AGS.Editor.GUIEditor.SetSelectedControlToControlAtPosition C# (CSharp) Метод

        private void SetSelectedControlToControlAtPosition(int mouseX, int mouseY)
        {
            GUIControl controlFound = null;
            int zorderFound = -1;
            foreach (GUIControl control in _gui.Controls)
            {
                if ((mouseX >= control.Left) && (mouseX < control.Left + control.Width) &&
                    (mouseY >= control.Top) && (mouseY < control.Top + control.Height) &&
                    (control.ZOrder > zorderFound))
                {
                    controlFound = control;
                    zorderFound = control.ZOrder;
                }
            }

            _selectedControl = controlFound;

            // check for ctrl

            if (controlFound != null)
            {
                if (Utilities.IsControlPressed())
                {
                    if (_selected.Contains(controlFound) && _selected.Count > 1)
                    {
                        _selected.Remove(controlFound);
                        if (_selected.Count > 0)
                        {
                            _selectedControl = _selected[_selected.Count - 1];
                        }
                        else _selectedControl = null;

                    }
                    else if (!_selected.Contains(controlFound))
                    {
                        if (controlFound.MemberOf != null)
                        {
                            foreach (GUIControl gc in controlFound.MemberOf)
                            {
                                _selected.Add(gc);
                            }
                        }
                        else _selected.Add(controlFound);
                    }
                }
                else
                {

                    if (!_selected.Contains(controlFound))
                    {
                        _selected.Clear();
                        if (controlFound.MemberOf != null)
                        {
                            foreach (GUIControl gc in controlFound.MemberOf)
                            {
                                _selected.Add(gc);
                            }
                        }
                        else _selected.Add(controlFound);

                    }
                    _selectedControl = controlFound;
                }
            }
            else if (!Utilities.IsControlPressed())
            {
                _selected.Clear();
                _selectedControl = null;
            }

            if (_selectedControl == null)
            {
                DeSelectControl();
            }
        }