[Feature] Animate pin activation

[EntityinArray]

Motivation

Hello, thank you for your work on this amazing sim.
Currently, it's only possible to set the duration pins are active for. There is no way to activate and deactivate them mid-simulation

Proposal

It would be great to have a keyframable 'Enabled' property for pins. These keyframes can be transferred into the engine the same way animation keyframes are transferred.
Having 'Pull' option be keyframable would be great too i think...
Duration option could be removed,

Alternatives Considered

No response

Additional Context

No response

Contribution Agreement

• I confirm that any code, patches, scripts, attachments, or other copyrightable material I include in this issue may be used, reproduced, modified, and distributed by this project under the Apache License 2.0 or as otherwise described in CONTRIBUTING.md.
• This is a feature request from the community (please provide a reference below).

Community Reference

No response

[ryichando]

Hi! Releasing the pin is straightforward, but the transition from “unpinned” to “pinned” needs care. For example, how should we treat dangling vertices that suddenly need to snap to a distant target location?

One feasible scenario is to let a vertex move freely, then suddenly “freeze” it as immovable. Some good UX will be needed. I think I can work on this. Marked queued.

[EntityinArray]

Hi, thank you for response.
My idea, pinning a vertex mid-simulation should just freeze it in place.

[ryichando]

Thanks! Sounds totally feasible. Stay queued for now.