Is there a rule in Unreal about which axis is used to move forward, right or up?

[ViaCognita]

I’m trying to understand how projectile movement component works. In the FPS Template, the BP_FirstPersonProjectile has this velocity.

To spawn the projectile it uses this code to add the rotation to spawn it.

Now it comes my question: Is there a rule that the X-axis is to move forward, the y-axis to the right and the Z-axis to the top?

Thank you.

[Rev0verDrive]

@ViaCognita

Is there a rule that the X-axis is to move forward, the y-axis to the right and the Z-axis to the top?

Yes. All movement (simulation) in engine is based on X is forward/backward, Y is right/left and Z is up down.