/// <summary>
/// Attempts to find the corrosponding <see cref="Index"/> from a position in 3D space.
/// This method is very expensive and performs a distance check for every node in the seach space.
/// This method will always return the <see cref="Index"/> that is the shortest distance from the specified position even if this position is well outside the bounds of the grid.
/// </summary>
/// <param name="worldPosition">The position in 3D space to try and find an index for</param>
/// <returns>The closest <see cref="Index"/> to the specified world position</returns>
public Index findNearestIndex(Vector3 worldPosition)
{
// Make sure the grid is ready
if (verifyReady() == false)
{
return(null);
}
// Pass the call through to the raw grid
return(searchGrid.findNearestIndex(worldPosition));
}