How do I hover using only thrusters?

[Fliecheese]

I would like to keep sometihng in the air only using thrusters on the bottom, maybe using them to stabilize as well but it always ends up bouncing up and down a lot. What is the equation or way in which to keep it hovering just using thrusters? Thanks for any help.

[-HP-]

Probably using delta?

Try this:

Thrust = -$Altitude

Oh wait nevermind forget that. It probably does not work at all, I suck at things like that

[Matte]

@inputs Ranger Height
@outputs Trust
@persist Altitude

Altitude = Height-Ranger

Thrust = Altitude + $Altitude*5

This is untested, but it should work. Wire a ranger which measures altitude up to the Ranger-input, your desired altitude to the Height-input and your thrusters to the Thrust-output.

[Fliecheese]

I am sure I tried that and it bobbed up and down.

[dpidcoe]

Thrust = Altitude + $Altitude*5

Should be:

Thrust = Altitude - $Altitude*5

If you're moving upwards, your delta will be positive. You want less thrust if you're moving up so therefore you should subtract that delta from the total thrust.

[Fizyk]

When Altitude is Height - Ranger, if you move up it decreases, so Matte's code is right. I would use this instead:

@inputs TargetAltitude
@outputs Thrust
@persist Altitude

if(first()) {runOnTick(1)}

Altitude = entity():pos():z()

Thrust = TargetAltitude - Altitude - $Altitude * 5

[-HP-]

So I was at least on to something with the

- $Altitude

[Fliecheese]

Christ I never thought of using delta in it! That makes it so much easier. Thanks a lot guys.