/// <summary>
/// Scans the board bitmap for Vitae marbles (there is no highlight button for Mors and Vitae).
/// </summary>
/// <param name="boardBmp">Bitmap of the game board.</param>
/// <param name="potentialPoints">Points with board coordinates to look for on the board.</param>
private List <Point> ScanBoardForVitae(Bitmap boardBmp, IEnumerable <Point> potentialPoints)
{
var highlightedPoints = new List <Point>();
// Browse the board
foreach (var point in potentialPoints)
{
if (!SigmarCoordinateHelper.IsValidBoardCoordinate(point.X, point.Y))
{
// Invalid coordinate. Don't bother.
continue;
}
// Get the rectangle on the image matching the marble to recognize at the current board position
var targetRectangle = SigmarCoordinateHelper.GetMarbleRectangle(point.X, point.Y);
// Get some pixel in the center of the first pixel row and try to approximate it as the highlight color
var arrowPixel = boardBmp.GetPixel(targetRectangle.Left + 26, targetRectangle.Top + 26);
var marblePixel = boardBmp.GetPixel(targetRectangle.Left + 26, targetRectangle.Top + 41);
if (arrowPixel.GetBrightness() > marblePixel.GetBrightness())
{
highlightedPoints.Add(point);
}
}
return(highlightedPoints);
}
/// <summary>
/// Scans the board bitmap for highlighted marbles and returns their positions.
/// </summary>
/// <param name="boardBmp">Bitmap of the game board.</param>
private List <Point> ScanBoardForHighlightedMarbles(Bitmap boardBmp)
{
var highlightedPoints = new List <Point>();
// Browse the board
for (int boardX = 0; boardX < SigmarCoordinateHelper.BoardSize; boardX++)
{
for (int boardY = 0; boardY < SigmarCoordinateHelper.BoardSize; boardY++)
{
if (!SigmarCoordinateHelper.IsValidBoardCoordinate(boardX, boardY))
{
// Invalid coordinate. Don't bother.
continue;
}
// Get the rectangle on the image matching the marble to recognize at the current board position
var targetRectangle = SigmarCoordinateHelper.GetMarbleRectangle(boardX, boardY);
// Get some pixels around the marble and figure out if they are bright enough to be highlights
var targetColorBottom = boardBmp.GetPixel(targetRectangle.X + targetRectangle.Width / 2, targetRectangle.Bottom - 2);
var targetColorTop = boardBmp.GetPixel(targetRectangle.X + targetRectangle.Width / 2 - 8, targetRectangle.Top);
if (targetColorBottom.GetBrightness() > 0.85f || targetColorTop.GetBrightness() > 0.85f)
{
highlightedPoints.Add(new Point(boardX, boardY));
}
}
}
return(highlightedPoints);
}