More information about developing code for the simulator

Author: PeterJCLaw

simulator/using_the_simulator.md

@@ -57,7 +57,8 @@ These methods are also available on the physical kits.
 
 ## Developing your code
 
-On first run, the robot will execute an example program for convenience. This program will be copied to the directory `competition-simulator-<version>` is stored in:
+You should develop your code outside the folder which contains the world simulation, in a file called `robot.py`.
+This should be within the parent directory you created when [setting up the world simulation]({{ site.baseurl }}/simulator/setting_up_simulator#world-simulation).
 
 ```
 .
@@ -68,12 +69,17 @@ On first run, the robot will execute an example program for convenience. This pr
 └── robot.py
 ```
 
-Your code should be developed in `robot.py`.
+If you run the simulation without a `robot.py` file in place, the simulation will copy an example there and run it.
 
 <div class="warning">
   Only your controller code will be present in the competition environment.
 </div>
 
+### Making changes
+
+In order for your simulated robot to pick up changes to your code you need to save the files you are working on and then reload the simulation.
+This will also reset the state of the simulated world, allowing your robot to start afresh.
+
 ### Running multiple robots
 
 To test how your robot behaves in each starting zone of the arena, you can copy your robot's code to run in each corner. Code can be placed in a `zone-<zone>` directory to run in starting zone `<zone>`: