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DroidFish: Give a small positive weight for CTG book moves even if the book entry says wins=draws=0 for the move.

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Peter Osterlund
2013-06-03 19:25:17 +00:00
parent eb00cf60de
commit cf212ff0ed
1 changed files with 6 additions and 6 deletions
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4
DroidFish/src/org/petero/droidfish/book/CtgBook.java
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@@ -99,7 +99,7 @@ class CtgBook implements IOpeningBook {
if (options.preferMainLines) if (options.preferMainLines)
weight *= 10; weight *= 10;
} }
int score = movePd.getOpponentScore(); float score = movePd.getOpponentScore() + 1e-4f;
// double w0 = weight; // double w0 = weight;
weight = weight * score; weight = weight * score;
// System.out.printf("%s : w0:%.3f rec:%d score:%d %.3f\n", TextIO.moveToUCIString(be.move), // System.out.printf("%s : w0:%.3f rec:%d score:%d %.3f\n", TextIO.moveToUCIString(be.move),
@@ -426,7 +426,7 @@ class CtgBook implements IOpeningBook {
return entries; return entries;
} }
/** Return (wins + draws/2) / games. */ /** Return (loss * 2 + draws). */
final int getOpponentScore() { final int getOpponentScore() {
int statStart = posLen + moveBytes; int statStart = posLen + moveBytes;
// int wins = extractInt(buf, statStart + 3, 3); // int wins = extractInt(buf, statStart + 3, 3);