public static MetricWeights ReadMetricWeightsXml(XmlReader xmlReader)
{
if (null == xmlReader)
{
throw new ArgumentNullException("xmlReader");
}
MetricWeights mw = new MetricWeights();
while (xmlReader.Read())
{
if (xmlReader.IsStartElement() && !xmlReader.Name.EndsWith("MetricWeights"))
{
string key = xmlReader.Name;
double value = xmlReader.ReadElementContentAsDouble();
BugType bugType;
BugTypeWeight bugTypeWeight;
if (TryParseKeyName(key, out bugType, out bugTypeWeight))
{
mw.Set(bugType, bugTypeWeight, value + mw.Get(bugType, bugTypeWeight));
}
}
}
return(mw);
}
private MetricWeights GetGradient(BoardMetrics boardMetrics)
{
MetricWeights gradient = new MetricWeights();
foreach (PieceName pieceName in EnumUtils.PieceNames)
{
BugType bugType = EnumUtils.GetBugType(pieceName);
double colorValue = EnumUtils.GetColor(pieceName) == PlayerColor.White ? 1.0 : -1.0;
gradient.Set(bugType, BugTypeWeight.InPlayWeight, gradient.Get(bugType, BugTypeWeight.InPlayWeight) + colorValue * boardMetrics[pieceName].InPlay);
gradient.Set(bugType, BugTypeWeight.IsPinnedWeight, gradient.Get(bugType, BugTypeWeight.IsPinnedWeight) + colorValue * boardMetrics[pieceName].IsPinned);
gradient.Set(bugType, BugTypeWeight.IsCoveredWeight, gradient.Get(bugType, BugTypeWeight.IsCoveredWeight) + colorValue * boardMetrics[pieceName].IsCovered);
gradient.Set(bugType, BugTypeWeight.NoisyMoveWeight, gradient.Get(bugType, BugTypeWeight.NoisyMoveWeight) + colorValue * boardMetrics[pieceName].NoisyMoveCount);
gradient.Set(bugType, BugTypeWeight.QuietMoveWeight, gradient.Get(bugType, BugTypeWeight.QuietMoveWeight) + colorValue * boardMetrics[pieceName].QuietMoveCount);
gradient.Set(bugType, BugTypeWeight.FriendlyNeighborWeight, gradient.Get(bugType, BugTypeWeight.FriendlyNeighborWeight) + colorValue * boardMetrics[pieceName].FriendlyNeighborCount);
gradient.Set(bugType, BugTypeWeight.EnemyNeighborWeight, gradient.Get(bugType, BugTypeWeight.EnemyNeighborWeight) + colorValue * boardMetrics[pieceName].EnemyNeighborCount);
}
return(gradient);
}
private static double CalculateBoardScore(BoardMetrics boardMetrics, MetricWeights metricWeights)
{
double score = 0;
foreach (PieceName pieceName in EnumUtils.PieceNames)
{
BugType bugType = EnumUtils.GetBugType(pieceName);
double colorValue = EnumUtils.GetColor(pieceName) == PlayerColor.White ? 1.0 : -1.0;
score += colorValue * metricWeights.Get(bugType, BugTypeWeight.InPlayWeight) * boardMetrics[pieceName].InPlay;
score += colorValue * metricWeights.Get(bugType, BugTypeWeight.IsPinnedWeight) * boardMetrics[pieceName].IsPinned;
score += colorValue * metricWeights.Get(bugType, BugTypeWeight.IsCoveredWeight) * boardMetrics[pieceName].IsCovered;
score += colorValue * metricWeights.Get(bugType, BugTypeWeight.NoisyMoveWeight) * boardMetrics[pieceName].NoisyMoveCount;
score += colorValue * metricWeights.Get(bugType, BugTypeWeight.QuietMoveWeight) * boardMetrics[pieceName].QuietMoveCount;
score += colorValue * metricWeights.Get(bugType, BugTypeWeight.FriendlyNeighborWeight) * boardMetrics[pieceName].FriendlyNeighborCount;
score += colorValue * metricWeights.Get(bugType, BugTypeWeight.EnemyNeighborWeight) * boardMetrics[pieceName].EnemyNeighborCount;
}
return(score);
}