<div class="blog">
<h1 id="NAME">
-Once in a while .... (set_event_filter)
+Migrating Sol's Tutorial of SDL to SDL_Perl
</h1>
<div class="CONTENT">
-<div style="text-align: right;"><i> <br />
-Once in a while <br />
-Things just work! <br />
-</i><br />
+<div style="text-align: right;"><i>If I have seen further it is only by standing on the shoulders of giants. --Newton</i><br />
</div><br />
+<div class="separator" style="clear: both; text-align: center;"><a href="http://3.bp.blogspot.com/_NnqjAQEn1Xo/SwBpohYidDI/AAAAAAAAAB4/51y9QJh5osI/s1600-h/solsch2.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://3.bp.blogspot.com/_NnqjAQEn1Xo/SwBpohYidDI/AAAAAAAAAB4/51y9QJh5osI/s320/solsch2.png" /></a><br />
+</div><br />
+<h1><a href="http://sol.gfxile.net/gp/index.html">Sol's Tutorials</a> </h1><br />
+<p>When I was struggling with SDL C a while ago, someone recommended <a href="http://sol.gfxile.net/gp/index.html">Sol's Tutorial</a> to me. It had not only help me understand video in SDL, but I believe my code has improved using Sol's code style. I would like to pass these along to fellow SDL_Perl users too. So here is the <a href="http://github.com/kthakore/SDL_perl/blob/redesign/examples/sols/ch02.pl">Ch 02</a> code of Sol's Tutorial in SDL_Perl. It will be getting more and more Perly as our team hacks on it. There is more to come!<br />
+</p><br />
+<p>To use this code you need the new Redesigned SDL_Perl Library </p><br />
+<h1>Getting SDL Dependencies </h1><br />
+Only If you are on Linux (debian/ubuntu) you need the following dependencies:<br />
+<br />
+<pre>$ sudo apt-get install libsdl-net1.2-dev libsdl-mixer1.2-dev libsmpeg-dev libsdl1.2-dev libsdl-image1.2-dev libsdl-ttf2.0-dev </pre><br />
+On Windows we recommend using <a href="http://strawberryperl.com/">Strawberry Perl</a>. It comes with SDL-1.2.13 header files and libs included.<br />
+<br />
+Both Windows and Linux needs to install Alien::SDL<br />
+<br />
+<pre>$ cpan Alien::SDL</pre>** Add sudo to this for Linux<br />
+<br />
+<h1>Getting Bleeding SDL </h1><br />
+The bleeding SDL is on github. Click download on this <a href="http://github.com/kthakore/SDL_perl/tree/redesign"> site </a>.<br />
+<br />
+Extract it and cd into the folder run <br />
+<pre>$ cpan . </pre>** The dot is needed <br />
+** in Linux you may need to do sudo<br />
<br />
-So I have been hacking for a while on SDL::Events::set_event_filter. The code below is an example usage. The magic behind this is <a href="http://github.com/kthakore/SDL_perl/blob/1712fe42d62c2a3e382e6bf91366eb2ce9d2f5f4/src/Core/Events.xs">here</a> <br />
+Then you can run this script by doing<br />
<br />
-<pre><a href="" name="line1"> 1</a> <span style="color: #444444;">#!/usr/bin/perl -w
-<a href="" name="line2"> 2</a> </span><b>use</b> strict;
-<a href="" name="line3"> 3</a> <b>use</b> warnings;
-<a href="" name="line4"> 4</a> <b>use</b> SDL v2.3; <span style="color: #444444;">#Require the redesign branch
-<a href="" name="line5"> 5</a> </span><b>use</b> SDL::Video;
-<a href="" name="line6"> 6</a> <b>use</b> SDL::Event;
-<a href="" name="line7"> 7</a> <b>use</b> SDL::Events;
-<a href="" name="line8"> 8</a>
-<a href="" name="line9"> 9</a> SDL::init<span style="color: #4444ff;"><b>(</b></span>SDL_INIT_VIDEO<span style="color: #4444ff;"><b>)</b></span>;
-<a href="" name="line10">10</a> <b>my</b> <span style="color: #2040a0;">$display</span> = SDL::Video::set_video_mode<span style="color: #4444ff;"><b>(</b></span>640,480,32, SDL_SWSURFACE <span style="color: #4444ff;"><b>)</b></span>;
-<a href="" name="line11">11</a> <b>my</b> <span style="color: #2040a0;">$event</span> = SDL::Event-><b>new</b><span style="color: #4444ff;"><b>(</b></span><span style="color: #4444ff;"><b>)</b></span>;
-<a href="" name="line12">12</a>
-<a href="" name="line13">13</a> <span style="color: #444444;">#This filters out all ActiveEvents
-<a href="" name="line14">14</a> </span><b>my</b> <span style="color: #2040a0;">$filter</span> = sub <span style="color: #4444ff;"><b>{</b></span>
-<a href="" name="line15">15</a> <b>my</b> <span style="color: #4444ff;"><b>(</b></span><span style="color: #2040a0;">$e</span>, <span style="color: #2040a0;">$type</span><span style="color: #4444ff;"><b>)</b></span> = <span style="color: #4444ff;"><b>(</b></span><span style="color: #2040a0;">$_</span><span style="color: #4444ff;"><b>[</b></span>0<span style="color: #4444ff;"><b>]</b></span>, <span style="color: #2040a0;">$_</span><span style="color: #4444ff;"><b>[</b></span>0<span style="color: #4444ff;"><b>]</b></span>->type<span style="color: #4444ff;"><b>)</b></span>;
-<a href="" name="line16">16</a> <b>if</b><span style="color: #4444ff;"><b>(</b></span><span style="color: #2040a0;">$type</span> == SDL_ACTIVEEVENT<span style="color: #4444ff;"><b>)</b></span><span style="color: #4444ff;"><b>{</b></span> <b>return</b> 0 <span style="color: #4444ff;"><b>}</b></span>
-<a href="" name="line17">17</a> <b>elsif</b><span style="color: #4444ff;"><b>(</b></span><span style="color: #2040a0;">$type</span> == SDL_MOUSEBUTTONDOWN && <span style="color: #2040a0;">$e</span>->button_button == 1<span style="color: #4444ff;"><b>)</b></span><span style="color: #4444ff;"><b>{</b></span> <b>return</b> 0 <span style="color: #4444ff;"><b>}</b></span>
-<a href="" name="line18">18</a> <b>else</b> <span style="color: #4444ff;"><b>{</b></span> <b>return</b> 1; <span style="color: #4444ff;"><b>}</b></span>
-<a href="" name="line19">19</a> <span style="color: #4444ff;"><b>}</b></span>;
-<a href="" name="line20">20</a>
-<a href="" name="line21">21</a> SDL::Events::set_event_filter<span style="color: #4444ff;"><b>(</b></span><span style="color: #2040a0;">$filter</span><span style="color: #4444ff;"><b>)</b></span>;
-<a href="" name="line22">22</a>
-<a href="" name="line23">23</a> <b>while</b><span style="color: #4444ff;"><b>(</b></span>1<span style="color: #4444ff;"><b>)</b></span>
-<a href="" name="line24">24</a> <span style="color: #4444ff;"><b>{</b></span>
-<a href="" name="line25">25</a>
-<a href="" name="line26">26</a> SDL::Events::pump_events<span style="color: #4444ff;"><b>(</b></span><span style="color: #4444ff;"><b>)</b></span>;
-<a href="" name="line27">27</a> <b>if</b><span style="color: #4444ff;"><b>(</b></span>SDL::Events::poll_event<span style="color: #4444ff;"><b>(</b></span><span style="color: #2040a0;">$event</span><span style="color: #4444ff;"><b>)</b></span><span style="color: #4444ff;"><b>)</b></span>
-<a href="" name="line28">28</a> <span style="color: #4444ff;"><b>{</b></span>
-<a href="" name="line29">29</a>
-<a href="" name="line30">30</a> <b>if</b><span style="color: #4444ff;"><b>(</b></span> <span style="color: #2040a0;">$event</span>->type == SDL_ACTIVEEVENT<span style="color: #4444ff;"><b>)</b></span>
-<a href="" name="line31">31</a> <span style="color: #4444ff;"><b>{</b></span>
-<a href="" name="line32">32</a> <span style="color: brown;"><b>print</b></span> <span style="color: green;">"Hello Mouse!!!<span style="color: #77dd77;">\n</span>"</span> <b>if</b> <span style="color: #4444ff;"><b>(</b></span><span style="color: #2040a0;">$event</span>->active_gain && <span style="color: #4444ff;"><b>(</b></span><span style="color: #2040a0;">$event</span>->active_state == SDL_APPMOUSEFOCUS<span style="color: #4444ff;"><b>)</b></span> <span style="color: #4444ff;"><b>)</b></span>;
-<a href="" name="line33">33</a> <span style="color: brown;"><b>print</b></span> <span style="color: green;">"Bye Mouse!!!<span style="color: #77dd77;">\n</span>"</span> <b>if</b> <span style="color: #4444ff;"><b>(</b></span>!<span style="color: #2040a0;">$event</span>->active_gain && <span style="color: #4444ff;"><b>(</b></span><span style="color: #2040a0;">$event</span>->active_state == SDL_APPMOUSEFOCUS<span style="color: #4444ff;"><b>)</b></span> <span style="color: #4444ff;"><b>)</b></span>;
-<a href="" name="line34">34</a> <span style="color: #4444ff;"><b>}</b></span>
-<a href="" name="line35">35</a> <b>if</b><span style="color: #4444ff;"><b>(</b></span> <span style="color: #2040a0;">$event</span>->type == SDL_MOUSEBUTTONDOWN<span style="color: #4444ff;"><b>)</b></span>
-<a href="" name="line36">36</a> <span style="color: #4444ff;"><b>{</b></span>
-<a href="" name="line37">37</a> <b>my</b> <span style="color: #4444ff;"><b>(</b></span><span style="color: #2040a0;">$x</span>, <span style="color: #2040a0;">$y</span>, <span style="color: #2040a0;">$but</span> <span style="color: #4444ff;"><b>)</b></span> = <span style="color: #4444ff;"><b>(</b></span><span style="color: #2040a0;">$event</span>->button_x, <span style="color: #2040a0;">$event</span>->button_y, <span style="color: #2040a0;">$event</span>->button_button<span style="color: #4444ff;"><b>)</b></span>;
-<a href="" name="line38">38</a> <span style="color: brown;"><b>warn</b></span> <span style="color: green;">"<span style="color: #2040a0;">$but</span> CLICK!!! at <span style="color: #2040a0;">$x</span> and <span style="color: #2040a0;">$y</span> <span style="color: #77dd77;">\n</span>"</span>;
-<a href="" name="line39">39</a> <span style="color: #4444ff;"><b>}</b></span>
-<a href="" name="line40">40</a>
-<a href="" name="line41">41</a> <b>last</b> <b>if</b><span style="color: #4444ff;"><b>(</b></span><span style="color: #2040a0;">$event</span>->type == SDL_QUIT<span style="color: #4444ff;"><b>)</b></span>;
-<a href="" name="line42">42</a> <span style="color: #4444ff;"><b>}</b></span>
-<a href="" name="line43">43</a> <span style="color: #4444ff;"><b>}</b></span>
-<a href="" name="line44">44</a> SDL::quit<span style="color: #4444ff;"><b>(</b></span><span style="color: #4444ff;"><b>)</b></span>; </pre><pre> </pre><pre> </pre><pre>Tinker with $filter and look at perldoc lib/SDL/pods/Event.pod. </pre><pre> </pre><pre>Have fun,</pre><pre>--yapgh</pre><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3102167581424744259-2301663122914111362?l=yapgh.blogspot.com' alt='' /></div>
-<p><a href="http://feedads.g.doubleclick.net/~a/e5FjkjzCKI5FggkvV6c3mlOMCG4/0/da"><img src="http://feedads.g.doubleclick.net/~a/e5FjkjzCKI5FggkvV6c3mlOMCG4/0/di" border="0" ismap="true"></img></a><br/>
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+<pre>$ perl examples/sols/ch02.pl </pre><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3102167581424744259-3277380868908060119?l=yapgh.blogspot.com' alt='' /></div>
+<p><a href="http://feedads.g.doubleclick.net/~a/bxmknqf-sayqUSokbyBxn8sn0KU/0/da"><img src="http://feedads.g.doubleclick.net/~a/bxmknqf-sayqUSokbyBxn8sn0KU/0/di" border="0" ismap="true"></img></a><br/>
+<a href="http://feedads.g.doubleclick.net/~a/bxmknqf-sayqUSokbyBxn8sn0KU/1/da"><img src="http://feedads.g.doubleclick.net/~a/bxmknqf-sayqUSokbyBxn8sn0KU/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/YetAnotherPerlGameHackeryapgh/~4/P3w_zMpGuB8" height="1" width="1"/></div></div>
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