/// <summary>
/// Check the node is visited or not
/// </summary>
/// <param name="coord"></param>
/// <returns></returns>
private bool CheckCoordNodeUnVisited(FarmFieldCoord coord)
{
if (coord.isVisited)
{
return(false);
}
coord.isVisited = true;
return(true);
}
/// <summary>
/// Create total available land as per th provided X and Y max. values
/// </summary>
public void CreateTotalLand()
{
for (int i = 0; i < X_MAX; i++)
{
for (int j = 0; j < Y_MAX; j++)
{
FarmFieldCoord co = new FarmFieldCoord(i, j);
totalLand[i, j] = co;
}
}
}
/// <summary>
/// Get the avialable fertile lands
/// </summary>
public void GetConnectedFertileLands()
{
for (int i = 0; i < X_MAX; i++)
{
for (int j = 0; j < Y_MAX; j++)
{
FarmFieldCoord coord = totalLand[i, j];
if (!coord.isVisited)
{
int fertileLand = FillFertileArea(i, j);
if (fertileLand != 0)
{
fertileAreaMap.Add(fertileLand);
}
}
}
}
}
/// <summary>
/// Fill the fertile area from the start point of x and y
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns>return connected fertile land</returns>
private int FillFertileArea(int x, int y)
{
int fertileCoord = 0;
Queue <FarmFieldCoord> coordQueue = new Queue <FarmFieldCoord>();
coordQueue.Enqueue(totalLand[x, y]);
while (coordQueue.Count > 0)
{
FarmFieldCoord coord = coordQueue.Dequeue();
if (CheckCoordNodeUnVisited(coord))
{
if (coord.IsBarren)
{
continue;
}
fertileCoord++;
if (coord.X > 0 && !totalLand[coord.X - 1, coord.Y].isVisited)
{
coordQueue.Enqueue(totalLand[coord.X - 1, coord.Y]);
}
if (coord.X < X_MAX - 1 && !totalLand[coord.X + 1, coord.Y].isVisited)
{
coordQueue.Enqueue(totalLand[coord.X + 1, coord.Y]);
}
if (coord.Y > 0 && !totalLand[coord.X, coord.Y - 1].isVisited)
{
coordQueue.Enqueue(totalLand[coord.X, coord.Y - 1]);
}
if (coord.Y < Y_MAX - 1 && !totalLand[coord.X, coord.Y + 1].isVisited)
{
coordQueue.Enqueue(totalLand[coord.X, coord.Y + 1]);
}
}
}
return(fertileCoord);
}