/// <summary>
/// Extracts the current piece from the board.
/// </summary>
/// <param name="screenshot">The screenshot to extract the piece from.</param>
/// <param name="maxFallingDistance">Expected maximal falling distance.</param>
/// <returns>The piece and it's probability.</returns>
public ProbabilisticResult <Piece> ExtractPieceFuzzy(IScreenshot screenshot, int maxFallingDistance)
{
if (screenshot == null)
{
throw new ArgumentNullException(nameof(screenshot));
}
if (maxFallingDistance < 0)
{
throw new ArgumentException("maxFallingDistance must be positive");
}
double bestProbability = 0;
Piece expectedPiece = null;
for (int yDelta = 0; yDelta <= maxFallingDistance; yDelta++)
{
foreach (var tetromino in Tetriminos.All)
{
foreach (var pose in tetromino.GetPoses())
{
var piece = pose.Fall(yDelta);
var probability = _templateMatcher.GetProbabilityCurrentPiece(screenshot, piece);
if (probability > bestProbability)
{
bestProbability = probability;
expectedPiece = piece;
}
}
}
}
return(new ProbabilisticResult <Piece>(expectedPiece, bestProbability));
}