How can you combine two sprites into one AnimationFrame?

[artemisia]

Godot Version

4.7.2

Question

Just tinkering with idea of Doom, and came across the actual fire it’s separate sprite how can I combine both the idle and fire together to make full animation of firing?

[gertkeno]

Use another sprite for just the flash, only show it for a short time after firing

[artemisia]

So need to call it from code?

If make AnimatedSprite animation, the flash be during first frame but how to time it?