Carries out what is needed to be done in the last stages of an
iteration, such as:
Removes agents that a to old, adds new agents, calculates density
statistics, calculates number of happy agents, records land use
information, and updates various displays.
Whats done to the agent once new agents have been added etc
I have included a number of parameters to highlight how parameters can be passed through the program
Resizes the agent if its been changed by the user
I have included a number of parameters to highlight how parameters can be passed through the program.