public static int WalkMatrixPath(Matrix matrix, int indexX, int indexY, int startStep)
{
IDirectionSet2D matrixDirectionSet = matrix.DirectionSet;
Direction2D direction2D = new Direction2D(matrixDirectionSet);
matrix[indexX, indexY] = startStep;
var walkLenght = 1;
while (matrix.IsChangeDirectionPossible(indexX, indexY))
{
int deltaX;
int deltaY;
direction2D.GetDelta(out deltaX, out deltaY);
while (!matrix.IsValidEmptyCell(indexX + deltaX, indexY + deltaY))
{
direction2D.Increase();
direction2D.GetDelta(out deltaX, out deltaY);
}
indexX += deltaX;
indexY += deltaY;
matrix[indexX, indexY] = startStep + walkLenght;
walkLenght++;
}
return(walkLenght);
}
public bool IsChangeDirectionPossible(int indexX, int indexY)
{
Direction2D direction = new Direction2D(this.DirectionSet);
for (int i = 0; i < 8; i++)
{
int deltaX;
int deltaY;
direction.GetDelta(out deltaX, out deltaY);
if (this.IsValidEmptyCell(indexX + deltaX, indexY + deltaY))
{
return(true);
}
direction.Increase();
}
return(false);
}
