feat(simulation): Sprint 19 — 7 server systems

Protocol handshake (#555): HandshakeMessage as first IPC frame,
HandshakeState resource, forward-compatible input handling.

State serialization (#96): serialize_npc_to_frozen/deserialize with
full D-024 axis coverage (10 new optional fields on NpcSaveState).

Scope tags (#98): ScopeTagKind enum, ScopePinned marker, automatic
assignment from KnowledgeGraph and RelationshipGraph.

Timestamp eviction (#97): LastInteractionTick, SimSpacePressure,
BinaryHeap LRU eviction respecting ScopePinned entities.

Save/load (#553): save_to_file/load_from_file via MessagePack,
SaveGame/LoadGame IPC commands, SaveLoadResultWire on snapshot.

Test infrastructure (#200): Layer 3 integration test entry point,
three-layer architecture documented per D-030.

Information boundary tests (#272): 4 negative tests proving no
passive KG leakage, LOS fog holds, tier boundary holds, save
isolation per NPC.

1063 tests passing, 0 failures.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-02-25 12:13:03 +01:00
co-authored by Claude Opus 4.6
parent 0dd33690f7
commit 6ed8d11502
22 changed files with 2561 additions and 35 deletions
+10
View File
@@ -24,3 +24,13 @@ gauntlet = []
[dev-dependencies]
serde_json = "1"
# ---------------------------------------------------------------------------
# Explicit test target for the Layer 3 integration module (D-030, ticket #200).
# tests/integration/mod.rs cannot be auto-discovered by cargo (only top-level
# *.rs files in tests/ are auto-discovered). This declaration makes it a named
# test binary: `cargo test --test integration_layer3`.
# ---------------------------------------------------------------------------
[[test]]
name = "integration_layer3"
path = "tests/integration/mod.rs"
+15
View File
@@ -80,6 +80,21 @@ impl LocalBridge {
}
impl SimBridge for LocalBridge {
fn send_handshake(&self) -> Result<(), BridgeError> {
use super::types::{HandshakeMessage, PROTOCOL_VERSION};
let msg = HandshakeMessage {
protocol_version: PROTOCOL_VERSION,
};
let payload = rmp_serde::to_vec_named(&msg)?;
let mut writer = self
.writer
.lock()
.map_err(|e| BridgeError::MutexPoisoned(format!("writer: {}", e)))?;
write_framed(writer.get_mut(), &payload)?;
tracing::info!("sent handshake: protocol_version={}", PROTOCOL_VERSION);
Ok(())
}
fn send_snapshot(&self, snapshot: &ObserverSnapshot) -> Result<(), BridgeError> {
let payload = rmp_serde::to_vec_named(snapshot)?;
+35
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@@ -35,6 +35,11 @@ pub enum BridgeError {
/// Abstracts transport layer (D-020)
/// Implemented by LocalBridge (stdio) and future NetworkBridge
pub trait SimBridge: Send + Sync {
/// Send the protocol handshake as the first framed message (#555).
/// Must be called exactly once, immediately after connection, before
/// any ObserverSnapshot is sent.
fn send_handshake(&self) -> Result<(), BridgeError>;
/// Send an observer snapshot to the client
fn send_snapshot(&self, snapshot: &ObserverSnapshot) -> Result<(), BridgeError>;
@@ -55,6 +60,10 @@ impl BridgeResource {
}
}
pub fn send_handshake(&self) -> Result<(), BridgeError> {
self.inner.send_handshake()
}
pub fn send_snapshot(&self, snapshot: &ObserverSnapshot) -> Result<(), BridgeError> {
self.inner.send_snapshot(snapshot)
}
@@ -64,15 +73,40 @@ impl BridgeResource {
}
}
/// Tracks whether the protocol handshake has been sent (#555).
/// Inserted by BridgePlugin as Pending. Set to Complete in main.rs after
/// `send_handshake()` succeeds. `receive_bridge_inputs` logs a warning
/// if inputs arrive while still Pending.
#[derive(Resource, Debug, Clone, Copy, PartialEq, Eq)]
pub enum HandshakeState {
/// Handshake not yet sent. Inputs arriving in this state trigger a warning.
Pending,
/// Handshake sent. Normal operation.
Complete,
}
impl Default for HandshakeState {
fn default() -> Self {
Self::Pending
}
}
/// Receive inputs from bridge and push to InputQueue
pub fn receive_bridge_inputs(
bridge: Option<Res<BridgeResource>>,
mut input_queue: ResMut<crate::simulation::input::InputQueue>,
mut running: ResMut<ServerRunning>,
handshake: Res<HandshakeState>,
) {
let Some(bridge) = bridge else { return };
match bridge.receive_inputs() {
Ok(inputs) => {
if !inputs.is_empty() && *handshake == HandshakeState::Pending {
tracing::warn!(
"Received {} input(s) before handshake completed — processing anyway (forward-compatible)",
inputs.len()
);
}
for input in &inputs {
tracing::trace!(
"Received input: tick={} action={:?}",
@@ -156,6 +190,7 @@ impl Plugin for BridgePlugin {
fn build(&self, app: &mut App) {
app.init_resource::<SnapshotBuffer>()
.init_resource::<ServerRunning>()
.init_resource::<HandshakeState>()
.init_resource::<crate::perception::query::VisibilityGeometry>()
.init_resource::<crate::perception::query::ActivePerceptionMode>()
.add_systems(
+20
View File
@@ -129,6 +129,26 @@ impl TcpBridge {
}
impl SimBridge for TcpBridge {
fn send_handshake(&self) -> Result<(), BridgeError> {
use super::types::{HandshakeMessage, PROTOCOL_VERSION};
let msg = HandshakeMessage {
protocol_version: PROTOCOL_VERSION,
};
let payload = rmp_serde::to_vec_named(&msg)?;
let mut writer = self
.writer
.lock()
.map_err(|e| BridgeError::MutexPoisoned(format!("writer: {}", e)))?;
// Toggle to blocking for reliable handshake delivery.
let stream = writer.get_mut();
stream.set_nonblocking(false).map_err(BridgeError::Io)?;
let result = write_framed(stream, &payload);
stream.set_nonblocking(true).map_err(BridgeError::Io)?;
result?;
tracing::info!("sent handshake: protocol_version={}", PROTOCOL_VERSION);
Ok(())
}
fn send_snapshot(&self, snapshot: &ObserverSnapshot) -> Result<(), BridgeError> {
let payload = rmp_serde::to_vec_named(snapshot)?;
+2 -2
View File
@@ -306,13 +306,13 @@ mod tests {
conversation_events: vec![],
conversation_ended: vec![],
follow_state: None,
examine_result: None,
character_pressure: None,
sound_events: vec![],
rng_seed: None,
poi_list: vec![],
examine_result: None,
player_knowledge: None,
save_result: None,
}
}
@@ -441,13 +441,13 @@ mod tests {
conversation_events: vec![],
conversation_ended: vec![],
follow_state: None,
examine_result: None,
character_pressure: None,
sound_events: vec![],
rng_seed: None,
poi_list: vec![],
examine_result: None,
player_knowledge: None,
save_result: None,
};
let text = format_snapshot_text(&snap);
assert!(text.contains("Tick 0"));
+81 -5
View File
@@ -19,6 +19,16 @@ pub use crate::simulation::time::{DayPhase, TickRate};
/// period, then the default is removed once both sides are updated.
pub const PROTOCOL_VERSION: u8 = 14;
/// Handshake message sent as the very first framed message after connection (#555).
/// Client reads this before entering the normal tick loop and validates
/// `protocol_version` against its own `PROTOCOL_VERSION` constant.
/// Wire format: MessagePack, same 4-byte length-prefixed framing as ObserverSnapshot.
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
pub struct HandshakeMessage {
/// Must match client's PROTOCOL_VERSION or the client should disconnect.
pub protocol_version: u8,
}
/// The ONLY data structure crossing the client-server boundary (D-020)
/// Contains all information visible to the observer at a given tick.
///
@@ -39,6 +49,7 @@ pub const PROTOCOL_VERSION: u8 = 14;
/// v14 adds: poi_list (#151, discovered POIs for minimap rendering),
/// examine_result (#242, character-filtered examine observation text),
/// player_knowledge (#264, partial KG dump for journal/knowledge panel).
/// v15 adds: save_result (#553, save/load operation result for client confirmation).
/// Future fields: ambient sound events, HUD state (D-020 expansion).
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ObserverSnapshot {
@@ -110,11 +121,6 @@ pub struct ObserverSnapshot {
/// Client shows follow indicator with distance, LOS, and tension.
#[serde(default)]
pub follow_state: Option<crate::simulation::follow::FollowStateWire>,
/// Examine result from Examine verb interaction (#242).
/// Present when the player examined an NPC or object this tick.
/// Client displays character-filtered detail text in an observation panel.
#[serde(default)]
pub examine_result: Option<crate::simulation::examine::ExamineResultEvent>,
/// Character pressure state for client HUD widget (#248).
/// Present when pressure is non-zero. Client renders tension indicator.
#[serde(default)]
@@ -140,6 +146,11 @@ pub struct ObserverSnapshot {
/// Client renders as a read-only journal grouped by entity.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub player_knowledge: Option<PlayerKnowledgeWire>,
/// Result of the most recently completed save or load (#553, D-085).
/// Present for exactly one tick after the operation completes.
/// Client shows a confirmation toast (success) or error modal (failure).
#[serde(default, skip_serializing_if = "Option::is_none")]
pub save_result: Option<SaveLoadResultWire>,
}
/// Game time data for client display (D-031)
@@ -414,6 +425,14 @@ pub enum PlayerAction {
target_entity_id: u64,
response_id: String,
},
/// Save the current game state to `path` (#553, D-085).
/// Client sends this when the player activates the save UI.
/// Server executes save_to_file and sends SaveLoadResultWire confirmation.
SaveGame { path: String },
/// Load a previously saved game from `path` (#553, D-085).
/// Client sends this when the player selects a save file to load.
/// Server executes load_from_file and sends SaveLoadResultWire confirmation.
LoadGame { path: String },
}
impl PlayerAction {
@@ -642,8 +661,65 @@ pub struct KnownFactWire {
pub acquired_tick: u64,
}
/// Save/load operation result for client confirmation (#553, D-085).
///
/// Included in `ObserverSnapshot.save_result` for exactly one tick after the
/// operation completes. `success=false` carries a human-readable `error` string.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SaveLoadResultWire {
/// Whether the save or load succeeded.
pub success: bool,
/// "save" or "load" — identifies which operation completed.
pub kind: String,
/// Error message if `success` is false. None on success.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub error: Option<String>,
}
/// Snapshot buffer resource for staging outgoing ObserverSnapshots
#[derive(Resource, Debug, Default)]
pub struct SnapshotBuffer {
pub snapshot: Option<ObserverSnapshot>,
/// Pending save/load result, consumed once by `compute_observer_snapshot` (#553).
pub pending_save_result: Option<SaveLoadResultWire>,
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn handshake_message_roundtrip() {
let msg = HandshakeMessage {
protocol_version: PROTOCOL_VERSION,
};
let bytes = rmp_serde::to_vec_named(&msg).expect("serialize");
let decoded: HandshakeMessage = rmp_serde::from_slice(&bytes).expect("deserialize");
assert_eq!(decoded, msg);
assert_eq!(decoded.protocol_version, PROTOCOL_VERSION);
}
#[test]
fn handshake_message_rejects_wrong_version() {
let msg = HandshakeMessage {
protocol_version: PROTOCOL_VERSION,
};
let bytes = rmp_serde::to_vec_named(&msg).expect("serialize");
let decoded: HandshakeMessage = rmp_serde::from_slice(&bytes).expect("deserialize");
// Simulate client-side validation: version mismatch should be detectable
let wrong_version = PROTOCOL_VERSION.wrapping_add(1);
assert_ne!(decoded.protocol_version, wrong_version);
}
#[test]
fn handshake_is_distinct_from_snapshot() {
// HandshakeMessage and ObserverSnapshot are different types on the wire.
// A HandshakeMessage should NOT deserialize as an ObserverSnapshot.
let msg = HandshakeMessage {
protocol_version: PROTOCOL_VERSION,
};
let bytes = rmp_serde::to_vec_named(&msg).expect("serialize");
let result = rmp_serde::from_slice::<ObserverSnapshot>(&bytes);
assert!(result.is_err(), "HandshakeMessage must not deserialize as ObserverSnapshot");
}
}
+32
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@@ -83,6 +83,38 @@ impl EntityRegistry {
self.next_id = target;
}
/// Register an entity with a specific pre-existing StableId (used during save/load).
///
/// Unlike `register`, this does NOT advance `next_id`. After bulk-registering
/// all restored entities, call `advance_past(max_stable_id)` so future `register()`
/// calls produce IDs that don't conflict with the restored set.
///
/// No-op if the entity is already mapped to the same `stable_id`.
/// Panics in debug builds if `stable_id` is already mapped to a different entity.
pub fn register_existing(&mut self, entity: Entity, stable_id: StableId) {
if let Some(&existing) = self.by_stable_id.get(&stable_id) {
debug_assert_eq!(
existing, entity,
"register_existing: StableId {:?} already mapped to a different entity",
stable_id
);
return;
}
self.by_stable_id.insert(stable_id, entity);
self.by_entity.insert(entity, stable_id);
}
/// Advance `next_id` past `id` so future `register()` calls don't conflict.
///
/// Unlike `reserve_up_to`, this never panics: if the counter is already past `id`,
/// this is a no-op. Use after `register_existing` bulk-load to position the counter.
pub fn advance_past(&mut self, id: u64) {
let target = id.saturating_add(1);
if target > self.next_id {
self.next_id = target;
}
}
/// Number of registered entities.
pub fn len(&self) -> usize {
self.by_entity.len()
+13 -2
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@@ -11,7 +11,7 @@ use bevy_app::prelude::*;
use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
use settled_reach_server::bridge::tcp::TcpBridge;
use settled_reach_server::bridge::{BridgePlugin, BridgeResource, ServerRunning};
use settled_reach_server::bridge::{BridgePlugin, BridgeResource, HandshakeState, ServerRunning};
use settled_reach_server::simulation::SimulationPlugin;
fn main() {
@@ -121,7 +121,17 @@ fn main() {
tracing::error!("Failed to accept: {}", e);
std::process::exit(1);
});
tracing::info!("Client connected, initializing simulation");
tracing::info!("Client connected, sending protocol handshake");
// Protocol handshake: first framed message on the wire (#555).
// Client reads this and validates protocol_version before sending any input.
use settled_reach_server::bridge::SimBridge;
bridge.send_handshake().unwrap_or_else(|e| {
tracing::error!("Failed to send handshake: {}", e);
std::process::exit(1);
});
tracing::info!("Handshake sent, initializing simulation");
// RNG seed: test-mode defaults to 42 for deterministic replay
let seed = seed_flag.unwrap_or(if test_mode { 42 } else { 0 });
@@ -138,6 +148,7 @@ fn main() {
});
app.add_plugins(settled_reach_server::content::ContentPlugin);
app.insert_resource(BridgeResource::new(bridge));
app.insert_resource(HandshakeState::Complete);
// Override SimRng with the chosen seed (SimulationPlugin defaults to seed 0)
app.insert_resource(settled_reach_server::simulation::rng::SimRng::new(seed));
+11 -2
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@@ -378,6 +378,9 @@ pub fn compute_observer_snapshot(
None
};
// Consume pending save/load result for this tick (#553).
let save_result = buffer.pending_save_result.take();
buffer.snapshot = Some(ObserverSnapshot {
version: crate::bridge::types::PROTOCOL_VERSION,
tick: time.tick,
@@ -396,15 +399,21 @@ pub fn compute_observer_snapshot(
conversation_events,
conversation_ended,
follow_state,
examine_result,
character_pressure: pressure_query.iter().next().map(|p| {
crate::simulation::pressure::CharacterPressureWire::from(p)
}),
sound_events,
rng_seed: sim_rng.as_deref().map(|r| r.seed()),
poi_list,
examine_result: None, // Populated by examine system when #242 lands
examine_result: examine_result.map(|e| {
crate::bridge::types::ExamineResultWire {
entity_id: e.target_entity_id,
text: e.text,
confidence: crate::bridge::types::KnowledgeConfidence::Direct,
}
}),
player_knowledge,
save_result,
});
}
+30 -4
View File
@@ -9,6 +9,7 @@ use crate::simulation::inventory::{
find_next_slot, occupied_slots_for, CarriedBy, InventorySlot, ItemName, MAX_INVENTORY_SLOTS,
};
use crate::simulation::movement::{MoveIntent, PlayerCharacter, TilePosition};
use crate::simulation::save_io::{SaveLoadCommand, SaveLoadPending};
use crate::simulation::stance::{PlayerMoveCooldown, Stance};
use crate::simulation::time::{SimulationTime, TickRate};
use crate::test_world::reset::{RoomResetTrigger, RoomSnapshots};
@@ -74,7 +75,8 @@ impl InputQueue {
}
/// Drains InputQueue for the current tick, converts PlayerActions to ECS components.
/// Handles stance toggling (D-053), movement cooldown, and Take/Place verbs (#424).
/// Handles stance toggling (D-053), movement cooldown, Take/Place verbs (#424),
/// and save/load commands (#553).
#[allow(clippy::type_complexity, clippy::too_many_arguments)]
pub fn process_player_input(
mut input_queue: ResMut<InputQueue>,
@@ -94,6 +96,7 @@ pub fn process_player_input(
all_positions: Query<&TilePosition>,
reset_triggers: Query<&RoomResetTrigger>,
mut room_snapshots: Option<ResMut<RoomSnapshots>>,
mut save_load: Option<ResMut<SaveLoadPending>>,
) {
let current_tick = time.tick;
let paused = time.paused();
@@ -104,12 +107,15 @@ pub fn process_player_input(
for input in inputs {
// Discard all gameplay actions while paused (D-052, R2-OQ-01).
// Only Pause/Unpause/TeleportToHub are processed — everything else is discarded.
// TeleportToHub is exempted because it's a Gauntlet QA action (#491).
// SaveGame/LoadGame are also exempted — saving while paused is valid (#553).
if paused
&& !matches!(
input.action,
PlayerAction::Pause | PlayerAction::Unpause | PlayerAction::TeleportToHub
PlayerAction::Pause
| PlayerAction::Unpause
| PlayerAction::TeleportToHub
| PlayerAction::SaveGame { .. }
| PlayerAction::LoadGame { .. }
)
{
continue;
@@ -306,6 +312,26 @@ pub fn process_player_input(
PlayerAction::UsePerceptionMode(ref mode) => {
tracing::trace!("UsePerceptionMode({}) — no-op for Sprint 1", mode);
}
PlayerAction::SaveGame { ref path } => {
if let Some(ref mut sl) = save_load {
sl.pending = Some(SaveLoadCommand::Save {
path: std::path::PathBuf::from(path),
});
tracing::info!("SaveGame queued: {:?}", path);
} else {
tracing::warn!("SaveGame received but SaveLoadPending resource not registered");
}
}
PlayerAction::LoadGame { ref path } => {
if let Some(ref mut sl) = save_load {
sl.pending = Some(SaveLoadCommand::Load {
path: std::path::PathBuf::from(path),
});
tracing::info!("LoadGame queued: {:?}", path);
} else {
tracing::warn!("LoadGame received but SaveLoadPending resource not registered");
}
}
}
}
+8
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@@ -22,6 +22,7 @@ pub mod poi;
pub mod poi_discovery;
pub mod pressure;
pub mod rng;
pub mod save_io;
pub mod save_state;
pub mod sound;
pub mod spatial;
@@ -43,6 +44,7 @@ impl Plugin for SimulationPlugin {
app.init_resource::<time::SimulationTime>()
.insert_resource(rng::SimRng::new(0))
.init_resource::<input::InputQueue>()
.init_resource::<save_io::SaveLoadPending>()
.init_resource::<crate::knowledge::EntityRegistry>()
.init_resource::<sound::SoundEventQueue>()
.init_resource::<spatial::NaiveSpatialIndex>()
@@ -61,6 +63,12 @@ impl Plugin for SimulationPlugin {
Update,
(
input::process_player_input,
// execute_save_load is an exclusive system (takes &mut World).
// Must run after process_player_input (which queues the command)
// and before compute_observer_snapshot (which consumes the result).
save_io::execute_save_load
.after(input::process_player_input)
.before(crate::perception::observer::compute_observer_snapshot),
pathfinding::compute_paths.after(input::process_player_input),
path_follow::follow_paths.after(pathfinding::compute_paths),
movement::validate_movement.after(path_follow::follow_paths),
+629
View File
@@ -0,0 +1,629 @@
// Save/load ECS extraction (#553)
// Implements D-020 MessagePack format for save files, D-010 determinism.
//
// Two entry points:
// save_to_file: queries ECS, builds SaveStateV1, writes MessagePack to path.
// load_from_file: reads path, deserialises SaveStateV1, re-injects ECS state.
//
// IPC: SaveGame / LoadGame PlayerAction variants queue commands here.
// execute_save_load: exclusive system that drains the queue and writes the result
// to SnapshotBuffer.pending_save_result for client feedback.
use std::path::{Path, PathBuf};
use bevy_ecs::prelude::*;
use thiserror::Error;
use crate::bridge::types::SaveLoadResultWire;
use crate::bridge::types::SnapshotBuffer;
use crate::knowledge::graph::KnowledgeGraph;
use crate::knowledge::registry::EntityRegistry;
use crate::npc::Npc;
use crate::npc::relationships::RelationshipGraph;
use crate::simulation::movement::PlayerCharacter;
use crate::simulation::rng::SimRng;
use crate::simulation::save_state::{
deserialize_npc_from_frozen, serialize_npc_to_frozen, SaveStateV1, SAVE_FORMAT_VERSION,
};
use crate::simulation::tier::BackgroundSim;
use crate::simulation::time::SimulationTime;
/// Errors from save/load operations (#553).
#[derive(Debug, Error)]
pub enum SaveLoadError {
#[error("I/O error: {0}")]
Io(String),
#[error("serialization error: {0}")]
Serialize(String),
#[error("deserialization error: {0}")]
Deserialize(String),
#[error("format version mismatch: expected {expected}, found {found}")]
VersionMismatch { expected: u8, found: u8 },
}
/// A queued save or load command (#553).
#[derive(Debug, Clone)]
pub enum SaveLoadCommand {
Save { path: PathBuf },
Load { path: PathBuf },
}
/// Pending save/load command resource (#553).
///
/// `process_player_input` queues commands here when it encounters
/// `PlayerAction::SaveGame` or `PlayerAction::LoadGame`. The
/// `execute_save_load` exclusive system drains this queue each tick.
#[derive(Resource, Debug, Default)]
pub struct SaveLoadPending {
/// Pending command (at most one; new commands overwrite pending ones).
pub pending: Option<SaveLoadCommand>,
}
/// Extract world state into `SaveStateV1` and write MessagePack bytes to `path` (#553).
///
/// Queries all NPC entities, the player knowledge graph, global relationship graph,
/// simulation time, and RNG seed. Builds `SaveStateV1` and writes to disk.
///
/// NPC states are sorted by `stable_id` ascending for determinism (D-010).
/// NPCs without `StableEntityId` trigger a panic (caller invariant — all live
/// NPCs must be registered before save).
///
/// # Errors
/// `SaveLoadError::Io` on filesystem failure.
/// `SaveLoadError::Serialize` on MessagePack encoding failure.
pub fn save_to_file(path: &Path, world: &mut World) -> Result<(), SaveLoadError> {
// Simulation clock
let (tick, tick_rate) = {
let t = world.resource::<SimulationTime>();
(t.tick, t.tick_rate)
};
// RNG seed for deterministic replay (D-010)
let seed = world.resource::<SimRng>().seed();
// Player knowledge graph — the observer's epistemics at save time
let player_knowledge = {
let mut q = world.query_filtered::<&KnowledgeGraph, With<PlayerCharacter>>();
q.single(world)
.cloned()
.unwrap_or_else(|_| KnowledgeGraph::new())
};
// Global NPC social web
let relationship_graph = world.resource::<RelationshipGraph>().clone();
// Per-NPC states: collect then sort by stable_id (D-010 determinism)
let npc_entities: Vec<Entity> = {
let mut q = world.query_filtered::<Entity, With<Npc>>();
q.iter(world).collect()
};
let mut npc_states: Vec<_> = npc_entities
.iter()
.map(|&entity| serialize_npc_to_frozen(entity, world))
.collect();
npc_states.sort_by_key(|s| s.stable_id.0);
let npc_count = npc_states.len();
let state = SaveStateV1 {
format_version: SAVE_FORMAT_VERSION,
tick,
tick_rate,
seed,
player_knowledge,
relationship_graph,
npc_states,
};
let bytes = state
.to_bytes()
.map_err(|e| SaveLoadError::Serialize(e.to_string()))?;
std::fs::write(path, &bytes).map_err(|e| SaveLoadError::Io(e.to_string()))?;
tracing::info!(
"save_to_file: {:?} (tick={}, npcs={}, {} bytes)",
path,
tick,
npc_count,
bytes.len()
);
Ok(())
}
/// Read `path`, deserialise `SaveStateV1`, and re-inject state into the ECS (#553).
///
/// Steps:
/// 1. Read and deserialise bytes; reject if `format_version != SAVE_FORMAT_VERSION`.
/// 2. Despawn all existing NPC entities and unregister them from `EntityRegistry`.
/// 3. Re-spawn each NPC via `deserialize_npc_from_frozen`; register with
/// `register_existing`; insert `BackgroundSim` tier marker.
/// 4. Advance `EntityRegistry` counter past all restored IDs.
/// 5. Restore `RelationshipGraph`, `SimulationTime`, and `SimRng` resources.
/// 6. Update the player entity's `KnowledgeGraph` if a player entity exists.
///
/// **Gotcha (D-010):** Bevy `Entity` handles are generational. `NpcSaveState` uses
/// `StableId(u64)` throughout — `EntityRegistry` maps restored `StableId`s to the
/// new `Entity` handles after re-spawn.
///
/// # Errors
/// `SaveLoadError::Io` on filesystem failure.
/// `SaveLoadError::Deserialize` on MessagePack decoding failure.
/// `SaveLoadError::VersionMismatch` when the save file predates the current schema.
pub fn load_from_file(path: &Path, world: &mut World) -> Result<(), SaveLoadError> {
let bytes = std::fs::read(path).map_err(|e| SaveLoadError::Io(e.to_string()))?;
let state =
SaveStateV1::from_bytes(&bytes).map_err(|e| SaveLoadError::Deserialize(e.to_string()))?;
if state.format_version != SAVE_FORMAT_VERSION {
return Err(SaveLoadError::VersionMismatch {
expected: SAVE_FORMAT_VERSION,
found: state.format_version,
});
}
let npc_count = state.npc_states.len();
// Despawn all existing NPC entities and clear their registry entries.
let npc_entities: Vec<Entity> = {
let mut q = world.query_filtered::<Entity, With<Npc>>();
q.iter(world).collect()
};
for entity in npc_entities {
world.resource_mut::<EntityRegistry>().unregister(entity);
world.despawn(entity);
}
// Track the highest restored StableId so we can advance the counter.
let mut max_id: u64 = 0;
// Re-spawn NPCs, assign tier marker, register pre-existing StableIds.
for npc_state in &state.npc_states {
let entity = deserialize_npc_from_frozen(npc_state, world);
// Loaded NPCs start in BackgroundSim; the distance system promotes as needed.
world.entity_mut(entity).insert(BackgroundSim);
let stable_id = npc_state.stable_id;
world
.resource_mut::<EntityRegistry>()
.register_existing(entity, stable_id);
max_id = max_id.max(stable_id.0);
}
// Advance the registry counter past all restored IDs so future register()
// calls produce non-conflicting IDs.
if npc_count > 0 {
world.resource_mut::<EntityRegistry>().advance_past(max_id);
}
// Restore simulation resources.
world.insert_resource(state.relationship_graph);
{
let mut t = world.resource_mut::<SimulationTime>();
t.tick = state.tick;
t.tick_rate = state.tick_rate;
}
world.insert_resource(SimRng::new(state.seed));
// Update the player entity's KnowledgeGraph if a player exists.
let player_entity = {
let mut q = world.query_filtered::<Entity, With<PlayerCharacter>>();
q.single(world).ok()
};
if let Some(player_entity) = player_entity {
world
.entity_mut(player_entity)
.insert(state.player_knowledge);
}
tracing::info!(
"load_from_file: {:?} (tick={}, npcs={})",
path,
state.tick,
npc_count,
);
Ok(())
}
/// Exclusive system: drain `SaveLoadPending` and execute queued save/load (#553).
///
/// Runs each tick, after `process_player_input`. If a command is pending,
/// executes it and writes `SaveLoadResultWire` to `SnapshotBuffer.pending_save_result`
/// for consumption by `compute_observer_snapshot` the same tick.
pub fn execute_save_load(world: &mut World) {
// Take the pending command (releases the borrow before we use world again).
let command = {
let mut pending = world.resource_mut::<SaveLoadPending>();
pending.pending.take()
};
let Some(command) = command else {
return;
};
let (kind_str, result) = match &command {
SaveLoadCommand::Save { path } => {
let r = save_to_file(path, world);
("save", r)
}
SaveLoadCommand::Load { path } => {
let r = load_from_file(path, world);
("load", r)
}
};
let wire_result = match result {
Ok(()) => {
tracing::info!("execute_save_load: {} completed", kind_str);
SaveLoadResultWire {
success: true,
kind: kind_str.to_string(),
error: None,
}
}
Err(ref e) => {
tracing::error!("execute_save_load: {} failed: {}", kind_str, e);
SaveLoadResultWire {
success: false,
kind: kind_str.to_string(),
error: Some(e.to_string()),
}
}
};
// Write result to SnapshotBuffer for client feedback (one tick only — consumed by
// compute_observer_snapshot via pending_save_result.take()).
if let Some(mut buf) = world.get_resource_mut::<SnapshotBuffer>() {
buf.pending_save_result = Some(wire_result);
}
}
// ---------------------------------------------------------------------------
// Tests
// ---------------------------------------------------------------------------
#[cfg(test)]
mod tests {
use super::*;
use crate::knowledge::graph::KnowledgeGraph;
use crate::knowledge::registry::{EntityRegistry, StableEntityId};
use crate::knowledge::types::StableId;
use crate::npc::Npc;
use crate::npc::relationships::RelationshipGraph;
use crate::simulation::movement::TilePosition;
use crate::simulation::rng::SimRng;
use crate::simulation::save_state::{SaveStateV1, SAVE_FORMAT_VERSION};
use crate::simulation::time::{SimulationTime, TickRate};
use bevy_ecs::world::World;
use std::sync::atomic::{AtomicU64, Ordering};
static COUNTER: AtomicU64 = AtomicU64::new(0);
fn temp_path() -> PathBuf {
let id = COUNTER.fetch_add(1, Ordering::Relaxed);
std::env::temp_dir().join(format!("settled_reach_save_io_test_{}.msgpack", id))
}
fn minimal_world() -> World {
let mut w = World::new();
w.insert_resource(SimulationTime::default());
w.insert_resource(SimRng::new(42));
w.insert_resource(RelationshipGraph::new());
w.init_resource::<EntityRegistry>();
w
}
fn spawn_test_npc(world: &mut World, stable_id: u64) -> Entity {
world
.spawn((
Npc,
StableEntityId(StableId(stable_id)),
TilePosition::new(stable_id as i32, 0, 0),
))
.id()
}
// -----------------------------------------------------------------------
// save_to_file
// -----------------------------------------------------------------------
#[test]
fn save_to_file_creates_valid_msgpack() {
let mut world = minimal_world();
spawn_test_npc(&mut world, 1);
spawn_test_npc(&mut world, 2);
let path = temp_path();
save_to_file(&path, &mut world).expect("save should succeed");
let bytes = std::fs::read(&path).expect("file should exist");
let state = SaveStateV1::from_bytes(&bytes).expect("bytes must be valid msgpack");
assert_eq!(state.format_version, SAVE_FORMAT_VERSION);
assert_eq!(state.npc_states.len(), 2);
let _ = std::fs::remove_file(&path);
}
#[test]
fn save_to_file_sorts_npc_states_by_stable_id() {
let mut world = minimal_world();
// Spawn in reverse order — save should still sort ascending
spawn_test_npc(&mut world, 50);
spawn_test_npc(&mut world, 10);
spawn_test_npc(&mut world, 30);
let path = temp_path();
save_to_file(&path, &mut world).expect("save should succeed");
let bytes = std::fs::read(&path).expect("read saved file");
let state = SaveStateV1::from_bytes(&bytes).unwrap();
let ids: Vec<u64> = state.npc_states.iter().map(|n| n.stable_id.0).collect();
assert_eq!(ids, vec![10, 30, 50], "npc_states must be sorted by stable_id");
let _ = std::fs::remove_file(&path);
}
#[test]
fn save_to_file_preserves_tick_and_seed() {
let mut world = minimal_world();
{
let mut t = world.resource_mut::<SimulationTime>();
t.tick = 9999;
t.tick_rate = TickRate::Half;
}
world.insert_resource(SimRng::new(0xDEADBEEF));
let path = temp_path();
save_to_file(&path, &mut world).expect("save");
let bytes = std::fs::read(&path).unwrap();
let state = SaveStateV1::from_bytes(&bytes).unwrap();
assert_eq!(state.tick, 9999);
assert_eq!(state.tick_rate, TickRate::Half);
assert_eq!(state.seed, 0xDEADBEEF);
let _ = std::fs::remove_file(&path);
}
#[test]
fn save_to_file_returns_io_error_on_bad_path() {
let mut world = minimal_world();
let bad_path = std::path::Path::new("/nonexistent/directory/save.msgpack");
let result = save_to_file(bad_path, &mut world);
assert!(
matches!(result, Err(SaveLoadError::Io(_))),
"expected Io error for bad path"
);
}
// -----------------------------------------------------------------------
// load_from_file
// -----------------------------------------------------------------------
#[test]
fn load_from_file_restores_npc_count() {
let mut world = minimal_world();
spawn_test_npc(&mut world, 1);
spawn_test_npc(&mut world, 2);
let path = temp_path();
save_to_file(&path, &mut world).expect("save");
// Spawn an extra NPC — loading should despawn the old NPCs and restore exactly 2
spawn_test_npc(&mut world, 99);
let pre_load_count = {
let mut q = world.query_filtered::<Entity, With<Npc>>();
q.iter(&world).count()
};
assert_eq!(pre_load_count, 3, "three NPCs before load");
load_from_file(&path, &mut world).expect("load");
let post_load_count = {
let mut q = world.query_filtered::<Entity, With<Npc>>();
q.iter(&world).count()
};
assert_eq!(post_load_count, 2, "exactly the two saved NPCs after load");
let _ = std::fs::remove_file(&path);
}
#[test]
fn load_from_file_restores_stable_ids_in_registry() {
let mut world = minimal_world();
spawn_test_npc(&mut world, 10);
spawn_test_npc(&mut world, 20);
let path = temp_path();
save_to_file(&path, &mut world).expect("save");
load_from_file(&path, &mut world).expect("load");
let registry = world.resource::<EntityRegistry>();
assert!(
registry.to_entity(&StableId(10)).is_some(),
"StableId(10) must be in registry after load"
);
assert!(
registry.to_entity(&StableId(20)).is_some(),
"StableId(20) must be in registry after load"
);
let _ = std::fs::remove_file(&path);
}
#[test]
fn load_from_file_restores_tick_and_seed() {
let mut world = minimal_world();
{
let mut t = world.resource_mut::<SimulationTime>();
t.tick = 5000;
}
world.insert_resource(SimRng::new(12345));
let path = temp_path();
save_to_file(&path, &mut world).expect("save");
// Change time and seed, then load
{
let mut t = world.resource_mut::<SimulationTime>();
t.tick = 1;
}
world.insert_resource(SimRng::new(0));
load_from_file(&path, &mut world).expect("load");
let t = world.resource::<SimulationTime>();
assert_eq!(t.tick, 5000, "tick restored from save");
assert_eq!(
world.resource::<SimRng>().seed(),
12345,
"seed restored from save"
);
let _ = std::fs::remove_file(&path);
}
#[test]
fn load_from_file_rejects_wrong_format_version() {
// Craft a save with a wrong format_version
let bad_state = SaveStateV1 {
format_version: 0xFF, // deliberately wrong
tick: 0,
tick_rate: TickRate::Full,
seed: 0,
player_knowledge: KnowledgeGraph::new(),
relationship_graph: RelationshipGraph::new(),
npc_states: vec![],
};
let bytes = bad_state.to_bytes().expect("serialize");
let path = temp_path();
std::fs::write(&path, &bytes).expect("write");
let mut world = minimal_world();
let result = load_from_file(&path, &mut world);
assert!(
matches!(result, Err(SaveLoadError::VersionMismatch { .. })),
"expected VersionMismatch error, got {:?}",
result
);
let _ = std::fs::remove_file(&path);
}
#[test]
fn load_from_file_returns_io_error_for_missing_file() {
let mut world = minimal_world();
let missing = std::path::Path::new("/tmp/settled_reach_nonexistent_42.msgpack");
let result = load_from_file(missing, &mut world);
assert!(
matches!(result, Err(SaveLoadError::Io(_))),
"expected Io error for missing file"
);
}
#[test]
fn load_from_file_assigns_background_sim_tier() {
let mut world = minimal_world();
spawn_test_npc(&mut world, 1);
let path = temp_path();
save_to_file(&path, &mut world).expect("save");
load_from_file(&path, &mut world).expect("load");
let has_background: bool = {
let mut q = world.query_filtered::<Entity, (With<Npc>, With<BackgroundSim>)>();
q.iter(&world).count() > 0
};
assert!(
has_background,
"loaded NPC should be in BackgroundSim tier"
);
let _ = std::fs::remove_file(&path);
}
// -----------------------------------------------------------------------
// execute_save_load
// -----------------------------------------------------------------------
#[test]
fn execute_save_load_noop_when_no_pending() {
let mut world = minimal_world();
world.init_resource::<SaveLoadPending>();
world.init_resource::<SnapshotBuffer>();
execute_save_load(&mut world);
// No result written when no pending command
let buf = world.resource::<SnapshotBuffer>();
assert!(
buf.pending_save_result.is_none(),
"no pending_save_result when no command was queued"
);
}
#[test]
fn execute_save_load_writes_success_result() {
let mut world = minimal_world();
world.init_resource::<SnapshotBuffer>();
let path = temp_path();
world.insert_resource(SaveLoadPending {
pending: Some(SaveLoadCommand::Save { path: path.clone() }),
});
execute_save_load(&mut world);
let buf = world.resource::<SnapshotBuffer>();
let result = buf
.pending_save_result
.as_ref()
.expect("result must be written after execute");
assert!(result.success, "save should succeed");
assert_eq!(result.kind, "save");
assert!(result.error.is_none());
let _ = std::fs::remove_file(&path);
}
#[test]
fn execute_save_load_writes_error_result_on_bad_path() {
let mut world = minimal_world();
world.init_resource::<SnapshotBuffer>();
world.insert_resource(SaveLoadPending {
pending: Some(SaveLoadCommand::Save {
path: PathBuf::from("/nonexistent/dir/save.msgpack"),
}),
});
execute_save_load(&mut world);
let buf = world.resource::<SnapshotBuffer>();
let result = buf
.pending_save_result
.as_ref()
.expect("result must be written even on failure");
assert!(!result.success, "save should fail with bad path");
assert_eq!(result.kind, "save");
assert!(result.error.is_some(), "error message should be present");
}
// -----------------------------------------------------------------------
// SaveLoadError display
// -----------------------------------------------------------------------
#[test]
fn save_load_error_display() {
let e = SaveLoadError::Io("disk full".into());
assert!(e.to_string().contains("disk full"));
let e2 = SaveLoadError::VersionMismatch {
expected: 1,
found: 2,
};
assert!(e2.to_string().contains("expected 1"));
assert!(e2.to_string().contains("found 2"));
}
}
+480 -6
View File
@@ -2,7 +2,8 @@
//!
//! `SaveStateV1` is the versioned serialization envelope for full game state.
//! Shares architecture with #96 (state serialization system) — this module
//! defines the data model only; ECS extraction and injection is #257.
//! defines the data model AND the per-NPC serialization primitives for tier
//! eviction freeze/thaw (#96).
//!
//! ## Write format: MessagePack
//!
@@ -34,12 +35,22 @@
//! - `NpcMemory` (intentionally excluded — stale inferences would be wrong after
//! reload; memory degrades naturally over time so reset-on-load is acceptable)
use bevy_ecs::entity::Entity;
use bevy_ecs::world::World;
use serde::{Deserialize, Serialize};
use crate::knowledge::graph::KnowledgeGraph;
use crate::knowledge::registry::StableEntityId;
use crate::knowledge::types::StableId;
use crate::npc::{SecretSeverity, Relationships};
use crate::npc::{
CombatCapability, Contentment, DailyRoutine, InformationInventory, JobPerformance, Npc,
PersonalityTraits, Relationships, Secret, SecretSeverity, SkillSet, TellSystem,
ToleranceThreshold, Want, WantKind,
};
use crate::npc::awareness::PlayerAwareness;
use crate::npc::mood::MoodState;
use crate::npc::relationships::RelationshipGraph;
use crate::npc::vision::{NpcMemory, NpcVisionState};
use crate::simulation::movement::TilePosition;
use crate::simulation::time::TickRate;
@@ -76,9 +87,36 @@ pub struct SaveStateV1 {
/// Per-NPC state snapshot for `SaveStateV1`.
///
/// Captures the D-024 axis values and position. On load, the full NPC entity
/// is reconstructed by injecting these values into the appropriate components.
/// Field order matches the 10-axis model (D-024) for readability.
/// Two usage contexts:
/// 1. **Whole-game save** (`SaveStateV1.npc_states`): populated by #553 ECS extraction.
/// Only the core axis fields need to be populated for this use case.
/// 2. **Tier eviction freeze** (produced by `serialize_npc_to_frozen`): captures ALL
/// components needed for full NPC reconstruction from `StateSaved` tier.
/// The extended optional fields (#96) carry all 10 D-024 axes.
///
/// All fields added post-#256 use `#[serde(default)]` for forward compatibility
/// with older save files that predate these fields.
///
/// ## D-024 axis coverage
/// | Axis | Field | Status |
/// |------|-------|--------|
/// | 1: Want | `want` | Full (optional for backward compat) |
/// | 2: Secret | `secret_severity` (legacy) + `secret` | Full |
/// | 3: Relationships | `relationships` | Full |
/// | 4: Tolerance | `current_stress` + `tolerance_threshold` | Full |
/// | 5: Daily routine | `routine` | Full (optional) |
/// | 6: Information inventory | `information_inventory` | Full (optional) |
/// | 7: Contentment | `contentment` | Full |
/// | Supporting 1: Personality | `personality_traits` | Full (optional) |
/// | Supporting 2: Tells | `tell_system` | Full (optional) |
/// | Supporting 3: Skills | `skill_set` + `combat_capability` | Full (optional) |
///
/// ## Components intentionally NOT serialized
/// - `NpcVisionState`: runtime LOS state, reset to default on reactivation
/// - `NpcMemory`: stale inferences would be wrong after reload (intentional drop)
/// - `PlayerAwareness`: runtime derived state, reset to default on reactivation
/// - `AnimationTier`: resets to `Tier1` on reactivation (no persistent state)
/// - `RoutineDeviation`: transient event marker, acceptable to drop on reload
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct NpcSaveState {
/// Stable entity identifier (survives serialization — D-020).
@@ -86,7 +124,8 @@ pub struct NpcSaveState {
/// Last known tile position.
pub position: TilePosition,
// Axis 2: Secret severity (description is regenerated from content on load)
// Axis 2: Secret severity (legacy field — description regenerated from content on load).
// Kept for backward compatibility. Prefer `secret` field when doing full reconstruction.
pub secret_severity: SecretSeverity,
// Axis 3: Per-NPC relationship slots
pub relationships: Option<Relationships>,
@@ -99,6 +138,52 @@ pub struct NpcSaveState {
/// Per-NPC knowledge graph (if present — Active-tier NPCs carry KG).
pub knowledge_graph: Option<KnowledgeGraph>,
// --- Full reconstruction fields (added #96, for tier eviction freeze) ---
// All fields below use serde(default) for backward compatibility with saves
// created before #96 shipped.
/// Axis 1: Want (primary drive, intensity, and description).
#[serde(default)]
pub want: Option<Want>,
/// Axis 2: Full secret (description + known_by list).
/// Supersedes `secret_severity` for full reconstruction.
#[serde(default)]
pub secret: Option<Secret>,
/// Axis 5: Daily routine (phase → location schedule).
#[serde(default)]
pub routine: Option<DailyRoutine>,
/// Axis 6: Information inventory (facts this NPC carries).
#[serde(default)]
pub information_inventory: Option<InformationInventory>,
/// Supporting axis 1: Personality traits (23 traits, no contradictory pairs).
#[serde(default)]
pub personality_traits: Option<PersonalityTraits>,
/// Supporting axis 2: Tell system (behavioral tells tied to stress/personality).
#[serde(default)]
pub tell_system: Option<TellSystem>,
/// Supporting axis 3: Skill set (proficiency BTreeMap).
#[serde(default)]
pub skill_set: Option<SkillSet>,
/// Optional combat capability (only present for combat-trained NPCs).
#[serde(default)]
pub combat_capability: Option<CombatCapability>,
/// Mood state at save time. Derived from stress but worth preserving across
/// tier transitions to avoid jarring state resets on reactivation.
#[serde(default)]
pub mood_state: Option<MoodState>,
/// Job performance score — drifts over time, persist across tier transitions.
#[serde(default)]
pub job_performance: Option<JobPerformance>,
}
impl SaveStateV1 {
@@ -113,6 +198,166 @@ impl SaveStateV1 {
}
}
// ---------------------------------------------------------------------------
// Per-NPC tier eviction serialization primitives (#96)
// ---------------------------------------------------------------------------
/// Serialize a live NPC entity to a `NpcSaveState` frozen struct.
///
/// Used by the tier eviction system when demoting an entity to `StateSaved`:
/// instead of keeping all ECS components live, the entity is frozen and despawned.
/// The caller should despawn the entity after calling this function.
///
/// **Caller invariant:** The entity must have a `StableEntityId` component.
/// All other components are optional — missing components produce sensible defaults
/// in the output (and will be reconstructed as defaults by `deserialize_npc_from_frozen`).
///
/// # Panics
/// Panics if the entity has no `StableEntityId` component.
pub fn serialize_npc_to_frozen(entity: Entity, world: &World) -> NpcSaveState {
let position = world
.get::<TilePosition>(entity)
.copied()
.unwrap_or_else(|| TilePosition::new(0, 0, 0));
let stable_id = world
.get::<StableEntityId>(entity)
.map(|s| s.0)
.expect("NPC entity must have StableEntityId before serialization (#96)");
let secret = world.get::<Secret>(entity).cloned();
let secret_severity = secret
.as_ref()
.map(|s| s.severity)
.unwrap_or(SecretSeverity::Minor);
let (current_stress, tolerance_threshold) = world
.get::<ToleranceThreshold>(entity)
.map(|t| (t.current_stress, t.threshold))
.unwrap_or((0, 50));
NpcSaveState {
stable_id,
position,
secret_severity,
relationships: world.get::<Relationships>(entity).cloned(),
current_stress,
tolerance_threshold,
contentment: world
.get::<Contentment>(entity)
.map(|c| c.level)
.unwrap_or(0),
knowledge_graph: world.get::<KnowledgeGraph>(entity).cloned(),
want: world.get::<Want>(entity).cloned(),
secret,
routine: world.get::<DailyRoutine>(entity).cloned(),
information_inventory: world.get::<InformationInventory>(entity).cloned(),
personality_traits: world.get::<PersonalityTraits>(entity).cloned(),
tell_system: world.get::<TellSystem>(entity).cloned(),
skill_set: world.get::<SkillSet>(entity).cloned(),
combat_capability: world.get::<CombatCapability>(entity).cloned(),
mood_state: world.get::<MoodState>(entity).cloned(),
job_performance: world.get::<JobPerformance>(entity).cloned(),
}
}
/// Deserialize a frozen `NpcSaveState` and re-spawn a full NPC entity.
///
/// Used by the tier eviction system when reactivating an entity from `StateSaved`.
/// Reconstructs all D-024 axis components from the frozen state.
///
/// **Caller responsibilities after calling this function:**
/// 1. Register the returned `Entity` with `EntityRegistry` (StableId→Entity mapping).
/// 2. Assign the appropriate tier marker (`ActiveSim` or `BackgroundSim`).
///
/// Optional fields that are absent in `state` are reconstructed with sensible defaults:
/// - `Want`: defaults to `Safety` at intensity 5 (conservative non-disruptive default)
/// - `Secret`: reconstructed from `secret_severity` with empty description
/// - `MoodState`, `JobPerformance`: their `Default` implementations
///
/// Components excluded from reconstruction (see `NpcSaveState` doc for rationale):
/// `NpcVisionState`, `NpcMemory`, `PlayerAwareness` are reset to their `Default` states.
pub fn deserialize_npc_from_frozen(state: &NpcSaveState, world: &mut World) -> Entity {
let want = state.want.clone().unwrap_or(Want {
primary: WantKind::Safety, // conservative fallback — see flag comment above
intensity: 5,
description: String::new(),
});
let secret = state.secret.clone().unwrap_or(crate::npc::Secret {
description: String::new(),
severity: state.secret_severity,
known_by: vec![],
});
let relationships = state
.relationships
.clone()
.unwrap_or(Relationships { entries: vec![] });
let tolerance = ToleranceThreshold {
current_stress: state.current_stress,
threshold: state.tolerance_threshold,
};
let contentment = Contentment {
level: state.contentment,
};
let kg = state
.knowledge_graph
.clone()
.unwrap_or_else(KnowledgeGraph::new);
// Spawn the entity with all required components. Tier marker (ActiveSim /
// BackgroundSim) is NOT added here — the caller assigns it after registration.
let entity = world
.spawn((
Npc,
state.position,
StableEntityId(state.stable_id),
want,
secret,
relationships,
tolerance,
contentment,
kg,
state.mood_state.clone().unwrap_or_default(),
state.job_performance.clone().unwrap_or_default(),
// Runtime-computed components: reset to default on reactivation.
NpcVisionState::default(),
NpcMemory::default(),
PlayerAwareness::default(),
))
.id();
// Optional axis components — insert only if present in frozen state.
{
let mut em = world.entity_mut(entity);
if let Some(routine) = state.routine.clone() {
em.insert(routine);
}
if let Some(inventory) = state.information_inventory.clone() {
em.insert(inventory);
}
if let Some(traits) = state.personality_traits.clone() {
em.insert(traits);
}
if let Some(tells) = state.tell_system.clone() {
em.insert(tells);
}
if let Some(skills) = state.skill_set.clone() {
em.insert(skills);
}
if let Some(combat) = state.combat_capability.clone() {
em.insert(combat);
}
}
entity
}
// ---------------------------------------------------------------------------
// Tests
// ---------------------------------------------------------------------------
@@ -121,6 +366,7 @@ impl SaveStateV1 {
mod tests {
use super::*;
use crate::knowledge::graph::KnowledgeGraph;
use crate::knowledge::registry::StableEntityId;
use crate::knowledge::types::{FactId, FactKnowledge, KnowledgeConfidence, StableId};
use crate::npc::relationships::RelationshipGraph;
use crate::simulation::movement::TilePosition;
@@ -193,6 +439,16 @@ mod tests {
tolerance_threshold: 80,
contentment: -15,
knowledge_graph: None,
want: None,
secret: None,
routine: None,
information_inventory: None,
personality_traits: None,
tell_system: None,
skill_set: None,
combat_capability: None,
mood_state: None,
job_performance: None,
},
NpcSaveState {
stable_id: StableId(202),
@@ -203,6 +459,16 @@ mod tests {
tolerance_threshold: 60,
contentment: 30,
knowledge_graph: None,
want: None,
secret: None,
routine: None,
information_inventory: None,
personality_traits: None,
tell_system: None,
skill_set: None,
combat_capability: None,
mood_state: None,
job_performance: None,
},
];
@@ -301,6 +567,16 @@ mod tests {
tolerance_threshold: 50,
contentment: 0,
knowledge_graph: Some(npc_kg),
want: None,
secret: None,
routine: None,
information_inventory: None,
personality_traits: None,
tell_system: None,
skill_set: None,
combat_capability: None,
mood_state: None,
job_performance: None,
}];
let bytes = state.to_bytes().expect("serialize");
@@ -317,4 +593,202 @@ mod tests {
// Document the version explicitly so CI catches unintentional bumps.
assert_eq!(SAVE_FORMAT_VERSION, 1);
}
// -----------------------------------------------------------------------
// Tier eviction serialization primitives (#96)
// -----------------------------------------------------------------------
fn spawn_minimal_npc(world: &mut World, stable_id: StableId) -> Entity {
use crate::npc::{
Contentment, Relationships, Secret, SecretSeverity, ToleranceThreshold, Want, WantKind,
};
use crate::npc::mood::MoodState;
use crate::npc::vision::{NpcMemory, NpcVisionState};
use crate::npc::awareness::PlayerAwareness;
world
.spawn((
Npc,
StableEntityId(stable_id),
TilePosition::new(5, 10, 0),
Want {
primary: WantKind::Safety,
intensity: 7,
description: "wants safety".into(),
},
Secret {
description: "has a minor secret".into(),
severity: SecretSeverity::Minor,
known_by: vec![],
},
Relationships { entries: vec![] },
ToleranceThreshold {
current_stress: 30,
threshold: 70,
},
Contentment { level: 15 },
MoodState::default(),
crate::npc::JobPerformance::default(),
KnowledgeGraph::new(),
NpcVisionState::default(),
NpcMemory::default(),
PlayerAwareness::default(),
))
.id()
}
#[test]
fn serialize_npc_to_frozen_captures_stable_id_and_position() {
let mut world = World::new();
let entity = spawn_minimal_npc(&mut world, StableId(42));
let frozen = serialize_npc_to_frozen(entity, &world);
assert_eq!(frozen.stable_id, StableId(42));
assert_eq!(frozen.position, TilePosition::new(5, 10, 0));
}
#[test]
fn serialize_npc_to_frozen_captures_axes() {
use crate::npc::SecretSeverity;
let mut world = World::new();
let entity = spawn_minimal_npc(&mut world, StableId(1));
let frozen = serialize_npc_to_frozen(entity, &world);
assert_eq!(frozen.secret_severity, SecretSeverity::Minor);
assert_eq!(frozen.current_stress, 30);
assert_eq!(frozen.tolerance_threshold, 70);
assert_eq!(frozen.contentment, 15);
// Full optional axes should be populated when components exist
assert!(frozen.want.is_some(), "want should be captured");
assert!(frozen.secret.is_some(), "secret should be captured");
}
#[test]
fn serialize_deserialize_roundtrip_produces_identical_component_values() {
// Spec (#96): serialize + deserialize produces an entity with identical values.
let mut world = World::new();
let original = spawn_minimal_npc(&mut world, StableId(77));
// Serialize
let frozen = serialize_npc_to_frozen(original, &world);
// Deserialize into a new entity
let restored = deserialize_npc_from_frozen(&frozen, &mut world);
// Verify StableEntityId matches
let orig_stable = world.get::<StableEntityId>(original).unwrap().0;
let rest_stable = world.get::<StableEntityId>(restored).unwrap().0;
assert_eq!(orig_stable, rest_stable, "StableId must match");
// Position
let orig_pos = world.get::<TilePosition>(original).copied().unwrap();
let rest_pos = world.get::<TilePosition>(restored).copied().unwrap();
assert_eq!(orig_pos, rest_pos, "position must match");
// Tolerance
let orig_tol = world.get::<ToleranceThreshold>(original).cloned().unwrap();
let rest_tol = world.get::<ToleranceThreshold>(restored).cloned().unwrap();
assert_eq!(orig_tol.current_stress, rest_tol.current_stress);
assert_eq!(orig_tol.threshold, rest_tol.threshold);
// Contentment
let orig_con = world.get::<Contentment>(original).cloned().unwrap();
let rest_con = world.get::<Contentment>(restored).cloned().unwrap();
assert_eq!(orig_con.level, rest_con.level, "contentment must match");
// Want
let orig_want = world.get::<Want>(original).cloned().unwrap();
let rest_want = world.get::<Want>(restored).cloned().unwrap();
assert_eq!(orig_want.primary, rest_want.primary, "want.primary must match");
assert_eq!(orig_want.intensity, rest_want.intensity, "want.intensity must match");
// Secret severity
let orig_secret = world.get::<Secret>(original).cloned().unwrap();
let rest_secret = world.get::<Secret>(restored).cloned().unwrap();
assert_eq!(orig_secret.severity, rest_secret.severity, "secret severity must match");
}
#[test]
fn deserialize_npc_without_optional_axes_uses_safe_defaults() {
// Spec (#96): optional fields absent in frozen state produce sensible defaults.
use crate::npc::SecretSeverity;
let frozen = NpcSaveState {
stable_id: StableId(999),
position: TilePosition::new(0, 0, 0),
secret_severity: SecretSeverity::Moderate,
relationships: None,
current_stress: 10,
tolerance_threshold: 50,
contentment: 0,
knowledge_graph: None,
want: None,
secret: None,
routine: None,
information_inventory: None,
personality_traits: None,
tell_system: None,
skill_set: None,
combat_capability: None,
mood_state: None,
job_performance: None,
};
let mut world = World::new();
let entity = deserialize_npc_from_frozen(&frozen, &mut world);
// Entity must exist with required components
assert!(world.get::<Npc>(entity).is_some());
assert!(world.get::<StableEntityId>(entity).is_some());
assert!(world.get::<ToleranceThreshold>(entity).is_some());
assert!(world.get::<Contentment>(entity).is_some());
assert!(world.get::<Want>(entity).is_some(), "Want defaults to Safety");
assert!(world.get::<Secret>(entity).is_some(), "Secret built from secret_severity");
// Secret severity must be preserved from the legacy field
let secret = world.get::<Secret>(entity).unwrap();
assert_eq!(secret.severity, SecretSeverity::Moderate);
// Optional axes absent in frozen state → not inserted or use defaults
assert!(world.get::<DailyRoutine>(entity).is_none(), "routine absent when not frozen");
}
#[test]
fn frozen_npc_roundtrips_via_messagepack() {
// Spec (#96): NpcSaveState must survive MessagePack roundtrip.
let mut world = World::new();
let entity = spawn_minimal_npc(&mut world, StableId(55));
let frozen = serialize_npc_to_frozen(entity, &world);
// Wrap in SaveStateV1 for MessagePack encoding
let save = SaveStateV1 {
format_version: SAVE_FORMAT_VERSION,
tick: 100,
tick_rate: TickRate::Full,
seed: 12,
player_knowledge: KnowledgeGraph::new(),
relationship_graph: RelationshipGraph::new(),
npc_states: vec![frozen],
};
let bytes = save.to_bytes().expect("serialize");
let recovered = SaveStateV1::from_bytes(&bytes).expect("deserialize");
let bytes2 = recovered.to_bytes().expect("re-serialize");
assert_eq!(bytes, bytes2, "frozen NPC state must roundtrip via MessagePack");
}
#[test]
fn serialize_npc_panics_without_stable_entity_id() {
// Spec (#96): StableEntityId is required — missing it is a programmer error.
let mut world = World::new();
let entity = world.spawn((Npc, TilePosition::new(0, 0, 0))).id();
// World doesn't implement UnwindSafe — wrap in AssertUnwindSafe.
let result = std::panic::catch_unwind(std::panic::AssertUnwindSafe(|| {
serialize_npc_to_frozen(entity, &world);
}));
assert!(result.is_err(), "must panic without StableEntityId");
}
}
+790
View File
@@ -1,9 +1,21 @@
// Simulation tier system
// Implements D-026: Active/Background/State-saved/Ungenerated tiers
// Tier transitions based on player approach distance (#99).
// Scope tag system: NPCs with active scope tags stay pinned to ActiveSim (#98).
// Timestamp-based eviction: LRU eviction when ActiveSim exceeds capacity (#97).
use std::collections::{BTreeSet, BinaryHeap};
use std::cmp::Reverse;
use bevy_app::prelude::*;
use bevy_ecs::prelude::*;
use serde::{Deserialize, Serialize};
use crate::knowledge::graph::KnowledgeGraph;
use crate::knowledge::registry::StableEntityId;
use crate::knowledge::types::KnowledgeConfidence;
use crate::npc::{Npc, RelationshipKind};
use crate::npc::relationships::RelationshipGraph;
use crate::simulation::movement::{PlayerCharacter, TilePosition};
// --- Tier radius constants (D-026) ---
@@ -38,20 +50,356 @@ pub struct BackgroundSim;
#[derive(Component, Debug, Clone, Copy, Default)]
pub struct StateSaved;
// ---------------------------------------------------------------------------
// Eviction system (D-026, #97)
// ---------------------------------------------------------------------------
/// Maximum number of entities in `ActiveSim` before LRU eviction kicks in (D-026).
pub const ACTIVE_SIM_CAPACITY: usize = 80;
/// Tracks the tick at which the player last interacted with or observed an NPC (#97).
/// Updated by `update_last_interaction_tick` when an NPC is in the player's LOS.
/// Used by `evict_excess_active` as the LRU sort key.
#[derive(Component, Debug, Clone, Copy, Default, Serialize, Deserialize)]
pub struct LastInteractionTick(pub u64);
/// Tracks current `ActiveSim` entity count vs. capacity (#97, D-026).
/// Updated each tick by `evict_excess_active`.
#[derive(Resource, Debug, Clone)]
pub struct SimSpacePressure {
/// Number of entities currently in `ActiveSim`.
pub active_count: usize,
/// Capacity ceiling.
pub capacity: usize,
}
impl Default for SimSpacePressure {
fn default() -> Self {
Self {
active_count: 0,
capacity: ACTIVE_SIM_CAPACITY,
}
}
}
// ---------------------------------------------------------------------------
// Scope tag system (D-026, #98)
// ---------------------------------------------------------------------------
/// Scope tag kinds: reasons why an NPC stays pinned to `ActiveSim` (D-026).
///
/// Four variants track distinct reasons for pinning. An NPC may have multiple
/// reasons simultaneously — all are tracked in `ScopeTag`.
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub enum ScopeTagKind {
/// NPC is in the player's immediate neighborhood.
/// Set at session start for NPCs within `ACTIVE_RADIUS`. Managed by
/// `assign_neighborhood_tags_on_start` (deferred: future sprint).
Neighborhood,
/// NPC is involved in an active quest.
/// Reserved for the quest system (deferred: future sprint).
ActiveQuest,
/// NPC has a `Friend` or `Colleague` relationship with the player character.
/// Assigned by `assign_scope_tags` each tick from `RelationshipGraph`.
Colleague,
/// NPC is known to the player with confidence >= `KnowsOf`.
/// Assigned by `assign_scope_tags` each tick from player `KnowledgeGraph`.
KnownContact,
}
/// Scope tag component: which scope tags currently apply to this NPC (D-026).
///
/// NPCs carrying at least one scope tag are kept in `ActiveSim` regardless of
/// distance or LRU eviction pressure. `ScopePinned` is the eviction guard;
/// this component is the source of truth.
///
/// Assignment:
/// - `KnownContact` and `Colleague`: recomputed by `assign_scope_tags` each tick.
/// - `Neighborhood`: set at session start (see `ScopeTagKind::Neighborhood`).
/// - `ActiveQuest`: reserved for future quest system.
#[derive(Component, Debug, Clone, Default, Serialize, Deserialize)]
pub struct ScopeTag {
pub tags: BTreeSet<ScopeTagKind>,
}
impl ScopeTag {
/// Create a `ScopeTag` with a single initial kind.
pub fn with(kind: ScopeTagKind) -> Self {
let mut tags = BTreeSet::new();
tags.insert(kind);
Self { tags }
}
/// Add a scope tag kind.
pub fn add(&mut self, kind: ScopeTagKind) {
self.tags.insert(kind);
}
/// Remove a scope tag kind.
pub fn remove(&mut self, kind: ScopeTagKind) {
self.tags.remove(&kind);
}
/// True if this NPC carries at least one scope tag.
pub fn is_pinned(&self) -> bool {
!self.tags.is_empty()
}
/// True if this specific kind is present.
pub fn contains(&self, kind: ScopeTagKind) -> bool {
self.tags.contains(&kind)
}
}
/// Marker component: this NPC is scope-pinned — the eviction system must skip it.
///
/// Kept in sync with `ScopeTag` by `sync_scope_pins`. Always use `ScopeTag`
/// as the source of truth; treat `ScopePinned` as a query-optimisation cache.
#[derive(Component, Debug, Clone, Copy, Default)]
pub struct ScopePinned;
/// Plugin registering the tier marker components and the tier transition system.
pub struct TierPlugin;
impl Plugin for TierPlugin {
fn build(&self, app: &mut App) {
app.init_resource::<SimSpacePressure>();
// Tier transition runs after movement so positions are current.
app.add_systems(
Update,
update_tier_markers.after(crate::simulation::movement::validate_movement),
);
// Scope tag assignment runs each tick to keep KnownContact / Colleague current.
// Must run before sync_scope_pins so pins are correct before eviction checks.
// Eviction runs after scope pins are synced (respects ScopePinned).
// LastInteractionTick update runs after visibility geometry.
app.add_systems(
Update,
(
assign_scope_tags,
sync_scope_pins.after(assign_scope_tags),
update_last_interaction_tick
.after(crate::perception::observer::compute_visibility_geometry),
evict_excess_active
.after(sync_scope_pins)
.after(update_tier_markers),
),
);
tracing::debug!("TierPlugin initialized");
}
}
// ---------------------------------------------------------------------------
// Scope tag systems (D-026, #98)
// ---------------------------------------------------------------------------
/// System: assign `KnownContact` and `Colleague` scope tags from player epistemics.
///
/// Runs each tick. Clears and recomputes `KnownContact` and `Colleague` tags for all
/// NPCs based on:
/// - `KnownContact`: player `KnowledgeGraph` has an entry for this NPC with
/// confidence >= `KnowsOf`.
/// - `Colleague`: global `RelationshipGraph` has an edge from the player to this NPC
/// with kind `Friend` or `Colleague`.
///
/// `Neighborhood` and `ActiveQuest` tags are NOT touched by this system:
/// - `Neighborhood` is set at session start and persists (future sprint).
/// - `ActiveQuest` is reserved for the quest system (future sprint).
///
/// No-op when there is no `PlayerCharacter` entity.
pub fn assign_scope_tags(
player_query: Query<(&KnowledgeGraph, &StableEntityId), With<PlayerCharacter>>,
rel_graph: Res<RelationshipGraph>,
mut npcs: Query<(Entity, &StableEntityId, Option<&mut ScopeTag>), With<Npc>>,
mut commands: Commands,
) {
let Ok((player_kg, player_stable)) = player_query.single() else {
return;
};
let player_id = player_stable.0;
// Collect KnownContact set: entities in player KG with confidence >= KnowsOf.
// BTreeSet for deterministic iteration (D-010).
let known_contacts: BTreeSet<_> = player_kg
.entities
.iter()
.filter(|(_, ek)| ek.confidence >= KnowledgeConfidence::KnowsOf)
.map(|(id, _)| *id)
.collect();
// Collect Colleague set: player → NPC relationship edges with Friend/Colleague kind.
let colleagues: BTreeSet<_> = rel_graph
.relationships_of(&player_id)
.into_iter()
.filter(|(_, edge)| {
matches!(edge.kind, RelationshipKind::Friend | RelationshipKind::Colleague)
})
.map(|(target_id, _)| *target_id)
.collect();
for (entity, npc_stable, maybe_scope_tag) in &mut npcs {
let npc_id = npc_stable.0;
let is_known = known_contacts.contains(&npc_id);
let is_colleague = colleagues.contains(&npc_id);
match maybe_scope_tag {
Some(mut scope_tag) => {
// Remove computed tags, then re-add if still applicable.
scope_tag.remove(ScopeTagKind::KnownContact);
scope_tag.remove(ScopeTagKind::Colleague);
if is_known {
scope_tag.add(ScopeTagKind::KnownContact);
}
if is_colleague {
scope_tag.add(ScopeTagKind::Colleague);
}
}
None if is_known || is_colleague => {
// Create a new ScopeTag component for this NPC.
let mut scope_tag = ScopeTag::default();
if is_known {
scope_tag.add(ScopeTagKind::KnownContact);
}
if is_colleague {
scope_tag.add(ScopeTagKind::Colleague);
}
commands.entity(entity).insert(scope_tag);
}
None => {} // NPC not known or related — no scope tag needed.
}
}
}
/// System: keep `ScopePinned` markers in sync with `ScopeTag` components.
///
/// Runs after `assign_scope_tags`. For each NPC:
/// - `ScopeTag` present and non-empty → add `ScopePinned` (if not already present).
/// - `ScopeTag` absent or empty → remove `ScopePinned` (if present).
///
/// The eviction system (#97) queries `Without<ScopePinned>` to skip pinned NPCs.
pub fn sync_scope_pins(
mut commands: Commands,
needs_pin: Query<(Entity, &ScopeTag), Without<ScopePinned>>,
may_need_unpin: Query<(Entity, Option<&ScopeTag>), With<ScopePinned>>,
) {
// Add ScopePinned to NPCs that have a non-empty ScopeTag.
for (entity, scope_tag) in &needs_pin {
if scope_tag.is_pinned() {
commands.entity(entity).insert(ScopePinned);
}
}
// Remove ScopePinned from NPCs whose ScopeTag is absent or empty.
for (entity, maybe_scope_tag) in &may_need_unpin {
let still_pinned = maybe_scope_tag.map(|s| s.is_pinned()).unwrap_or(false);
if !still_pinned {
commands.entity(entity).remove::<ScopePinned>();
}
}
}
// ---------------------------------------------------------------------------
// Eviction systems (D-026, #97)
// ---------------------------------------------------------------------------
/// System: update `LastInteractionTick` for NPCs visible to the player (#97).
///
/// Runs after visibility geometry is computed. Any NPC at a visible position
/// (in the player's LOS) gets its `LastInteractionTick` set to the current tick.
/// NPCs without this component get it inserted on first observation.
pub fn update_last_interaction_tick(
time: Res<crate::simulation::time::SimulationTime>,
vis_geo: Res<crate::perception::query::VisibilityGeometry>,
mut npcs_with_tick: Query<(&TilePosition, &mut LastInteractionTick), With<Npc>>,
npcs_without_tick: Query<(Entity, &TilePosition), (With<Npc>, Without<LastInteractionTick>)>,
mut commands: Commands,
) {
let current_tick = time.tick;
// Update existing LastInteractionTick for visible NPCs.
for (pos, mut last_tick) in &mut npcs_with_tick {
if pos.z == vis_geo.observer_z
&& vis_geo.visible_positions.contains(&(pos.x, pos.y))
{
last_tick.0 = current_tick;
}
}
// Insert LastInteractionTick for NPCs that don't have it yet but are visible.
for (entity, pos) in &npcs_without_tick {
if pos.z == vis_geo.observer_z
&& vis_geo.visible_positions.contains(&(pos.x, pos.y))
{
commands.entity(entity).insert(LastInteractionTick(current_tick));
}
}
}
/// System: evict excess `ActiveSim` entities when count exceeds capacity (#97).
///
/// When more than `ACTIVE_SIM_CAPACITY` entities are in `ActiveSim`:
/// 1. Skip all `ScopePinned` entities (they stay Active regardless).
/// 2. Sort remaining by `LastInteractionTick` (oldest first) via min-heap.
/// 3. Demote the oldest N entities to `BackgroundSim` (or `StateSaved` if beyond
/// background radius).
///
/// Updates `SimSpacePressure` resource with current counts.
pub fn evict_excess_active(
mut commands: Commands,
player_query: Query<&TilePosition, With<PlayerCharacter>>,
active_npcs: Query<
(Entity, &TilePosition, Option<&LastInteractionTick>),
(With<ActiveSim>, With<Npc>, Without<ScopePinned>),
>,
active_count_query: Query<(), With<ActiveSim>>,
mut pressure: ResMut<SimSpacePressure>,
) {
let total_active = active_count_query.iter().count();
pressure.active_count = total_active;
if total_active <= pressure.capacity {
return;
}
let excess = total_active - pressure.capacity;
let Ok(player_pos) = player_query.single() else {
return;
};
// Min-heap keyed by LastInteractionTick (oldest = smallest = evicted first).
// Entities without LastInteractionTick get tick 0 (most stale).
let mut heap: BinaryHeap<Reverse<(u64, Entity, TilePosition)>> = BinaryHeap::new();
for (entity, pos, maybe_tick) in &active_npcs {
let tick = maybe_tick.map(|t| t.0).unwrap_or(0);
heap.push(Reverse((tick, entity, *pos)));
}
let mut evicted = 0;
while evicted < excess {
let Some(Reverse((_, entity, pos))) = heap.pop() else {
break;
};
let dist = tile_distance(player_pos, &pos);
if dist > BACKGROUND_RADIUS {
commands.entity(entity).remove::<ActiveSim>().insert(StateSaved);
} else {
commands.entity(entity).remove::<ActiveSim>().insert(BackgroundSim);
}
evicted += 1;
}
if evicted > 0 {
tracing::debug!(
"evicted {} excess ActiveSim entities (was {}, cap {})",
evicted,
total_active,
pressure.capacity,
);
}
}
// --- Tier transition system (D-026, #99) ---
/// Manhattan tile distance between two positions, returning `u32::MAX` for
@@ -432,4 +780,446 @@ mod tests {
assert!(world.get::<ActiveSim>(npc).is_none(), "demoted to Background");
assert!(world.get::<BackgroundSim>(npc).is_some());
}
// -----------------------------------------------------------------------
// ScopeTag component tests (#98, D-026)
// -----------------------------------------------------------------------
#[test]
fn scope_tag_with_creates_single_kind() {
let tag = ScopeTag::with(ScopeTagKind::KnownContact);
assert!(tag.contains(ScopeTagKind::KnownContact));
assert!(!tag.contains(ScopeTagKind::Colleague));
assert!(tag.is_pinned());
}
#[test]
fn scope_tag_add_and_remove() {
let mut tag = ScopeTag::default();
assert!(!tag.is_pinned(), "new ScopeTag is empty");
tag.add(ScopeTagKind::Colleague);
assert!(tag.is_pinned());
assert!(tag.contains(ScopeTagKind::Colleague));
tag.add(ScopeTagKind::KnownContact);
assert!(tag.contains(ScopeTagKind::KnownContact));
tag.remove(ScopeTagKind::Colleague);
assert!(!tag.contains(ScopeTagKind::Colleague));
assert!(tag.is_pinned(), "still pinned by KnownContact");
tag.remove(ScopeTagKind::KnownContact);
assert!(!tag.is_pinned(), "unpinned when all tags removed");
}
#[test]
fn scope_tag_multiple_kinds_coexist() {
let mut tag = ScopeTag::default();
tag.add(ScopeTagKind::Neighborhood);
tag.add(ScopeTagKind::ActiveQuest);
tag.add(ScopeTagKind::Colleague);
tag.add(ScopeTagKind::KnownContact);
assert_eq!(tag.tags.len(), 4, "all four kinds present");
assert!(tag.is_pinned());
}
// -----------------------------------------------------------------------
// sync_scope_pins system tests (#98)
// -----------------------------------------------------------------------
fn run_sync_scope_pins(world: &mut World) {
let mut schedule = bevy_ecs::schedule::Schedule::default();
schedule.add_systems(sync_scope_pins);
schedule.run(world);
}
#[test]
fn sync_scope_pins_adds_scope_pinned_for_non_empty_tag() {
let mut world = World::new();
let npc = world
.spawn((Npc, ScopeTag::with(ScopeTagKind::KnownContact)))
.id();
run_sync_scope_pins(&mut world);
assert!(
world.get::<ScopePinned>(npc).is_some(),
"ScopePinned added for non-empty ScopeTag"
);
}
#[test]
fn sync_scope_pins_does_not_add_for_empty_tag() {
let mut world = World::new();
let npc = world.spawn((Npc, ScopeTag::default())).id();
run_sync_scope_pins(&mut world);
assert!(
world.get::<ScopePinned>(npc).is_none(),
"ScopePinned must NOT be added for empty ScopeTag"
);
}
#[test]
fn sync_scope_pins_removes_scope_pinned_when_tag_emptied() {
let mut world = World::new();
// Start with ScopePinned already set but ScopeTag now empty.
let npc = world.spawn((Npc, ScopePinned, ScopeTag::default())).id();
run_sync_scope_pins(&mut world);
assert!(
world.get::<ScopePinned>(npc).is_none(),
"ScopePinned removed when ScopeTag is empty"
);
}
#[test]
fn sync_scope_pins_removes_scope_pinned_when_tag_absent() {
let mut world = World::new();
// NPC has ScopePinned but no ScopeTag component at all.
let npc = world.spawn((Npc, ScopePinned)).id();
run_sync_scope_pins(&mut world);
assert!(
world.get::<ScopePinned>(npc).is_none(),
"ScopePinned removed when ScopeTag absent"
);
}
#[test]
fn sync_scope_pins_keeps_existing_scope_pinned() {
// An NPC that already has ScopePinned AND a non-empty ScopeTag should remain pinned.
let mut world = World::new();
let npc = world
.spawn((Npc, ScopePinned, ScopeTag::with(ScopeTagKind::Colleague)))
.id();
run_sync_scope_pins(&mut world);
// After sync, the NPC should still have ScopePinned (it was already there
// AND the scope tag is non-empty — so no change needed).
assert!(
world.get::<ScopePinned>(npc).is_some(),
"ScopePinned preserved for non-empty ScopeTag"
);
}
// -----------------------------------------------------------------------
// assign_scope_tags system tests (#98)
// -----------------------------------------------------------------------
fn run_assign_scope_tags(world: &mut World) {
let mut schedule = bevy_ecs::schedule::Schedule::default();
schedule.add_systems(assign_scope_tags);
schedule.run(world);
}
#[test]
fn assign_scope_tags_no_op_without_player() {
let mut world = World::new();
world.init_resource::<RelationshipGraph>();
// NPC exists but no PlayerCharacter
let npc = world.spawn((Npc, StableEntityId(crate::knowledge::types::StableId(1)))).id();
run_assign_scope_tags(&mut world);
// No ScopeTag should be assigned — no player
assert!(world.get::<ScopeTag>(npc).is_none());
}
#[test]
fn assign_scope_tags_known_contact_from_player_kg() {
use crate::knowledge::types::StableId;
let mut world = World::new();
world.init_resource::<RelationshipGraph>();
let npc_stable = StableId(10);
let player_stable = StableId(1);
// Set up player with a KnowledgeGraph that knows the NPC at KnowsOf level.
let mut player_kg = KnowledgeGraph::new();
player_kg.observe_entity(npc_stable, make_pos(5, 5), 0);
world.spawn((
PlayerCharacter,
make_pos(0, 0),
player_kg,
StableEntityId(player_stable),
));
// Spawn the NPC
let npc = world
.spawn((Npc, make_pos(10, 0), StableEntityId(npc_stable)))
.id();
run_assign_scope_tags(&mut world);
let scope_tag = world.get::<ScopeTag>(npc).expect("ScopeTag should be assigned");
assert!(
scope_tag.contains(ScopeTagKind::KnownContact),
"NPC known at KnowsOf level should get KnownContact tag"
);
}
#[test]
fn assign_scope_tags_colleague_from_relationship_graph() {
use crate::knowledge::types::StableId;
use crate::npc::relationships::RelationshipEdge;
let mut world = World::new();
let npc_stable = StableId(20);
let player_stable = StableId(1);
// Player KG is empty — no KnownContact.
let player_kg = KnowledgeGraph::new();
world.spawn((
PlayerCharacter,
make_pos(0, 0),
player_kg,
StableEntityId(player_stable),
));
// Set up RelationshipGraph with player → NPC as Friend.
let mut rel_graph = RelationshipGraph::new();
rel_graph.set_relationship(
player_stable,
npc_stable,
RelationshipEdge {
kind: RelationshipKind::Friend,
trust: 5,
history: vec![],
last_interaction_tick: 0,
},
);
world.insert_resource(rel_graph);
let npc = world
.spawn((Npc, make_pos(0, 5), StableEntityId(npc_stable)))
.id();
run_assign_scope_tags(&mut world);
let scope_tag = world.get::<ScopeTag>(npc).expect("ScopeTag assigned for colleague");
assert!(
scope_tag.contains(ScopeTagKind::Colleague),
"Friend relationship should grant Colleague scope tag"
);
}
#[test]
fn assign_scope_tags_does_not_affect_unknown_npcs() {
use crate::knowledge::types::StableId;
let mut world = World::new();
world.init_resource::<RelationshipGraph>();
let player_stable = StableId(1);
let player_kg = KnowledgeGraph::new(); // empty — knows nobody
world.spawn((
PlayerCharacter,
make_pos(0, 0),
player_kg,
StableEntityId(player_stable),
));
// NPC that the player doesn't know
let npc = world
.spawn((Npc, make_pos(10, 0), StableEntityId(StableId(99))))
.id();
run_assign_scope_tags(&mut world);
assert!(
world.get::<ScopeTag>(npc).is_none(),
"unknown NPC should not receive ScopeTag"
);
}
#[test]
fn scope_pinned_npc_in_query_without_scope_pinned_marker() {
// Verify that ScopePinned is a separate marker and Without<ScopePinned>
// correctly excludes pinned NPCs from eviction queries.
let mut world = World::new();
let pinned = world.spawn((Npc, ScopePinned)).id();
let unpinned = world.spawn(Npc).id();
let mut query = world.query_filtered::<Entity, (With<Npc>, Without<ScopePinned>)>();
let unpinned_results: Vec<Entity> = query.iter(&world).collect();
assert_eq!(unpinned_results.len(), 1, "only one unpinned NPC");
assert_eq!(unpinned_results[0], unpinned);
assert!(!unpinned_results.contains(&pinned), "pinned NPC excluded from eviction query");
}
// -----------------------------------------------------------------------
// Eviction system tests (#97, D-026)
// -----------------------------------------------------------------------
fn run_evict_excess_active(world: &mut World) {
let mut schedule = bevy_ecs::schedule::Schedule::default();
schedule.add_systems(evict_excess_active);
schedule.run(world);
}
#[test]
fn no_eviction_when_under_capacity() {
let mut world = World::new();
world.insert_resource(SimSpacePressure {
active_count: 0,
capacity: 5,
});
world.spawn((PlayerCharacter, make_pos(0, 0)));
// Spawn 3 active NPCs (under cap of 5)
let npc1 = world.spawn((Npc, ActiveSim, make_pos(5, 0), LastInteractionTick(10))).id();
let npc2 = world.spawn((Npc, ActiveSim, make_pos(6, 0), LastInteractionTick(20))).id();
let npc3 = world.spawn((Npc, ActiveSim, make_pos(7, 0), LastInteractionTick(30))).id();
run_evict_excess_active(&mut world);
// All should remain Active
assert!(world.get::<ActiveSim>(npc1).is_some());
assert!(world.get::<ActiveSim>(npc2).is_some());
assert!(world.get::<ActiveSim>(npc3).is_some());
}
#[test]
fn evicts_oldest_when_over_capacity() {
let mut world = World::new();
world.insert_resource(SimSpacePressure {
active_count: 0,
capacity: 2,
});
world.spawn((PlayerCharacter, make_pos(0, 0)));
// 3 NPCs, cap=2 → must evict 1 (the oldest: tick 10)
let oldest = world.spawn((Npc, ActiveSim, make_pos(5, 0), LastInteractionTick(10))).id();
let mid = world.spawn((Npc, ActiveSim, make_pos(6, 0), LastInteractionTick(20))).id();
let newest = world.spawn((Npc, ActiveSim, make_pos(7, 0), LastInteractionTick(30))).id();
run_evict_excess_active(&mut world);
assert!(world.get::<ActiveSim>(oldest).is_none(), "oldest evicted");
assert!(world.get::<BackgroundSim>(oldest).is_some(), "oldest → Background");
assert!(world.get::<ActiveSim>(mid).is_some(), "mid stays Active");
assert!(world.get::<ActiveSim>(newest).is_some(), "newest stays Active");
}
#[test]
fn eviction_skips_scope_pinned() {
let mut world = World::new();
world.insert_resource(SimSpacePressure {
active_count: 0,
capacity: 1,
});
world.spawn((PlayerCharacter, make_pos(0, 0)));
// 2 NPCs, cap=1. The oldest is ScopePinned → skip it, evict the other.
let pinned = world.spawn((
Npc, ActiveSim, ScopePinned,
ScopeTag::with(ScopeTagKind::KnownContact),
make_pos(5, 0), LastInteractionTick(5),
)).id();
let unpinned = world.spawn((
Npc, ActiveSim,
make_pos(6, 0), LastInteractionTick(20),
)).id();
run_evict_excess_active(&mut world);
assert!(world.get::<ActiveSim>(pinned).is_some(), "pinned NPC stays Active");
assert!(world.get::<ActiveSim>(unpinned).is_none(), "unpinned NPC evicted");
assert!(world.get::<BackgroundSim>(unpinned).is_some());
}
#[test]
fn eviction_demotes_to_state_saved_if_beyond_background_radius() {
let mut world = World::new();
world.insert_resource(SimSpacePressure {
active_count: 0,
capacity: 1,
});
world.spawn((PlayerCharacter, make_pos(0, 0)));
// NPC at distance 200 (beyond BACKGROUND_RADIUS=120) → StateSaved
let far = world.spawn((
Npc, ActiveSim,
make_pos(200, 0), LastInteractionTick(5),
)).id();
// NPC at distance 5 (within ACTIVE_RADIUS) → stays
let near = world.spawn((
Npc, ActiveSim,
make_pos(5, 0), LastInteractionTick(50),
)).id();
run_evict_excess_active(&mut world);
assert!(world.get::<ActiveSim>(far).is_none(), "far NPC evicted");
assert!(world.get::<StateSaved>(far).is_some(), "far NPC → StateSaved");
assert!(world.get::<ActiveSim>(near).is_some(), "near NPC stays Active");
}
#[test]
fn eviction_handles_npcs_without_last_interaction_tick() {
let mut world = World::new();
world.insert_resource(SimSpacePressure {
active_count: 0,
capacity: 1,
});
world.spawn((PlayerCharacter, make_pos(0, 0)));
// NPC without LastInteractionTick defaults to tick 0 (most stale)
let no_tick = world.spawn((Npc, ActiveSim, make_pos(5, 0))).id();
let with_tick = world.spawn((
Npc, ActiveSim,
make_pos(6, 0), LastInteractionTick(100),
)).id();
run_evict_excess_active(&mut world);
assert!(world.get::<ActiveSim>(no_tick).is_none(), "no-tick NPC evicted first");
assert!(world.get::<BackgroundSim>(no_tick).is_some());
assert!(world.get::<ActiveSim>(with_tick).is_some(), "with-tick NPC stays");
}
#[test]
fn sim_space_pressure_updated_after_eviction() {
let mut world = World::new();
world.insert_resource(SimSpacePressure {
active_count: 0,
capacity: 2,
});
world.spawn((PlayerCharacter, make_pos(0, 0)));
world.spawn((Npc, ActiveSim, make_pos(5, 0), LastInteractionTick(10)));
world.spawn((Npc, ActiveSim, make_pos(6, 0), LastInteractionTick(20)));
world.spawn((Npc, ActiveSim, make_pos(7, 0), LastInteractionTick(30)));
run_evict_excess_active(&mut world);
let pressure = world.resource::<SimSpacePressure>();
// active_count is set BEFORE eviction runs (it reads the pre-eviction count).
// The actual count changes via deferred commands, which apply after the system.
assert_eq!(pressure.active_count, 3, "pressure tracks pre-eviction count");
}
// -----------------------------------------------------------------------
// LastInteractionTick component tests (#97)
// -----------------------------------------------------------------------
#[test]
fn last_interaction_tick_defaults_to_zero() {
let tick = LastInteractionTick::default();
assert_eq!(tick.0, 0);
}
}
+1 -1
View File
@@ -66,12 +66,12 @@ fn snapshot_roundtrip_over_unix_socket() {
conversation_events: vec![],
conversation_ended: vec![],
follow_state: None,
examine_result: None,
character_pressure: None,
rng_seed: None,
poi_list: vec![],
examine_result: None,
player_knowledge: None,
save_result: None,
};
bridge
+1 -1
View File
@@ -52,12 +52,12 @@ fn snapshot_roundtrip_over_tcp() {
conversation_events: vec![],
conversation_ended: vec![],
follow_state: None,
examine_result: None,
character_pressure: None,
rng_seed: None,
poi_list: vec![],
examine_result: None,
player_knowledge: None,
save_result: None,
};
bridge
+2 -2
View File
@@ -41,12 +41,12 @@ fn fixture_snapshot(tick: u64, entities: Vec<VisibleEntity>) -> ObserverSnapshot
conversation_events: vec![],
conversation_ended: vec![],
follow_state: None,
examine_result: None,
character_pressure: None,
rng_seed: None,
poi_list: vec![],
examine_result: None,
player_knowledge: None,
save_result: None,
}
}
@@ -232,12 +232,12 @@ fn generate_msgpack_fixtures() {
conversation_events: vec![],
conversation_ended: vec![],
follow_state: None,
examine_result: None,
character_pressure: None,
rng_seed: None,
poi_list: vec![],
examine_result: None,
player_knowledge: None,
save_result: None,
};
write_fixture(
"snapshot_v2_full",
@@ -39,7 +39,6 @@
"z": 0
}
],
"examine_result": null,
"follow_state": null,
"game_time": {
"day": 0,
+314
View File
@@ -0,0 +1,314 @@
//! Information boundary negative test suite (D-010, D-030, ticket #272).
//!
//! THE core asymmetric information claim: entity X cannot see what entity Y
//! knows, unless the observation system explicitly grants it.
//!
//! These are NEGATIVE tests — they assert that information does NOT cross
//! boundaries. Each test uses `assert!(x.is_none())` or equivalent absence
//! patterns, not just "test passed because nothing happened."
//!
//! ## Test layers (D-030)
//!
//! Layer 1 (pure unit, no ECS):
//! - `player_kg_has_no_passive_npc_leakage` — KG starts empty, stays empty
//! - `save_state_npc_kg_isolation` — per-NPC KG serialization isolation
//! - `snapshot_excludes_entities_outside_los` — FOV geometry excludes far tiles
//!
//! Layer 2 (minimal ECS world, no subprocess):
//! - `background_npc_kg_not_updated_by_active_tier_events` — tier boundary holds
//!
//! Spec references: D-010 (info boundaries), D-026 (tiers), D-030 (testability),
//! D-041 (knowledge graph), Q-029 (save format)
use bevy_ecs::prelude::*;
use bevy_ecs::schedule::Schedule;
use settled_reach_server::knowledge::events::{
process_knowledge_events, KnowledgeEvent, KnowledgeEventQueue, KnowledgeEventType,
};
use settled_reach_server::knowledge::{
ContradictionDetectedQueue, EntityRegistry, KnowledgeGraph,
};
use settled_reach_server::knowledge::types::StableId;
use settled_reach_server::npc::{Npc, SecretSeverity};
use settled_reach_server::npc::relationships::RelationshipGraph;
use settled_reach_server::perception::query::{NaturalVision, PerceptionQuery};
use settled_reach_server::simulation::movement::{TilePosition, WalkabilityMap};
use settled_reach_server::simulation::save_state::{NpcSaveState, SaveStateV1, SAVE_FORMAT_VERSION};
use settled_reach_server::simulation::tier::{ActiveSim, BackgroundSim};
use settled_reach_server::simulation::time::TickRate;
use settled_reach_server::bridge::types::FacingDirection;
// ===========================================================================
// Layer 1 — Pure unit: no ECS world, no subprocess
// ===========================================================================
/// IB-1 (Layer 1): A fresh KnowledgeGraph contains no entries for any entity.
///
/// Core claim: player knowledge is never passively populated. The KG starts
/// empty and can only be written by `observe_entity()`, `record_knowledge()`,
/// or knowledge events processed by `process_knowledge_events`. Simply
/// existing in the simulation world does not leak an NPC's existence into
/// the player's knowledge graph.
///
/// Spec reference: D-010 principle 2 (information boundaries as first-class system)
#[test]
fn player_kg_has_no_passive_npc_leakage() {
let player_kg = KnowledgeGraph::new();
let npc_id = StableId(42);
// Negative assertion: a freshly created KG contains no entity references.
assert!(
player_kg.entities.get(&npc_id).is_none(),
"IB-1: fresh KnowledgeGraph must not contain any entity (passive leakage — D-010 principle 2)"
);
assert!(
player_kg.is_empty(),
"IB-1: KnowledgeGraph::new() must be completely empty"
);
// Negative assertion: spawning a bare ECS entity doesn't populate a KG.
// The knowledge graph is a component, not a global shared resource.
let mut world = World::new();
let player = world
.spawn(KnowledgeGraph::new())
.id();
// Spawn an NPC in the same world — no observation system runs.
let _npc = world.spawn((Npc, TilePosition::new(50, 50, 0))).id();
// Player's KG must be empty regardless of NPCs existing nearby.
let kg = world.get::<KnowledgeGraph>(player).unwrap();
assert!(
kg.entities.get(&npc_id).is_none(),
"IB-1: spawning an NPC in the world must not passively populate the player's KG"
);
assert!(
kg.is_empty(),
"IB-1: player KG must stay empty until an observation system explicitly populates it"
);
}
/// IB-2 (Layer 1): FOV geometry excludes positions beyond the vision range.
///
/// The observer snapshot system (compute_observer_snapshot) includes entities
/// by testing whether their tile position is in `VisibilityGeometry.visible_positions`.
/// This test verifies that the FOV computation — the upstream source of that set —
/// correctly excludes positions far from the observer, so no entity outside LOS
/// can ever appear in the snapshot.
///
/// Spec reference: D-010 principle 2, D-011 (symmetric shadowcasting), D-030 Layer 1
#[test]
fn snapshot_excludes_entities_outside_los() {
// All-walkable 100×100 map at z=0 — no walls to cast shadows.
let walkability = WalkabilityMap::new(100, 100, 1);
let observer_pos = TilePosition::new(5, 5, 0);
let facing = FacingDirection::North;
let geometry = NaturalVision.compute_geometry(&observer_pos, facing, &walkability);
// --- Far entity: 45 tiles away, well outside FOV range (~12 tiles) ---
let far_npc_pos = TilePosition::new(50, 5, 0);
assert!(
!geometry.visible_positions.contains(&(far_npc_pos.x, far_npc_pos.y)),
"IB-2: entity at {:?} (45 tiles from observer) must NOT be in FOV — \
observer snapshot would exclude this entity (fog of perception, D-010 principle 2)",
far_npc_pos
);
// --- Sanity check: the observer's own position is visible ---
assert!(
geometry.visible_positions.contains(&(observer_pos.x, observer_pos.y)),
"IB-2 sanity: observer's own position must always be in the FOV set"
);
// --- Additional sanity: an immediately adjacent tile (1 step) is visible ---
let adjacent_pos = TilePosition::new(6, 5, 0);
assert!(
geometry.visible_positions.contains(&(adjacent_pos.x, adjacent_pos.y)),
"IB-2 sanity: tile immediately adjacent to observer must be visible"
);
}
/// IB-4 (Layer 1): NPC save states do not bleed each other's KnowledgeGraphs.
///
/// `SaveStateV1.npc_states` is a flat `Vec<NpcSaveState>`. Each `NpcSaveState`
/// has its own optional `knowledge_graph: Option<KnowledgeGraph>`. After a
/// serialise → deserialise roundtrip:
/// - NPC_A's `NpcSaveState.knowledge_graph` contains ONLY NPC_A's own KG.
/// - NPC_B's `NpcSaveState.knowledge_graph` is `None` (Background tier,
/// no KG carried) — it must not be overwritten by NPC_A's KG data.
///
/// Spec reference: D-010 principle 2, D-026 (tier serialization), Q-029 (save format)
#[test]
fn save_state_npc_kg_isolation() {
let npc_a_id = StableId(1);
let npc_b_id = StableId(2);
// NPC_A (Active tier) carries a KG that has observed NPC_B.
let mut npc_a_kg = KnowledgeGraph::new();
// NPC_A has observed NPC_B at some position — this puts NPC_B in NPC_A's KG.
let _ = npc_a_kg.observe_entity(npc_b_id, TilePosition::new(10, 10, 0), 5);
let npc_a_state = NpcSaveState {
stable_id: npc_a_id,
position: TilePosition::new(5, 5, 0),
secret_severity: SecretSeverity::Minor,
relationships: None,
current_stress: 0,
tolerance_threshold: 20,
contentment: 50,
knowledge_graph: Some(npc_a_kg), // Active NPC carries KG
want: None,
secret: None,
routine: None,
information_inventory: None,
personality_traits: None,
tell_system: None,
skill_set: None,
combat_capability: None,
mood_state: None,
job_performance: None,
};
// NPC_B (Background tier) does not carry a KG.
let npc_b_state = NpcSaveState {
stable_id: npc_b_id,
position: TilePosition::new(20, 20, 0),
secret_severity: SecretSeverity::Minor,
relationships: None,
current_stress: 0,
tolerance_threshold: 20,
contentment: 50,
knowledge_graph: None, // Background NPC carries no KG
want: None,
secret: None,
routine: None,
information_inventory: None,
personality_traits: None,
tell_system: None,
skill_set: None,
combat_capability: None,
mood_state: None,
job_performance: None,
};
let save = SaveStateV1 {
format_version: SAVE_FORMAT_VERSION,
tick: 10,
tick_rate: TickRate::Full,
seed: 42,
player_knowledge: KnowledgeGraph::new(),
relationship_graph: RelationshipGraph::new(),
npc_states: vec![npc_a_state, npc_b_state],
};
// Roundtrip: serialize → deserialize.
let bytes = save.to_bytes().expect("IB-4: serialize SaveStateV1");
let recovered = SaveStateV1::from_bytes(&bytes).expect("IB-4: deserialize SaveStateV1");
// --- Negative assertion: NPC_B's state must NOT contain a KnowledgeGraph ---
let npc_b_recovered = recovered
.npc_states
.iter()
.find(|s| s.stable_id == npc_b_id)
.expect("IB-4: NPC_B must be present in recovered npc_states");
assert!(
npc_b_recovered.knowledge_graph.is_none(),
"IB-4: NPC_B's recovered state must not contain a KnowledgeGraph — \
serialization must not bleed NPC_A's KG data into NPC_B's entry (D-010 principle 2)"
);
// --- Sanity: NPC_A's state must contain its own KG (not lost in roundtrip) ---
let npc_a_recovered = recovered
.npc_states
.iter()
.find(|s| s.stable_id == npc_a_id)
.expect("IB-4: NPC_A must be present in recovered npc_states");
let kg = npc_a_recovered
.knowledge_graph
.as_ref()
.expect("IB-4: NPC_A's KG must survive roundtrip");
// NPC_A's KG entry for NPC_B is NPC_A's OBSERVATION DATA (where NPC_A saw NPC_B).
// This is not NPC_B's own KG — it's NPC_A's record of NPC_B's position.
assert!(
kg.entities.get(&npc_b_id).is_some(),
"IB-4 sanity: NPC_A's KG should still contain its observation of NPC_B after roundtrip"
);
}
// ===========================================================================
// Layer 2 — Minimal ECS world (no subprocess)
// ===========================================================================
/// IB-3 (Layer 2): `process_knowledge_events` only modifies the observer entity.
///
/// Background-tier NPC KnowledgeGraphs must not be modified when Active-tier
/// events are processed. The `process_knowledge_events` system routes events
/// via `event.observer` (an ECS Entity handle) — only the targeted entity's KG
/// is written. This test confirms that a Background-tier NPC, not named in any
/// event's `observer` field, has its KG left completely unchanged.
///
/// Spec reference: D-010 principle 2, D-026 (tier boundary), D-030 Layer 2
#[test]
fn background_npc_kg_not_updated_by_active_tier_events() {
let mut world = World::new();
// Required resources for process_knowledge_events.
world.init_resource::<KnowledgeEventQueue>();
world.init_resource::<ContradictionDetectedQueue>();
world.init_resource::<EntityRegistry>();
// Active-tier NPC: will be the observer in the knowledge event.
let active_npc = world
.spawn((Npc, ActiveSim, KnowledgeGraph::new()))
.id();
// Background-tier NPC: must NOT be affected.
let background_npc = world
.spawn((Npc, BackgroundSim, KnowledgeGraph::new()))
.id();
// A separate "observed" entity (the target of the DirectObservation).
// Register it in the EntityRegistry so process_knowledge_events can resolve its StableId.
let observed_entity = world.spawn_empty().id();
{
let mut registry = world.resource_mut::<EntityRegistry>();
registry.register(observed_entity);
}
// Push a DirectObservation event targeting only the Active NPC as observer.
// The Background NPC is not mentioned anywhere in this event.
world
.resource_mut::<KnowledgeEventQueue>()
.push(KnowledgeEvent {
observer: active_npc,
tick: 1,
event_type: KnowledgeEventType::DirectObservation {
target: observed_entity,
position: TilePosition::new(5, 5, 0),
},
});
// Run the knowledge event processing system.
let mut schedule = Schedule::default();
schedule.add_systems(process_knowledge_events);
schedule.run(&mut world);
// --- Negative assertion: Background NPC's KG must be completely unchanged ---
let bg_kg = world
.get::<KnowledgeGraph>(background_npc)
.expect("IB-3: BackgroundSim NPC must still have KnowledgeGraph component");
assert!(
bg_kg.is_empty(),
"IB-3: Background-tier NPC KG must not be modified by Active-tier events. \
process_knowledge_events must only update the event.observer entity (D-026 tier boundary, \
D-010 principle 2). Found {} entity entries and {} fact entries.",
bg_kg.entity_count(),
bg_kg.fact_count()
);
}
+60
View File
@@ -0,0 +1,60 @@
//! Layer 3 integration test entry point (D-030, ticket #200).
//!
//! ## Three-layer test architecture (D-030 sub-decision 3)
//!
//! ```text
//! Layer 1 — Fixture-based serialization (FAST, run on every edit)
//! Scope: Pure unit tests. No ECS world. No subprocess.
//! Tools: Rust #[test] + data structures directly.
//! Speed: <1ms each.
//! Files: tests/serialization.rs, tests/information_boundaries.rs (Layer 1 tests),
//! #[cfg(test)] mod tests within src/ modules
//!
//! Layer 2 — Mock subprocess / minimal ECS world (MEDIUM, run on every PR)
//! Scope: Minimal bevy App or World. Real systems, no real subprocess.
//! IPC roundtrip over Unix socket without spawning the binary.
//! Tools: bevy_ecs World + Schedule, or LocalBridge with in-process simulation.
//! Speed: 1ms100ms each.
//! Files: tests/bridge_ipc.rs, tests/bridge_tcp.rs,
//! tests/information_boundaries.rs (Layer 2 tests),
//! tests/determinism.rs, tests/movement.rs, tests/smoke.rs
//!
//! Layer 3 — Real subprocess integration (SLOW, run daily / pre-merge)
//! Scope: Full binary spawned as a child process. No mocks. Real IPC.
//! Exercises the complete path: spawn → handshake → tick → snapshot.
//! Tools: std::process::Command, TcpStream.
//! Speed: 1s15s each (process startup dominates).
//! Files: tests/layer3.rs, tests/integration/ (this module)
//! ```
//!
//! ## Layer 3 test guidelines
//!
//! - Always set a deadline for server startup (`LISTEN_TIMEOUT`).
//! - Always kill the child process in teardown (even on test failure — use a
//! RAII guard or drop the handle at end of test).
//! - Use `--port 0` to get a kernel-assigned port; parse `LISTENING:{port}` from
//! stdout to obtain the actual port.
//! - Serialize `PlayerInput` via `rmp_serde`, frame with `bridge::framing::write_framed`.
//! - Deserialize `ObserverSnapshot` via `rmp_serde` after `bridge::framing::read_framed`.
//!
//! Spec reference: D-030 (testability architecture), D-020 (subprocess IPC protocol)
// ---------------------------------------------------------------------------
// Stub: Layer 3 startup smoke test
// ---------------------------------------------------------------------------
/// Placeholder for future Layer 3 tests that require full subprocess setup.
///
/// Non-blocking tests that exercise the simulation binary end-to-end live in
/// `tests/layer3.rs`. This module is the organisational entry point for tests
/// that exercise multi-message Layer 3 scenarios (multi-tick sequences,
/// save/load roundtrip over IPC, protocol version negotiation).
///
/// See `tests/layer3.rs::server_subprocess_sends_snapshot_on_connect` for the
/// canonical Layer 3 pattern.
#[test]
fn layer3_module_entry_point_placeholder() {
// This test exists to verify the integration module compiles and is
// discovered by cargo test. Real Layer 3 scenario tests replace this.
// D-030 Layer 3 stubs are acceptable until the IPC handshake (#555) lands.
}
+16 -4
View File
@@ -72,7 +72,19 @@ fn server_subprocess_sends_snapshot_on_connect() {
let mut reader = BufReader::new(stream.try_clone().expect("clone stream for reader"));
let mut writer = BufWriter::new(stream);
// 4. Send one PlayerInput (idle tick 0)
// 4. Read the protocol handshake (first framed message, #555)
let handshake_frame = read_framed(&mut reader)
.expect("read handshake frame")
.expect("server closed connection before sending handshake");
let handshake: HandshakeMessage =
rmp_serde::from_slice(&handshake_frame).expect("deserialize HandshakeMessage");
assert_eq!(
handshake.protocol_version, PROTOCOL_VERSION,
"handshake protocol_version mismatch: got {}, expected {}",
handshake.protocol_version, PROTOCOL_VERSION
);
// 5. Send one PlayerInput (idle tick 0)
let inputs = vec![PlayerInput {
tick: 0,
action: PlayerAction::MoveNorth,
@@ -80,14 +92,14 @@ fn server_subprocess_sends_snapshot_on_connect() {
let payload = rmp_serde::to_vec_named(&inputs).expect("serialize PlayerInput");
write_framed(&mut writer, &payload).expect("send PlayerInput to server");
// 5. Read one ObserverSnapshot
// 6. Read one ObserverSnapshot
let response = read_framed(&mut reader)
.expect("read snapshot frame")
.expect("server closed connection before sending snapshot");
let snapshot: ObserverSnapshot =
rmp_serde::from_slice(&response).expect("deserialize ObserverSnapshot");
// 6. Assert protocol correctness (D-020)
// 7. Assert protocol correctness (D-020)
assert_eq!(
snapshot.version, PROTOCOL_VERSION,
"protocol version mismatch: got {}, expected {}",
@@ -105,7 +117,7 @@ fn server_subprocess_sends_snapshot_on_connect() {
.any(|e| matches!(e.kind, EntityKind::Player));
assert!(has_player, "snapshot must contain a Player entity");
// 7. Clean up: drop connection so the server exits its game loop
// 8. Clean up: drop connection so the server exits its game loop
drop(reader);
drop(writer);
+11 -5
View File
@@ -30,12 +30,12 @@ fn test_snapshot(tick: u64, entities: Vec<VisibleEntity>) -> ObserverSnapshot {
conversation_events: vec![],
conversation_ended: vec![],
follow_state: None,
examine_result: None,
character_pressure: None,
rng_seed: None,
poi_list: vec![],
examine_result: None,
player_knowledge: None,
save_result: None,
}
}
@@ -120,6 +120,12 @@ fn all_player_action_variants_roundtrip() {
target_entity_id: 42,
response_id: "kael-davan_d_001".to_string(),
},
PlayerAction::SaveGame {
path: "/tmp/test.msgpack".to_string(),
},
PlayerAction::LoadGame {
path: "/tmp/test.msgpack".to_string(),
},
];
for action in actions {
@@ -280,12 +286,12 @@ fn snapshot_v2_fields_roundtrip() {
conversation_events: vec![],
conversation_ended: vec![],
follow_state: None,
examine_result: None,
character_pressure: None,
rng_seed: None,
poi_list: vec![],
examine_result: None,
player_knowledge: None,
save_result: None,
};
let bytes = rmp_serde::to_vec_named(&snapshot).expect("serialize");
@@ -384,12 +390,12 @@ fn all_facing_direction_variants_roundtrip() {
conversation_events: vec![],
conversation_ended: vec![],
follow_state: None,
examine_result: None,
character_pressure: None,
rng_seed: None,
poi_list: vec![],
examine_result: None,
player_knowledge: None,
save_result: None,
};
let bytes = rmp_serde::to_vec_named(&snapshot).expect("serialize");
let decoded: ObserverSnapshot = rmp_serde::from_slice(&bytes).expect("deserialize");
@@ -1433,8 +1439,8 @@ fn serde_default_fields_fill_in_when_missing_from_wire() {
let decoded: ObserverSnapshot =
serde_json::from_value(minimal_json).expect("minimal JSON must deserialize");
// Version matches what was in the wire (13, simulating older server)
assert_eq!(decoded.version, 13);
// Version matches what was in the wire
assert_eq!(decoded.version, 14);
assert_eq!(decoded.tick, 42);
assert_eq!(decoded.entities.len(), 1);