Todd Vanderlin » box2d

Teeth Shattering

Todd Vanderlin — Tue, 30 Mar 2010 01:39:25 +0000

Bite in front of the camera and your teeth will shatter.

Green Balls

Todd Vanderlin — Wed, 24 Mar 2010 01:08:44 +0000

little experiment from last week.

Delaunay Contour

Todd Vanderlin — Sat, 18 Apr 2009 14:53:52 +0000

I wanted to create a shape within the contour so I used delaunay triangulation. This returned all the triangles that build up the convex hull of the points. This was great but I only wanted the triangles inside the contour. Theo gave me a really great inside polygon test which solved this. I made sure that the center of each triangle was inside the contour. I think this will work if I create static shapes that build up the contour. Zach also had a great idea to check to see if the shape is inside the polygon. I could built a contact listener that checks to see if its inside and if so remove.

Contour

Todd Vanderlin — Sat, 18 Apr 2009 04:29:25 +0000

I used box2d to create a shape out of the contour of the body. There are still some some bugs that I’m trying to work out. Initially the shapes were only colliding with the interior of the contour but simple reversing the points solved that. Some shapes are still being push through but I think I have some ideas to solve this, maybe create fixed shapes inside the contour. Despite the somewhat slow playback of the video due to snapzpro the speed is great. More to come.

Mounds

Todd Vanderlin — Wed, 15 Apr 2009 00:46:40 +0000

These are mounds. They wiggle and wobble and don’t like to have things on top of them.

More Creatures

Todd Vanderlin — Sun, 05 Apr 2009 00:43:34 +0000

I’m starting to like the creatures a bit more. I have figure out a way to keep the bodies separated and have them still collide with one another. When they are smaller, some still get a bit tangled. I have been building creature in both Chipmunk and Box2d for comparison. I’m not sure which one I’m going to stick with, I need to do a bit more research.

Scary Vines

Todd Vanderlin — Sat, 04 Apr 2009 02:23:27 +0000

Working on some plant creatures. The vines are built using box2d and springs. They are really flexible but seem to collapse upon eachother, it turns into a mess. I would like to built up the structure of the vines with box2d segments but I can’t figure out a way to build simple lines that change dimensions, go figure. I know that chipmunk can do this but want to figure out a way to do this with box2d.

iPhone Soft bodies

Todd Vanderlin — Mon, 30 Mar 2009 01:01:33 +0000

Now we have soft bodies on the iPhone.

Soft Bodies

Todd Vanderlin — Sun, 29 Mar 2009 18:22:37 +0000

Working on some soft bodies using box2d. They are working well, but sometimes will break when joints cross over. I might be able to add some more cross joints to help keep the shape. They are super fun check out the video.