HTML5 export for Godot 3.5 messing up operations with delta

[hiroto]

Godot Version

Godot 3.5

Question

The HTML5 export of my project messes up changes in position and scale.
What is going on?

I am guessing it might have to do with using delta, but I am not sure. Am I using it wrong?

Relevant Code Snippet

func rescale(delta):
	var rescaling_amount = self.scale.x * rescaling * delta
	self.scale.x += rescaling_amount
	self.scale.y += rescaling_amount

func _process(delta):
	vel += accel * delta
	self.position.y += vel
	rescale(delta)

HTML5 export running:

The rock and banner move slower and re-scale faster.

What it looks like when running in godot:

The stone and banner should be increasing in scale slowly.

editor-run-no-bug|271x499

[hiroto]

Here is the GIF proper of how it should be working (new users can’t display more than one per post)

[pham150603]

@hiroto

var rescaling_amount = self.scale.x * rescaling * delta

I think it is because Godot PC has a low delta ( < 1 ) so it scales down the exponent on the “self.scale.x”
While HTML has a higher delta ( > 1 ) so it grows exponentially
maybe remove the “self.scale.x” in the rescaling_amount and try to tweak the rescaling instead

[hiroto]

Isn’t Delta the milliseconds between frames? To have delta > 1, wouldn’t the game be running at 1 fps?

[pham150603]

sorry for the confusion I meant the rescaling_amount < 1

[pham150603]

also, you have 2 different scaling for the position and scale

~ self.scale.x =  self.scale.x + self.scale.x * rescaling * delta 
~ self.position.y = self.position.y + accel * delta * (t + 1)

Therefore you have different behaviors between the scale and position

[hiroto]

Yes, it is no issue that those two have different behavior.

The issue is the difference between the HTML and the in engine build.

[hiroto]

fixed it