How to Hover player and un-Hover rigidbody player correctly?

I'm trying to write a code with logic:

- if Player presses Space they auto-jump towards a Cube and Hover at Cube position.

- if Player presses ALT they drop from the Cube and fall back to Ground.

Both Player and Cube have Rigidbodies. I want Player to hover at Cube position when it reaches cube position.

The code I'm using for Player to auto-jump to Cube position is

rb.AddForce((cube.transform.position - rb.transform.position) * forceMultiply);

The problem is that sometimes when Player jumps towards Cube at a weird angle, a collision occurs that sends Player flying way past the cube.

Currently I am trying to remedy this by doing code that if Player is within x distance of Cube, then

PlayerRigidbody.useGravity = false

and

PlayerRigidbody.Velocity = Vector3.zero

However, when I press ALT (with intended goal that Player stops hovering and falls back to ground), Player falls *some* but does not fully reach ground.

The code for when Player presses ALT is currently

PlayerRigidbody.useGravity = true

and

PlayerRigidbody.velocity = new Vector3(0, -500, 0);

but yeah, that doesn't fully work. Does anyone know how to successfully create a Hover effect and also how to successfully *cancel* a Hover effect so that Player fully falls back to ground with functioning gravity and velocity again?

 

On your RigidBody you could just use the Constraints > Freeze Position > Y value to stop it from falling, and then disable it afterwards.

 

That sounds like a cool approach!
I found this code for it, but when I put it in, I get an error:
"the contextual keyword 'var' may only appear within a logical variable declaration or in script code"...

Code (CSharp):

1. var originalConstraints : RigidbodyConstraints;
2. function Awake()
3. {
4.       originalConstraints = rigidbody.constraints;
5. }
6. function FreezeConstraints()
7. {
8.       rigidbody.constraints = RigidbodyConstraints.FreezePositionY;
9. }
10. function UnFreezeConstraints()
11. {
12.       rigidbody.constraints = originalConstraints;
13. }

Do you know how this is supposed to be place into the code properly so that Unity likes it lol?

 

That looks really old, probably when Unity was still using UnityScript. You're going to have to convert it from JavaScript to C#.

If you can't convert this to C# on your own, I'd suggest you watch some tutorial videos or take a class on programming, as it's going to get a lot harder from here on, but if you're going to muster on anyways, here's that code but in C#.

Code (CSharp):

1. RigidbodyConstraints originalConstraints;
2. void Awake()
3. {
4.       originalConstraints = rigidbody.constraints;
5. }
6. private void FreezeConstraints()
7. {
8.       rigidbody.constraints = RigidbodyConstraints.FreezePositionY;
9. }
10. private void UnFreezeConstraints()
11. {
12.       rigidbody.constraints = originalConstraints;
13. }