No more bundles?

[Luminoth]

I was going about finally updating my projects that use bevy_rapier and noticed that it's moved away from using bundles. That makes it a little bit difficult (for me at least) to know which components are actually necessary now. Should I assume that in general if I had been defaulting it in the old bundles that I don't need to add it as a separate component now?

[sebcrozet]

That’s right, there is no more bundles. For rigid-bodies, the only required component is the bevy_rapier::prelude::RigidBody component. For colliders, the only required components is the bevy_rapier::prelude::Collider component.

All the other components are optional and will have their default values if they are not set. You may want to insert the optional components if:

• You want to set their value (for example, insert/modify the Transform component to set the body’s position).
• You want to read their values after they are modified by the physics engine. For example, inserting the Velocity components lets you read the value of the modified velocity after the physics updates.

[Luminoth]

Did the RigidBodyPositionSync component get replaced with something else? I'm having a hard time sorting out where that one went.

[sebcrozet]

The RigidBodyPositionSync isn’t needed any more since the position is automatically written back to the Transform (if it’s present).
If you are using TimestepMode::Interpolated for the timestep strategy, you can add the TransformInterpolation component instead of the former RigidBodyPositionSync::Interpolated.