iOS: GodotPhysics seams to stop after some time, what to check?

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:bust_in_silhouette: Asked By MikeMikeMike

Hi…,

my 3D game uses GodotPhysics, on Windows 10 this works correctly.

On iOS, after some level-starts GodotPhysics stops, the level opens, but no Physics is calculated anymore. (e.g. RigidBodies don’t fall/move anymore)

Therefore I have added this code to the levels, but this doesn’t fix it:

func _ready():
	PhysicsServer.set_active( true )

Any ideas?

Thanks

Mike

everything else is working correctly ? Inputs, process(), animations, shaders ?
You can check linear velocity, sleeping, delta of physics_process(), step of integrate forces()

It is peculiar, that it happens after some time. I would assume it is about sleeping property. Or do You pause anything before it happens in code ? Or is there any yield() in integrate forces ?

Inces | 2022-06-14 13:55

Hi @Inces,

yes, everything else is working, as you said, inputs, process, animations, shaders.

You can check linear velocity, sleeping, delta of physics_process(), step of integrate forces()

Yes, good to know.

It is peculiar, that it happens after some time.

(Sometimes) after instancing and starting a new level.tscn file.

Or do You pause anything before it happens in code ?

No, I am not pausing anything.

Or is there any yield() in integrate forces ?

No, it’s not.

I will take a look at sleeping, delta of physics_process(), step of integrate forces().

Thanks

Michel

MikeMikeMike | 2022-06-14 19:33

Hi @Inces,

did more tests. I send my iOS app in the background. After opening it after some minutes and instancing/starting a new level.tscn I see this:

physics_process() is running
_integrate_forces() is not running anymore

Is this a bug? What to check?

Thanks

Mike

MikeMikeMike | 2022-06-16 19:52

It still sounds like what sleepingdoes. Try to check it in various places of code, or just set can_sleep of every instance to false

Inces | 2022-06-16 20:25

Hi Inces,

I’ve done more tests.

When one RigidBody has can_sleep=True, all other RigidBodies will not run integrate_forces() anymore, after some level-reloads on iOS.

This looks like a bug, I will report this here: [GodotPhysics and Bullet] One RigidBody with `can_sleep` enabled will stop `_integrate_forces()` for all RigidBodies, after some tscn-scene reloads · Issue #62182 · godotengine/godot · GitHub

Thanks again

Mike

MikeMikeMike | 2022-06-18 17:26