/// <summary>
/// Place self to the target group
/// </summary>
/// <param name="target">Target group</param>
public void ToGroup(Group target)
{
if (Equals(target))
throw new InvalidOperationException($"Group {target} can`t move to self");
CurrentGroup?.Elements.Remove(this);
CurrentGroup = target;
}
/// <summary>
/// Remove self from current group
/// </summary>
public void RemoveFromGroup()
{
CurrentGroup?.Elements.Remove(this);
CurrentGroup = null;
}