3
votes
3answers
226 views

Semi Fixed-timestep ported to javascript

In Gaffer's "Fix Your Timestep!" article, the author explains how to free your physics' loop from the paint one. Here is the final code, written in C: double t = 0.0; const double dt = 0.01; double ...
1
vote
1answer
664 views

AndEngine Physics: Shape rotating but not updating physics effects

I was looking at PhysicsExample from AndEngine's Examples. I made the following change that I added a vertical line shape and created a fixture for it. Then I registered a rotation modifier for that ...
1
vote
1answer
146 views

How to pin a body in case of collision in Box2D or Farseer?

I'm trying to get an understanding for the Box2D/Farseer physics engine by implementing a small air hockey simulation. There, I have the problem that the CPU player attacks the puck, kicks it, but ...
3
votes
1answer
710 views

Cutting a body in box2d

After cocos2d, I'm looking at box2d... And I have some questions: I was wondering how to cut a body into pieces. How do I determine the intersection point of the body with the cut line? Create a ...
1
vote
2answers
977 views

Looking for the reference tutorials for the joints in the Box2D for iphone

I can't find the tutorials of joints class in the Box2D for iPhone. I am unable to run a Testbed for iPhone Box2D. (void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { if ...
10
votes
2answers
3k views

Making a character move along a curved slope in a World with gravity

I have seen this game Fancy Pants 2 . And the thing I noticed apart from the physics and beautiful animations is that the character is moving along slopes , even curved slopes. I have little ...