Axial look on Targeted projectile returns incorrect x&y vector results

[cambates99]

Version Information

Forge version: 40.2.1 Psi version: 2.0.0

Further Information

Steps to reproduce:

1. You can visualize the discrepancy using this spell: https://imgur.com/fQuhc4A
2. Fire an arrow into a wall and look at it's axial look vector (this works for non-arrow projectiles)
3. It's axial look vector is correct only in the z-axis direction

What I expected to happen: I expect the axial look of the projectile to have the correct x and y vectors.

What happened instead: Projectiles will have a correct z vector, but reversed x and y vector

[TheFurryDevil]

I don't think this is on Psi. If you look at arrows with F3 + B you'll see that their look vector is not what you expect. Not sure what they are looking it, it's only semi related to their flight direction. As a workaround you can get the entity motion vector and normalize it, this works even for arrows stuck in walls, even though technically they are not moving anymore.

[Kamefrede]

As TheFurryDevil said, this is a vanilla thing, and the behaviour is not constant between all projectiles, and as to not special case any kind of projectile we'll be keeping it the same.

[cambates99]

Makes sense, I should have validated the projectile's axial look vector in vanilla first. Thank you!