ludic/examples/networking/net_owner.ludic
Orkuncakilkaya fb728bbefe chore(repo): DX cleanup — categorise examples, text-diffable golden, build/ output (#27 #28 #30)
Repository-cleanup / DX pass folding three tracker items into one coherent
change, verified green end to end (`bin/x test` 49/0, `bin/x selfhost-test`
29/0, `bin/x test-tools` 29/0).

#28 — curate & categorise examples/
- 42 flat entries regrouped into intent-revealing subdirs: games/, rendering/,
  ecs/, events/, networking/, lang/, library/ (was lib/).
- chronorift dir-vs-file duplication resolved: the entry file and its import
  modules now live together under games/chronorift(.ludic).
- Every path reference updated repo-wide (test runner, editor-tool drivers,
  docs/site, design docs).
- New examples/README.md indexes the whole set with run commands.
- Showcase examples without a self-asserting entry (hello, events, net_rt) now
  get a compile-only rot guard in `bin/x test`, so nothing here rots silently.

#30 — text-diffable golden baseline
- The 4 binary selfhost/golden/*.ppm blobs are replaced by a single
  selfhost/golden/renders.sha256 manifest (SHA-256 per render). Hashes are
  byte-identical to the old PPMs, so the baseline is unchanged — only its form.
- game_case now compares framebuffer hashes; a regression shows as a changed
  hex line in review, not "binary files differ".
- New `bin/x golden` regenerates the manifest deliberately (review with
  `git diff selfhost/golden/renders.sha256`).

#27 — PPM & asset handling
- Headless renders now write build/out.ppm, never the repo root; `x app`,
  `x clean`, messaging and .gitignore updated to match. Nothing is written to
  the working root any more.
- Redundant local Kenney .zip archives removed (the art ships extracted;
  .gitignore already excludes *.zip). CC0 License.txt files retained.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-30 18:54:21 +03:00

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# net_owner.ludic — N3: entity ownership (NETWORKING-DESIGN §6.3, §13 N3).
#
# `@Owned` gives a model an owner slot (the @L_owner array). owner(e) reads it,
# set_owner(e, id) assigns it (the authority does), is_owner(e) tests it against
# the local peer id. Ownership gates who may write @Sync(to: owner) fields and who
# runs @Predicted handlers; it is part of the world snapshot, so it round-trips
# through rollback/replication. A fresh entity is unowned (-1). This assigns and
# tests ownership against the default local id (0). Prints -1 / 7 / 0 / 1.
program NetOwner {
@Sync property Pos { x: int = 0, y: int = 0 }
@Owned model Unit { @Sync Pos }
entry {
spawn Unit { Pos { x: 5, y: 6 } }
for (Pos) in query [Pos, {Unit}] {
let e = self()
print(owner(e)) # -1 — fresh entity is unowned
set_owner(e, 7)
print(owner(e)) # 7 — the authority assigned it
print(is_owner(e)) # 0 — local id 0 != 7
set_owner(e, 0)
print(is_owner(e)) # 1 — now the local peer owns it
}
}
}