Per-entity Component attached to PlayerCharacter instead of global
Resource. Makes the interaction buffer multiplayer-ready (D-009) —
each observer gets their own buffer without pipeline refactoring.
Updated all 8 files touching the buffer: system signatures, player
spawn bundles, and ~30 test spawn sites.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Replace silent Entity::to_bits() fallbacks with tracing::error in
observer.rs and interaction.rs (makes unregistered entities loud)
- Add PROTOCOL_VERSION constant to types.rs, use in observer snapshot
- Document single-observer assumption on NearbyInteractionBuffer
- Document proximity-only (no LOS) limitation on compute_nearby_interactions
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Implement compute_nearby_interactions system that detects entities
within close (≤2) and mid (≤5) Manhattan distance, computes
available verbs per D-060 spec. NPCs get Talk+Observe at close
range, Observe-only at mid range; PersonOfInterest flips priority.
Objects get Examine. Results populate nearby_interactions[] on
ObserverSnapshot v4. Bump protocol version 3→4. Implements #404.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace binary paused flag with TickRate enum (Full/Half/Paused)
per D-052. Full rate advances every frame, Half every 2 frames
via fractional accumulation, Paused blocks all advances. Add
SetTickRate player action for client-driven rate changes.
Implements ticket #406.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Fix NpcPlugin system ordering: .before(compute_paths) instead of
.after(advance_tick) so PathRequests are picked up same frame
- Fix stale doc comment in interpretation.rs: system runs BEFORE
knowledge events, not after
- Add TODO(v0.2) on RelationshipGraph about information boundary
limitation for multiplayer
- Document cardinal-only movement as deliberate v0.1 choice
- Add comment on manhattan_distance u32::MAX fallback for cross-z
- Pin pathfinding crate to 4.11
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Implements tickets #237 and #238 for Sprint 3:
- Add pathfinding crate dependency for A* algorithm
- PathRequest component triggers compute_paths system which uses
cardinal-neighbor A* with manhattan distance heuristic
- ComputedPath component with step navigation (next_step, advance,
is_complete) and PathBlocked marker for no-route cases
- MovementSpeed component throttles NPC movement (ticks_per_step)
- follow_paths system advances NPCs along computed paths, creating
MoveIntent per step; cleanup_path_blocked removes markers after
one tick
- System ordering: input → compute_paths → follow_paths →
validate_movement → cleanup_path_blocked → advance_tick
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Implement direction-dependent visibility modulation per D-015.
Forward cone (~120 deg) at full range, peripheral (~180 deg each side)
at reduced range, blind spot (~60 deg behind) excluded. Facing component
updated on player movement via facing_from_delta.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Snapshot for tick N should show state at END of tick N. Reorder systems
so generate_snapshot runs after validate_movement but before
advance_tick. Previously snapshot.tick was the incremented tick,
not the tick whose inputs were processed. Also fix main.rs accept
error to log address context before exiting.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Implements the full server-side tick pipeline:
- process_player_input drains InputQueue, converts PlayerActions to
MoveIntent components or pause/unpause toggles
- generate_snapshot builds ObserverSnapshot from ECS state with
render coordinate conversion
- receive_bridge_inputs/send_bridge_snapshot handle bridge I/O with
graceful disconnect detection via ServerRunning resource
- main.rs now accepts TCP connections and runs a proper game loop
- PlayerCharacter marker, Player EntityKind, SnapshotBuffer resource
Closes server side of #81, #82, #83.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add diagonal PlayerAction variants (MoveNortheast, MoveNorthwest,
MoveSoutheast, MoveSouthwest) and TilePosition::all_neighbors()
returning all 8 surrounding tiles. Genre-expected for immersive sim.
Establishes the movement pattern before pathfinding is built on top.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
TilePosition component with discrete grid coordinates, flat-storage
WalkabilityMap resource with O(1) can_move_to() lookup, MoveIntent
component and validate_movement system. Movement validated against
walkability map each tick, blocking all NPC and player movement
through unwalkable tiles. 11 unit tests + 1 integration test.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
