static void PlayAllHorseMovements()
{
chess = new int[height, width];
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
chess[i, j] = 0;
}
}
chess[startY, startX]++;
var startPosition = new Position() { X = startX, Y = startY };
queue = new Queue<Position>();
queue.Enqueue(startPosition);
while (queue.Count > 0)
{
var currentPos = queue.Dequeue();
TryDirection(queue, currentPos, +1, -2);
TryDirection(queue, currentPos, -1, -2);
TryDirection(queue, currentPos, +2, -1);
TryDirection(queue, currentPos, +2, +1);
TryDirection(queue, currentPos, +1, +2);
TryDirection(queue, currentPos, -1, +2);
TryDirection(queue, currentPos, -2, +1);
TryDirection(queue, currentPos, -2, -1);
}
}
static void TryDirection(Queue<Position> queue, Position currentPos, int deltaX, int deltaY)
{
int newX = currentPos.X + deltaX;
int newY = currentPos.Y + deltaY;
if (newX >= 0 && newX < width && newY >= 0 && newY < height
&& chess[newY, newX] == 0)
{
chess[newY, newX] = (chess[currentPos.Y, currentPos.X] + 1);
Position newPos = new Position()
{
X = newX,
Y = newY
};
queue.Enqueue(newPos);
}
}