diff --git a/.idea/misc.xml b/.idea/misc.xml
index b573818..c3dfb30 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_X" default="true" project-jdk-name="openjdk-17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="openjdk-17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/src/ch/zhaw/catan/Siedler.java b/src/ch/zhaw/catan/Siedler.java
index de9da7a..14411cf 100644
--- a/src/ch/zhaw/catan/Siedler.java
+++ b/src/ch/zhaw/catan/Siedler.java
@@ -10,6 +10,10 @@ public class Siedler {
         //Spiel erstellen
         Parser parser = new Parser();
         SiedlerGame game = foundingPhase(parser);
+        gamePhase(parser, game);
+    }
+
+    private static void gamePhase(Parser parser, SiedlerGame game) {
         boolean running = true;
         boolean diceThrown = false;
         while (running){
@@ -23,39 +27,23 @@ public class Siedler {
             parser.displayPlayerInfo(game.getCurruntPlayerResource(), game.getCurrentPlayerWinpoints());
             switch (parser.getAction()) {
                 case NEXTPLAYER:
-                    Config.Faction winner = game.getWinner();
-                    if(winner == null) {
-                        game.switchToNextPlayer();
-                        diceThrown = false;
-                    } else {
-                        parser.displayWinnertext(winner);
+                    if(caseNextPlayer(parser, game)){
                         running = false;
+                    } else {
+                        diceThrown = false;
                     }
                     break;
                 case BUILDSETTLEMENT:
-                    parser.giveCoordinatesForStructures(Config.Structure.SETTLEMENT);
-                    if(!game.buildSettlement(parser.getPoint())){
-                        parser.errorMessage();
-                    }
+                    caseBuildStructure(parser, game, Config.Structure.SETTLEMENT);
                     break;
                 case BUILDCITY:
-                    parser.giveCoordinatesForStructures(Config.Structure.CITY);
-                    if(!game.buildCity(parser.getPoint())){
-                        parser.errorMessage();
-                    }
+                    caseBuildStructure(parser, game, Config.Structure.CITY);
                     break;
                 case BUILDROAD:
-                    parser.giveCoordinatesForStructures(Config.Structure.ROAD);
-                    if(game.buildRoad(parser.getPoint(), parser.getPoint())){
-                        parser.errorMessage();
-                    }
+                    caseBuildStructure(parser, game, Config.Structure.ROAD);
                     break;
                 case TRADEWITHBANK:
-                    Config.Resource offer = parser.trade(true);
-                    Config.Resource want = parser.trade(false);
-                    if(!game.tradeWithBankFourToOne(offer, want)){
-                        parser.errorMessage();
-                    }
+                    caseTradeWithBank(parser, game);
                     break;
                 case QUIT:
                     running = false;
@@ -67,6 +55,40 @@ public class Siedler {
         }
     }
 
+    private static boolean caseNextPlayer(Parser parser, SiedlerGame game){
+        Config.Faction winner = game.getWinner();
+        if(winner == null) {
+            game.switchToNextPlayer();
+            return false;
+        } else {
+            parser.displayWinnertext(winner);
+            return true;
+        }
+    }
+
+    private static void caseTradeWithBank(Parser parser, SiedlerGame game) {
+        Config.Resource offer = parser.trade(true);
+        Config.Resource want = parser.trade(false);
+        if(!game.tradeWithBankFourToOne(offer, want)){
+            parser.errorMessage();
+        }
+    }
+
+    private static void caseBuildStructure(Parser parser, SiedlerGame game, Config.Structure structure) {
+        parser.giveCoordinatesForStructures(structure);
+        boolean successfully = false;
+        if(structure == Config.Structure.SETTLEMENT){
+            successfully = game.buildSettlement(parser.getPoint());
+        } else if(structure == Config.Structure.CITY) {
+            successfully = game.buildCity(parser.getPoint());
+        } else if(structure == Config.Structure.ROAD){
+            successfully = game.buildRoad(parser.getPoint(), parser.getPoint());
+        }
+        if(!successfully){
+            parser.errorMessage();
+        }
+    }
+
     private static void throwDice(SiedlerGame game, Parser parser) {
         Random random = new Random();
         //sum of two integers from 0-5 + 2 --> sum of two integers from 1-6