From f87b7fdfba2e7483ae38794efa3f3cd9c0c761ac Mon Sep 17 00:00:00 2001
From: salmonik <salmonik@tuta.io>
Date: Tue, 3 Nov 2026 22:54:31 +0100
Subject: AI: debug-log NPC relation changes

---
 src/esp.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/esp.cpp')

diff --git a/src/esp.cpp b/src/esp.cpp
index 0966ff5..b09588f 100644
--- a/src/esp.cpp
+++ b/src/esp.cpp
@@ -151,6 +151,22 @@ static bool model_is_neutral(const char *m) {
 static bool npc_is_friendly(int idx, const char *model, int local_idx,
                             bool &neutral) {
   int rel = server_npc_relation(idx, local_idx);
+  // Debug-only: relation values are the authoritative answer and are the
+  // first thing to check when a friendly NPC still looks hostile. Logged only
+  // when an entity's relation changes, so this does not flood the log.
+  static int rel_cache[2048];
+  static bool rel_cache_init = false;
+  if (!rel_cache_init) {
+    for (int i = 0; i < 2048; i++)
+      rel_cache[i] = -999;
+    rel_cache_init = true;
+  }
+  if (idx > 0 && idx < 2048 && rel_cache[idx] != rel) {
+    rel_cache[idx] = rel;
+    logd("npc %d (%s): relation=%d followtarget=%d local=%d", idx,
+         model ? model : "?", rel,
+         (int)server_npc_has_follow_target(idx), local_idx);
+  }
   if (rel == 3) { // D_LI
     neutral = false;
     return true;
-- 
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