/// <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);
}
/// <summary>
/// Plays the given solution.
/// </summary>
/// <param name="solution">Sequence of plays to solve the board.</param>
private void PlaySolution(List <Play> solution)
{
var inputService = new InputService(Program.OpusMagnumProcessName);
foreach (var play in solution)
{
// Click the first tile
Point windowFirstTilePoint = SigmarCoordinateHelper.GetWindowCoordinateOfTileCenterOnBoard(play.FirstTile);
inputService.SendMouseLeftButtonClick(windowFirstTilePoint.X, windowFirstTilePoint.Y);
Thread.Sleep(50); // Leave the game some time to react.
// Click the second tile
Point windowSecondTilePoint = SigmarCoordinateHelper.GetWindowCoordinateOfTileCenterOnBoard(play.SecondTile);
inputService.SendMouseLeftButtonClick(windowSecondTilePoint.X, windowSecondTilePoint.Y);
Thread.Sleep(50); // Leave the game some time to react.
}
}
/// <summary>
/// Browses the board and returns marbles that are considered playable: they have at least 3 empty tiles around them,
/// and for metals, they are the first remaining in the sequence.
/// </summary>
/// <param name="board">Board to browse.</param>
private IEnumerable <Marble> GetPlayableMarbles(Board board)
{
var firstMetalTileInSequence = board.GetFirstMetalRemainingInSequence();
for (int x = 0; x < board.Tiles.GetLength(0); x++)
{
for (int y = 0; y < board.Tiles.GetLength(1); y++)
{
var tile = board.Tiles[x, y];
if (tile == Tile.Empty)
{
continue;
}
if (tile >= Tile.Lead && tile <= Tile.Gold && tile != firstMetalTileInSequence)
{
// We are on a metal tile that cannot be played yet because there is another metal coming before it in the sequence.
continue;
}
// We are looking for 3 contiguous neighbors that are free
int lastFreeContiguousNeighbors = 0;
int?firstFreeSequence = null;
foreach (var neighbor in GetNeighbors(new Point(x, y)))
{
// A neighbor is considered free if it's out of the board or if it's an empty tile
if (!SigmarCoordinateHelper.IsValidBoardCoordinate(neighbor.X, neighbor.Y) ||
board.Tiles[neighbor.X, neighbor.Y] == Tile.Empty)
{
// This neighbor is free. Increment the sequence.
lastFreeContiguousNeighbors++;
// If we already found 3 contiguous neighbors, we're good. Stop searching.
if (lastFreeContiguousNeighbors == 3)
{
break;
}
}
else
{
// This neighbor isn't free.
// We have to reset the sequence of contiguous free neighbors.
// We just keep the first sequence in memory so that it can be added to the last sequence.
if (firstFreeSequence == null)
{
firstFreeSequence = lastFreeContiguousNeighbors;
}
lastFreeContiguousNeighbors = 0;
}
}
// We have finished browsing the neighbors in a clockwise fashion (so that every last one is contiguous from the previous one).
// To determine if the spot at (x,y) is free, we have to check if there are 3 contiguous free neighbors.
// We sum the last free contiguous neighbors number with the first free sequence, so that our starting point doesn't impact the result.
// I hope that makes sense.
if (lastFreeContiguousNeighbors + firstFreeSequence.GetValueOrDefault() >= 3)
{
// The tile at (x,y) is free. So we return it.
yield return(new Marble(x, y, tile));
}
}
}
}