1 files changed, 101 insertions, 0 deletions
diff --git a/catchall.cpp b/catchall.cpp
new file mode 100644
index 0000000..61ec0f6
--- /dev/null
+++ b/catchall.cpp
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+/*
+ *  Quackle -- Crossword game artificial intelligence and analysis tool
+ *  Copyright (C) 2005-2006 Jason Katz-Brown and John O'Laughlin.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  
+ *  02110-1301  USA
+ */
+
+#include "board.h"
+#include "datamanager.h"
+#include "game.h"
+#include "strategyparameters.h"
+#include "catchall.h"
+
+using namespace Quackle;
+
+double CatchallEvaluator::equity(const GamePosition &position, const Move &move) const
+{
+	//UVcout << "catchall being used on " << move.tiles() << endl;
+	if (position.board().isEmpty())
+	{
+		double adjustment = 0;
+	
+		if (move.action == Move::Place)
+		{
+			int start = move.startcol;
+			if (move.startrow < start)
+				start = move.startrow;
+		
+			LetterString wordTiles = move.tiles();
+		
+			int length = wordTiles.length();
+	
+			int consbits = 0;
+			for (signed int i = wordTiles.length() - 1; i >= 0; i--)
+			{
+				consbits <<= 1;
+                if (QUACKLE_ALPHABET_PARAMETERS->isVowel(QUACKLE_ALPHABET_PARAMETERS->clearBlankness(wordTiles[i])))
+					consbits |= 1;
+			}
+
+			adjustment = QUACKLE_STRATEGY_PARAMETERS->vcPlace(start, length, consbits);
+		}
+		else adjustment = 3.5;
+
+		// UVcout << "placement adjustment for " << move << " is " << adjustment << endl;
+		return ScorePlusLeaveEvaluator::equity(position, move) + adjustment;
+	}
+	
+	else if (position.bag().size() > 0)
+	{
+		int leftInBagPlusSeven = position.bag().size() - move.usedTiles().length() + 7;
+		double heuristicArray[13] =
+		{
+			0.0, -8.0, 0.0, -0.5, -2.0, -3.5, -2.0,
+			2.0, 10.0, 7.0,  4.0, -1.0, -2.0
+		};
+		double timingHeuristic = 0.0;
+		if (leftInBagPlusSeven < 13) timingHeuristic = heuristicArray[leftInBagPlusSeven];
+		return ScorePlusLeaveEvaluator::equity(position, move) + timingHeuristic;
+	}
+	else
+	{
+		return endgameResult(position, move) + move.score;
+	}
+}
+
+double CatchallEvaluator::endgameResult(const GamePosition &position, const Move &move) const
+{
+	Rack leave = position.currentPlayer().rack() - move;
+
+	if (leave.empty())
+	{
+		double deadwood = 0;
+		for (PlayerList::const_iterator it = position.players().begin(); 
+		     it != position.players().end(); ++it)
+		{
+			if (!(*it == position.currentPlayer()))
+			{
+				deadwood += it->rack().score();
+			}
+		}
+
+		return deadwood * 2;
+	}
+
+    return -8.00 - 2.61 * leave.score();
+}
+