Some Parts needs World Stabiliser on [1.4.0 <= KSP <= 1.11.2], and blow up on KSP 1.12.x

[Lisias]

The following parts

• HL_AirshipEnvelope
• HL_AirshipEnvelope_Octo
• Blimp
• HL_AirshipEnvelopeHecto

Have collider problems that are impacting [1.4.0 <= KSP <= 1.11.2], and are show stoppers on KSP 1.12.x

For [1.4.0 <= KSP <= 1.11.2] installing World Stabiliser is an acceptable work around.

For KSP 1.12.x there's no known work around (WS is useless for this parts). The only short term measure is to temporarily withdraw these parts on KSP 1.12.x until I fix them.

[Lisias]

I completely missed this. The affected parts are still using the DAE format.

Anyway, temporarily deactivating the parts in KSP 1.12.x on commit https://github.com/net-lisias-kspu/HLAirships/commit/709e7e21f0f0c851f9f50d2da420d1e76db4244a

[Lisias]

Breaking news! This problem also affects KSP 1.3.1, but on a different way!!! :)

When launching one of these parts alone, it sinks under the runway, and keep sinking until it hits the water sphere - and so explodes! :D

This behaviour is, essentially, identical to the one I'm getting with KSP 1.12.x - with the difference that on 1.12.x the part goes straight to hell, instead of slowly sinking (the sinking is so hard that anything attached to it is destroyed by impact on the runway on the way down!).

This hints that whatever Squad had implemented on KSP 1.4 to handle something that ended up on the "Jump Jack Effect" (i.e., the part jumping to 1.000 meters more or less) and that was counter-acted by World Stabiliser, now it's no more and we have again a behaviour similar to KSP 1.3.1!

Oukey… Reworking the meshes is, really, the only way.

[Lisias]

Another evidence:

This setup, on KSP 1.12.x, instantly explodes the cockpit by impact on the runway.

[Lisias]

For reference:

The Envelope, Envelope Octo and Envelope Hecto are different sizes from the following mesh:

And this is the Ludo Blimp:

[Lisias]

Things almost perfect. :)

[Lisias]

Perfect! :)

[Lisias]

Closing/Fixed.

[Lisias]

had to rework the assets because they got incompatible with crafts made with the original parts. Now they are 100% compatible (crafts made from previous versions of HLA/KSP/both will now load fine and work the same (apart from blowing up. :) ).

This sample craft was made using the HLAirships 5.3 on KSP 1.4.3, and was loaded later by removing the 5.3 assents and installing Core:

Late implementation on commit https://github.com/net-lisias-ksp/HLAirshipsCore/commit/95e3fc4fa20f11268e6a58b919c560507113da72