October 2020 - Pharo-users - lists.pharo.org

Re: exercism bowling challenge

by Russ Whaley

Yes, my thoughts - since I'm not as technical as the rest of you: BowlingGame class "runs the game a calls each frame to 'process'" - frames (1-10 aFrame objects) - score (aScore object) - currentFrame Frame class "frame handles #throws, pins remaining, and lets Game know when to advance to next frame - frameEnd" - frame# - throws (1-3 aThrow objects - aFrame controls 10th frame 3rd throw) - score (numeric) Throw class - frame (the frame I belong to) - throw# (incremental numeric 1-3) - pinsKnockedDown (0-10) Score class - frames (same as BowlingGame class) - methods to calculate score, once a frame score has been determined, it is stored on the frame and the score calc simply picks that up and moves forward on each successive score calc (after each throw - called from inside of aFrame) This will be a fun little diversion. I'll create a simple UI and engine that will randomly return a number of pinsKnockedDown when pressing the spacebar to roll the next ball. On Fri, Sep 25, 2020 at 3:11 PM DavidBajger <bajger(a)gmail.com> wrote: > Thanks for your reply! Anyway.. wow, 3 lines of code, I'd like to see > that! I > didn't really get into FLP (except some small howeworks on University and > that's alraeady forgotten), so I don't know, what is the advantage here. I > thought that Pharo (Smalltalk) can be considered as functional language > too, > because of blocks. If there wouldn't be any exception handling, would Pharo > code be so compact as well (e.g. by using #inject:into:)? > > > > > > ----- > David Bajger > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > -- Russ Whaley whaley.russ(a)gmail.com

Oct. 1, 2020

Energy efficiency of Pharo/Smalltalk

by Jonathan van Alteren

Hi all, I am interested in energy efficiency metrics for Pharo (version >=8). Just now, I came across this research and related GitHub project: â¢ https://sites.google.com/view/energy-efficiency-languages â¢ https://github.com/greensoftwarelab/Energy-Languages Unfortunately, the paper mentions that Smalltalk was excluded from the results because the (VW) compiler was proprietary :-S However, the GitHub repository does contain Smalltalk code and results, but I haven't been able to evaluate those. [1] Does anyone here have more information on this topic? The benchmarks seem to be low-level algorithms. Although that is useful, I think that a better argument for Pharo/Smalltalk efficiency is that a good OO design (e.g. created using responsibility-driven design with behaviorally complete objects) will be a better fit, can be much simpler and will thus be more efficient during development, as well as easier to maintain and evolve. [2] Has anyone done any research in this area that can quantify this aspect? Kind regards, Jonathan van Alteren Founding Member | Object Guild B.V. Sustainable Software for Purpose-Driven Organizations jvalteren(a)objectguild.com

Oct. 1, 2020

Re: Space Based Repetition

by Sean P. DeNigris

Tim Mackinnon wrote > I donât quite know how you choose or specify the probabilitiesâ¦ Iâm > enquiring. Please report back on your findings! Tim Mackinnon wrote > SM-2 always intrigued meâ¦ but was trying to avoid the inevitable rabbit > hole Yes, same. Although I'm sure I will eventually get pulled in lol. The beautiful thing about flashcards in a dynamic system like Smalltalk is that one could define an API so that *any* domain object could be turned into a flashcard, like the birthdays of your contacts (silly example but you get the idea). I did extensive reading on the SM-2 creator's website and played with Anki a bit. It's been on my endless TODOs to do something simple like Anki in Pharo... ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Oct. 1, 2020