ludic/changes
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feat(anim): animation ergonomics — named clips, Anim.play/Motion.to, frame events, fluent Tween handles (#48)
The ergonomic layer over the engine-owned SpriteAnim/Motion systems (#43):

- Named clips: Anim.clip("run", frames, fps, mode) registers a clip by name and
  Anim.play(entity, "run") plays it; Anim.play(entity, fps, frames, mode) sets
  the clip directly. A name-keyed registry in systems.ludic.
- Frame events: Anim.on_frame(entity, frame) arms optional SpriteAnim
  event_frame/event_fired fields; the engine flags the tick the clip first lands
  on that frame, and Anim.fired(entity) reads it — the game reacts, so it stays
  inside the no-runtime-dispatch event model.
- Motion.to(entity, from, to, dur, ease) starts a value tween over the Motion
  component in one call (reflection-ABI writes, resetting the timer).
- Fluent Tween handles (runtime/native/tween.ludic): Tween.to / Tween.chain /
  Tween.delay build a sequenced, disposable handle advanced by a new engine-owned
  system (esys_tween, run each Update tick); Tween.value / Tween.done /
  Tween.parallel / Tween.stop read and control it. The 1-arg Tween.done(handle)
  is disambiguated from the 2-arg pure Tween.done(timer, dur).

Splicing: g_uses_anim_rt pulls in systems.ludic; g_uses_tween_rt pulls in
tween.ludic and inserts esys_tween into the Update phase. All integer and
deterministic, so animation and motion reproduce exactly under replay/lockstep.

Worked example + regression: examples/library/anim_sugar.ludic
(4 8 2 1 0 100 100 0 0 1 20 20 30 0 1). Twelve new docs pages (Anim, the new
Motion namespace, Tween handles). Full suite 77 passed, self-host C-free fixpoint
intact, no golden drift.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-31 16:53:16 +03:00
..
anim-ergonomics.md feat(anim): animation ergonomics — named clips, Anim.play/Motion.to, frame events, fluent Tween handles (#48) 2026-08-31 16:53:16 +03:00
coverage.md feat(testing): line coverage via --coverage + bin/x test --coverage (#45) 2026-08-31 14:51:14 +03:00
engine-systems.md feat(ecs): engine-owned systems auto-tick user components (#43) 2026-08-31 15:41:44 +03:00
error-handling.md feat(errors): panic(msg) + assert(cond, msg) with file:line — no raw crashes (#8) 2026-08-31 14:33:37 +03:00
input-actions.md feat(input): action maps + deterministic record/replay (#7) 2026-08-31 16:03:56 +03:00
light-ecs-components.md feat(ecs): Light2D/Occluder/Ambient as auto-consumed components (#47) 2026-08-31 15:49:50 +03:00
light-namespace.md feat(rendering): add Light.* — deterministic 2D light accumulation with hard shadows (#4) 2026-08-31 14:07:19 +03:00
light-tiers.md feat(light): render-quality tiers 3-4 — cones, falloff, soft shadows, gels, normals, day/night (#49) 2026-08-31 16:35:41 +03:00
README.md feat(release): SemVer + ludicc --version, changesets, and x release 2026-08-30 23:46:59 +03:00
recover.md feat(errors): recoverable failures as values — try/else over ok/err results (#46) 2026-08-31 15:04:14 +03:00
testing-framework.md feat(testing): built-in test blocks + expect assertions, auto-run with pass/fail (#12) 2026-08-31 14:27:45 +03:00
value-tree.md feat(reflect): generic value tree + Reflect.serialize/apply + JSON bridge (#44) 2026-08-31 15:19:21 +03:00

Changesets

A changeset is one small Markdown file describing a single user-facing change, dropped in this directory. x release consumes every changeset here into a new CHANGELOG.md section, bumps VERSION, and deletes the consumed files.

Format

bump: minor
type: feat
One or more lines describing the change, in the past-agnostic imperative used in
the changelog. Markdown is fine.
  • bump: — major, minor, or patch (SemVer). The release version is bumped by the highest level among the pending changesets (unless x release <level> overrides it).
  • type: — the Conventional Commit type (feat, fix, perf, docs, …); it becomes the bold prefix of the changelog bullet.

Adding one

Create a file with a short, unique name, e.g. changes/regex-namespace.md. Any filename works except this README.md, which the release step always skips.