/// <summary>
/// Destroy, and free memory.
/// </summary>
public void Destroy()
{
_closedSet.Clear();
_openSet.Clear();
_closedSet = null;
_openSet = null;
_aStarGrid = null;
}
/// <summary>
/// Create a new A* path.
/// </summary>
/// <param name="aStarGrid">The aStarGrid the path is on.</param>
/// <param name="start">The starting point on the aStarGrid.</param>
/// <param name="end">The ending point on the aStarGrid.</param>
/// <param name="diagonalMovement">Whether diagonal movement is allowed.</param>
public AStarPath(AStarGrid aStarGrid, Vector2 start, Vector2 end, bool diagonalMovement = true)
{
_openSet = new HashSet <AStarNode>();
_closedSet = new HashSet <AStarNode>();
_aStarGrid = aStarGrid;
Diagonal = diagonalMovement;
Reset(start, end);
}