diff --git a/core/src/netwerkprog/game/client/MainGame.java b/core/src/netwerkprog/game/client/MainGame.java
index 77ab49d..613c3ba 100644
--- a/core/src/netwerkprog/game/client/MainGame.java
+++ b/core/src/netwerkprog/game/client/MainGame.java
@@ -27,7 +27,6 @@ import netwerkprog.game.util.data.Data;
 import netwerkprog.game.util.data.character.DamageData;
 import netwerkprog.game.util.data.character.MoveData;
 import netwerkprog.game.util.data.connection.NameData;
-import netwerkprog.game.util.data.connection.ReadyData;
 import netwerkprog.game.util.data.connection.TeamData;
 import netwerkprog.game.util.data.connection.TurnData;
 import netwerkprog.game.util.game.Faction;
diff --git a/core/src/netwerkprog/game/util/application/GameApplicationConfiguration.java b/core/src/netwerkprog/game/util/application/GameApplicationConfiguration.java
index ffdbdd8..75caf06 100644
--- a/core/src/netwerkprog/game/util/application/GameApplicationConfiguration.java
+++ b/core/src/netwerkprog/game/util/application/GameApplicationConfiguration.java
@@ -6,36 +6,6 @@ import com.badlogic.gdx.backends.lwjgl.LwjglApplicationConfiguration;
  * custom application config class  for the game
  */
 public class GameApplicationConfiguration extends LwjglApplicationConfiguration {
-    /**
-     * makes a new configuration with the given parameters
-     * @param width the width (in pixels)
-     * @param height the height (in pixels)
-     * @param fullscreen whether the app should run in fullscreen
-     */
-    public GameApplicationConfiguration(int width, int height, boolean fullscreen) {
-        super();
-        super.width = width;
-        super.height = height;
-        super.fullscreen = fullscreen;
-    }
-
-    /**
-     * makes a new configuration with the given parameters.
-     * No fullscreen
-     * @param width the width (in pixels)
-     * @param height the height (in pixels)
-     */
-    public GameApplicationConfiguration(int width, int height) {
-        this(width,height,false);
-    }
-
-    /**
-     * makes a new configuration with standard full hd width and height
-     */
-    public GameApplicationConfiguration() {
-        this(1920,1080,false);
-    }
-
     /**
      * Makes a new configuration with the given parameters
      * @param title the title of the window
@@ -61,13 +31,4 @@ public class GameApplicationConfiguration extends LwjglApplicationConfiguration
     public GameApplicationConfiguration(String title, int width, int height) {
         this(title,width,height,false);
     }
-
-    /**
-     * Makes a new configuration with the given title
-     * the window will be 1920 x 1080 and fullscreen will be off
-     * @param title the window title
-     */
-    public GameApplicationConfiguration(String title) {
-        this(title, 1920,1080);
-    }
 }
diff --git a/core/src/netwerkprog/game/util/application/Updatable.java b/core/src/netwerkprog/game/util/application/Updatable.java
deleted file mode 100644
index 48f9aba..0000000
--- a/core/src/netwerkprog/game/util/application/Updatable.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package netwerkprog.game.util.application;
-
-public interface Updatable {
-    void update(double deltaTime);
-}
diff --git a/core/src/netwerkprog/game/util/data/Data.java b/core/src/netwerkprog/game/util/data/Data.java
index fb94f12..8a31d3c 100644
--- a/core/src/netwerkprog/game/util/data/Data.java
+++ b/core/src/netwerkprog/game/util/data/Data.java
@@ -7,25 +7,17 @@ public class Data implements Serializable {
         return 8000;
     }
 
-    private String objectType;
+    private final String objectType;
     private Data payload;
 
     public Data(String type) {
         this.objectType = type;
     }
 
-    public void setObjectType(String objectType) {
-        this.objectType = objectType;
-    }
-
     public void setPayload(Data payload) {
         this.payload = payload;
     }
 
-    public String getType() {
-        return objectType;
-    }
-
     public Data getPayload() {
         return payload;
     }
diff --git a/core/src/netwerkprog/game/util/data/character/MoveData.java b/core/src/netwerkprog/game/util/data/character/MoveData.java
index fb8010e..a27f3be 100644
--- a/core/src/netwerkprog/game/util/data/character/MoveData.java
+++ b/core/src/netwerkprog/game/util/data/character/MoveData.java
@@ -1,6 +1,5 @@
 package netwerkprog.game.util.data.character;
 
-import netwerkprog.game.client.game.map.GameTile;
 import netwerkprog.game.util.data.Data;
 
 import java.awt.*;
diff --git a/core/src/netwerkprog/game/util/data/connection/NameData.java b/core/src/netwerkprog/game/util/data/connection/NameData.java
index b410827..a66418e 100644
--- a/core/src/netwerkprog/game/util/data/connection/NameData.java
+++ b/core/src/netwerkprog/game/util/data/connection/NameData.java
@@ -3,7 +3,7 @@ package netwerkprog.game.util.data.connection;
 import netwerkprog.game.util.data.Data;
 
 public class NameData extends Data {
-    private String name;
+    private final String name;
     public NameData(String name) {
         super("name");
         super.setPayload(this);
diff --git a/core/src/netwerkprog/game/util/data/connection/ReadyData.java b/core/src/netwerkprog/game/util/data/connection/ReadyData.java
deleted file mode 100644
index e38ec40..0000000
--- a/core/src/netwerkprog/game/util/data/connection/ReadyData.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package netwerkprog.game.util.data.connection;
-
-import netwerkprog.game.util.data.Data;
-
-public class ReadyData extends Data {
-    private String username;
-    public ReadyData(String username) {
-        super("ready");
-        this.username = username;
-    }
-
-    public String getUsername() {
-        return username;
-    }
-}
diff --git a/core/src/netwerkprog/game/util/graphics/Renderable.java b/core/src/netwerkprog/game/util/graphics/Renderable.java
index d4d0605..4f8ae47 100644
--- a/core/src/netwerkprog/game/util/graphics/Renderable.java
+++ b/core/src/netwerkprog/game/util/graphics/Renderable.java
@@ -1,7 +1,5 @@
 package netwerkprog.game.util.graphics;
 
-import netwerkprog.game.util.application.Updatable;
-
-public interface Renderable extends Updatable {
+public interface Renderable {
     void render();
 }