I want to use spline to manage the path and using the Character Velocity to determine wich way that Character moves, for example: When the player doesn’t have enough speed to across a ramp, he goes down.
check the inclination of the spline with dot product
accumulate this value - that’s the speed
use speed to progress through a spline
You’ll need to add friction as this preserves energy as perfectly as frame time allows it. And input. And a gazillion other things that makes it a game.
