Fixed various errors when target = 0.

src/model/comPlayer/AdaptiveComPlayer.java

@@ -44,7 +44,7 @@ public class AdaptiveComPlayer implements Player {
 			// take 10 turns to place 6 tiles
 			double defaultPenalty = -0.25;
 
-			int maxScore = target.getTargetScore();
+			int maxScore = Math.max(1,target.getTargetScore());
 			int maxTiles = Board.NUM_COLS * Board.NUM_ROWS;
 
 			gw = GridWorldFactory.createGridWorldForTileGame(maxTiles,
@@ -79,10 +79,11 @@ public class AdaptiveComPlayer implements Player {
 		if (action == null || state == null) {
 			System.out
 					.println("Board state outside of parameters of MDP.  Reverting to failsafe behavior.");
-			action = GridWorldAction.RandomMove;
-		}
+			action = GridWorldAction.AddTile;
+		} else {
 			System.out.println("Performing action " + action + " at state " + state
 				+ " per policy.");
+		}
 		switch (action) {
 		case AddTile:
 			// System.out.println("Performing action #" +