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DroidFish: Removed unused code to generate internal .bin book. The corresponding code from CuckooChess is used for this task.

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This commit is contained in:
Peter Osterlund
2011-12-28 16:00:05 +00:00
parent 0ca0a40324
commit 6165005464
1 changed files with 0 additions and 92 deletions
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92
DroidFish/src/org/petero/droidfish/engine/DroidBook.java
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@@ -18,12 +18,6 @@
package org.petero.droidfish.engine; package org.petero.droidfish.engine;
import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
import java.security.SecureRandom; import java.security.SecureRandom;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.Collections; import java.util.Collections;
@@ -32,15 +26,11 @@ import java.util.List;
import java.util.Random; import java.util.Random;
import org.petero.droidfish.BookOptions; import org.petero.droidfish.BookOptions;
import org.petero.droidfish.gamelogic.ChessParseError;
import org.petero.droidfish.gamelogic.Move; import org.petero.droidfish.gamelogic.Move;
import org.petero.droidfish.gamelogic.MoveGen; import org.petero.droidfish.gamelogic.MoveGen;
import org.petero.droidfish.gamelogic.Position; import org.petero.droidfish.gamelogic.Position;
import org.petero.droidfish.gamelogic.TextIO; import org.petero.droidfish.gamelogic.TextIO;
import org.petero.droidfish.gamelogic.Pair; import org.petero.droidfish.gamelogic.Pair;
import org.petero.droidfish.gamelogic.UndoInfo;
import chess.Piece;
/** /**
* Implements an opening book. * Implements an opening book.
@@ -185,86 +175,4 @@ public final class DroidBook {
return internalBook; return internalBook;
} }
} }
/** Creates the book.bin file. */
public static void main(String[] args) throws IOException {
List<Byte> binBook = createBinBook();
FileOutputStream out = new FileOutputStream("../src/book.bin");
int bookLen = binBook.size();
byte[] binBookA = new byte[bookLen];
for (int i = 0; i < bookLen; i++)
binBookA[i] = binBook.get(i);
out.write(binBookA);
out.close();
}
private static final List<Byte> createBinBook() {
List<Byte> binBook = new ArrayList<Byte>(0);
try {
InputStream inStream = new Object().getClass().getResourceAsStream("/book.txt");
InputStreamReader inFile = new InputStreamReader(inStream);
BufferedReader inBuf = new BufferedReader(inFile, 8192);
LineNumberReader lnr = new LineNumberReader(inBuf);
String line;
while ((line = lnr.readLine()) != null) {
if (line.startsWith("#") || (line.length() == 0)) {
continue;
}
if (!addBookLine(line, binBook)) {
System.out.printf("Book parse error, line:%d\n", lnr.getLineNumber());
throw new RuntimeException();
}
// System.out.printf("no:%d line:%s%n", lnr.getLineNumber(), line);
}
lnr.close();
} catch (ChessParseError ex) {
throw new RuntimeException();
} catch (IOException ex) {
System.out.println("Can't read opening book resource");
throw new RuntimeException();
}
return binBook;
}
/** Add a sequence of moves, starting from the initial position, to the binary opening book. */
private static final boolean addBookLine(String line, List<Byte> binBook) throws ChessParseError {
Position pos = TextIO.readFEN(TextIO.startPosFEN);
UndoInfo ui = new UndoInfo();
String[] strMoves = line.split(" ");
for (String strMove : strMoves) {
// System.out.printf("Adding move:%s\n", strMove);
int bad = 0;
if (strMove.endsWith("?")) {
strMove = strMove.substring(0, strMove.length() - 1);
bad = 1;
}
Move m = TextIO.stringToMove(pos, strMove);
if (m == null) {
return false;
}
int prom = pieceToProm(m.promoteTo);
int val = m.from + (m.to << 6) + (prom << 12) + (bad << 15);
binBook.add((byte)(val >> 8));
binBook.add((byte)(val & 255));
pos.makeMove(m, ui);
}
binBook.add((byte)0);
binBook.add((byte)0);
return true;
}
private static final int pieceToProm(int p) {
switch (p) {
case Piece.WQUEEN: case Piece.BQUEEN:
return 1;
case Piece.WROOK: case Piece.BROOK:
return 2;
case Piece.WBISHOP: case Piece.BBISHOP:
return 3;
case Piece.WKNIGHT: case Piece.BKNIGHT:
return 4;
default:
return 0;
}
}
} }