commentaar ivm methodes over shape

OGP1718-Worms/src/Worm.java

@@ -184,7 +184,9 @@ public class Worm {
     //===================================================================================
     
     /**
-     * @return the radius of the worm
+     * Return the radius of the worm
+     * 		the radius of the worm expresses half of the 
+     * 		width of the worm
      */
     @Basic
     public double getRadius() {
@@ -192,9 +194,15 @@ public class Worm {
     }
 
     /**
+     * set the radius of the worm to the given radius
      * 
      * @param radius
+     * 		  the new radius for the worm
+     * @post  the new radius of the worm is equal to the given radius
+     * 		  |new.getRadius() == radius
      * @throws IllegalArgumentException
+     * 		   the given radius is not a valid radius for any worm
+     * 		   |! isValidRadius(radius)
      */
     public void setRadius(double radius) throws IllegalArgumentException {
         if (radius < this.minRadius)
@@ -204,14 +212,32 @@ public class Worm {
         setMass(radius);
     }
 
+    /**
+     * Return the minimum radius the worm can have
+     * 		the minimum radius of the worm expresses the minimum length
+     * 		of half of the width of the worm
+     */
     public double getMinRadius() {
         return this.minRadius;
     }
 
+    /**
+     * Return the mass of the worm
+     * 		the mass of the worm expresses the weight of the worm
+     */
     public double getMass() {
         return this.mass;
     }
 
+    /**
+     * set the mass of the worm to the given mass (dependent on the radius)
+     * 
+     * @param radius
+     * 		  part of the formula to calculate the mass
+     * @post  the new mass of the worm is equal to 
+     * 		  rho * (4 / 3 * Math.PI * Math.pow(radius, 3))
+     * 		  |new.getMass() == rho * (4 / 3 * Math.PI * Math.pow(radius, 3))
+     */
     private void setMass(double radius) {
 
         final int rho = 1062;