Queue_free freezes game

Help
,
1

Godot Version

Godot v4.2.2.stable.arch_linux

Question

Hi there, I got my game freezing when changing a part of my scene tree. I got a transition running during that loading time using an animationplayer(also tried _progress in one script - same result).

The animation player is basically controlling an alphavalue for a shader getting from 0 to 1 in a short time.

I got the bug down to a part of my functions:

I am connecting the signal of when the main part of the level is unloaded:

"

levelnode.tree_exited.connect(load_new_level)

"

Then I am calling this function:

"

func unload_level() ā†’ void:

print(ā€œLEVEL IS UNLOADEDā€)

onload nodes under %Worldviewport
if (is_instance_valid(levelnode)):

levelnode.queue_free()

%Transition/AnimationPlayer.play(ā€œfade outā€)

levelnode=nul

"

%Transition/AnimationPlayer.play(ā€œfade outā€) ā† calling the fading animation which is not seen until after the freeze. I can put

await get_tree().create_timer(X).timeout

to see X seconds from my animation before the freeze. Freeze is about 1-3seconds. I donā€™t care that the game loads for 1-3seconds. Does not matter. But the Animation should not pause/freeze during that loading time.

So how to unload part of my level and still have my transition playing while doing it?

2

You canā€™t queue freeing it before youā€™re done with it, itā€™ll be freed at the end of the frame, instead make it call some finishing method at the end of the animation, or wait for the animation to end

1 Like
3

Thanks for reading and giving it a shot.
The animation is NOT a part of the nodetree that is queued free. It freezes for 2-3seconds and runs fine afterward
ROOT
|-level
|-animation
|-other stuff
only level is queued free.

4

try load new level first, then free self

5

Did you ever find a solution to this? Iā€™m having the same issue, where I have a large level that Iā€™m removing from my scene tree, with a loading screen running. Despite using a thread to queue_free the level, the animation of the loading screen still freezes.

Same as OP, I do not care if it takes a few seconds to remove the level. It is just frustrating to not be able to get a simple animation loop to play without freezing, even using threads. Iā€™m currently down a dumb rabbit hole of removing sections of the level with set timer delays to try and get the thing to work without freezing the animation.

6

Not a very good solution. I donā€™t remember exactly. It was some workaround like throwing prints all over the place, finding out where it freezes and since it is a transition I changed the transition to start after the freeze. Never really got it not to freeze.
But since it is a transition between scenes it now at least looks acceptable.

7

Ah thatā€™s a bummer. Yeah it seems silly that I can create separate threads specifically to remove an old level and load the new one, and leave the main thread for literally just a little animation, and it still freezes and lagsā€¦