ludic/docs/language/networking/fn-owner.md
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Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-29 17:53:22 +03:00

1.3 KiB

id name category kind tokens sig tip order
fn-owner owner networking builtin owner owner(target) -> int Read a model instance's network owner id. 50

owner returns the network peer id that owns a model instance, or -1 when the instance is unowned. It only means anything for instances of an @Owned model, which is what gives the model its owner slot (the runtime's @L_owner array); a fresh instance starts unowned until the authority assigns it with set_owner. Ownership is part of the world snapshot, so it round-trips through replication and rollback. Read it when you need the raw id; use is_owner when you only need to know whether the local peer owns the instance.

Parameters:

  • target — the model instance (an entity) whose owner is read
program InspectOwner {
  @Sync property Position { column: int = 0, row: int = 0 }
  @Owned model Player { @Sync Position }

  entry {
    spawn Player { Position { column: 5, row: 6 } }
    for (Position) in query [Position, {Player}] {
      let player_id = self()
      print(owner(player_id))          # -1 — a fresh instance is unowned
      set_owner(player_id, 7)
      print(owner(player_id))          # 7  — the authority assigned peer 7
    }
  }
}