diff --git a/src/c/main.c b/src/c/main.c
index 93be7c7..e6c8b83 100644
--- a/src/c/main.c
+++ b/src/c/main.c
@@ -10,24 +10,23 @@
 bool gameRunning;
 bool acceptedRules;
 
-//declare needed variables
+// declare needed variables
 Room *map;
 
 // content
 char *gameInstructionsFile = "../../src/content/game_instructions.txt";
 char *gameMapFile = "../../src/content/game.map";
 
-//navigation
+// navigation
 int playerPosition = 0;
 int lastPlayerPosition = 0;
 
-
 // function declarations
 void printInit();
 void acceptInstructions();
 void processInput();
 int checkExit();
-
+int checkMove();
 
 int main()
 {
@@ -38,7 +37,7 @@ int main()
 	// init and instructions
 	printInit();
 
-	//get Content
+	// get Content
 	map = getMap(gameMapFile);
 
 	if (acceptedRules == 1)
@@ -58,7 +57,6 @@ int main()
 	return 0;
 }
 
-
 // init dialogue
 void printInit()
 {
@@ -117,13 +115,34 @@ void acceptInstructions()
 // process user input
 void processInput(char userInput[20])
 {
-	Room r = map[playerPosition];
 	if (checkExit(userInput) == 1)
 	{
 		gameRunning = 0;
 		printf("!GAME EXIT!\n");
 	}
-	else if (strcmp(userInput, "north") == 0)
+	else if (checkMove(userInput) == 1)
+	{
+		printf("Wrong Input!\n");
+	}
+}
+
+// function for checking user input of exit
+int checkExit(char userInput[20])
+{
+	if (strcmp(userInput, "esc") == 0 || strcmp(userInput, "exit") == 0 || strcmp(userInput, "quit") == 0)
+	{
+		return 1;
+	}
+
+	return 0;
+}
+
+int checkMove(char userInput[20])
+{
+
+	Room r = map[playerPosition];
+
+	if (strcmp(userInput, "north") == 0)
 	{
 		printf("->N\n");
 		lastPlayerPosition = playerPosition;
@@ -135,6 +154,8 @@ void processInput(char userInput[20])
 		{
 			playerPosition = r.successor;
 		}
+
+		return 0;
 	}
 	else if (strcmp(userInput, "south") == 0)
 	{
@@ -148,21 +169,11 @@ void processInput(char userInput[20])
 		{
 			printf("You have reached the border. You have to go in the other direction!\n");
 		}
+
+		return 0;
 	}
 	else
-	{
-		printf("Wrong Input!\n");
-	}
-}
-
-//function for checking user input of exit
-int checkExit(char userInput[20])
-{
-	if (strcmp(userInput, "esc") == 0 || strcmp(userInput, "exit") == 0 || strcmp(userInput, "quit") == 0)
 	{
 		return 1;
 	}
-
-	return 0;
 }
-