feat(memory): record need crisis, recovery, and goal change events

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/src/systems/npcBrainSystem.ts

@@ -5,6 +5,7 @@ import {
 import type { World } from '../ecs/World.js';
 import type { GameMap } from '../map/GameMap.js';
 import { findPath } from '../map/pathfinding.js';
+import type { EventMemoryService } from '../llm/eventMemoryService.js';
 
 function closestPOI(map: GameMap, from: Position, type: 'food' | 'rest'): Position | null {
   const pois = map.getPointsOfInterest(type);
@@ -25,7 +26,7 @@ function directionTo(from: Position, to: Position): number {
   return dy > 0 ? Direction.DOWN : Direction.UP;
 }
 
-export function npcBrainSystem(world: World, map: GameMap): void {
+export function npcBrainSystem(world: World, map: GameMap, eventMemoryService?: EventMemoryService): void {
   for (const entity of world.query('npcBrain', 'needs', 'movement', 'position')) {
     const brain = world.getComponent<NPCBrain>(entity, 'npcBrain')!;
     const needs = world.getComponent<Needs>(entity, 'needs')!;
@@ -40,21 +41,54 @@ export function npcBrainSystem(world: World, map: GameMap): void {
 
     // Check if at goal destination — recover needs
     if (brain.currentGoal === 'eat' && movement.state === 'idle') {
+      const prevHunger = needs.hunger;
       needs.hunger = Math.min(100, needs.hunger + 20);
+      if (eventMemoryService && prevHunger < HUNGER_THRESHOLD && needs.hunger >= HUNGER_THRESHOLD) {
+        const name = world.getComponent<string>(entity, 'name') ?? 'Unknown';
+        eventMemoryService.record(entity, {
+          type: 'need_recovery',
+          tick: 0,
+          need: 'hunger',
+          detail: `${name} satisfied their hunger`,
+        });
+      }
       brain.currentGoal = null;
     }
     if (brain.currentGoal === 'rest' && movement.state === 'idle') {
+      const prevEnergy = needs.energy;
       needs.energy = Math.min(100, needs.energy + 20);
+      if (eventMemoryService && prevEnergy < ENERGY_THRESHOLD && needs.energy >= ENERGY_THRESHOLD) {
+        const name = world.getComponent<string>(entity, 'name') ?? 'Unknown';
+        eventMemoryService.record(entity, {
+          type: 'need_recovery',
+          tick: 0,
+          need: 'energy',
+          detail: `${name} recovered their energy`,
+        });
+      }
       brain.currentGoal = null;
     }
 
     // Determine new goal based on needs priority
+    const prevGoal = brain.currentGoal;
     let goal: 'rest' | 'eat' | 'wander' = 'wander';
     if (needs.energy < ENERGY_THRESHOLD) goal = 'rest';
     else if (needs.hunger < HUNGER_THRESHOLD) goal = 'eat';
 
     brain.currentGoal = goal;
 
+    if (eventMemoryService && brain.currentGoal !== prevGoal && prevGoal !== null) {
+      const name = world.getComponent<string>(entity, 'name') ?? 'Unknown';
+      const goalLabels: Record<string, string> = { wander: 'wandering', eat: 'looking for food', rest: 'looking for rest' };
+      eventMemoryService.record(entity, {
+        type: 'goal_change',
+        tick: 0,
+        oldGoal: prevGoal,
+        newGoal: brain.currentGoal ?? 'idle',
+        detail: `${name} started ${goalLabels[brain.currentGoal ?? ''] ?? brain.currentGoal}`,
+      });
+    }
+
     // Pick target based on goal
     let target: Position | null = null;
     if (goal === 'eat') {