public ValidPosition MakeTurn()
{
ValidPosition bestPosition = this;
Predicate <Position> betterScore =
p => p.Score > bestPosition.Score;
for (int i = 0; i < 2 * COLUMN_COUNT - 1; ++i)
{
for (int j = 0; j < 2 * SHORT_COLUMN_LENGTH - 1; ++j)
{
var point = new RotationCenter(i, j);
var position = PositionBuilder.Generate(this, point, true).MakeTurn().Build();
if (betterScore(position))
{
bestPosition = position;
}
position = PositionBuilder.Generate(this, point, false).MakeTurn().Build();
if (betterScore(position))
{
bestPosition = position;
}
}
}
return(bestPosition);
}
public static PositionBuilder Generate(ValidPosition position, RotationCenter point, bool clockwise)
{
var shortColumns = position.ShortColumns;
var longColumns = position.LongColumns;
point.Rotate(clockwise, shortColumns, longColumns);
return(new PositionBuilder(shortColumns, longColumns, position.Score));
}
protected List <RotationCenter>[] GetClusterCenters()
{
var clusterCenters = new List <RotationCenter> [MAX_NUMBER + 1];
for (int c = 0; c < MAX_NUMBER + 1; ++c)
{
clusterCenters[c] = new List <RotationCenter>();
}
for (int i = 0; i < 2 * COLUMN_COUNT - 1; ++i)
{
for (int j = 0; j < 2 * SHORT_COLUMN_LENGTH - 1; ++j)
{
var point = new RotationCenter(i, j);
int value;
if (point.HasEqualCells(out value, shortColumns, longColumns))
{
clusterCenters[value].Add(point);
}
}
}
return(clusterCenters);
}