jpmschweitzer/settled-reach
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5 Commits
Author SHA1 Message Date
jpmschweitzerandClaude Opus 4.6 f899624103 feat(simulation): add A* pathfinding and NPC path following 
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>
 2026-02-12 17:51:27 +01:00
jpmschweitzerandClaude Opus 4.6 b9af725b02 fix(simulation): correct tick synchronization in snapshot generation 
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>
 2026-02-11 21:16:04 +01:00
jpmschweitzerandClaude Opus 4.6 7864bfdf7d feat(simulation): add input processing, snapshot gen, and game loop 
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>
 2026-02-11 21:01:28 +01:00
jpmschweitzerandClaude Opus 4.6 862ab9099f feat(simulation): add tile collision system (#236) 
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>
 2026-02-11 19:07:53 +01:00
jpmschweitzerandClaude Opus 4.6 f67caf1986 feat(server): initialize Rust/bevy_ecs simulation server 
Server boilerplate epic (276) complete. Establishes the Rust simulation
server foundation per D-020 (subprocess/IPC architecture).

Structure:
- bevy_ecs 0.18 + bevy_app 0.18, MessagePack serialization (rmp-serde)
- SimulationPlugin with deterministic resources: SimulationTime (D-031),
  SimRng (D-030), InputQueue (D-010)
- Core IPC types: ObserverSnapshot, PlayerInput, SimBridge trait (D-020)
- CauseChain production component for provenance tracking (D-030)
- SimulationTier types with LRU eviction support (D-026)
- NPC 10-axis model components (D-024)
- 15 tests: inline unit tests + integration smoke/serialization tests
- make ci-server passes (clippy, fmt, build, test)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-02-11 16:54:40 +01:00