Update chickadee manual.

author: David Thompson <dthompson2@worcester.edu> 2023-05-24 08:09:03 -0400
committer: David Thompson <dthompson2@worcester.edu> 2023-05-24 08:09:03 -0400
commit: 03072ef67af0623758a660e2cd3fb5e153133efa (patch)
tree: eea30b2b8fd47aa7d1bd6494ed64b4313f03eb4a /manuals/chickadee/Getting-Started.html
parent: bcccc363a3b814930856be06c52914fb88c2ece6 (diff)
1 files changed, 44 insertions, 44 deletions
diff --git a/manuals/chickadee/Getting-Started.html b/manuals/chickadee/Getting-Started.html
index 7508ebe..e7d695d 100644
--- a/manuals/chickadee/Getting-Started.html
+++ b/manuals/chickadee/Getting-Started.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
-<!-- Copyright (C) 2017-2021  David Thompson davet@gnu.org
+<!--  Copyright (C) 2017-2023  David Thompson dthompson2@worcester.edu
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3
@@ -17,25 +17,25 @@ Foundation Web site at http://www.gnu.org/licenses/fdl.html.
 
 The document was typeset with
 http://www.texinfo.org/ (GNU Texinfo).
- -->
-<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
+  -->
+<!--  Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/  -->
 <head>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <title>Getting Started (The Chickadee Game Toolkit)</title>
 
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-<link href="Command-Line-Interface.html" rel="next" title="Command Line Interface">
-<link href="Requirements.html" rel="prev" title="Requirements">
+<meta name="description" content="Getting Started (The Chickadee Game Toolkit)" />
+<meta name="keywords" content="Getting Started (The Chickadee Game Toolkit)" />
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+<link href="index.html" rel="up" title="Top" />
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 blockquote.indentedblock {margin-right: 0em}
 div.display {margin-left: 3.2em}
@@ -72,9 +72,9 @@ ul.no-bullet {list-style: none}
     }
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+<link rel="stylesheet" type="text/css" href="https://dthompson.us/css/dthompson.css" />
 
 
 </head>
@@ -84,15 +84,15 @@ ul.no-bullet {list-style: none}
 <p>
 Next: <a href="Command-Line-Interface.html" accesskey="n" rel="next">Command Line Interface</a>, Previous: <a href="Installation.html" accesskey="p" rel="prev">Installation</a>, Up: <a href="index.html" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html" title="Index" rel="index">Index</a>]</p>
 </div>
-<hr>
+<hr />
 <span id="Getting-Started-1"></span><h2 class="chapter">2 Getting Started</h2>
 
 <p>One of the simplest programs we can make with Chickadee is rendering
 the text &ldquo;Hello, world&rdquo; on screen.  Here&rsquo;s what that looks like:
 </p>
-<div class="example">
-<pre class="example">(define (draw alpha)
-  (draw-text &quot;Hello, world!&quot; (vec2 64.0 240.0)))
+<div class="lisp">
+<pre class="lisp"><span class="syntax-open">(</span><span class="syntax-special">define</span> <span class="syntax-open">(</span><span class="syntax-symbol">draw</span> <span class="syntax-symbol">alpha</span><span class="syntax-close">)</span>
+  <span class="syntax-open">(</span><span class="syntax-symbol">draw-text</span> <span class="syntax-string">"Hello, world!"</span> <span class="syntax-open">(</span><span class="syntax-symbol">vec2</span> <span class="syntax-symbol">64.0</span> <span class="syntax-symbol">240.0</span><span class="syntax-close">)</span><span class="syntax-close">)</span><span class="syntax-close">)</span>
 </pre></div>
 
 <p>The <code>draw</code> procedure is called frequently to draw the game scene.
@@ -107,14 +107,14 @@ in this tutorial.
 
 <p>This is a good start, but it&rsquo;s boring.  Let&rsquo;s make the text move!
 </p>
-<div class="example">
-<pre class="example">(define position (vec2 0.0 240.0))
+<div class="lisp">
+<pre class="lisp"><span class="syntax-open">(</span><span class="syntax-special">define</span> <span class="syntax-symbol">position</span> <span class="syntax-open">(</span><span class="syntax-symbol">vec2</span> <span class="syntax-symbol">0.0</span> <span class="syntax-symbol">240.0</span><span class="syntax-close">)</span><span class="syntax-close">)</span>
 
-(define (draw alpha)
-  (draw-text &quot;Hello, world!&quot; position))
+<span class="syntax-open">(</span><span class="syntax-special">define</span> <span class="syntax-open">(</span><span class="syntax-symbol">draw</span> <span class="syntax-symbol">alpha</span><span class="syntax-close">)</span>
+  <span class="syntax-open">(</span><span class="syntax-symbol">draw-text</span> <span class="syntax-string">"Hello, world!"</span> <span class="syntax-symbol">position</span><span class="syntax-close">)</span><span class="syntax-close">)</span>
 
-(define (update dt)
-  (set-vec2-x! position (+ (vec2-x position) (* 100.0 dt))))
+<span class="syntax-open">(</span><span class="syntax-special">define</span> <span class="syntax-open">(</span><span class="syntax-symbol">update</span> <span class="syntax-symbol">dt</span><span class="syntax-close">)</span>
+  <span class="syntax-open">(</span><span class="syntax-symbol">set-vec2-x!</span> <span class="syntax-symbol">position</span> <span class="syntax-open">(</span><span class="syntax-symbol">+</span> <span class="syntax-open">(</span><span class="syntax-symbol">vec2-x</span> <span class="syntax-symbol">position</span><span class="syntax-close">)</span> <span class="syntax-open">(</span><span class="syntax-symbol">*</span> <span class="syntax-symbol">100.0</span> <span class="syntax-symbol">dt</span><span class="syntax-close">)</span><span class="syntax-close">)</span><span class="syntax-close">)</span><span class="syntax-close">)</span>
 </pre></div>
 
 <p>The <code>vec2</code> type is used to store 2D coordinates
@@ -131,25 +131,25 @@ the position by 100 pixels per second.
 completely, never to be seen again.  It would be better if the text
 bounced back and forth against the sides of the window.
 </p>
-<div class="example">
-<pre class="example">(define position (vec2 0.0 240.0))
+<div class="lisp">
+<pre class="lisp"><span class="syntax-open">(</span><span class="syntax-special">define</span> <span class="syntax-symbol">position</span> <span class="syntax-open">(</span><span class="syntax-symbol">vec2</span> <span class="syntax-symbol">0.0</span> <span class="syntax-symbol">240.0</span><span class="syntax-close">)</span><span class="syntax-close">)</span>
 
-(define (draw alpha)
-  (draw-text &quot;Hello, world!&quot; position))
+<span class="syntax-open">(</span><span class="syntax-special">define</span> <span class="syntax-open">(</span><span class="syntax-symbol">draw</span> <span class="syntax-symbol">alpha</span><span class="syntax-close">)</span>
+  <span class="syntax-open">(</span><span class="syntax-symbol">draw-text</span> <span class="syntax-string">"Hello, world!"</span> <span class="syntax-symbol">position</span><span class="syntax-close">)</span><span class="syntax-close">)</span>
 
-(define (update dt)
-  (update-agenda dt))
+<span class="syntax-open">(</span><span class="syntax-special">define</span> <span class="syntax-open">(</span><span class="syntax-symbol">update</span> <span class="syntax-symbol">dt</span><span class="syntax-close">)</span>
+  <span class="syntax-open">(</span><span class="syntax-symbol">update-agenda</span> <span class="syntax-symbol">dt</span><span class="syntax-close">)</span><span class="syntax-close">)</span>
 
-(define (update-x x)
-  (set-vec2-x! position x))
+<span class="syntax-open">(</span><span class="syntax-special">define</span> <span class="syntax-open">(</span><span class="syntax-symbol">update-x</span> <span class="syntax-symbol">x</span><span class="syntax-close">)</span>
+  <span class="syntax-open">(</span><span class="syntax-symbol">set-vec2-x!</span> <span class="syntax-symbol">position</span> <span class="syntax-symbol">x</span><span class="syntax-close">)</span><span class="syntax-close">)</span>
 
-(let ((start 0.0)
-      (end 536.0)
-      (duration 4.0))
-  (script
-   (while #t
-    (tween duration start end update-x)
-    (tween duration end start update-x))))
+<span class="syntax-open">(</span><span class="syntax-special">let</span> <span class="syntax-open">(</span><span class="syntax-open">(</span><span class="syntax-symbol">start</span> <span class="syntax-symbol">0.0</span><span class="syntax-close">)</span>
+      <span class="syntax-open">(</span><span class="syntax-symbol">end</span> <span class="syntax-symbol">536.0</span><span class="syntax-close">)</span>
+      <span class="syntax-open">(</span><span class="syntax-symbol">duration</span> <span class="syntax-symbol">4.0</span><span class="syntax-close">)</span><span class="syntax-close">)</span>
+  <span class="syntax-open">(</span><span class="syntax-symbol">script</span>
+   <span class="syntax-open">(</span><span class="syntax-symbol">while</span> <span class="syntax-symbol">#t</span>
+    <span class="syntax-open">(</span><span class="syntax-symbol">tween</span> <span class="syntax-symbol">duration</span> <span class="syntax-symbol">start</span> <span class="syntax-symbol">end</span> <span class="syntax-symbol">update-x</span><span class="syntax-close">)</span>
+    <span class="syntax-open">(</span><span class="syntax-symbol">tween</span> <span class="syntax-symbol">duration</span> <span class="syntax-symbol">end</span> <span class="syntax-symbol">start</span> <span class="syntax-symbol">update-x</span><span class="syntax-close">)</span><span class="syntax-close">)</span><span class="syntax-close">)</span><span class="syntax-close">)</span>
 </pre></div>
 
 <p>This final example uses Chickadee&rsquo;s scripting features
@@ -165,7 +165,7 @@ that were glossed over, and much more.  Try rendering a sprite,
 playing a sound effect, or handling keyboard input.  But most
 importantly: Have fun!
 </p>
-<hr>
+<hr />
 <div class="header">
 <p>
 Next: <a href="Command-Line-Interface.html" accesskey="n" rel="next">Command Line Interface</a>, Previous: <a href="Installation.html" accesskey="p" rel="prev">Installation</a>, Up: <a href="index.html" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html" title="Index" rel="index">Index</a>]</p>
author	David Thompson <dthompson2@worcester.edu>	2023-05-24 08:09:03 -0400
committer	David Thompson <dthompson2@worcester.edu>	2023-05-24 08:09:03 -0400
commit	03072ef67af0623758a660e2cd3fb5e153133efa (patch)
tree	eea30b2b8fd47aa7d1bd6494ed64b4313f03eb4a /manuals/chickadee/Getting-Started.html
parent	bcccc363a3b814930856be06c52914fb88c2ece6 (diff)