feat: player knowledge layer - aging price intel and seen ships

2026-06-12 14:34:22 +00:00
parent 3afb5b829f
commit 06957c65e1
2 changed files with 69 additions and 1 deletions
@@ -1 +1,27 @@
-export function markSeen() {}
+import { playerSystem } from './player.js';
+import { shipsIn } from './npc.js';
+
+// Best price intel the player has for a planet: personal dock visit
+// vs. news that has reached the player's current location. Caches the
+// winner in the price book so intel never gets worse.
+export function playerKnownPrices(world, planetId) {
+  const p = world.player;
+  const sys = playerSystem(world);
+  if (sys == null) return p.priceBook[planetId] ?? null;
+  const planet = world.galaxy.planets[planetId];
+  const news = world.news.knownPrices(planetId, world.hops[sys][planet.systemId], world.t);
+  const book = p.priceBook[planetId] ?? null;
+  let best = book;
+  if (news && (!best || news.time > best.time)) best = news;
+  if (best && (!book || best.time > book.time)) p.priceBook[planetId] = best;
+  return best ? { time: best.time, prices: best.prices, ageDays: world.t - best.time } : null;
+}
+
+// Called by the world's observe heartbeat: every concrete ship sharing
+// the player's system becomes "seen" — its cloud is now player-visible forever.
+export function markSeen(world) {
+  if (!world.player.alive) return;
+  const sys = playerSystem(world);
+  if (sys == null) return;
+  for (const { npc } of shipsIn(world, sys)) world.player.seenNpcs.add(npc.id);
+}