Flave, a new open source AS3 Verlet physics engine
Do you remember Luis Fernando Silva?
He released a Box2D platform engine some months ago, and now I am publishing his last work, a Verlet physics engine.
If you need more information about Verlet integration, check this post.
This is what Luis says:
« So, I was developing a small physics engine for a game of mine (Flash Physics Engine v2), and the thing started to get bigger and take shape of a real physics engine, or atleast with enough features to run a ragdoll simulation.
I’ve received feedback from some guys at FGL and so I decided it was time to release it as open source! After commenting each line of code as much as I could, after 2 weeks of bug-testing to remove some instability and after an afternoon coding some samples, I have here packed for you guys at the blog the v0.6b version!
As you can guess, it’s a verlet engine so it isn’t as stable as rigid-body engines like Box2D or Motor Engine, and the only real solid there is the particle primitive. Which is a small circle (how exciting!). But since your blog gets so many hits from all kinds of coders, I tought maybe (like with my other samples posted on your blog), some more skilled coder could improve it into something better! »
This is a demo completely developed with the engine:
Use arrow keys to navigate through the 10 samples.
Besides the engine itself, it’s a great example of solid OOP programming, with a lot of comments in the source code.
Download the source code.
(14 votes, average: 4.43 out of 5)
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They can be easily customized to meet the unique requirements of your project.
This post has 29 comments
Luiz Fernando
Thanks for publishing it, Emanuele! :D
It might sound funny, but there’s a 0.6.2b already, fixing some bugs and adding a CS3 support.
Here’s the link:
http://www.mediafire.com/?zywiindbdd2
I’m actually hosting a SourceForge page, later I’ll comment here with a link!
Thanks,
-Luiz
Luiz Fernando
Ohwell! Gosted on SourceForge!: https://sourceforge.net/projects/flave/
For now on, all updates will be uploaded there :]
Fardeen
Cool !
Please put it on google code. I like to be able to use externals with SVN.
Luiz Fernando
Google Code happens to be a pain in the arse. But I’ll give it one more try!
wrobel221
Really great examples and great engine. Have you already optimized the code or it will be done just before version 1.0?
Thanks for sharing it
Luiz Fernando
http://code.google.com/p/flave
GoogleCode page now up!
@wrobel221 I have optimized as much as I code, but there might be better and faster methods to do some of the tasks the engine does. I’ll be looking forward each release to look at this different methods.
Thanks!
mmankt
hm nice work but from the game makers point of view it’s still better to work with box2d. Anyway i admire your effort and i’ll definatly look into your code cuz the circle – line collsiion stuff is a great start for my particle engine.
Luiz Fernando
Yes, it was for learning only. Although I see some potential on the ray-casting engine (altough it’s a little slow right now).
vitaLee
Luiz why don’t you host your project on GitHub?
Pedram
Grate, it’s very easier than box2d but it’s not complete yet,
thanks for publishing,
good luck,
Luiz Fernando
I’ll try to upload to all websites that have an easy updating scheme (SVN, for example)
Guest
Thanks for sharing…. i like the samples but i noticed that the collisions had issues at high speeds
mmankt
yeah , it looks good. i see shadows being drawn by connecting those lines;) with som eoptimisations it should be pretty great :)
Vlad
If you go to the FLAVE part (10/10) and drag the middle vertex from E into the middle of F, it starts having fun on its own ! :D
dVyper
That second ray-casting example is excellent :D
Kaustav
I think its quite good. I am very interested in how you managed collision response for the joints between the balls. Do you use broadphase optimization?
Sharedtut
This is impressive, have you try playing with the Z-Axis to see if a 3d box can be created with this same code?
palani
I appreciate you. thanks for publishing.
leon49 | ForeverYone
[...] engines Flave – verlet physics engine 2D JigLib – 3D physics engine Box2D – 2D physics APE [...]
Flash ????
[...] engines Flave – verlet physics engine 2D JigLib – 3D physics engine Box2D – 2D physics APE [...]
wordpress expert
Just tell you your web blog seems truly strange in Mozilla on a linux.
flash?????? | LuFree???????
[...] Flave – 2D???? JigLib – 3D???? Box2D – 2D???? APE (ActionScript Physics Engine) – 2D???? WOW Engine – 3D???? Particle Engine – ???? [...]
dorkbot
Can anyone recommend a good steering behavior engine? I like the engine explained in AdvancED ActionScript 3.0 Animation, but it doesn’t accommodate limiting rotational movement, so often the Vehicles flip around, or spin.
Thanks!
WILEz
Gran bel lavoro! :)
Pensi possa essere usato per un gioco sullo stile “Sensible Soccer/Dino Dini game?
Cmq, lo sto scaricando.
flashVT » Part II – Prototyping LilBits game
[...] it to Objective C through the Flash exporter. I then did some more digging, I had more success with FLAVE, but it was still a little clunky on the iPhone. Since “LilBits” does not need a ton of [...]
Flash Gaming Engines « vgioniop2007060
[...] Flave – verlet physics engine 2D JigLib – 3D physics engine Box2D – 2D physics APE (ActionScript Physics Engine) – 2D physics WOW Engine – 3D physics [...]
oh...well?!
Are The Particles able to cross constraint with high speed?
if yes, it would be easy to avoid it by finding the cross point between the constraint and the line between the position of the particle last frame and the actual frame. The you could set the Particle Radius to Zero or at least 1. Then the Rigid body would be more like rigid bodies…
I wrote two very similar Physik-Engine in PureBasic. You can see them on my website (http://motomoto.cms4people.de/) but it’s german.
sorry for my poor english
flash????? | Amyflash
[...] Flave – 2D???? JigLib – 3D???? Box2D – 2D???? APE (ActionScript Physics Engine) – 2D???? WOW Engine – 3D???? Particle Engine – ???? [...]
JimmyBitmapLester
Finally a AS3 physics engine that works first try in Flash. Way easier to use than ape or box2d. Be sure it will be in my next projects.
Thanks again!
<3 Jimmy Bitmap Lester