Can you unfreeze a rigidbody.constraint position as you can freeze them?

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Yes, a simple question from me!

I want to freeze the rigidbody's Y position when the game is paused, as in my script:

if(GameManager.gamePaused == true) { transform.rigidbody.constraints = RigidbodyConstraints.FreezePositionY; }

And of course, when I unpause it I naturally want to unfreeze it. Is there a simple way to do that? I've looked around the various tutorials and Unity's scripting API pages, can't find anything about it.

Thanks!

Answer 1

Best Answer

Answer by aldonaletto · Apr 12, 2012 at 03:21 AM

RigidbodyConstraints are bit masks, thus you can use + or | (bitwise OR) to set several constraints at once. To disable a single constraint, AND rigidbody.constraints with the negated mask (~):

   rigidbody.constraints &= ~RigidbodyConstraints.FreezePositionY;

But if you don't have other constraints active, just set rigidbody.constraints to RigidbodyConstraints.None:

   rigidbody.constraints = RigidbodyConstraints.None;

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CaptainIcy281 · Apr 12, 2012 at 03:24 AM 0

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But see, I have all rigidbody Rotations disabled in the Inspector, so using Rigidbody.Constraints.None enables the rotation on unpause. I was hoping there was a simple way to just enable position.Y

I can use some other method I suppose, hmm.

Eric5h5 · Apr 12, 2012 at 03:37 AM 1

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He already explained the simple way to just use FreezePositionY. The constraints are bitmasks, so you turn on/off the bits you want.

CaptainIcy281 · Apr 12, 2012 at 03:40 AM 0

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Right, yeah, sorry. That works fine. Thanks, you two. ;)

harschell · Oct 26, 2012 at 05:46 AM 0

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hi can you tell me why this is not working whats Wrong here???? void getInput() { if (Input.GetButtonDown("Jump")) { rigidbody.constraints &= ~RigidbodyConstraints.FreezePositionY; flipGravity(); Debug.Log("gravity Flipped"); } }

aldonaletto · Oct 27, 2012 at 01:35 AM 0

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This code isn't enough to know what is going on. You should post a new question with the relevant part of your code: where rigidbody.constraints are set, show the function flipGravity() etc.

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Answer 2

Answer by gilley033 · Oct 15, 2013 at 08:31 PM

Another way to do this is to simply save the constraints in Awake or Start before changing them.

 var originalConstraints : RigidbodyConstraints;
 
 function Awake()
 {
      originalConstraints = rigidbody.constraints;
 }
 
 function FreezeConstraints()
 {
      rigidbody.constraints = RigidbodyConstraints.FreezePositionY;
 }
 
 function UnFreezeConstraints()
 {
      rigidbody.constraints = originalConstraints;
 }

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Can you unfreeze a rigidbody.constraint position as you can freeze them?

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