diff --git a/server/gameserver/bullet.cc b/server/gameserver/bullet.cc
index 03d940d2..d46c9a4e 100644
--- a/server/gameserver/bullet.cc
+++ b/server/gameserver/bullet.cc
@@ -775,28 +775,20 @@ void Bullet::ClearBuffList()
 
 void Bullet::ProcFlyHook(Entity* target)
 {
-    float distance = sender.Get()->GetPos().Distance(GetPos());
+    ClearBuffList();
+    float distance = born_pos.Distance(GetPos());
     if (distance < 0.001f) {
         return;
     }
 
-    a8::Vec2 new_dir = GetPos() - sender.Get()->GetPos();
-    new_dir.Normalize();
     if (target->IsCreature(room)) {
         Creature* c = (Creature*)target;
+#if 0
         room->frame_event.AddPropChg(c->GetWeakPtrRef(), kPropBeHook, 0, sender.Get()->GetUniId());
-
-        a8::Vec2 old_dir = c->GetMoveDir();
-        new_dir.x = -new_dir.x;
-        new_dir.y = -new_dir.y;
-        c->SetMoveDir(new_dir);
-        c->_UpdateMove(distance);
-        c->SetMoveDir(old_dir);
+#endif
+        c->AutoNavigation(born_pos, gun_meta->i->bullet_speed() * 2);
     } else {
-        a8::Vec2 old_dir = sender.Get()->GetMoveDir();
-        sender.Get()->SetMoveDir(new_dir);
-        sender.Get()->_UpdateMove(distance);
-        sender.Get()->SetMoveDir(old_dir);
+        sender.Get()->AutoNavigation(GetPos(), gun_meta->i->bullet_speed() * 2);
     }
 
 }
diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index 412c0db2..7e1c7e7d 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -177,7 +177,7 @@ void InternalShot(Creature* c,
             return;
         }
     }
-    if (!skill_meta) {
+    if (!skill_meta || weapon_meta->i->equip_type() == EQUIP_TYPE_THROW) {
         c->room->frame_event.AddShot(c->GetWeakPtrRef());
     }
     int invincible_buff_uniid = 0;
@@ -3486,3 +3486,58 @@ void Creature::_UpdateSpecMove()
         }
     }
 }
+
+void Creature::AutoNavigation(a8::Vec2 target_pos, float speed)
+{
+    float distance = GetPos().Distance(target_pos);
+    if (distance < 0.001f) {
+        return;
+    }
+    if (speed < 0.001f) {
+        return;
+    }
+
+    struct NavContext
+    {
+        CreatureWeakPtr c;
+        a8::Vec2 src_pos;
+        a8::Vec2 target_pos;
+        a8::Vec2 dir;
+        int exec_frameno = 0;
+        float speed = 0.0f;
+        float distance = 0.0f;
+    };
+    NavContext* context = new NavContext();
+    context->c = GetWeakPtrRef();
+    context->src_pos = GetPos();
+    context->target_pos = target_pos;
+    context->dir = (target_pos - GetPos());
+    context->dir.Normalize();
+    context->speed = speed;
+    context->distance = distance;
+    room->xtimer.AddRepeatTimerAndAttach
+        (1,
+         a8::XParams()
+         .SetSender(context),
+         [] (const a8::XParams& param)
+         {
+             NavContext* context = (NavContext*)param.sender.GetUserData();
+             ++context->exec_frameno;
+
+             Room* room = context->c.Get()->room;
+             Creature* c = context->c.Get();
+
+             a8::Vec2 old_pos = c->GetPos();
+             float move_length = context->speed / (float)SERVER_FRAME_RATE;
+             float move_distance = std::min(move_length * context->exec_frameno, context->distance);
+             a8::Vec2 new_pos = context->src_pos + context->dir * move_distance;
+             c->SetPos(new_pos);
+             if (c->CheckCollision()) {
+                 c->SetPos(old_pos);
+                 room->xtimer.DeleteTimer(room->xtimer.GetRunningTimer());
+             } else {
+
+             }
+         },
+         &xtimer_attacher.timer_list_);
+}
diff --git a/server/gameserver/creature.h b/server/gameserver/creature.h
index f1f4ac87..49e12a94 100644
--- a/server/gameserver/creature.h
+++ b/server/gameserver/creature.h
@@ -275,6 +275,7 @@ class Creature : public MoveableEntity
     float GetAttrAbs(int attr_id);
     float GetAttrRate(int attr_id);
     void RecalcDtoAttr();
+    void AutoNavigation(a8::Vec2 target_pos, float speed);
 
 protected:
     virtual void OnBuffRemove(Buff& buff);