diff --git a/OGP1718-Worms/src/worms/model/Worm.java b/OGP1718-Worms/src/worms/model/Worm.java
index 1de34a6..7feec97 100644
--- a/OGP1718-Worms/src/worms/model/Worm.java
+++ b/OGP1718-Worms/src/worms/model/Worm.java
@@ -556,18 +556,18 @@ public class Worm {
      * 		 the old x-coordinate plus the number of steps multiplied with the distance
      * 		 that the x-coordinate schould move (distance is equal to the radius multiplied
      * 		 with the cosinus of the orientation)
-     * 		 |distanceX = this.radius * Math.cos(this.orientation)
-     * 		 |new.xCoordinate = this.location.item1 + numberSteps * distanceX
+     * 		 |distanceX = this.radius * cos(getOrientation())
+     * 		 |new.xCoordinate = getLocation().item1 + numberSteps * distanceX
      * @post the y-coordinate of the new location of the worm schould be the location of
      * 		 the old y-coordinate plus the number of steps multiplied with the distance
      * 		 that the y-coordinate schould move (distance is equal to the radius multiplied
      * 		 with the sinus of the orientation)
-     * 		 |distanceY = this.radius * Math.sin(this.orientation)
-     * 		 |new.yCoordinate = this.location.item2 + numberSteps * distanceY
+     * 		 |distanceY = this.radius * sin(getOrientation())
+     * 		 |new.yCoordinate = getLocation().item2 + numberSteps * distanceY
      * @post the current value of action actionPoints has changed. The current value of action actionPoints
      * 		 minus the cost of moving (abs(cos(theta)) + abs(4 sin(theta)))
-     * 		 |value = (int) Math.ceil(Math.abs(Math.cos(this.orientation)) + Math.abs(4 * Math.sin(this.orientation)))
-     * 		 |setActionPoints(this.actionPoints - value)
+     * 		 |cost = (long) ceil(abs(cos(getOrientation())) + abs(4 * sin(getOrientation()))) * numberSteps
+     * 		 |subtractActionPoints(cost)
      * @throws IllegalArgumentException
      * 		   when the total of steps is lower then 0 or when the cost of action point is more
      * 		   then the current value of action point