Cram Additional Properties Into Subclassed VillageState Objects

[ThomasThelen]

Consider the following class that extends VillageState to include a new variable, aggression.

customState <- R6Class("demographicState",
                          inherit = VillageState,
                          public = list(aggression,
                            initialize = function(aggression=NULL) {
                                          # Let the base class initialize all of the other values
                                          super$initialize()
                                          self$aggression <- aggression
                                                              }
                                        )
                          )

We can create a new state object with

initial_condition <- customState$new()

But. We can't do something like (I'm trying to set the variable in the base class)

initial_condition <- customState$new(carryingCapacity=111)

Most languages have support for passing a variable number of arguments (for example pythons kwargs (actually exactly what I want to do)).

Goal: Use some sort of parameter pack/kwarg feature to pass values into the derived class's initialize method and feed them into the parent class.

https://www.geeksforgeeks.org/packing-and-unpacking-arguments-in-python/

[ThomasThelen]

https://github.com/ropensci/crul/blob/master/R/asyncvaried.R#L147

Might help

[ThomasThelen]

VillageState is passé. The variables referenced above are slowly moving to other classes and are being managed with manager classes so this should no longer be an issue.