x

Search in
Sort by:

Question Status:

Search help

  • Simple searches use one or more words. Separate the words with spaces (cat dog) to search cat,dog or both. Separate the words with plus signs (cat +dog) to search for items that may contain cat but must contain dog.
  • You can further refine your search on the search results page, where you can search by keywords, author, topic. These can be combined with each other. Examples
    • cat dog --matches anything with cat,dog or both
    • cat +dog --searches for cat +dog where dog is a mandatory term
    • cat -dog -- searches for cat excluding any result containing dog
    • [cats] —will restrict your search to results with topic named "cats"
    • [cats] [dogs] —will restrict your search to results with both topics, "cats", and "dogs"

Can angular constraints break when bAngularBreakable is false?

I am creating a constraint on a sphere with the following code:

 AplayerCode::AplayerCode(const class FPostConstructInitializeProperties& PCIP)
     : Super(PCIP)
 {
     UPhysicsConstraintComponent* cc = NewObject<UPhysicsConstraintComponent>(this);
     cc->ConstraintActor1 = this;
     cc->ConstraintActor2 = NULL;
     cc->ConstraintInstance.LinearXMotion = ELinearConstraintMotion::LCM_Free;
     cc->ConstraintInstance.LinearYMotion = ELinearConstraintMotion::LCM_Free;
     cc->ConstraintInstance.LinearZMotion = ELinearConstraintMotion::LCM_Free;
     cc->ConstraintInstance.AngularSwing1Motion = EAngularConstraintMotion::ACM_Free;
     cc->ConstraintInstance.AngularSwing2Motion = EAngularConstraintMotion::ACM_Locked;
     cc->ConstraintInstance.AngularTwistMotion  = EAngularConstraintMotion::ACM_Locked;
     cc->ConstraintInstance.bAngularBreakable = false;
 }
 

This seems to work as intended... I have a sphere that does not roll, but can turn left and right. However, sometimes after a collision the angular constraints seem to break and I start rolling even though I set bAngularBreakable to false. Any idea what could be causing this?

Also, I am assuming that creating a constraint tied to "this" will attach to the root component. In this example, my root component is a Sphere shape that is simulating physics.

Product Version: Not Selected
Tags:
more ▼

asked Jun 04 '14 at 03:08 PM in C++ Programming

avatar image

sinoth
82 13 13 13

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

1 answer: sort voted first

The problem is that I was creating the constraint in the constructor of a class. This is too early to initialize a constraint. I moved the code to the BeginPlay function and it seems to function as expected.

more ▼

answered Jun 16 '14 at 09:36 PM

avatar image

sinoth
82 13 13 13

(comments are locked)
10|2000 characters needed characters left
Viewable by all users
Your answer
toggle preview:

Up to 5 attachments (including images) can be used with a maximum of 5.2 MB each and 5.2 MB total.

Follow this question

Once you sign in you will be able to subscribe for any updates here

Answers to this question