This physics engine works with penetration detection of any object. If a penetration (intersection) is detected the simulation will run backwards and forwards in frame-time, untill a accurate collision time is found. After that, the last detected collision is resolved.

More features:
ConvexPolygons as Springmodels
Time-exact simulation resolve
Space-Subvision by grids

source

Hi. I’m interested in this experiment.

How do you calculate collisions?

Thank you and great job!

I’ve updated the description and leave the source-url.

Very thanks. It’s simply amazing!

Wow! Its very good! It is hard to find out a good example of this kind of things, thank you very much!

Great stuff.

I was working on something very similar to this at Photobox - so I’m going to have a look at what you are doing and see if we were going down the same path. This works great - nice demo. it’s smooth even on my aging Powerbook G4.

Hi everybody,

I think this is a very good approach. I played around with the code and found a very little bug in the frame (frame.as) where in the constructor the line for the aabb setting should be:

aabb = new AABB(x,x+width,y,y+height);

Then collision works fine with frames too.

Thanks again André for your great work!

Jürgen

Hello there. I am big fan of your works. I am playing(programming) with alike thigns my self alot. You can check some works on my DA page.
Can you advice some articles about space-subdivision?

Error: Simulation.getNearestCollision unsolvable.
[object CollisionConvexPolyEach]

I broke it.

I managed to drag the straight like outside the boundaries :) no luck with the other shapes.

This is Sooooooooooooooooooooooooooooooo
Cool

Sometimes it seems like all the best flash work on the web has your name on it, André. You’re unbelievable.

the law of conservation of momentum: in an isolated system the total momentum of the objects before the collision is equal to the total momentum of the objects after the collision. There’s a formula for it too.

But, this is a great example

Hey, cool. I’d like peek into your source.Thx!

So nice, great work!!
keep up (y)

Sweeeeeeet!

this = awesome
cant wait to see come code!

i like all your experiments and your my big idol, thank you for your fantastic ideas

im baffeld that this is flash

omw.. this is insane. you are just soooo good. Im a flash noob sorta but you just made me feel like an insect compared to your level of work. keep it up

Any plans to open source it?

This source file isn’t unzipping for me. I’m on a mac.

Yeah, looks like a pc/mac issue. I tried the ZIP on a PC and it worked.