diff --git a/server/gameserver/android_agent.cc b/server/gameserver/android_agent.cc
index e8fdbd2b..560c561b 100644
--- a/server/gameserver/android_agent.cc
+++ b/server/gameserver/android_agent.cc
@@ -86,18 +86,6 @@ behaviac::EBTStatus AndroidAgent::DoRandomWalk()
                  return behaviac::BT_RUNNING;
              }
          };
-    co->event_cb =
-         [this, context]
-         (bool is_test, bool& has_event) mutable
-         {
-             has_event = context->last_attacker.Get() && !context->last_attacker.Get()->dead ? true : false;
-             if (!is_test && has_event) {
-                 FireEvent("OnAttacked",
-                           context->last_attacker.Get()->GetUniId(),
-                           context->last_attacked_frameno);
-             }
-         };
-
     return StartCoroutine(co);
 }
 
@@ -167,17 +155,6 @@ behaviac::EBTStatus AndroidAgent::DoRandomShot()
                  return behaviac::BT_RUNNING;
              }
          };
-    co->event_cb =
-         [this, context]
-         (bool is_test, bool& has_event) mutable
-         {
-             has_event = context->last_attacker.Get() && !context->last_attacker.Get()->dead ? true : false;
-             if (!is_test && has_event) {
-                 FireEvent("OnAttacked",
-                           context->last_attacker.Get()->GetUniId(),
-                           context->last_attacked_frameno);
-             }
-         };
     return StartCoroutine(co);
 }
 
@@ -255,11 +232,6 @@ behaviac::EBTStatus AndroidAgent::DoAttack()
                  return behaviac::BT_RUNNING;
              }
          };
-    co->event_cb =
-         [this, context]
-         (bool is_test, bool& has_event) mutable
-         {
-         };
     return StartCoroutine(co);
 }
 
@@ -360,11 +332,6 @@ behaviac::EBTStatus AndroidAgent::DoPursuit()
                  return behaviac::BT_RUNNING;
              }
          };
-    co->event_cb =
-         [this, context]
-         (bool is_test, bool& has_event) mutable
-         {
-         };
     return StartCoroutine(co);
 }
 
diff --git a/server/gameserver/base_agent.cc b/server/gameserver/base_agent.cc
index dee4c8c1..dfb5b4b1 100644
--- a/server/gameserver/base_agent.cc
+++ b/server/gameserver/base_agent.cc
@@ -67,7 +67,7 @@ void BtEvent::FireEvent(BaseAgent* agent)
 
 bool BtCoroutine::HasEvent()
 {
-
+    return false;
 }
 
 void BtCoroutine::FireEvent()
@@ -115,23 +115,19 @@ bool BaseAgent::IsGameOver()
 void BaseAgent::Exec()
 {
     behaviac::EBTStatus status = f8::BtMgr::Instance()->BtExec(this);
-    if (status == behaviac::BT_RUNNING && coroutine_ && coroutine_->event_cb) {
+    if (status == behaviac::BT_RUNNING && coroutine_ && coroutine_->HasEvent()) {
 #ifdef DEBUG1
         DumpBt(this);
 #endif
-        bool has_event = false;
-        coroutine_->event_cb(true, has_event);
-        if (has_event) {
-            status_= behaviac::BT_INVALID;
-            auto old_coroutine = coroutine_;
-            coroutine_ = nullptr;
-            GetOwner()->shot_hold = false;
-            old_coroutine->event_cb(false, has_event);
-            old_coroutine = nullptr;
+        status_= behaviac::BT_INVALID;
+        auto old_coroutine = coroutine_;
+        coroutine_ = nullptr;
+        GetOwner()->shot_hold = false;
+        old_coroutine->FireEvent();
+        old_coroutine = nullptr;
 #ifdef DEBUG1
-            a8::XPrintf("FireEvent OnAttacked\n", {});
+        a8::XPrintf("FireEvent OnAttacked\n", {});
 #endif
-        }
     }
 }
 
@@ -189,14 +185,12 @@ behaviac::EBTStatus BaseAgent::CoAttackTarget(int target_id)
         return behaviac::BT_FAILURE;
     }
 
-    auto context = A8_MAKE_SMART_ANON_STRUCT_SHARED
+    auto context = MAKE_BTCONTEXT
         (
-         CreatureWeakPtr owner;
          CreatureWeakPtr target;
          long long frameno = 0;
          long long last_pursuit_frameno = 0;
          );
-    context->owner = GetOwner()->GetWeakPtrRef();
     context->target = target;
     context->frameno = GetOwner()->room->GetFrameNo();
     context->last_pursuit_frameno = GetOwner()->room->GetFrameNo();
@@ -273,11 +267,6 @@ behaviac::EBTStatus BaseAgent::CoAttackTarget(int target_id)
             }
             return behaviac::BT_RUNNING;
         };
-    co->event_cb =
-        [this, context]
-        (bool is_test, bool& has_event) mutable
-        {
-        };
     return StartCoroutine(co);
 }
 
@@ -355,17 +344,6 @@ behaviac::EBTStatus BaseAgent::DoIdle(int min_time, int max_time)
                  return behaviac::BT_SUCCESS;
              }
          };
-    co->event_cb =
-         [this, context]
-         (bool is_test, bool& has_event) mutable
-         {
-             has_event = context->last_attacker.Get() && !context->last_attacker.Get()->dead ? true : false;
-             if (!is_test && has_event) {
-                 FireEvent("OnAttacked",
-                           context->last_attacker.Get()->GetUniId(),
-                           context->last_attacked_frameno);
-             }
-         };
     return StartCoroutine(co);
 }
 
diff --git a/server/gameserver/base_agent.h b/server/gameserver/base_agent.h
index cd92f1d6..0a0db081 100644
--- a/server/gameserver/base_agent.h
+++ b/server/gameserver/base_agent.h
@@ -22,8 +22,8 @@ private:
 
 };
 
-#define MAKE_BTCONTEXT(owner, ...)           \
-[] ()                                       \
+#define MAKE_BTCONTEXT(...)           \
+[] (CreatureWeakPtr owner, BaseAgent* agent)        \
 {                                               \
 struct Context : public BtContext, public std::enable_shared_from_this<Context> \
 {                                               \
@@ -34,14 +34,14 @@ struct Context : public BtContext, public std::enable_shared_from_this<Context>
 };                                              \
 auto context = std::make_shared<Context>(); \
 context->owner = owner;    \
-}()
+return context;    \
+}(GetOwner()->GetWeakPtrRef(), this)
 
 struct BtCoroutine
 {
     std::any context;
     const char* name = nullptr;
     std::function<behaviac::EBTStatus()> runing_cb;
-    std::function<void(bool, bool&)> event_cb;
     long long sleep_end_frameno = 0;
     int sleep_time = 0;
 
diff --git a/server/gameserver/hero_agent.cc b/server/gameserver/hero_agent.cc
index 3e7f0c2f..80f6039c 100644
--- a/server/gameserver/hero_agent.cc
+++ b/server/gameserver/hero_agent.cc
@@ -79,17 +79,6 @@ behaviac::EBTStatus HeroAgent::DoRandomWalk()
                  return behaviac::BT_RUNNING;
              }
          };
-    co->event_cb =
-         [this, context]
-         (bool is_test, bool& has_event) mutable
-         {
-             has_event = context->last_attacker.Get() && !context->last_attacker.Get()->dead ? true : false;
-             if (!is_test && has_event) {
-                 FireEvent("OnAttacked",
-                           context->last_attacker.Get()->GetUniId(),
-                           context->last_attacked_frameno);
-             }
-         };
     return StartCoroutine(co);
 }
 
@@ -154,17 +143,6 @@ behaviac::EBTStatus HeroAgent::DoRandomShot()
                  return behaviac::BT_RUNNING;
              }
          };
-    co->event_cb =
-         [this, context]
-         (bool is_test, bool& has_event) mutable
-         {
-             has_event = context->last_attacker.Get() && !context->last_attacker.Get()->dead ? true : false;
-             if (!is_test && has_event) {
-                 FireEvent("OnAttacked",
-                           context->last_attacker.Get()->GetUniId(),
-                           context->last_attacked_frameno);
-             }
-         };
     return StartCoroutine(co);
 }
 
@@ -273,15 +251,6 @@ behaviac::EBTStatus HeroAgent::DoAttack()
                  return behaviac::BT_RUNNING;
              }
          };
-    co->event_cb =
-         [this, context]
-         (bool is_test, bool& has_event) mutable
-         {
-             has_event = context->last_attacker.Get() && !context->last_attacker.Get()->dead ? true : false;
-             if (!is_test && has_event) {
-                 FireEvent("OnMasterAttackTarget", context->last_attacker.Get()->GetUniId());
-             }
-         };
     return StartCoroutine(co);
 }
 
@@ -382,11 +351,6 @@ behaviac::EBTStatus HeroAgent::DoPursuit()
                  return behaviac::BT_RUNNING;
              }
          };
-    co->event_cb =
-         [this, context]
-         (bool is_test, bool& has_event) mutable
-         {
-         };
     return StartCoroutine(co);
 }
 
@@ -465,11 +429,6 @@ behaviac::EBTStatus HeroAgent::DoHelpAttack(int target_uniid)
                  return behaviac::BT_RUNNING;
              }
          };
-    co->event_cb =
-         [this, context]
-         (bool is_test, bool& has_event) mutable
-         {
-         };
     return StartCoroutine(co);
 }
 
@@ -594,11 +553,6 @@ behaviac::EBTStatus HeroAgent::DoFollowMaster()
                  return behaviac::BT_RUNNING;
              }
          };
-    co->event_cb =
-         [this, context]
-         (bool is_test, bool& has_event) mutable
-         {
-         };
     return StartCoroutine(co);
 }