itch.io

Sharing another snippet of something I had to kinda of workaround.

I have a couple UIPanel widgets that I add as children to a grid. Upon closing the room I call a function to remove all widgets that are 'bound' to the room. Sadly panels that are parented to a Grid don't fully delete themselves. I had to use this workaround to get them to completely delete:

if (_widget.getType() == UI_TYPE.PANEL) {
    _widget.__parent.remove(_widget.getID());
    UI.__destroy_widget(_widget);
}
_widget.destroy()

Full snippet for the logic to register and later remove widgets when the room ends:

global.widgets_to_remove = []
// Registers a widget that will be removed when the room ends
function widget_bound_to_room(_widget)
{
    array_push(global.widgets_to_remove, _widget)    
    return _widget
}
// Called on room end to remove bound widgets
function widgets_remove_room_bound()
{
    for (var _i = array_length(global.widgets_to_remove) - 1; _i >= 0; _i--) {
        var _widget = array_pop(global.widgets_to_remove)
        
        custom_event_call("widget_removing_room_bound", {
            widget_to_remove: _widget    
        });
        
        // Workaround for panels not removing correctly
        if (_widget.getType() == UI_TYPE.PANEL) {
            _widget.__parent.remove(_widget.getID());
            UI.__destroy_widget(_widget);
        }
        
        _widget.destroy()
    }
}

To use it:

1. When creating widgets call widget_bound_to_room on it, e.g:

var _crafting_group = widget_bound_to_room(new UIGroup("CraftingGroup", 0, 0, 250, 0, spr_back, UI_RELATIVE_TO.MIDDLE_CENTER))
_crafting_group.setInheritHeight(true)
_crafting_group.add(widget_bound_to_room(new UIPanel("ParentedPanel", _x, _y, _width, _height, spr_frame_simple)))

2. When the room ends call:

widgets_remove_room_bound();