Updated knowledge

_tmp_map248_observers.js

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+const fs = require('fs');
+
+const path = 'k:/ghidra/crusader_map_viewer/map_renderer/.cache/scene-cache/remorse/map-248/b27ea0d8d2a1a391/scene.json';
+const scene = JSON.parse(fs.readFileSync(path, 'utf8'));
+const items = scene.items.filter((item) => item.shapeDefId === 'shape:1232');
+
+function qlo(item) {
+  return item.quality & 0xff;
+}
+
+function dist(a, b) {
+  return Math.hypot(a.world.x - b.world.x, a.world.y - b.world.y);
+}
+
+for (const item of items.filter((entry) => entry.npcPreview?.name === 'Observer')) {
+  const pairs = items.filter((candidate) => candidate.id !== item.id && candidate.frame !== item.frame && qlo(candidate) === qlo(item) && dist(candidate, item) <= 128);
+  console.log(JSON.stringify({
+    id: item.id,
+    src: item.mapSourceIndex,
+    frame: item.frame,
+    mapNum: item.mapNum,
+    npcNum: item.npcNum,
+    qlo: qlo(item),
+    world: item.world,
+    pairs: pairs.map((candidate) => ({
+      id: candidate.id,
+      src: candidate.mapSourceIndex,
+      frame: candidate.frame,
+      mapNum: candidate.mapNum,
+      npcNum: candidate.npcNum,
+      name: candidate.npcPreview?.name || null,
+      qlo: qlo(candidate)
+    }))
+  }));
+}