Inconsistent Block Collisions
Update 1.196 in August 2020 featured a change in block collisions for most if not all armor blocks at the time, and a handful of non-armor blocks. This update slightly shrank the collider meshes of the updated blocks, allowing sub-grid contraptions with flush faces to move nearly seamlessly against one-another. Community members Splitsie and JackRPG demonstrated these changes at the time. (Videos linked Here and Here respectively.)
Unfortunately, It seems that this QOL measure hasn't been maintained through later updates. Multiple Feedback and Bug reports since 2020 detail various inconsistencies and problems with collision, Mostly focused on particular (New/DLC) blocks that players wished would have a smaller hitbox, or existing blocks (Armor Panels, Windows) that seemed just as deserving of smaller collision meshes. These have been accounted for on a case-by-case basis with the latter of my examples being solved, but many fly under the radar. In my experience playing and talking to other community members, there's an acknowledgement that even the basic armor-shape collisions don't slide seamlessly as they did in 1.196. I love playing with moving sub-grids, hangar doors and folding mechanisms, and the goal targeted by the 1.196 update's collision adjustment is extremely positive for the engineering spirit of the game.
What should be done?
I don't quite think this is a specific Bug, but an initiative by the development team that seems put aside that I'd like to bring more attention to. Another pass at shrinking hitboxes away from their block boundaries VERY slightly may be all that needs done, but I'd argue that should be done with all blocks, and made a critical step for any new blocks added in the future.
A simple example:
Update 1.196 Isn't accessible in the Steam Betas system to rollback to for direct comparison testing, But I've attached a recent video example of a Large Grid Subgrid armor-doors on Advanced Rotors that require block/grid updates to move due to intense friction with surrounding blocks. Filmed and Reported on the most recent version: 1.207.022.
-Rotor Displacements are set to -0.20, what appears to be as flush with the surrounding grid as possible. (Higher or lower values restrict the rotor even more)
-Experimental-Strength Torque values enabled in world settings don't improve the movement, neither does Sharing Inertia Tensor.
-Testing replicated in space, gravity not influencing the matter.
-The door with Armor Panels (Left, Orange) naturally has less surface area, and less trouble opening, but still can't on it's own.
-doors like this cannot be closed flush using Blast Door blocks, due to the curve of the armor.
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