AI: fix relationship lookup; classify citizen/hacked turrets

m_Relationship is DEFINE_UTLVECTOR (FIELD_CUSTOM), not FIELD_EMBEDDED, so the
datamap scan always returned -1 and every NPC fell back to the model
heuristic. Resolve it as FIELD_CUSTOM with an embedded fallback.

Floor turrets never add relationship rows when friendly: CNPC_FloorTurret
overrides Classify() to CLASS_PLAYER_ALLY for citizen-built
(SF_FLOOR_TURRET_CITIZEN) and Alyx-hacked turrets. Read m_spawnflags and
m_bHackedByAlyx from the server instead.

Widen the datamap offset window (0x4..0x4000) for derived-class fields and
log the new offsets plus turret state in the NPC debug line.

1 files changed, 15 insertions, 2 deletions

diff --git a/src/esp.cpp b/src/esp.cpp
index b09588f..40e00f6 100644
--- a/src/esp.cpp
+++ b/src/esp.cpp
@@ -148,9 +148,18 @@ static bool model_is_neutral(const char *m) {
   return false;
 }
 
+static bool model_is_floor_turret(const char *m) {
+  return m && strstr(m, "floor_turret");
+}
+
 static bool npc_is_friendly(int idx, const char *model, int local_idx,
                             bool &neutral) {
   int rel = server_npc_relation(idx, local_idx);
+  int turret = -1;
+  // Citizen-built and Alyx-hacked turrets never add an m_Relationship row;
+  // their Classify() (CLASS_PLAYER_ALLY) comes from server runtime state.
+  if (model_is_floor_turret(model))
+    turret = server_npc_turret_flags(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.
@@ -163,9 +172,9 @@ static bool npc_is_friendly(int idx, const char *model, int local_idx,
   }
   if (idx > 0 && idx < 2048 && rel_cache[idx] != rel) {
     rel_cache[idx] = rel;
-    logd("npc %d (%s): relation=%d followtarget=%d local=%d", idx,
+    logd("npc %d (%s): relation=%d followtarget=%d turret=%d local=%d", idx,
          model ? model : "?", rel,
-         (int)server_npc_has_follow_target(idx), local_idx);
+         (int)server_npc_has_follow_target(idx), turret, local_idx);
   }
   if (rel == 3) { // D_LI
     neutral = false;
@@ -179,6 +188,10 @@ static bool npc_is_friendly(int idx, const char *model, int local_idx,
     neutral = false;
     return false;
   }
+  if (turret >= 0) {
+    neutral = false;
+    return turret != 0;
+  }
   // Bugbait-controlled antlions follow a target even when their default
   // relationship was never rewritten.
   if (model && strstr(model, "antlion") &&