diff --git a/hcore/include/director/director.h b/hcore/include/director/director.h
index 5829718..8c5b409 100644
--- a/hcore/include/director/director.h
+++ b/hcore/include/director/director.h
@@ -2,6 +2,7 @@
 #define DIRECTOR_H
 
 #include <config.h>
+#include <goal.h>
 
 namespace hk {
 namespace director {
@@ -10,6 +11,8 @@ class Director {
 public:
     Director() = default;
     ~Director() = default;
+
+    Goal purpose;
 };
 
 } // namespace director
diff --git a/hcore/include/goal.h b/hcore/include/goal.h
index afdcd4b..d38222f 100644
--- a/hcore/include/goal.h
+++ b/hcore/include/goal.h
@@ -5,13 +5,10 @@
 
 namespace hk {
 
-class Goal {
+class Goal : public simulator::Scene {
 public:
-    Goal(const simulator::Scene& scene) : scene(scene) {}
+    Goal() = default;
     ~Goal() = default;
-
-private:
-    simulator::Scene scene;
 };
 
 } // namespace hk
diff --git a/hcore/include/simulator/scene.h b/hcore/include/simulator/scene.h
index ea3e15b..2300866 100644
--- a/hcore/include/simulator/scene.h
+++ b/hcore/include/simulator/scene.h
@@ -14,7 +14,7 @@ class Scene
 public:
     using Id = uint32_t;
 
-    Scene() :
+    Scene(void) :
         cursor(commands)
     {}
     ~Scene() = default;
diff --git a/main.cpp b/main.cpp
index e282edb..13bd0e6 100644
--- a/main.cpp
+++ b/main.cpp
@@ -2,7 +2,7 @@
 
 int main(int argc, char **argv)
 {
-	Mind	mind;
+	hk::Mind	mind;
 
 	return 0;
 }