activity/
activity/activity-bridge.svg - The activity icon
activity/activity.info - Provides simple metadata about the activity to Sugar
activity.py - Contains the class called by Sugar on start up.
bridge.py - Contains the class to load the world, calculate costs, create the train, and play sounds
elements/ - (upstream, but branched here) Simplification wrapper around pyBox2D (in a subdirectory here)
helpers.py - mathematical helper functions
icons/ - all graphics used in Physics (mostly svg menu icons)
locale/ - a work in progress to include more language support with gettext
olpcgames/ - (upstream) The Pygame wrapper for the OLPC Sugar platform
physics.py - Contains screen setup, main loop, tool list
po/ - a work in progress to include more language support with gettext
setup.py - just runs the Sugar bundlebuilder
sounds/ - sound effects directory
sounds/death.wav - Simulation ends and train falls into ravine
sounds/startup.wav - Simulation starts
sounds/wooo.wav - Simulation ends and train successfully passes over the bridge
sugargame/ - (upstream) The sugargame wrapper for the OLPC Sugar platform (to replace olpcgames)
tools.py - defines Tool class and all available tools (contexts for input/creation)