diff --git a/bin/layers/local_panel/local_panel.cpp b/bin/layers/local_panel/local_panel.cpp
index d279e5c..9e8e743 100755
--- a/bin/layers/local_panel/local_panel.cpp
+++ b/bin/layers/local_panel/local_panel.cpp
@@ -50,5 +50,10 @@ namespace sandbox
         hack::log()(std::any_cast<std::string>(e.m_data));
     }
   }
+
+  void local_panel::update()
+  {
+
+  }
 }
 
diff --git a/bin/layers/opengl_panel/opengl_panel.cpp b/bin/layers/opengl_panel/opengl_panel.cpp
index 8905d04..361e21e 100755
--- a/bin/layers/opengl_panel/opengl_panel.cpp
+++ b/bin/layers/opengl_panel/opengl_panel.cpp
@@ -51,6 +51,11 @@ namespace sandbox
     hack::log()("on_attach");
   }
 
+  void opengl_panel::update()
+  {
+
+  }
+
   void opengl_panel::render()
   {
     m_cb_1.use();
diff --git a/bin/layers/test_panel/test_panel.cpp b/bin/layers/test_panel/test_panel.cpp
index 0bf47e6..655a0ac 100755
--- a/bin/layers/test_panel/test_panel.cpp
+++ b/bin/layers/test_panel/test_panel.cpp
@@ -34,5 +34,10 @@ namespace sandbox
       if (t == VE::event_type::MOUSE_BUTTON_PRESSED) hack::log()("once");
     }
   }
+
+  void test_panel::update()
+  {
+
+  }
 }
 
diff --git a/bin/layers/test_panel_2/test_panel_2.cpp b/bin/layers/test_panel_2/test_panel_2.cpp
index 03f50bd..d60613c 100755
--- a/bin/layers/test_panel_2/test_panel_2.cpp
+++ b/bin/layers/test_panel_2/test_panel_2.cpp
@@ -38,5 +38,10 @@ namespace sandbox
         hack::log()(std::any_cast<std::string>(e.m_data));
     }
   }
+
+  void test_panel_2::update()
+  {
+
+  }
 }
 
diff --git a/src/layer/layer.hpp b/src/layer/layer.hpp
index afc1dd3..69cd2d5 100755
--- a/src/layer/layer.hpp
+++ b/src/layer/layer.hpp
@@ -19,6 +19,7 @@ namespace VE
     public:
       virtual void on_attach() {};
       virtual void render() {};
+      virtual void update() {};
       virtual void on_event(event e) {};
 
     protected:
diff --git a/src/utils/define.hpp b/src/utils/define.hpp
index a010e77..f459283 100755
--- a/src/utils/define.hpp
+++ b/src/utils/define.hpp
@@ -7,6 +7,7 @@
   public:\
     void on_attach() override;\
     void render() override;\
+    void update() override;\
     void on_event(VE::event e) override
 
 #define VE_CONNECT(DEF_CLASS) VE::event_manager::instance().connect(std::bind(&DEF_CLASS::on_event, this, std::placeholders::_1));