Merge pull request RobotLocomotion#1796 from sherm1/add-Windows-stuff…

…-to-Cars-instructions

Add some Windows-specific instructions to the Cars example

drake/examples/Cars/README.md

@@ -1,8 +1,8 @@
 How to run the car simulation
 =============================
 
-Additional prerequisites
-------------------------
+Additional prerequisite
+-----------------------
 
 Install pygame (e.g. with `brew install pygame`, or `apt-get install python-pygame`)
 
@@ -16,10 +16,14 @@ e.g. for me it is
 ```
 export PYTHONPATH="/Users/russt/drake-distro/build/lib/python2.7/dist-packages:/Users/russt/drake-distro/build/lib/python2.7/site-packages:$PYTHONPATH"
 ```
-
+
+You can run the car simulation without pygame; you won't have much fun driving
+it though. In that case you can use publishDrivingCommand (see below) to control it.
+
 
 Running the simulator
 ---------------------
+To adjust these instructions for Windows, see notes at the end of this section.
 
 ```
 cd drake-distro/drake/examples/Cars
@@ -48,3 +52,10 @@ where the values in bracket should be replaced with desired values.  e.g.
 ../../pod-build/bin/publishDrivingCommand 1.0 .4
 ```
 Every time that you run this command, it sends one LCM message.
+
+*Adjustments for Windows*
+- Insert the configuration directory (e.g. `Release/`) after `bin/` in paths 
+below to find executables. 
+- When running from the Windows Command Prompt you'll need to use backslashes in
+place of forward slashes.
+- To run a command in the background use `start cmdline` in place of `cmdline &`.