/// <summary>
/// Constructor
/// </summary>
public Pathfinder()
{
random = new Random();
start = new Position();
target = new Position();
check = new Position();
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="x">horizontal coordinate</param>
/// <param name="y">vertical coordinate</param>
/// <param name="g">number of steps from the starting point</param>
/// <param name="parent">position leading to this position (default = null)</param>
public Position(int x, int y, Position parent)
{
location = new int[] { x, y };
this.parent = parent;
g = parent.g + 1;
}