Bug #9477: Landing Legs Positioned Differently and Sink Into Planetary Surface - Kerbal Space Program - Squad Bugtracker

Bug #9477

Landing Legs Positioned Differently and Sink Into Planetary Surface

Added by monaro2500 about 8 years ago. Updated almost 8 years ago.

Status:

Needs Clarification

Severity:

Normal

Assignee:

Category:

Physics

Target version:

Start date:

04/25/2016

% Done:

Version:

1.1.0

Platform:

Windows

Expansion:

Language:

English (US)

Mod Related:

Votes:

Description

Two issues. First, my bases are no longer stable as either the position or length of the landing struts are no longer the same as the previous version. This causes the base to sometimes explode. I'm rather disappointed with this bug, as setting up a base takes a considerable amount of time, and now they are unusable.

Second. LT-2 Landing Strut now sinks into the surface of planetary body. This causes issues with current landers now sitting on there engines, or trying to setup a base correctly.

Please see attached images of these issues.

screenshot239.png (945 KB) screenshot239.png	LT-2 Legs are no longer on the surface. Initial design had LT-1 and LT-2 struts at the same level.	monaro2500, 04/25/2016 12:37 AM
screenshot240.png (946 KB) screenshot240.png	Close view of strut off the surface.	monaro2500, 04/25/2016 12:37 AM
screenshot241.png (1020 KB) screenshot241.png	When lowering LT-1 strut, LT-2 struts will sink into surface.	monaro2500, 04/25/2016 12:37 AM
screenshot242.png (1.07 MB) screenshot242.png	Clipped image shows strut footpad beneath surface.	monaro2500, 04/25/2016 12:37 AM
screenshot243.png (1.14 MB) screenshot243.png	Another lander with clipped strut in surface. Claw is now on the surface where it should be at a predetermined height.	monaro2500, 04/25/2016 12:38 AM
Feet_turned_up.png (1.08 MB) Feet_turned_up.png	The LT-2 struts rotate to this state within seconds of deployment.	droideka30, 04/27/2016 08:33 PM
In_ground.png (1.31 MB) In_ground.png	The struts sink into the ground, about 1/3-1/2 of their length.	droideka30, 04/27/2016 08:33 PM
LT-1_in_flight.png (1.51 MB) LT-1_in_flight.png	[email protected]	droideka30, 04/27/2016 08:34 PM
LT-1_in_ground.png (1.2 MB) LT-1_in_ground.png	[email protected]	droideka30, 04/27/2016 08:34 PM

History

#1 Updated by sal_vager about 8 years ago

Severity changed from High to Normal

Hi monaro, the gels sticking in the ground is a visual effect only, the legs support to the same height as before.

I am sorry your base is breaking.

#2 Updated by jwenting about 8 years ago

sal_vager wrote:

Hi monaro, the gels sticking in the ground is a visual effect only, the legs support to the same height as before.

I have noticed a lander that in 1.0.5 would sit on the legs now sitting on the engine bell and wobbling because it is balancing. The change is small but there, I'd guess only about a few percent of the length of the LT-1 legs.
So the legs sticking into the ground does more than just a visual effect, it can affect gameplay if your legs are positioned such that prior there would have been very little ground clearance (as in 1.1 that can mean there is no ground clearance).

#3 Updated by monaro2500 about 8 years ago

I agree with jwenting. This is not just a visual effect. With the legs buried in the ground now creates a deal breaker in gameplay. Not only previously designed landers are landing on their engines or base frames, they also have issues when launching. At times, launching the lander will cause it to blow up as the legs are technically stuck beneath the surface. I've even seen the effect when you initially load onto a screen where there is a lander, and the lander jumps up and re-lands itself. I've got one on Gilly which launches itself, where I have to then wait for it to come down and re-land again. Does this each time I load it.

Now I'm not the only one who is seeing this issue, as it's beginning to be raised across forums.

http://forum.kerbalspaceprogram.com/index.php?/topic/137870-11-landing-struts-sinking-into-terrain-and-meshes/

For me, this ends any gameplay until the issue is resolved as I'm having unpredictable events occurring with landers which were perfectly stable in 1.0.5. I think this issue is higher priority than 'Normal'.

#4 Updated by droideka30 about 8 years ago

File Feet_turned_up.png Feet_turned_up.png added
File In_ground.png In_ground.png added
File LT-1_in_flight.png LT-1_in_flight.png added
File LT-1_in_ground.png LT-1_in_ground.png added

monaro2500 wrote:

I agree with jwenting. This is not just a visual effect. With the legs buried in the ground now creates a deal breaker in gameplay...
Now I'm not the only one who is seeing this issue, as it's beginning to be raised across forums.

I too have been having problems with the landing legs. (Macbook Pro, OSX 10.11.4) In addition to sinking into the ground, the LT-2 landing struts are showing a strange visual effect when deployed mid-flight. As the legs extend, the feet rotate to their normal deployed state, parallel to the plane of the ground. But as soon as the legs are fully deployed, the feet rotate back up, to this state:

The LT-2 struts rotate to this state within seconds of deployment.

The entire animation: http://imgur.com/a/rywU6
I'm not sure if this is just a visual glitch, or if it's related to the gameplay/physics bug.

Either way, when the craft lands, the legs sink about halfway into the ground:
The struts sink into the ground, about 1/3-1/2 of their length.

The visual glitch does not occur if the legs start extended from vehicle assembly, but they still sink into the ground.

This also seems to occur with the LT-1 struts, but not with the LT-05 micro struts.
555-555-0199@example.com

For me, this ends any gameplay until the issue is resolved as I'm having unpredictable events occurring with landers which were perfectly stable in 1.0.5. I think this issue is higher priority than 'Normal'.

I agree, this bug renders standard lander designs non-functional. Working landing legs are a necessity.