Hi there,
Sry for my English i am from Germany.
I found a Way to make the Arrow works in all directions 360° and shows always in the right direction. No 0.0 Coordinates. (Sure u need this for a branch to say, front or back)
Use a Vector Lerp (World coordinates from Objekt and Player) with Alpha 10. This will Mirror the World Coordinates from the Mark Object.
It will calculate a Straight line from the Mark Object to the player and behind him.
That way, u got alway Mirror Coordinates.
After this u have to invert some stuff und leave the arows on the screen ends.
Works Perfect. I hope this will help a lot of people who got Problems with that. Take me the hole Weekend to check this out
Greeting from Germany