ludic/examples/lang/scenes.ludic
Orkuncakilkaya 647dfec334 feat(compiler): list literals, typed compound assignment, file:line diagnostics
- `[a, b, c]` list literals (E_LIST → emit_list); static_type learns
  slice-element, `new T`, list, string and literal kinds
- `x op= y` lowers through the same path as `x = x op y` (emit_bin_vals):
  fixed `*=`/`/=` use the Q16.16 64-bit paths, string `+=` concatenates,
  int→long widens; unary `-` keeps a fixed operand's type (arith_ty)
- one `unescape()` table for "strings", 'chars' and `interpolation`;
  `'\''`, `'\\'`, `'\"'` no longer read as 0; unterminated char literals
  and unexpected characters are errors instead of silently skipped
- every diagnostic is `file:line: error: msg` (g_parse_file / g_err_file,
  Node.file + Node.line set by node()); tok_desc() in expectation errors;
  duplicate `function` names and unknown `phase` names are reported in
  source terms (phase_id used to default unknown phases to Overlay)
- interpolation holes skip braces inside string literals
- hand-IR preludes move from the user `@fn_` prefix to `@lp_` so a user
  `is_ws` / `str_eq` / `path_join` no longer collides at link time
- `@ClearColor(expr)` accepts any constant expression; `Os.pid()` added
  (docs page + inventory); `str_starts()` in support/str
- main.ludic: `else if` flag ladder, char literals, stale script comments
- examples/lang/operators.ludic covers all of the above; os.ludic covers
  Os.pid; docs pages for Os.pid and the Overlay phase; ten changesets
- reseeded: selfhost/ludicc.seed.ll is the new compiler's own fixpoint

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-05 01:12:16 +03:00

48 lines
1.5 KiB
Text

# scenes — one active scene at a time, each grouping handlers into layers behind
# an implicit active-scene register (see LANGUAGE.md §"Scenes & layers").
#
# Running it (feed a few keystrokes so the loop ticks) prints:
# 1000 1 101 102 2 3 900 201 900 202 900
# 1000 Boot (a global handler) runs once at Start
# 1 Title is `start`; its `on enter` fires at boot
# 101 frame 1 Update: only Title.Main.Tick runs (Play is not active)
# 102 frame 2 Update: Tick reaches 2 -> `become Play`…
# 2 3 …which runs Title's `on exit` then Play's `on enter`
# 900 Play renders the same frame it is entered (Hud.Draw)
# 201 900 frame 3: Play.World.Step, then Hud.Draw
# 202 900 frame 4: Step reaches 2 -> quit(); Hud.Draw paints the last frame
#
# bin/x game-build bin/ludicc examples/lang/scenes.ludic /tmp/scenes
# printf 'aaaa' | /tmp/scenes
program SceneDemo {
var counter: int = 0
handler Boot phase Start { counter = 0; print(1000) }
scene Title start {
on enter { print(1) }
on exit { print(2) }
layer Main {
handler Tick phase Update {
counter += 1
print(100 + counter)
if counter >= 2 { become Play }
}
}
}
scene Play {
on enter { print(3); counter = 0 }
on exit { print(4) }
layer World {
handler Step phase Update {
counter += 1
print(200 + counter)
if counter >= 2 { quit() }
}
}
layer Hud {
handler Draw phase Render { print(900) }
}
}
}