7 files changed, 72 insertions, 54 deletions
diff --git a/src/jrummikub/model/GameState.java b/src/jrummikub/model/GameState.java
index ce81ece..d5c12ba 100644
--- a/src/jrummikub/model/GameState.java
+++ b/src/jrummikub/model/GameState.java
@@ -3,7 +3,7 @@ package jrummikub.model;
 /** Class managing the overall and momentary GameState */
 public class GameState {
 	private Table table;
-	private Player[] players;
+	private List<Player> players;
 	private int activePlayer;
 	private StoneHeap gameHeap;
 
diff --git a/src/jrummikub/model/Hand.java b/src/jrummikub/model/Hand.java
index 9437b04..033dfa1 100644
--- a/src/jrummikub/model/Hand.java
+++ b/src/jrummikub/model/Hand.java
@@ -1,30 +1,6 @@
 package jrummikub.model;
 
 /** Class managing a {@link Player}'s {@link Stone}s */
-public class Hand {
-	private Stone[] stones;
-	private Position[] position;
-
-	/**
-	 * Removes {@link Stone} from Hand and returns it
-	 * 
-	 * @param position
-	 *            position of {@link Stone} that will be removed
-	 */
-	public Stone pickUp(Position position) {
-
-	}
-
-	/**
-	 * Adds {@link Stone} to the Hand
-	 * 
-	 * @param stone
-	 *            {@link Stone} to add to Hand
-	 * @param position
-	 *            {@link Position} to put the {@link Stone}
-	 */
-	public void drop(Stone stone, Position position) {
-
-	}
+public class Hand extends StoneTray<Stone> {
 
 }
diff --git a/src/jrummikub/model/Sizeable.java b/src/jrummikub/model/Sizeable.java
new file mode 100644
index 0000000..fa022cc
--- /dev/null
+++ b/src/jrummikub/model/Sizeable.java
@@ -0,0 +1,9 @@
+package jrummikub.model;
+
+/**
+ * Objects that have a size
+ */
+public interface Sizeable {
+	public float getWidth();
+	public float getHeight();
+}
diff --git a/src/jrummikub/model/StoneSet.java b/src/jrummikub/model/StoneSet.java
index 67ad795..706ed3b 100644
--- a/src/jrummikub/model/StoneSet.java
+++ b/src/jrummikub/model/StoneSet.java
@@ -1,8 +1,10 @@
 package jrummikub.model;
 
+import jrummikub.util.Pair;
+
 /** Class managing {@link Stone}s joined together to form sets */
 public class StoneSet {
-	private Stone[] stones;
+	private List<Stone> stones;
 
 	/** Test for rule conflict within the StoneSet */
 	public boolean isValid() {
@@ -16,7 +18,7 @@ public class StoneSet {
 	 * @param position
 	 *            Splitting {@link Position}
 	 */
-	public StoneSet[] splitAt(int position) {
+	public Pair<StoneSet, StoneSet> splitAt(int position) {
 
 	}
 
diff --git a/src/jrummikub/model/StoneTray.java b/src/jrummikub/model/StoneTray.java
new file mode 100644
index 0000000..4a22870
--- /dev/null
+++ b/src/jrummikub/model/StoneTray.java
@@ -0,0 +1,31 @@
+package jrummikub.model;
+
+/** A StoneTray is a collection of positioned objects (for example {@link Stone}s or {@link StoneSet}s.  */
+public abstract class StoneTray<E extends Sizeable> {
+	protected List<E> objects;
+	protected List<Position> positions;
+	
+	/**
+	 * Removes object from tray and returns it
+	 * 
+	 * @param position
+	 *            position of the object that will be removed
+	 */
+	public E pickUp(Position position) {
+
+	}
+	
+
+	/**
+	 * Adds object to the tray
+	 * 
+	 * @param object
+	 *            object to add to Hand
+	 * @param position
+	 *            {@link Position} to put the object
+	 */
+	public void drop(E object, Position position) {
+
+	}
+	
+}
diff --git a/src/jrummikub/model/Table.java b/src/jrummikub/model/Table.java
index 923a6a1..8a1b40f 100644
--- a/src/jrummikub/model/Table.java
+++ b/src/jrummikub/model/Table.java
@@ -2,9 +2,7 @@ package jrummikub.model;
 
 /** Class administering the {@link Stone}s on the game-Table */
 
-public class Table {
-	private StoneSet[] sets;
-	private Position[] positions;
+public class Table extends StoneTray<StoneSet> {
 
 	// Constructor
 	public Table gameTable = new Table();
@@ -15,17 +13,7 @@ public class Table {
 	 * @param position
 	 *            {@link Position} of the selected {@link Stone}
 	 */
-	public Stone pickUp(Position position) {
-
-	}
-
-	/**
-	 * Removes a {@link StoneSet} from the Table and returns it
-	 * 
-	 * @param position
-	 *            {@link Position} of the selected {@link StoneSet}
-	 */
-	public StoneSet pickUpSet(Position position) {
+	public Stone pickUpStone(Position position) {
 
 	}
 
@@ -41,18 +29,6 @@ public class Table {
 
 	}
 
-	/**
-	 * Adds {@link StoneSet} to Table
-	 * 
-	 * @param position
-	 *            Specifies {@link Position} to put the {@link StoneSet}
-	 * @param stones
-	 *            The {@link StoneSet} to add to the Table
-	 */
-	public void drop(Position position, StoneSet stones) {
-
-	}
-
 	/** Tests the Table for rule conflicts by checking all the {@link StoneSets} */
 	public boolean isValid() {
 
diff --git a/src/jrummikub/util/Pair.java b/src/jrummikub/util/Pair.java
new file mode 100644
index 0000000..95af113
--- /dev/null
+++ b/src/jrummikub/util/Pair.java
@@ -0,0 +1,24 @@
+package jrummikub.util;
+
+/**
+ * A pair of objects
+ */
+public class Pair<T1, T2> {
+	final T1 first;
+	final T2 second;
+	
+	public Pair(T1 first, T2 second) {
+		this.first = first;
+		this.second = second;
+	}
+
+	public T1 getFirst() {
+		return first;
+	}
+
+	public T2 getSecond() {
+		return second;
+	}
+	
+	
+}