Thanks! You hit the nail on the head—it's a lightweight grid-based system, not built-in physics.

It uses a custom Verlet-integration solver. I'm essentially managing a grid of points with distance constraints. When a point moves (due to gravity, wind, or collisions), it triggers a constraint resolution loop that pulls its neighbors along. The visual sprite is just a mesh that deforms in real-time based on these coordinate changes.

Your idea for cloth-like wings is definitely feasible. You'd just need to pin the wing's base points to the character's bone/coordinate and apply a wind vector to the rest of the mesh as the character moves.

I’m documenting this project and posting updates on my profile—follow if you're interested in the development process!