Changes

==Modifying Physics==

==Modifying Physics==

===Changing block properties - density===

===Changing block properties - density===

[http://wiki.laptop.org/go/Physics_(activity) Physics] is based on Box2D v2.0.2 , there is good [http://www.box2d.org/manual.html#d0e1468 documentation]. It is 'wrapped' in a python wrapper called [http://elements.linuxuser.at/ elements] which is then 'Sugarised' to make Physics. It was originally on the [http://wiki.laptop.org/go/Physics_(activity) OLPC wiki] but has now migrated to the [http://wiki.sugarlabs.org/go/Activities/Physics Sugarlabs wiki].

[[Activities/Physics|Physics]] is based on Box2D v2.0.2 , there is good [http://www.box2d.org/manual.html#d0e1468 documentation]. It is 'wrapped' in a python wrapper called [http://elements.linuxuser.at/ elements] which is then 'Sugarised' to make Physics. It was originally on the [http://wiki.laptop.org/go/Physics_(activity) OLPC wiki] but has now migrated to the [[Activities/Physics|Sugarlabs wiki]].

You will find the 'Sugarising' code at <i>/home/olpc/Activities/Physics.activity</i> directory and the Elements code in the <i>elements</i> subdirectory and the Box2D code in a further <i>box2d</i> subdirectory.

You will find the 'Sugarising' code at <i>/home/olpc/Activities/Physics.activity</i> directory and the Elements code in the <i>elements</i> subdirectory and the Box2D code in a further <i>box2d</i> subdirectory.