diff --git a/server/gameserver/hero.cc b/server/gameserver/hero.cc
index 11000d7..bd24dc4 100644
--- a/server/gameserver/hero.cc
+++ b/server/gameserver/hero.cc
@@ -10,6 +10,7 @@
 #include "hero.ai.h"
 #include "obstacle.h"
 #include "collider.h"
+#include "bullet.h"
 
 Hero::Hero():Creature()
 {
@@ -74,6 +75,31 @@ void Hero::Update(int delta_time)
     ++updated_times_;
 }
 
+void Hero::OnBulletHit(Bullet* bullet)
+{
+    if (IsInvincible()) {
+        return;
+    }
+    if (!IsDead(room) && (bullet->IsBomb() || bullet->sender.Get()->team_id != team_id)) {
+        float dmg = bullet->GetAtk() * (1 + bullet->sender.Get()->GetAttrRate(kHAT_Atk)) +
+            bullet->sender.Get()->GetAttrAbs(kHAT_Atk);
+        float def = ability.def * (1 + GetAttrRate(kHAT_Def)) +
+            GetAttrAbs(kHAT_Def);
+        float finaly_dmg = dmg * (1 - def/MetaMgr::Instance()->K);
+        finaly_dmg = std::max(finaly_dmg, 0.0f);
+#if 0
+        sender->stats.damage_amount_out += finaly_dmg;
+#endif
+        if (bullet->meta->buff_meta) {
+            MustBeAddBuff(this, bullet->meta->i->buffid());
+        }
+        DecHP(finaly_dmg,
+              bullet->sender.Get()->GetEntityUniId(),
+              bullet->sender.Get()->GetName(),
+              bullet->gun_meta->i->id());
+    }
+}
+
 float Hero::GetSpeed()
 {
     float speed = meta->i->move_speed();
@@ -246,3 +272,8 @@ void Hero::DetachFromMaster()
         detached_ = true;
     }
 }
+
+void Hero::DecHP(float dec_hp, int killer_id, const std::string& killer_name, int weapon_id)
+{
+
+}
diff --git a/server/gameserver/hero.h b/server/gameserver/hero.h
index 5b09f18..ee52e6f 100644
--- a/server/gameserver/hero.h
+++ b/server/gameserver/hero.h
@@ -26,8 +26,9 @@ public:
     virtual void Initialize() override;
     virtual void FillMFObjectPart(Room* room, Human* hum, cs::MFObjectPart* part_data) override;
     virtual void FillMFObjectFull(Room* room, Human* hum, cs::MFObjectFull* full_data) override;
-
+    virtual void OnBulletHit(Bullet* bullet) override;
     virtual void Update(int delta_time) override;
+    virtual void DecHP(float dec_hp, int killer_id, const std::string& killer_name, int weapon_id) override;
 
     virtual float GetSpeed() override;
     virtual float GetRadius() override;