diff --git a/OGP1718-Worms/src/worms/model/Worm.java b/OGP1718-Worms/src/worms/model/Worm.java
index 0e2c627..7da7c3d 100644
--- a/OGP1718-Worms/src/worms/model/Worm.java
+++ b/OGP1718-Worms/src/worms/model/Worm.java
@@ -219,9 +219,12 @@ public class Worm {
     }
 
     /**
+     *check whether the given orientation is a valid orientation for the worm
      *
      * @param newOrientation
-     * @return
+     * 		  the orientation to check
+     * @return True if and only if the orientation is bigger then and smaller then 2pi
+     * 		   |result == ( newOrientation >= 0 && newOrientation < 2 * PI )
      */
     public static boolean isValidOrientation(double newOrientation) {
         return newOrientation >= 0 && newOrientation < 2 * PI;