--- a/src/alice/test/dpp/codesegment/StartCodeSegment.java	Sun Nov 25 02:38:09 2012 +0900
+++ b/src/alice/test/dpp/codesegment/StartCodeSegment.java	Sun Nov 25 17:07:45 2012 +0900
@@ -1,6 +1,7 @@
 package alice.test.dpp.codesegment;
 
 import alice.codesegment.CodeSegment;
+import alice.test.dpp.model.Fork;
 import alice.test.dpp.model.Philosophy;
 
 public class StartCodeSegment extends CodeSegment {
@@ -9,11 +10,9 @@
 	public void run() {
 		System.out.println("run StartCodeSegment");
 		new ThinkCodeSegment(new Philosophy("phil1","fork1","fork2"));
-		ods.update("local", "fork1", 1);
-		ods.update("local", "fork2", 2);
-//		ods.update("local", "fork3", 3);
-//		ods.update("local", "fork4", 4);
-//		ods.update("local", "fork4", 4);
+		ods.update("local", "fork1", new Fork("fork1"));
+		ods.update("local", "fork2", new Fork("fork2"));
+
 	}
 
 }

--- a/src/alice/test/dpp/codesegment/ThinkCodeSegment.java	Sun Nov 25 02:38:09 2012 +0900
+++ b/src/alice/test/dpp/codesegment/ThinkCodeSegment.java	Sun Nov 25 17:07:45 2012 +0900
@@ -1,28 +1,30 @@
 package alice.test.dpp.codesegment;
 
 import alice.codesegment.CodeSegment;
-import alice.datasegment.CommandType;
-import alice.datasegment.Receiver;
 import alice.test.dpp.model.Philosophy;
 
 public class ThinkCodeSegment extends CodeSegment {
 
 	Philosophy phil;
-	Receiver arg1 = ids.create(CommandType.TAKE);
-	Receiver arg2 = ids.create(CommandType.TAKE);
 
 	public ThinkCodeSegment(Philosophy p) {
 		phil = p;
-		arg1.setKey(p.getLeftFork());
-		arg2.setKey(p.getRightFork());
 	}
-	
-	
+
 	@Override
 	public void run() {
-		
-		
-		
+		double rand = Math.random();
+		if (rand < 0.5) {
+			try {
+				System.out.println(phil + " is thinking.");
+				Thread.sleep(10);
+				new ThinkCodeSegment(phil);
+			} catch (InterruptedException e) {
+				e.printStackTrace();
+			}
+		} else {
+			new TakeForkCodeSegment(phil);
+		}
 	}
 	
 }

--- a/src/alice/test/dpp/model/Fork.java	Sun Nov 25 02:38:09 2012 +0900
+++ b/src/alice/test/dpp/model/Fork.java	Sun Nov 25 17:07:45 2012 +0900
@@ -2,7 +2,47 @@
 
 public class Fork {
 
+	private String owner;
+	private String forkName;
+	private ForkState state;
 	
+	public Fork(String n) {
+		forkName = n;
+		owner = Table.TABLE;
+		state = ForkState.ON_THE_TABLE;
+	}
+
+	public ForkState getState() {
+		return state;
+	}
 	
+	public String getForkName() {
+		return forkName;
+	}
+	
+	public boolean getFork(Philosophy phil) {
+		if (state == ForkState.ON_THE_TABLE){
+			state = ForkState.IN_THE_HAND;
+			owner = phil.getName();
+			return true;
+		} else {
+			return false;
+		}
+	}
+	
+	public boolean onTheTable(Philosophy phil) {
+		if (owner.equals(phil.getName())) {
+			state = ForkState.ON_THE_TABLE;
+			owner = Table.TABLE;
+			return true;
+		} else {
+			return false;
+		}
+	}
+	
+	public String getOwner() {
+		return owner;
+	}
+
 	
 }