2 files changed, 38 insertions, 29 deletions

diff --git a/src/jrummikub/model/StoneSet.java b/src/jrummikub/model/StoneSet.java
index 39fb158..0d53b52 100644
--- a/src/jrummikub/model/StoneSet.java
+++ b/src/jrummikub/model/StoneSet.java
@@ -208,7 +208,7 @@ public class StoneSet implements Iterable<Stone>, Sizeable {
 	 * 
 	 * @return number of stones
 	 */
-	public int size() {
+	public int getSize() {
 		return stones.size();
 	}
 
diff --git a/src/jrummikub/model/StoneTray.java b/src/jrummikub/model/StoneTray.java
index 60b8cc3..c4230f2 100644
--- a/src/jrummikub/model/StoneTray.java
+++ b/src/jrummikub/model/StoneTray.java
@@ -11,7 +11,7 @@ import jrummikub.util.Pair;
  * or {@link StoneSet}s.
  * 
  * @param <E>
- *          Type of positioned objects (must implement Sizeable)
+ *            Type of positioned objects (must implement Sizeable)
  */
 public class StoneTray<E extends Sizeable> implements IStoneTray<E> {
 	protected HashMap<E, Pair<E, Position>> objects = new HashMap<E, Pair<E, Position>>();
@@ -50,7 +50,8 @@ public class StoneTray<E extends Sizeable> implements IStoneTray<E> {
 			if (currentObject == object)
 				continue;
 			Position currentPosition = getPosition(currentObject);
-			if (!objectsOverlap(object, position, currentObject, currentPosition)) {
+			if (!objectsOverlap(object, position, currentObject,
+					currentPosition)) {
 				continue;
 			}
 			// Object would be placed inside the current object
@@ -60,23 +61,22 @@ public class StoneTray<E extends Sizeable> implements IStoneTray<E> {
 			Position newPosition = null;
 			// Move object to avoid overlap
 			switch (newDirection) {
-				case TOP:
-					newPosition = new Position(currentPosition.getX(), position.getY()
-							- currentObject.getHeight());
-					break;
-				case BOTTOM:
-					newPosition = new Position(currentPosition.getX(), position.getY()
-							+ object.getHeight());
-					break;
-				case LEFT:
-					newPosition = new Position(
-							position.getX() - currentObject.getWidth(),
-							currentPosition.getY());
-					break;
-				case RIGHT:
-					newPosition = new Position(position.getX() + object.getWidth(),
-							currentPosition.getY());
-					break;
+			case TOP:
+				newPosition = new Position(currentPosition.getX(),
+						position.getY() - currentObject.getHeight());
+				break;
+			case BOTTOM:
+				newPosition = new Position(currentPosition.getX(),
+						position.getY() + object.getHeight());
+				break;
+			case LEFT:
+				newPosition = new Position(position.getX()
+						- currentObject.getWidth(), currentPosition.getY());
+				break;
+			case RIGHT:
+				newPosition = new Position(position.getX() + object.getWidth(),
+						currentPosition.getY());
+				break;
 			}
 
 			objects.remove(currentObject);
@@ -85,14 +85,14 @@ public class StoneTray<E extends Sizeable> implements IStoneTray<E> {
 	}
 
 	/**
-	 * Checks whether the object may be placed on the given position, computes new
-	 * position if not
+	 * Checks whether the object may be placed on the given position, computes
+	 * new position if not
 	 * 
 	 * @param object
-	 *          to be dropped
+	 *            to be dropped
 	 * @param dir
 	 * @param pos
-	 *          the object is dropped at
+	 *            the object is dropped at
 	 * @return null if the drop is valid, new position otherwise
 	 */
 	protected Pair<Position, Direction> fixInvalidDrop(E object, Position pos,
@@ -100,7 +100,7 @@ public class StoneTray<E extends Sizeable> implements IStoneTray<E> {
 		return null;
 	}
 
-	private boolean lessOrEqual(float x, float y) {
+	private static boolean lessOrEqual(float x, float y) {
 		if (-0.000001f < y && y < 0.000001f) {
 			return (x < y + 0.000001f);
 		}
@@ -120,13 +120,15 @@ public class StoneTray<E extends Sizeable> implements IStoneTray<E> {
 		if (lessOrEqual(position1.getX() + object1.getWidth(), position2.getX())) {
 			return false;
 		}
-		if (lessOrEqual(position1.getY() + object1.getHeight(), position2.getY())) {
+		if (lessOrEqual(position1.getY() + object1.getHeight(),
+				position2.getY())) {
 			return false;
 		}
 		if (lessOrEqual(position2.getX() + object2.getWidth(), position1.getX())) {
 			return false;
 		}
-		if (lessOrEqual(position2.getY() + object2.getHeight(), position1.getY())) {
+		if (lessOrEqual(position2.getY() + object2.getHeight(),
+				position1.getY())) {
 			return false;
 		}
 		return true;
@@ -156,19 +158,26 @@ public class StoneTray<E extends Sizeable> implements IStoneTray<E> {
 		}
 	}
 
+	/**
+	 * Will the object be moved horizontally or vertically
+	 * 
+	 * @return boolean vertical movement
+	 */
 	private boolean getMoveOrientation(E object, Position position,
 			Pair<E, Position> blocking) {
 		float objectRight = position.getX() + object.getWidth();
 		float blockingRight = blocking.getSecond().getX()
 				+ blocking.getFirst().getWidth();
 		float overlapRight = Math.min(objectRight, blockingRight);
-		float overlapLeft = Math.max(position.getX(), blocking.getSecond().getX());
+		float overlapLeft = Math.max(position.getX(), blocking.getSecond()
+				.getX());
 		float overlapX = overlapRight - overlapLeft;
 		float objectBottom = position.getY() + object.getHeight();
 		float blockingBottom = blocking.getSecond().getY()
 				+ blocking.getFirst().getHeight();
 		float overlapBottom = Math.min(objectBottom, blockingBottom);
-		float overlapTop = Math.max(position.getY(), blocking.getSecond().getY());
+		float overlapTop = Math.max(position.getY(), blocking.getSecond()
+				.getY());
 		float overlapY = overlapBottom - overlapTop;
 		// vertical or horizontal Shift
 		// TODO magic factor