How to me to make gradual disappearance Node2d?

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How to me to make gradual disappearance Node2d?

IGA22

How to me to make gradual disappearance Node2d?
Alpha the channel has to decrease with a certain speed.

func _button_pressed():  
          self.modulate = Color( 1, 1, 1,(alpha))
         pass

DaveTheCoder

You could use an AnimationPlayer, a Timer, or do it manually in _process() by keeping track of the elapsed time. I think an AnimationPlayer would be the simplest solution.

IGA22

I thought there is a short way.. i will use AnimationPlayer

DaveTheCoder

A Tween might work too. I forgot about that, since I haven't used it, but it looks like it could be simpler than AnimationPlayer.

DaveTheCoder

I just experimented with Tween. Here's a working example (Godot 3.5.1):

extends Sprite

func _ready() -> void:
	
	var tween: Tween = Tween.new()
		
	# Interpolate alpha channel from 1.0 to 0.0 over 3.0 seconds, with 2.0-second delay.
	# warning-ignore:return_value_discarded
	tween.interpolate_property(self, "modulate:a", 1.0, 0.0, 3.0,
			Tween.TRANS_LINEAR, Tween.EASE_IN_OUT, 2.0)

        add_child(tween)

 	# warning-ignore:return_value_discarded
	tween.start()
	
        yield(tween, "tween_all_completed")
	tween.queue_free()