public static int numberMovesHV(int p)
{
// Returns the number of Horizontal/Vertical moves you can make of a person piece by discarding this piece.
// Also useful for divining the # of certain directions in a tile before deciding whether to put it in the bag or not
return((Pieces.up(p) ? 1 : 0) + (Pieces.down(p) ? 1 : 0) + (Pieces.left(p) ? 1 : 0)
+ (Pieces.right(p) ? 1 : 0));
}
private static int[] minMaxRoads(int p)
{
// Returns minimum and maximum road numbers for a piece to weed out those dumb ones that just turn right around in a tight space.
// Minimum is returnValue[0], max is returnValue[1].
ArrayList a = new ArrayList(); a.Clear();
if (Pieces.northwest(p))
{
a.Add(0);
}
if (Pieces.up(p))
{
a.Add(1);
}
if (Pieces.northeast(p))
{
a.Add(2);
}
if (Pieces.right(p))
{
a.Add(3);
}
if (Pieces.southeast(p))
{
a.Add(4);
}
if (Pieces.down(p))
{
a.Add(5);
}
if (Pieces.southwest(p))
{
a.Add(6);
}
if (Pieces.left(p))
{
a.Add(7);
}
int minRoad = 9, maxRoad = -1;
for (int i = 0; i < a.Count; i++)
{
if ((int)a[i] < minRoad)
{
minRoad = (int)a[i];
}
if ((int)a[i] > maxRoad)
{
maxRoad = (int)a[i];
}
}
int[] returnValue = new int[2];
returnValue[0] = minRoad; returnValue[1] = maxRoad;
return(returnValue);
}
private static void connectPlaceTile(int p /* piece */, int x, int y, int[,] a)
{
// The piecesConnect routine now uses a 7x7 array of integers to calculate connections, which
// represents a 3x3 grid of tiles each of which has 3 sides (left, right, center) that can have roads.
// They intersect of course (hence a 7x7 grid instead of 9x9), and the purpose of this is to
// modify the array to add in a tile's connections, with a +1 to any node where a road is. Connections
// between tiles will appear as numbers > 1 at the tiles' edges.
// The coordinates x and y are tile coordinates where the center is (0,0), so they range from -1 to +1.
int cx = 3 + x * 2; //-- Center X: the position of the center of the tile in the array.
int cy = 3 + y * 2;
a[cy, cx]++; // tiles always serve their center
if (Pieces.up(p))
{
a[cy - 1, cx]++;
}
if (Pieces.down(p))
{
a[cy + 1, cx]++;
}
if (Pieces.left(p))
{
a[cy, cx - 1]++;
}
if (Pieces.right(p))
{
a[cy, cx + 1]++;
}
if (Pieces.northwest(p))
{
a[cy - 1, cx - 1]++;
}
if (Pieces.southeast(p))
{
a[cy + 1, cx + 1]++;
}
if (Pieces.southwest(p))
{
a[cy + 1, cx - 1]++;
}
if (Pieces.northeast(p))
{
a[cy - 1, cx + 1]++;
}
}
public static int rotatePieceOneEighth(int p)
{
// Rotates a piece clockwise.
int newPiece = p;
newPiece = Pieces.setDirections(newPiece, Pieces.northwest(p), Pieces.southeast(p), Pieces.southwest(p), Pieces.northeast(p));
newPiece = Pieces.setDiagonals(newPiece, Pieces.left(p), Pieces.up(p), Pieces.down(p), Pieces.right(p));
return(newPiece);
}