small changes

OGP1718-Worms/src/worms/model/Worm.java

@@ -28,7 +28,7 @@ import static java.lang.Math.*;
  * Arthur Bols 1e bachelor Informatica
  * Leen Dereu 1e bachelor Informatica
  *
- * URL: TODO
+ * URL: https://github.com/KUL-ogp/ogp1718-project-bols-dereu
  */
 public class Worm {
 
@@ -575,12 +575,12 @@ public class Worm {
      */
     public void move(int numberSteps) throws IllegalArgumentException {
     	if (numberSteps < 0)
-    		throw new IllegalArgumentException(); // TODO add decent exception msg
+    		throw new IllegalArgumentException();
 
         long cost = (long) ceil(abs(cos(getOrientation())) + abs(4 * sin(getOrientation()))) * numberSteps;
 
         if (cost > getActionPoints())
-            throw new IllegalArgumentException(); // TODO add decent exception msg
+            throw new IllegalArgumentException();
 
     	double distanceX = this.radius * cos(getOrientation());
     	double distanceY = this.radius * sin(getOrientation());