diff --git a/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/UseCases/InputUseCase.java b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/UseCases/InputUseCase.java
new file mode 100644
index 0000000..33e91bc
--- /dev/null
+++ b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/UseCases/InputUseCase.java
@@ -0,0 +1,6 @@
+package org.ntlab.radishforandroidstudio.cactusClient.UseCases;
+
+public interface InputUseCase {
+
+    void OnUpdate(long interval);
+}
diff --git a/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/UseCases/OutputUseCase.java b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/UseCases/OutputUseCase.java
new file mode 100644
index 0000000..161b406
--- /dev/null
+++ b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/UseCases/OutputUseCase.java
@@ -0,0 +1,6 @@
+package org.ntlab.radishforandroidstudio.cactusClient.UseCases;
+
+public interface OutputUseCase {
+
+    void OnUpdate(long interval);
+}
diff --git a/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/UseCases/UseCase.java b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/UseCases/UseCase.java
new file mode 100644
index 0000000..254225f
--- /dev/null
+++ b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/UseCases/UseCase.java
@@ -0,0 +1,19 @@
+package org.ntlab.radishforandroidstudio.cactusClient.UseCases;
+
+import org.ntlab.radishforandroidstudio.framework.gameMain.GameBaseModelManager;
+
+public class UseCase{
+    private OutputUseCase output;
+    GameBaseModelManager gameBaseModelManager;
+
+
+    public UseCase(long interval) {
+      OnUpdate(interval);
+    }
+
+
+    public void OnUpdate(long interval){
+        output.OnUpdate(interval);
+    }
+
+}
diff --git a/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/controller/UpdateController.java b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/controller/UpdateController.java
new file mode 100644
index 0000000..9f080ae
--- /dev/null
+++ b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/controller/UpdateController.java
@@ -0,0 +1,11 @@
+package org.ntlab.radishforandroidstudio.cactusClient.controller;
+
+public class UpdateController {
+//
+//    UseCase useCase;
+//    InputUseCase inputUseCase;
+
+
+
+
+}
diff --git a/app/src/main/java/org/ntlab/radishforandroidstudio/framework/gameMain/RealTime3DFragment.java b/app/src/main/java/org/ntlab/radishforandroidstudio/framework/gameMain/RealTime3DFragment.java
index e283424..97bd72b 100644
--- a/app/src/main/java/org/ntlab/radishforandroidstudio/framework/gameMain/RealTime3DFragment.java
+++ b/app/src/main/java/org/ntlab/radishforandroidstudio/framework/gameMain/RealTime3DFragment.java
@@ -10,16 +10,18 @@
 import android.widget.LinearLayout;
 
 import org.ntlab.radishforandroidstudio.R;
+import org.ntlab.radishforandroidstudio.cactusClient.UseCases.OutputUseCase;
 import org.ntlab.radishforandroidstudio.framework.RWT.RWTSurfaceView;
 import org.ntlab.radishforandroidstudio.framework.model3D.Universe;
 import org.ntlab.radishforandroidstudio.framework.view3D.Camera3D;
 
-public class RealTime3DFragment extends RealTimeFragment{
+public class RealTime3DFragment extends RealTimeFragment implements OutputUseCase {
     protected Universe universe;
     protected Camera3D camera;
     protected RWTSurfaceView view;
     protected View parentView = null;
     protected GameBaseModelManager modelManager = null;
+//    public UseCase useCase = new UseCase();
 
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
@@ -44,6 +46,7 @@
     @Override
     protected void update(long interval) {
         progress(interval);
+        OnUpdate(interval);
         if (modelManager != null) {
             modelManager.update(interval);
         }
@@ -58,5 +61,12 @@
     public Universe getUniverse() {
         return universe;
     }
+
+
+    @Override
+    public void OnUpdate(long interval) {
+        update(interval);
+
+    }
 }