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Closed 9 years ago.
Is Scala a good choice to implement a well scalable MMORPG? I read about people suggesting Erlang, because better concurrency handling. But Scala has actors/message driven concurrency and functional programming. Should not that handle the concurrency and scaling also well?
Sorry I don't know Erlang and also don't have experience with Scala neither MMORPG development. That's why I can't make the question more concrete yet. I'm looking for the best way to go to develop an easily scalable MMORPG. And think Scala maybe is/could be a good choice.
Scala is fine for a MMORPG, but it doesn't necessarily have existing frameworks that are available for other platforms (especially C++). Erlang's fault-tolerance and scalability are legendary, but if you use the Akka framework you'll have a comparable set of capabilities (for the most part).
One advantage to using Scala is that you can take advantage of Project Darkstar, a Java-based platform for MMORPG creation. Here's an example of it being used, though I'm not sure it's actively maintained any more.
Scala actors (consider akka) are actually influenced by erlang. This is highly subjective, but I believe actor model is a great fit for mmorpg.
I guess the overall architecture would involve actor per character/NPC - Akka is perfectly capable of handling millions of actors in a cluster. Oh, did I mention Akka 2.0 can be easily distributed?
Related
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Closed 9 years ago.
Which are mature, maintained and flexible open source genetic algorithm (GA) libraries for Scala?
Mature meaning that it is quite feature complete and bug free, ideally well documented.
Maintained meaning that it is not an abandoned project, and it works fine with current the current (2.10) Scala version.
Flexible meaning that it is fully configurable, I can plug in my own chromosome representations, fitness, breeding etc. functions, and it is generic and uses well Scala's type system.
Ideally on GitHub so it integrates best with my work flow.
If your main priority is maturity, I'd recommend JGAP, a library written in Java (which I used in my bachelor's with very successful results).
Using the natural interoperability between Java and Scala, there shouldn't be any problems about that. (But sure it would be great to see a Scala equivalent to it in terms of maturity and flexibility, taking advantage of Scala idioms)
About being maintained, it has not released new versions since 2009.
Sure there are other implementations out there but just wanted to add my 2ยข about a library I would sure revisit when the need comes (even if it is to start a port).
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Closed 10 years ago.
I am trying to understand the differences between Akka and Gridgain. Please explain when one is more suitable than the other and for what problems?
http://akka.io/
http://www.gridgain.com/
Akka implements the Actor Framework in Scala/Java.
The main use case of using Akka is when you need a massively concurrent application.
Think telecom applications where you need to route messages. In fact Akka finds its inspiration from Ericsson's Erlang.
Here are some more use cases from the Akka site : http://doc.akka.io/docs/akka/current/intro/use-cases.html
GridGain appears to be a data processing framework using Map Reduce concepts internally.
Think Big Data here. To process insanely large data sets you need better processing frameworks.
Disclaimer : I haven't used GridGain.
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Closed 11 years ago.
I'm writing a webapp that uses websockets for updating vehicle positions on a google map and for exchanging messages with drivers in realtime. I've been playing around with Node.js as well as Tornado, but I've come to the conclusion that I'd prefer static typing for this project after all.
Two excellent choices seem to be Scala and Go, but I'm having a hard time deciding between those two. I've been mostly been programming in C/C++/C#/Python and have very little Java experience.
So how do those two compare? What would you learn next? I know this is subjective, but I'm kind of looking for some battle stories here. Also, what about the ecosystem? From what I can tell, Scala inherits Java's ecosystem, but what about Go?
The down side of Go - immature, with very little real world experience.
The down side of Scala - you must be familiar with the Java eco system in order to utilize scala well. You probably can't write everything in Scala. Also, some might find the learning curve for Scala higher.
Both supports websockets (Scala through Lift for instance, and Go in the standard library).
I believe that you'll be more comfortable with Go, since it's more similar to Python than Scala.
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Closed 10 years ago.
I'd like to start programming in Scheme but the variety of different implementations is confusing. What are some advantages or disadvantages of various implementations?
Every implementation tends to focus on something different. Racket emphasizes its large libraries as "batteries included", while Ikarus Scheme touts itself as compiling fast code. You should examine implementations based on what you want. If you're just learning Scheme, DrRacket is a good choice with its friendly interface and specific environments for various Scheme books.
Also, you probably don't need to find a R6RS implementation, when most implementations target R5RS and most textbooks were written for R5RS and earlier.
Since you're looking to learn Scheme, I recommend The Little Schemer as an introduction to thinking using Scheme's lists and recursion.
Honestly, while each one has their own quirks and modifications to the standard, they're mostly the same. The biggest differences is how it compiles. You should probably just pick one and go with it.
Racket would be a good choice because it comes with a nice debugging IDE and is easy to set up.
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Closed 9 years ago.
I am evaluating web frameworks. The criteria is lightweight, secure, easy to learn and deploy. There're plenty, but I come up with the following short list,
web2py - the python version of "ruby on rails"
wt. - desktop version of web application
CGI/Perl - the old buddy
Have you worked with any of the above web frameworks and what's your experience? If not, which one do you recommend instead?
Thanks,
This is a flame war in the making.
why did you rule out django and RoR, they have a lot more developer support.
Evaluation of a framework is subjective. A framework is only as good as how good you are with a language, and best practices of a language. What works for one programmer or team, may not work for another, if the team is full of people new to the language.
Please rephrase your question, or rather think about if you really need a framework in the first place.
I find RoR feels very light and is easy to learn. I've also developed in several Java-based frameworks - though all feel heavier than RoR but certainly are rich in features.
Don't know how to comment on answers. To answer Klochner, both seems quite popular but Ruby is not a language that I am familiar with and Django seems more heavy and complex to me than web2py.