Algodoo hates this shape (logfile included)

[ShnitzelKiller]

http://www.box.net/shared/d950ud6988

Launch the .phz file, use the shape inside as a chain, and try making a chain. It will crash instantly.


Try copying this shape yourself if you don't want to download the file.

I've been able to replicate the bug with some slight variations to the shape; I changed the length of the base protrusions a little and it still crashed. But it seems Algodoo just hates this particular trapezoid with a base.

Reply if you can confirm. In case you can't reproduce this, here's the part of the logfile for a session ending in such a crash:

Code: Select all

---------------------------------------
  Algodoo v1.7.0, MacOSX
  March 24 2010, 19:24:56
---------------------------------------
19:24:56: argv[0] == "/Applications/Algodoo.app/Contents/MacOS/Algodoo"
19:24:56: Looking for stored registration info...
19:24:56: Loading language English...
19:24:56: Parsing /Users/james/Library/Application Support/Algodoo/autoexec.cfg...
19:24:56: Parsing /Users/james/Library/Application Support/Algodoo/config.cfg...
19:24:56: Creating window...
19:24:57: 99 resources loaded
19:24:57: Window created.
19:24:57: Initializing thread-pool...
19:24:57: Prefetching resources...
19:24:57: Creating GUI...
19:24:57: AppGUI::LoadScene "_ONEXITSAVE.phz", automatic = true
19:24:57: Loading /Users/james/Library/Application Support/Algodoo/scenes/_ONEXITSAVE.phz...
19:24:57: Loaded scene /Users/james/Library/Application Support/Algodoo/scenes/_ONEXITSAVE.phz
19:24:57: Running program...
19:25:06: -- Warning: Exception thrown: Code assertion failed: "linkGeoms[0] && linkGeoms[1]" in function app::HingeEntityPtr app::ChainTemplate::AddLink(app::HingeEntityPtr, math::Vec2, math::Vec2) in "/Users/nils/Work/phun/trunk/xcode/../Source/app/tools/ChainTool.cpp":165 from /Users/nils/Work/phun/trunk/xcode/../Source/util/Assert.cpp:25: void AssertionFailed(const char*, bool, bool, const char*, const char*, long int)
19:25:06: !! ERROR: Exception caught in InputDelegator::FireEvent
19:25:06: -- Warning: Caught exception: Code assertion failed: "linkGeoms[0] && linkGeoms[1]" in function app::HingeEntityPtr app::ChainTemplate::AddLink(app::HingeEntityPtr, math::Vec2, math::Vec2) in "/Users/nils/Work/phun/trunk/xcode/../Source/app/tools/ChainTool.cpp":165, /Users/nils/Work/phun/trunk/xcode/../Source/core/Main.cpp:492: int SDL_main(int, char**)
19:25:06: !! ERROR: Exception caught in main: Code assertion failed: "linkGeoms[0] && linkGeoms[1]" in function app::HingeEntityPtr app::ChainTemplate::AddLink(app::HingeEntityPtr, math::Vec2, math::Vec2) in "/Users/nils/Work/phun/trunk/xcode/../Source/app/tools/ChainTool.cpp":165


[Chronos]

You know, I'm pretty sure I used a shape like that before with no problems... I'll try this one later, though.

[daniels220]

Replicated after drawing the shape myself, but only with the chain tool's "Link Distance" set to exactly 1m. The default of 0.2m doesn't cause a crash, .9 doesn't, 1.1 doesn't, 5 doesn't, but 1 does.

EDIT: Whoops, it's not the shape at all, but the distance-of-1m. I tried making a CGear-chain—just like the normal one but with alternate circles colliding with different collision groups. As it happened I made my chain piece exactly 1m wide, and wanted to make a chain the same size. No luck .

But it doesn't happen with all chains.

[ShnitzelKiller]

Replicated after drawing the shape myself, but only with the chain tool's "Link Distance" set to exactly 1m. The default of 0.2m doesn't cause a crash, .9 doesn't, 1.1 doesn't, 5 doesn't, but 1 does.

That's how remote the bug is, and yet it's the first thing that my audience saw when I demonstrated the chain tool's new fixed size feature... what are the chances?

[RA2lover]

Replicated after drawing the shape myself, but only with the chain tool's "Link Distance" set to exactly 1m. The default of 0.2m doesn't cause a crash, .9 doesn't, 1.1 doesn't, 5 doesn't, but 1 does.

That's how remote the bug is, and yet it's the first thing that my audience saw when I demonstrated the chain tool's new fixed size feature... what are the chances?

wouldn't you need permission from algoryx for doing so?

[Dakta]

As long as he's not trying to promote and re-sell licenses without permission, not at all. I think

[ShnitzelKiller]

Replicated after drawing the shape myself, but only with the chain tool's "Link Distance" set to exactly 1m. The default of 0.2m doesn't cause a crash, .9 doesn't, 1.1 doesn't, 5 doesn't, but 1 does.

That's how remote the bug is, and yet it's the first thing that my audience saw when I demonstrated the chain tool's new fixed size feature... what are the chances?

wouldn't you need permission from algoryx for doing so?

How can showing off the features of a program be illegal? I don't understand what you mean.

[Mystery]

It can be illegal, quite easily.

To my knowledge, Algodoo doesn't have anything like this.

[ShnitzelKiller]

It can be illegal, quite easily.

To my knowledge, Algodoo doesn't have anything like this.

What the hell are you talking about? It's even in the changelog: "Added slider for chain size (no longer zoom dependent)." That is what I was demonstrating when this bug, which has since been fixed anyway, occurred.

[Mystery]

I was responding to your question...

How can showing off the features of a program be illegal?

[ShnitzelKiller]

I was responding to your question...

How can showing off the features of a program be illegal?

There must be some kind of misunderstanding going on here.