Hovering ship

[Komega]

@n00854180t;76128

Yep, this would be approximating a spring constraint, and give you the desired effect.

@OP, check out Verlet Integration, you can build a simple spring like @jwatte describes and it doesn’t require complex math.

Well Verlet integration is for cloth and things like this (rope, cable…) I don’t understand why using it could help in my case ??

I would add an action that runs every tick (yeah, you have to do something like that) that checks the distance between UFO and ground (using a trace of some sort) and adds an upwards force proportional to the inverse of the square of the distance between UFO and ground, and proportional to the downwards velocity of the UFO. This ends up being a kind of PID controller for the height of the UFO. Then, add a downwards force, such as gravity, and crank up the trace and down-velocity proportions to make it hover at the height you want.

I don’t even know ho to simply add gravity to my actor !
Mathematics don’t afraid me so much, but I don’t know how to tell UE4 :

“Please take this ground distance and add me an upward force man !”

I create a Spring Arms and I try to copy what Z-enzyme do, but we don’t start our project by the same way, he use 4 axis where I just have an actor Oo I wrote on him topic for a kind of tutorial because I’m sooo newbie .