Sensor has no collision feedback when mass is zero.

[GoogleCodeExporter]

1. make a sensor with zero mass.
2. make another object with any mass.
3. notice no collision.

Collision when sensor touching another object. When mass of sensor is > 0
there is feedback.

What version of the product are you using? On what operating system?

C++ Box2D 2.0.1, Ubuntu Linux 9.10

Thanks.

Original issue reported on code.google.com by cammyking@gmail.com on 8 Mar 2010 at 2:06