/// <summary>
/// Removes the node at the specified position from the grid.
/// A node will only be removed if there exists a node at
/// that position.
/// </summary>
/// <returns>True if the operation succeeded</returns>
public bool RemoveNode(Point pos)
{
// Don't continue if the node doesn't exist
var node = NodeAt(pos);
if (node == null)
{
return(false);
}
// Remove the node itself
_nodeMap.Remove(node.Position);
Nodes.Remove(node);
// Destroy fields
_fieldBuilder.DestroyFields(node);
return(true);
}