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Re: [Bug-gnubg] Web version of GNU Backgammon

From: Theodore Hwa
Subject: Re: [Bug-gnubg] Web version of GNU Backgammon
Date: Thu, 26 Sep 2019 16:00:33 -0700 (PDT)
User-agent: Alpine 2.21 (LRH 202 2017-01-01)

On Wed, 25 Sep 2019, Guido Flohr wrote:

Back to backgammon: I know that it would be very hard to cleanly separate the 
UI and the engine part of GNU backgammon. Most of the code was written at a 
time, when MVC or MVVM
patterns were still unknown.

But it should be feasible to add preprocessor directives and change the build 
so the so that you can conditionally compile and build a headless version of 
the engine. I know,
there is already a telnet interface to gnubg. Only from my experience with 
another project https://github.com/gflohr/BaldLies I remember that the telnet 
interface is not
exactly nice to use. It probably needs some polishing and formalization in 
order to turn it into a protocol that is easy to use.

Gnubg is already like this, more or less. There are #ifdef USE_GTK (something like that, don't recall the exact name) that delineate the use of GTK. That made porting it to the web relatively easy, since I could compile without that option. Not that much change to the code (besides entirely removing the gtk* source files) was needed to make it work with Javascript. In the web version, what's running in the background is essentially a headless version of the engine.


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