diff --git a/Projekte/mdga/model/src/main/java/pp/mdga/server/automaton/game/AnimationState.java b/Projekte/mdga/model/src/main/java/pp/mdga/server/automaton/game/AnimationState.java
index a9176297..8d6b634c 100644
--- a/Projekte/mdga/model/src/main/java/pp/mdga/server/automaton/game/AnimationState.java
+++ b/Projekte/mdga/model/src/main/java/pp/mdga/server/automaton/game/AnimationState.java
@@ -1,16 +1,14 @@
 package pp.mdga.server.automaton.game;
 
 import pp.mdga.message.client.AnimationEndMessage;
-import pp.mdga.message.server.DiceNowMessage;
 import pp.mdga.server.ServerGameLogic;
 import pp.mdga.server.automaton.GameState;
 
-import java.util.HashMap;
-import java.util.Map;
+import java.util.HashSet;
+import java.util.Set;
 
 /**
  * This class represents the animation state of the game state.
- *
  */
 public class AnimationState extends GameAutomatonState {
     /**
@@ -21,7 +19,7 @@ public class AnimationState extends GameAutomatonState {
     /**
      * Create AnimationState attributes.
      */
-    private final Map<Integer, Boolean> messageReceived = new HashMap<>();
+    private final Set<Integer> messageReceived = new HashSet<>();
 
     /**
      * Constructs a server state of the specified game logic.
@@ -53,7 +51,7 @@ public void exit() {
      */
     @Override
     public void received(AnimationEndMessage msg, int from) {
-        this.messageReceived.put(from, true);
+        this.messageReceived.add(from);
         if (this.messageReceived.size() == this.logic.getGame().getPlayers().size()) {
             this.gameAutomaton.setCurrentState(this.gameAutomaton.getTurnState());
             this.gameAutomaton.getTurnState().setCurrentState(this.gameAutomaton.getTurnState().getPowerCardState());