b2Contact -> IsTouching()=true for two non touching bodies.

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Body stood over the ground.
2. I apply LinearImpulse to make him jump, then world->step.
3. After this world->step I get a contact with IsTouching=true. Then render 
with DebugDraw and I see the body separated from the ground.

What is the expected output? What do you see instead?
I expect IsTouching = false.

What version of the product are you using? On what operating system?
2.2.1. Windows 7 Professional. Service Pack 1. 64bit.

Please provide any additional information below.

- Attached the file log with dump info just after impulse and world->step 
- Attached also what i see in the screen. (This is the render of world state 
when I get contact-> IsTouching=true).

Original issue reported on code.google.com by bikiniwe...@gmail.com on 10 Mar 2012 at 12:56

Attachments:

• b2LogFile_istouching_issue.txt
• after_impulse.jpg

[GoogleCodeExporter]

In this case IsTouching applies to the beginning of the time step. Box2D 
performs collision first then simulation. So at the end of the time step the 
collision result may be invalid. If you must have the current contact situation 
you can call b2Contact::Evaluate.

Original comment by erinca...@gmail.com on 17 Mar 2012 at 5:06

[GoogleCodeExporter]

Original comment by erinca...@gmail.com on 17 Mar 2012 at 5:06

• Changed state: WontFix