From f8f75fde6d6392aee2504df5bde05459d0b0c36f Mon Sep 17 00:00:00 2001
From: Jannis Harder <harder@informatik.uni-luebeck.de>
Date: Tue, 3 May 2011 19:06:12 +0200
Subject: Classification of runs and sets

git-svn-id: svn://sunsvr01.isp.uni-luebeck.de/swproj13/trunk@83 72836036-5685-4462-b002-a69064685172
---
 src/jrummikub/model/StoneSet.java | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/jrummikub/model/StoneSet.java b/src/jrummikub/model/StoneSet.java
index 47e6786..6081730 100644
--- a/src/jrummikub/model/StoneSet.java
+++ b/src/jrummikub/model/StoneSet.java
@@ -10,6 +10,7 @@ import java.util.Set;
 import sun.reflect.generics.reflectiveObjects.NotImplementedException;
 
 import jrummikub.util.Pair;
+import static jrummikub.model.StoneSet.Type.*;
 
 /** Class managing {@link Stone}s joined together to form sets */
 public class StoneSet implements Iterable<Stone>, Sizeable {
@@ -25,14 +26,29 @@ public class StoneSet implements Iterable<Stone>, Sizeable {
 		this.stones = new ArrayList<Stone>(stones);
 	}
 
+	public enum Type {
+		GROUP, RUN, INVALID
+	}
+
 	/**
 	 * Test for rule conflict within the StoneSet
 	 * 
 	 * @return true when the set is valid according to the rules
 	 */
 	public boolean isValid() {
+		return classify() != INVALID;
+	}
+
+	/**
+	 * Test for rule conflict within the StoneSet and determine whether the set
+	 * is a group or a run
+	 * 
+	 * @return GROUP or RUN for valid sets, INVALID otherwise
+	 */
+	public Type classify() {
+		// TODO: extend this for score calculation (release 2...)
 		if (stones.size() < 3) {
-			return false;
+			return INVALID;
 		}
 		int nonJoker1 = -1, nonJoker2 = -1;
 		for (int i = 0; i < stones.size(); i++) {
@@ -43,17 +59,17 @@ public class StoneSet implements Iterable<Stone>, Sizeable {
 			nonJoker1 = i;
 		}
 		if (nonJoker2 == -1) {
-			return true;
+			return GROUP;
 		}
 		// is run
 		if (stones.get(nonJoker1).getColor() == stones.get(nonJoker2)
 				.getColor()) {
-			return isValidRun(nonJoker1);
+			return isValidRun(nonJoker1) ? RUN : INVALID;
 
 		}
 		// is group
 		else {
-			return isValidGroup();
+			return isValidGroup() ? GROUP : INVALID;
 		}
 	}
 
-- 
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