<div class="blog">
<h1 id="NAME">
-More Games + Update
+The beginnings of modular design for SDL Perl
</h1>
<div class="CONTENT">
-<div style="text-align: right;"><i><br />idle digits,<br />play,<br />away,<br />idle digits.<br /></i></div><br />So while I am hacking away on v2.4 and <a href="http://github.com/kthakore/SDL_perl/tree/experimental">breaking</a> a lot of things. Here is a link to some more <a href="http://home.comcast.net/%7Eg.f.taylor/GarrysGames.html">games</a> for SDL Perl. These only work in windows now but I will look into bringing them to CPAN (with Garry's permission). <br /><br /><i>--yapgh</i><br /><br />These where reported by Garry Taylor. Here is the rest of the email:<br /><br /><blockquote><i>Hi all,</i><br /><i>I hadn't checked this newsgroup in a while and was happy to see </i><br /><i>that it still alive and well. I saw that some people had been sharing </i><br /><i>some SDL Perl games online, and I had a few to share as well. At </i><br /><i>"http://home.comcast.net/~g.f.taylor/GarrysGames.html" you can find four </i><br /><i>games I have written as well as a simple flip book program to let a </i><br /><i>child play at making animation on the computer. The games are "Toad" (a </i><br /><i>Frogger wanna be), "RabbitHat" (like Centipede), "BunnyHunt" (sort of </i><br /><i>like Pac-Man) and "Bonk The Buggies". All (with the exception of Toad </i><br /><i>which in its very first incarnation was a game I wrote in TRS-80 Basic </i><br /><i>back in 1981) were written originally to run on my Windows 3.11 PC for </i><br /><i>my little girl so that she could play games which were not quite so </i><br /><i>violent as games were starting to become at the time.</i><br /><i><br /></i><br /><i>A few years ago I got the idea of trying to get them to run again </i><br /><i>by rewriting them in Perl. The downloads are Windows XP/Vista installs </i><br /><i>which include a bare bones Perl environment for running the games (the </i><br /><i>installs put the code into its own separate place, and shouldn't </i><br /><i>interfere with your existing Perl setups). I did this so that I could </i><br /><i>share the games with friends and family who either don't have SDL </i><br /><i>installed, don't have Perl installed, or don't do any programming and </i><br /><i>just needed something that will run. The code as it currently stands </i><br /><i>was not written for general publication, so there are probably places </i><br /><i>where the Perl code itself is not always the best looking it could be, </i><br /><i>but the games themselves work pretty well. Also, it is worth noting </i><br /><i>that I wound up being lazy and made a few additions to the Perl SDL code </i><br /><i>that I was using to add an additional function or two for printing text </i><br /><i>onto the screen that was centered or right aligned.</i><br /><i><br /></i><br /><i>While I have not made any Unix installs for the code, I have </i><br /><i>actually run the games on a few Linux machines that I have access to, </i><br /><i>where I also had installed SDL. I have not updated my SDL installs in </i><br /><i>several years now, so there may be complications that arise if running </i><br /><i>it with a new version of SDL.</i><br /><i><br /></i><br /><i>I hope you enjoy the games (or at least aren't too mean about it </i><br /><i>if you don't).</i><br /><i>Garry Taylor</i></blockquote><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3102167581424744259-500220938152318100?l=yapgh.blogspot.com' alt='' /></div></div></div>
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+<div style="text-align: right;"><i>“Do or do not... there is no try.”</i><br />
+</div><div style="text-align: right;"><i>--yoda </i><br />
+<br />
+</div><h1>The design before</h1><br />
+The bindings before were all in <a href="http://github.com/kthakore/SDL_perl/blob/master/src/SDL.xs">one huge XS file</a>. This was then exported into the SDL module. This means that the XS file has to handle with macros if any component (e.x SDL_Mixer) is not compiled. Moreover having ever binding in one XS file prevents use to treat C structs as object with only one point of free and malloc. This would be BEGIN and DESTROY in Perl. Also the monolithic design introduces a lot of bugs because we have to use free and malloc all over the place. Lastly SDL monolithic design has the constructor for all structs in both Perl and in XS. <br />
+<br />
+<h1>The design we are aiming for</h1>Simple <a href="http://github.com/kthakore/SDL_perl/blob/master/src/Rect.xs">one XS</a> per Module. This would also simplify the Build code.<br />
+<br />
+<h2>First Step </h2><br />
+We have began with SDL Rect. It is in github master branch now. We are in the progress of making it back compatible. Originally SDL::Rect took named variables as parameters for new(). Now since the constructor <a href="http://github.com/kthakore/SDL_perl/blob/master/src/Rect.xs#L16">is in XS</a> we have only unnamed parameters. <br />
+<br />
+<br />
+<h3>Before</h3><br />
+SDL::Rect->new( -x => 0, -y => 0, -width => 0, -height => 0);<br />
+<br />
+<h3>After</h3><br />
+SDL::Rect->new(0, 0, 0, 0);<br />
+<br />
+Ideally we would like both ways of constructing Rect.<div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3102167581424744259-6151839795039915111?l=yapgh.blogspot.com' alt='' /></div>
+<p><a href="http://feedads.g.doubleclick.net/~a/kLUEuAPtuInPChqB2WfChUn3YyI/0/da"><img src="http://feedads.g.doubleclick.net/~a/kLUEuAPtuInPChqB2WfChUn3YyI/0/di" border="0" ismap="true"></img></a><br/>
+<a href="http://feedads.g.doubleclick.net/~a/kLUEuAPtuInPChqB2WfChUn3YyI/1/da"><img src="http://feedads.g.doubleclick.net/~a/kLUEuAPtuInPChqB2WfChUn3YyI/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/YetAnotherPerlGameHackeryapgh/~4/uEzoBWRJEks" height="1" width="1"/></div></div>
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