Infinite Ladder Glitch

[Arsonik]

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//edit Video Description

Craft File: http://www./download/9jexn9oz4831hxp/Sky+Ladder+Rover.craft

First time poster here, I registered because I've encountered this bug of sorts and I'm looking for information on it. This post isn't meant to be a formal bug report.

So heres the short form. I've made this rover and when I EVA from the command seat, I get to option to grab a ladder which is invisible. I didn't place it on the vessel myself and have no part pack that includes anything like it. If you grab it, you can climb it infinitely*. The orientation to the ladder is always the same relative to that of the rover... So I can position the rover however I want to make the ladder vertical, inclined, or horizontal. I tested this last night and this morning by wedging some paper into my W key to keep Shelcan Kerman climbing for 11 hours. I first discovered the bug on Minmus and thought it was a one in a million thing. But after repeating it several times on Minmus that got me interested enough to try and replicate it on Kerbin with a fresh load. Shelcan made it up to 27,000m and presumably the ladder became unstable and tumbled him to the ground. I was at work at the TOD so I'm not certain. When I tried to switch to the rover to inspect it for a cause of death, everything collided into the ground rapidly. My camera however was stuck to the invisible ladder and was sent flying into orbit at around 200m/s worth of acceleration. At the time of this post its up to 313,000m/s. This is all really hard to explain in text form.

So my main question and point of the thread is to ask if anyone has had a similar experience? If this is actually something common (couldn't find anything on google) then I will just let it die and enjoy my new sky ladder rover in solitude. But if this is something unheard of I'm going to go ahead and make a video, get some screenshots, upload the craft file, etc.

Looking forward to a response on this. Cheers. :cool:

Edited August 21, 2013 by Arsonik

[Motokid600]

Welcome to the community. Uhm..Wow. No I have never heard of that before. Pictures if you can it sounds kinda awesome lol.

[Captain Sierra]

How do I abuse this?

[Skorpychan]

How do I abuse this?

Ladders to orbit.

[Captain Sierra]

Ladders to orbit.

I know that XD. My question is how do I trigger it so I can use this to put EVA kerbals within space station rendezvous distance without wasting the time to fly the Orion 1 shuttle up there.

[CorruptDB]

Sounds like KSC is installing a space elevator

[sojourner]

Would be interested in the craft file.

[Arsonik]

I know that XD. My question is how do I trigger it so I can use this to put EVA kerbals within space station rendezvous distance without wasting the time to fly the Orion 1 shuttle up there.

Unfortunately you can't time warp on a ladder, or quick save. So its highly unpractical. Like I said, it took 11 hours to climb to 28km. Anyways, I just took a few short clips. Nothing crazy just to prove I'm not making stuff up. Gonna upload and then I will edit the OP with the video.

[tstehler1]

That would be an interesting way to get into orbit... Climb the ladder up to 75,000, then jump off and go full throttle EVA... *evil grin*

[magnemoe]

That would be an interesting way to get into orbit... Climb the ladder up to 75,000, then jump off and go full throttle EVA... *evil grin*

You would fall straight down, you need to move at 1800 m/s to stay in orbit.

[Skorpychan]

You would fall straight down, you need to move at 1800 m/s to stay in orbit.

Extreme basejumping?

[AlexanderB]

Felix would be proud.

[espm400]

You would fall straight down, you need to move at 1800 m/s to stay in orbit.

Technically, if you climbed to 2,868,750m you'd stay in orbit. It'd be an interesting way to achieve a perfectly circular KSO...

There's gotta be a mod out there to allow physical time warp when climbing a ladder.

[Arsonik]

Technically, if you climbed to 2,868,750m you'd stay in orbit.

I think I might need another computer to test that theory, might take a week or two to climb that high lol.

[Respawn]

I'm not sure but i did find a couple of suspects, in your craft file.

(part = ladder1_********** & partName = Strut) ? dunno what thats all about.??

However the last one at "line 3827" seems to be a telescopic ladder.. might be the thing your looking for.?

@line 2700:

PART
{
	part = ladder1_4293268456
	partName = Strut
	pos = 1.006282,1.035774,0.4672698
	rot = 0.5078726,0.8614324,6.535396E-07,-6.333856E-07
	attRot = 0,0,0,1
	mir = 1,1,1
	istg = 0
	dstg = 0
	sidx = -1
	sqor = -1
	attm = 1
	srfN = srfAttach,roverBody_4293269820
	EVENTS
	{
	}
	ACTIONS
	{
	}
}

@line 2721:

PART
{
	part = ladder1_4293268414
	partName = Strut
	pos = 1.01678,1.2326,0.4748701
	rot = -2.980233E-07,5.066396E-07,-1,8.42937E-08
	attRot = 0,0,0,1
	mir = 1,1,1
	istg = 0
	dstg = 0
	sidx = -1
	sqor = -1
	attm = 1
	srfN = srfAttach,roverBody_4293269820
	EVENTS
	{
	}
	ACTIONS
	{
	}
}

@line 3557:

PART
{
	part = ladder1_4293267666
	partName = Strut
	pos = 0.7557905,1.034293,0.4762356
	rot = 0.7071069,0.7071069,-6.141288E-08,-1.808227E-09
	attRot = 0,0,0,1
	mir = 1,1,1
	istg = 0
	dstg = 0
	sidx = -1
	sqor = -1
	attm = 1
	srfN = srfAttach,roverBody_4293269820
	EVENTS
	{
	}
	ACTIONS
	{
	}
}

@line 3827:

PART
{
	part = telescopicLadderBay_4293267442
	partName = Part
	pos = 0.4363301,1.61723,-0.7030039
	rot = -2.528811E-07,-0.7071066,1.264406E-07,0.7071069
	attRot = 0,0,0.7071067,-0.7071067
	mir = 1,1,1
	istg = 0
	dstg = 0
	sidx = -1
	sqor = -1
	attm = 1
	srfN = srfAttach,structuralPanel2_4293269878
	EVENTS
	{
	}
	ACTIONS
	{
	}
	MODULE
	{
		name = RetractableLadder
		isEnabled = True
		StateName = Retracted
		EVENTS
		{
			Extend
			{
				active = True
				guiActive = True
				guiIcon = Extend Ladder
				guiName = Extend Ladder
				category = Extend Ladder
				guiActiveUnfocused = True
				unfocusedRange = 4
				externalToEVAOnly = True
			}
			Retract
			{
				active = True
				guiActive = True
				guiIcon = Retract Ladder
				guiName = Retract Ladder
				category = Retract Ladder
				guiActiveUnfocused = True
				unfocusedRange = 4
				externalToEVAOnly = True
			}
		}
		ACTIONS
		{
			ToggleAction
			{
				actionGroup = None
			}
			ExtendAction
			{
				actionGroup = None
			}
			RetractAction
			{
				actionGroup = None
			}
		}
	}
}

[Arsonik]

The 3 Ladder1's are just the stock small ladders, they are on the opposite side of the rover.

The telescopic is also the long stock retractable ladder. That is only on the file so you can reach the command chair from EVA on the launch pad. This particular ladder isn't even on the rover itself (the one I originally discovered the glitch with on Minmus) so that can't be related.

The 3 Ladder1's are the possibly suspect but I find it unlikely.....

My own personal hypothesis based on nothing but speculation is that the winch mod from KAS (the grappling hook shooter) is somehow coded around the same concepts as ladders? The winch itself only extends 50m and the ladder is infinite.... So I'm really not sure. Thats the best idea I could come up with, and also why I decided to ask here. =)

Thanks for looking into it though. I really just want to find out how to replicate this onto another craft so that I can make a more function-specific space ladder craft. I'll be able to take a closer look at it myself over the weekend and I will be sure to update the OP with any details I can figure out.

[Dooz]

Now Lets make a Single stage to eve orbit NO Fuel used!MWUHAHHAHAHAHAHHAHAHAHAHAH

Edited August 25, 2013 by Dooz

[tstehler1]

You would fall straight down, you need to move at 1800 m/s to stay in orbit.

Yes, I know that. I've been playing since 0.13. I'm just saying it would be funny... and, as someone already mentioned... Extreme BASEJUMPING!!!

[Shadowdragon665]

Yeah that happened to me and my Kerbal mysteriously jumped by itself around 3,000 m you can see a picture here

[Jarin]

Looks like the video is set to private?

[fourfa]

necro