Algodoo

also axles are broken

That box is not hovering. It is hanging on the end of a spring. The other end of the spring is glued to an axle which is glued to the background. Why do you believe that it's "hovering on its own"?

xray I mean the circle

Oh, that's confusing. On the box you wrote: "this object isn't glued to the background. it's hovering on its own" Anyone reading that would think you were referring to the box!

Okay, the circle. Actually, you put TWO circles there.... a smaller one and a larger one. The two circles are held together with an axle. In the larger circle you put the following script in "onCollide": {attraction = 1}. So, the reason why things are acting strangely is because YOU made it that way! This is not a glitch and it's nothing unusual. just a little challenging to figure out. The two circles are being held together with the axle, and that causes them to continuously collide with each other. The script {attraction = 1} forces the larger circle to have an attraction greater than zero, and so things that have the same collision layer as the circle will be attracted to it, which happens to be the smaller circle in this case. When I deleted just the axle, both circles also disappeared because there was no longer anything forcing them together. Because they were crammed together by the axle, as soon as it got deleted, the two circles flew apart at light speed and they also disappeared into the twilight zone!

So, in simple terms, YOU made this situation happen, probably by accident, but I must admit that it was rather challenging for me to try to figure out what was going on. It really made me think and use my diagnostic brain cells!

This is what I see:
1. Two circles connected by an axle.
2. One circle has an attraction of 1.0.
3. Neither circle is glued to the background.
4. Circles don't move when pulled by drag tool.
5. Drag tool indicates 0 N.
6. onCollide := (e)=>{attraction = 1} doesn't matter.
7. Circles don't move when a block is dropped on them.

I believe this to be a glitch, since I can't figure out what is causing the staticity. I rated it highly since gems like these are hard to find. It could be something simple that I am missing, in which case I will remove my rating.

Statement: The two circles are being held together with the axle, and that causes them to continuously collide with each other.
Response: Circles connected with an axle don't collide with each other.

P.S. I have now found some indication as to what is happening and it definitely points to a glitch.

s_noonan: I have now found some indication as to what is happening and it definitely points to a glitch.

Me: Yes! You are correct, and while reading your comments I recall that someone reported something similar to this weird behavior some time ago (maybe a few months or longer). I'll dig through my records to see if I can find it.

Looking into the console, Algodoo seems to be talking about DirectSolver solutions not being finite -- this further points to a glitch.


This is actually really interesting to me -- in my experience when DirectSolver fails, anything that touches the glitched object becomes glitched itself -- but I can interact with the circles and nothing happens. It really is like they're just glued to the background!

Here is another strange behavior that I reported a long time ago but because it doesn't cause any problems in scenes, it wasn't fixed:

This pertains to numerous objects (same types or different) that are glued to the background...

1. Modifying the "vel" of any glued object changes the vel of all other objects that are glued to the background.

2. When any glued object gets moved, either manually with a tool, or via collision from another object, vel of all glued objects goes to zero.

3. When a new object gets glued to the background the vel of all other glued objects goes to zero.

4. When any glued object gets deleted, the vel of all glued objects goes to zero.

Of course the "vel" of objects that are glued to the background is irrelevant. Therefore it's not an issue to worry about.