ludic` is a render3d backend, with textures, atlases, nine-slices, clipping
and scale;
- more CSS: `rgba()`/`#rrggbbaa`, `border-radius`, `outline`, `box-shadow`, `background-image`,
`border-image`, group `opacity`, `@keyframes` / `animation` / `transition`;
- HTML mixed content, and boolean attributes;
- hooks for the program's language, sounds and clock.
render3d gains `tex_width` / `tex_height`, and the XML reader keeps text runs among elements in
order (`mixed`).
A `view` field set to a literal or a named function's result needs no type.
Screens are drawn through a registered renderer. `Value` gains a float kind.