How to set a Constraint ?

[Franckapik]

I am sorry but i don't understand how to set a constraint, for example Hinge.

I don't really understand typescript yet, and wrote the code below but i am stuck in using the hook .

https://gist.github.com/Franckapik/0540c44ca05e07ae5573178ff5eb6793

Is that correct syntax ? How is it possible to add constraint to the world next ? have you got example ?

Thank you really much !!

F.

[Franckapik]

Ok i've got it !
I just have to write it like this :
usePointToPointConstraint(cube, wheelShapeLF, { pivotA: [0, 0, 0], pivotB: [0, 2, 0] })
I just cloned the repo and see others examples like MondayMorning.

Just to understand, the examples are not linked in the docs because they are in development ?
I hope i could help by trying to make a rigid car using constraints and forceImpulse according to cannon.js example.

[Franckapik]

And i just realized that "spring" could mean another thing than the season according to this usefull image :

:)

[codynova]

Hey @Franckapik, it looks like you got it figured out, but you had the useHingeConstraint function signature wrong. It should be:

useHingeConstraint(bodyA, bodyB, options, deps)

These are described in the readme under the API section. It would probably be a good idea to mention the examples directory in the readme too.

function useHingeConstraint(
  bodyA: React.MutableRefObject<THREE.Object3D>,
  bodyB: React.MutableRefObject<THREE.Object3D>,
  optns: HingeConstraintOpts,
  deps: any[] = [],
): ConstraintApi

[Franckapik]

Thank you @codynova for your help !
So now, i have created a car and try to move it with arrow key and applyImpulse.
My code is not really clean :/ but is there something wrong in the way i am using use-cannon ?

Thank you again !

https://codesandbox.io/s/github/Franckapik/NandY/tree/master/views?file=/src/3d/jsx/Essai.js

I am applying impulse on rear wheel, and try to rotate front wheel to turn the car but it seems that i have an issue on this...