ludic/examples/world_mixed.ludic
Orkuncakilkaya bca8f126fc Networking N2–N6, and a fully C-free toolchain
Implement the rest of NETWORKING-DESIGN.md (N2–N6) and eliminate every
`.c` file from the repo. clang remains only the LLVM-IR assembler; no C
is compiled anywhere.

Networking (selfhost/emit_net.ludic + parser/emit changes):
- N2 @Sync: per-model serialize/apply + by-kind dispatchers; POD-scalar
  compile error and empty-participation warning; selective replication.
- N3 @Owned: @L_owner array + owner/set_owner/is_owner; owners snapshot.
- N4 @ToServer/@ToClients remote events: framed net_send + net_pump re-emit.
- N5 @Server/@Predicted role guards + drivable sim (tick_fixed/tick_render,
  entry-owns-the-loop).
- Built-in loopback transport so multiplayer runs with zero foreign code;
  extern fn net_send/net_poll still overrides it for a real socket.
- N6 blessed runtime (examples/net_rt.ludic) + end-to-end demo (net_demo).
- Fix: llty("entity") is now i32 (entities are i32 handles), so let e = self().

C elimination:
- Networking + foreign-mod-ABI tests rewritten as self-contained pure-Ludic
  programs (examples/net_*, world_*, mod_events, scoped); tests/ removed.
- Reflection ABI exposed to Ludic as world_* builtins (Ludic-to-Ludic modding).
- Formatter rewritten C→Ludic: tools/ludic-tools/fmt.ludic.
- Language server rewritten C→Ludic: tools/ludic-tools/lsp.ludic (lexer, index
  parser, cross-file workspace resolver, JSON, all LSP handlers).
- Obsolete migrate_*.c codemods deleted; ludic_syntax.h kept as vocabulary data.

Suites: ./test.sh 44/44, ./tools/test-tools.sh 28/28 (LSP 42/42), fixpoint holds.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-29 15:08:23 +03:00

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# world_mixed.ludic — EV2b reflection: get/set use real struct offsets, not a
# field*4 assumption (replaces tests/mod_c/world_mixed.c). Slot's `qty` sits after
# a `ptr` field, so its byte offset is 8, not 4; writing qty=99 by name and reading
# it back proves the world table addresses fields by their true layout. Prints 99.
program WorldMixed {
property Slot { ref: ptr = null, qty: int = 0 }
model Item { Slot }
@Public @OnSpawn(Item) handler Born { } # makes it a modding program
entry {
let e = world_spawn(world_model_id("Item"))
let S = world_prop_id("Slot")
let qty = world_field_id(S, "qty") # field index 1, after the ptr
world_set(e, S, qty, 99)
print(world_get(e, S, qty)) # 99 iff the offset is 8, not 4
}
}