Comments on: Two ways to make Box2D cars http://www.emanueleferonato.com/2009/04/06/two-ways-to-make-box2d-cars/ italian geek and PROgrammer Thu, 09 Sep 2010 01:38:23 +0000 hourly 1 http://wordpress.org/?v=abc By: Mike http://www.emanueleferonato.com/2009/04/06/two-ways-to-make-box2d-cars/#comment-627661 Mike Wed, 25 Aug 2010 03:32:25 +0000 http://www.emanueleferonato.com/?p=1110#comment-627661 Does any body know what my errors are? (read comment above) I'm in Flash CS5 running Box2d 2.0.2 Does any body know what my errors are? (read comment above) I’m in Flash CS5 running Box2d 2.0.2

]]> By: Mike http://www.emanueleferonato.com/2009/04/06/two-ways-to-make-box2d-cars/#comment-627329 Mike Tue, 24 Aug 2010 05:33:11 +0000 http://www.emanueleferonato.com/?p=1110#comment-627329 I'm getting the same issues as eanjo. 1046: Type was not found or was not a compile-time constant: Input. 1180: Call to a possibly undefined method Input. 1120: Access of undefined property FRateLimiter. Any body know how to fix this. Thanks! I’m getting the same issues as eanjo.

1046: Type was not found or was not a compile-time constant: Input.
1180: Call to a possibly undefined method Input.
1120: Access of undefined property FRateLimiter.

Any body know how to fix this. Thanks!

]]> By: Indy http://www.emanueleferonato.com/2009/04/06/two-ways-to-make-box2d-cars/#comment-623735 Indy Mon, 16 Aug 2010 23:47:15 +0000 http://www.emanueleferonato.com/?p=1110#comment-623735 Hi, Looking at the side car with 2 wheels, I dont see anything in the code which makes the axles appear as they do. i.e. they appear to be 2 shapes per axel, with one cylinder moving inside another cylinder? All I can see in the code is one rectangle formed as an oriented box - per axle. Any ideas? Regards i Hi,

Looking at the side car with 2 wheels, I dont see anything in the code which makes the axles appear as they do. i.e. they appear to be 2 shapes per axel, with one cylinder moving inside another cylinder? All I can see in the code is one rectangle formed as an oriented box – per axle.

Any ideas?

Regards

i

]]> By: Indy http://www.emanueleferonato.com/2009/04/06/two-ways-to-make-box2d-cars/#comment-596138 Indy Mon, 28 Jun 2010 22:24:56 +0000 http://www.emanueleferonato.com/?p=1110#comment-596138 Hi, Great tutorial. Any advice on how you would handle allowing the car to skid a little on different frictional surfaces? Regards i Hi,

Great tutorial. Any advice on how you would handle allowing the car to skid a little on different frictional surfaces?

Regards

i

]]> By: Rodrigo http://www.emanueleferonato.com/2009/04/06/two-ways-to-make-box2d-cars/#comment-579334 Rodrigo Mon, 17 May 2010 01:53:54 +0000 http://www.emanueleferonato.com/?p=1110#comment-579334 I don't think I'm doing this right. I took the topdown simulation and created a new project on FlashDevelop. It worked like a charm, except for one thing: The car dances all over the place. I mean, really.. I steer left and accelerate, and it goes like right and starts spinning arround the main body's mass center. I think the problem is in killOrthogonalVelocity. Any ideas? I don’t think I’m doing this right. I took the topdown simulation and created a new project on FlashDevelop. It worked like a charm, except for one thing: The car dances all over the place. I mean, really.. I steer left and accelerate, and it goes like right and starts spinning arround the main body’s mass center.

I think the problem is in killOrthogonalVelocity. Any ideas?

]]> By: Physics Test http://www.emanueleferonato.com/2009/04/06/two-ways-to-make-box2d-cars/#comment-571772 Physics Test Sun, 25 Apr 2010 00:37:43 +0000 http://www.emanueleferonato.com/?p=1110#comment-571772 [...] The engine comes with the ability to use a a flash physics engine called Box2D, which can do some really cool shit. I made it my mission to learn how to do [...] [...] The engine comes with the ability to use a a flash physics engine called Box2D, which can do some really cool shit. I made it my mission to learn how to do [...]

]]> By: drobs http://www.emanueleferonato.com/2009/04/06/two-ways-to-make-box2d-cars/#comment-564743 drobs Tue, 06 Apr 2010 13:57:49 +0000 http://www.emanueleferonato.com/?p=1110#comment-564743 very nice tutorial, has helped alot, but I also have the same problem as eanjo. have been looking around the web for a few days now and just can't find it .. so if someone could help me out, it would be greatly appreciated. drobs very nice tutorial, has helped alot, but I also have the same problem as eanjo.
have been looking around the web for a few days now and just can’t find it ..

so if someone could help me out, it would be greatly appreciated.

drobs

]]> By: Rodrigo http://www.emanueleferonato.com/2009/04/06/two-ways-to-make-box2d-cars/#comment-564579 Rodrigo Mon, 05 Apr 2010 23:08:43 +0000 http://www.emanueleferonato.com/?p=1110#comment-564579 Hey Emanuele. I'm hacing trouble understanding this code: spring1.SetMaxMotorForce(30+Math.abs(800*Math.pow(spring1.GetJointTranslation(), 2))); spring1.SetMotorSpeed((spring1.GetMotorSpeed() - 10 * spring1.GetJointTranslation()) * (5)/Constantes.RATIO); spring2.SetMaxMotorForce(30+Math.abs(800*Math.pow(spring2.GetJointTranslation(), 2))); spring2.SetMotorSpeed( -4 * Math.pow(spring2.GetJointTranslation(), 1)); I changed the density of my car and the torque applied to the wheels... and they started dancing all over the place when going to fast. Any ideas? Rod Hey Emanuele. I’m hacing trouble understanding this code:
spring1.SetMaxMotorForce(30+Math.abs(800*Math.pow(spring1.GetJointTranslation(), 2)));
spring1.SetMotorSpeed((spring1.GetMotorSpeed() – 10 * spring1.GetJointTranslation()) * (5)/Constantes.RATIO);
spring2.SetMaxMotorForce(30+Math.abs(800*Math.pow(spring2.GetJointTranslation(), 2)));
spring2.SetMotorSpeed( -4 * Math.pow(spring2.GetJointTranslation(), 1));

I changed the density of my car and the torque applied to the wheels… and they started dancing all over the place when going to fast. Any ideas?

Rod

]]> By: saravanan http://www.emanueleferonato.com/2009/04/06/two-ways-to-make-box2d-cars/#comment-564339 saravanan Mon, 05 Apr 2010 05:01:21 +0000 http://www.emanueleferonato.com/?p=1110#comment-564339 please explain how to use this code pls give zip format help me please explain how to use this code pls give zip format help me

]]> By: saravanan http://www.emanueleferonato.com/2009/04/06/two-ways-to-make-box2d-cars/#comment-564338 saravanan Mon, 05 Apr 2010 04:59:51 +0000 http://www.emanueleferonato.com/?p=1110#comment-564338 Hi guys second tutorial not working how said its awesome Hi guys second tutorial not working how said its awesome

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