How to clean scene?

godotuser

Hello, is here some way to "rebuild" visual part of programm?

I need to create several similar sprites, what I do this way:

func _sprite():
	for i in range (0,count):	
		sprite = Sprite.new() 
		add_child(sprite,false)
		sprite.set_some_properties...

But in the second part of programm I need to rebuild scene with another count of sprites. I can do it, but when I simlply call the function _sprite again, it only creates new sprites and the previous sprites remains rendered. Is here some way to clean the scene before?

Thank you.

Erich_L

You can call queue_free() on any node you're ready to discard.

godotuser

@Erich_L Thank you, but I don't need to delete sprite, I need to delete everything rendered (except Buttons). I also have lines drawn in the scene that I also need to delete.

Erich_L

If they are all children to the same node then this job will be easier. You could just queue_free() on the parent. You could also place objects you want to wipe in a group and then iterate through those and queue_free() them.

cybereality

So add_child() adds an object to the screen and remove_child() removes it from the screen. After you remove it you have to call queue_free() so that the memory is deleted as well (this does not delete the object on your hard drive, just on the screen).

godotuser

@Erich_L I dont know why, but it does not work... My code:

func _func1():
	for i in range (0,count):
		sprite = Sprite.new()
		add_child_below_node($Node, sprite,false)
		sprite.set_texture(preload("res://Ellipse.png"))
		sprite.show()

func _func2():
	$Node.queue_free()
	_func1()

And first sprites remain and new are spawned on them...

cybereality

You have to remove the Sprite, not whatever $Node is. You can do that by saving the reference to the Sprite in an Array and looping through the array (that is the simplest method):

var sprites = []

func _func1():
    for i in range (0,count):
        sprite = Sprite.new()
        add_child_below_node($Node, sprite,false)
        sprite.set_texture(preload("res://Ellipse.png"))
        sprite.show()
        sprites.push_back(sprite)

func _func2():
    for sprite in sprites:
        remove_child(sprite)
        sprite.queue_free()
    sprites.clear()
     _func1()

godotuser

@cybereality Genius, thank you!