diff options
Diffstat (limited to 'manuals/chickadee/Live-Coding.html')
| -rw-r--r-- | manuals/chickadee/Live-Coding.html | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/manuals/chickadee/Live-Coding.html b/manuals/chickadee/Live-Coding.html deleted file mode 100644 index e34b29e..0000000 --- a/manuals/chickadee/Live-Coding.html +++ /dev/null @@ -1,133 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> -<html> -<!-- 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 -or any later version published by the Free Software Foundation; -with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. -A copy of the license is included in the section entitled "GNU -Free Documentation License". - -A copy of the license is also available from the Free Software -Foundation Web site at http://www.gnu.org/licenses/fdl.html. - - -* Chickadee: (chickadee). Game programming toolkit for Guile. - -The document was typeset with -http://www.texinfo.org/ (GNU 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" /> -<title>Live Coding (The Chickadee Game Toolkit)</title> - -<meta name="description" content="Live Coding (The Chickadee Game Toolkit)" /> -<meta name="keywords" content="Live Coding (The Chickadee Game Toolkit)" /> -<meta name="resource-type" content="document" /> -<meta name="distribution" content="global" /> -<meta name="Generator" content="makeinfo" /> -<link href="index.html" rel="start" title="Top" /> -<link href="Index.html" rel="index" title="Index" /> -<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents" /> -<link href="index.html" rel="up" title="Top" /> -<link href="API-Reference.html" rel="next" title="API Reference" /> -<link href="Invoking-chickadee-bundle.html" rel="prev" title="Invoking chickadee bundle" /> -<style type="text/css"> -<!-- -a.summary-letter {text-decoration: none} -blockquote.indentedblock {margin-right: 0em} -div.display {margin-left: 3.2em} -div.example {margin-left: 3.2em} -div.lisp {margin-left: 3.2em} -kbd {font-style: oblique} -pre.display {font-family: inherit} -pre.format {font-family: inherit} -pre.menu-comment {font-family: serif} -pre.menu-preformatted {font-family: serif} -span.nolinebreak {white-space: nowrap} -span.roman {font-family: initial; font-weight: normal} -span.sansserif {font-family: sans-serif; font-weight: normal} -ul.no-bullet {list-style: none} -@media (min-width: 1140px) { - body { - margin-left: 14rem; - margin-right: 4rem; - max-width: 52rem; - } -} - -@media (min-width: 800px) and (max-width: 1140px) { - body { - margin-left: 6rem; - margin-right: 4rem; - max-width: 52rem; - } -} - -@media (max-width: 800px) { - body { - margin: 1rem; - } -} - ---> -</style> -<link rel="stylesheet" type="text/css" href="https://dthompson.us/css/dthompson.css" /> - - -</head> - -<body lang="en"> -<span id="Live-Coding"></span><div class="header"> -<p> -Next: <a href="API-Reference.html" accesskey="n" rel="next">API Reference</a>, Previous: <a href="Command-Line-Interface.html" accesskey="p" rel="prev">Command Line Interface</a>, Up: <a href="index.html" accesskey="u" rel="up">Top</a> [<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 /> -<span id="Live-Coding-1"></span><h2 class="chapter">4 Live Coding</h2> - -<p>One of the biggest appeals of any Lisp dialect is the ability to use -the “read-eval-print loop” (REPL for short) to build programs -iteratively and interactively while the program is running. However, -programs that run in an event loop and respond to user input (such as -a game using the Chickadee library!) require special care for this -workflow to be pleasant. -</p> -<p>If you are using the <code>chickadee play</code> command to run your -game, then the <code>--repl</code> or <code>--repl-server</code> arguments are all -you need to get a live coding environment running. -</p> -<p>If, however, you are using <code>run-game</code> to start the game loop then -it’s still fairly easy to hook up a special kind of REPL by yourself. -</p> -<p>First, create a cooperative REPL server (It’s important to use Guile’s -cooperative REPL server instead of the standard REPL server in -<code>(system repl server)</code> to avoid thread synchronization issues). -Then, in the game loop’s update procedure, call -<code>poll-coop-repl-server</code> and pass the REPL object. Here is a -template to follow: -</p> -<div class="lisp"> -<pre class="lisp"><span class="syntax-open">(</span><span class="syntax-symbol">use-modules</span> <span class="syntax-open">(</span><span class="syntax-symbol">chickadee</span><span class="syntax-close">)</span> - <span class="syntax-open">(</span><span class="syntax-symbol">system</span> <span class="syntax-symbol">repl</span> <span class="syntax-symbol">coop-server</span><span class="syntax-close">)</span><span class="syntax-close">)</span> - -<span class="syntax-open">(</span><span class="syntax-special">define</span> <span class="syntax-symbol">repl</span> <span class="syntax-open">(</span><span class="syntax-symbol">spawn-coop-repl-server</span><span class="syntax-close">)</span><span class="syntax-close">)</span> - -<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">poll-coop-repl-server</span> <span class="syntax-symbol">repl</span><span class="syntax-close">)</span> - <span class="syntax-symbol">...</span><span class="syntax-close">)</span> - -<span class="syntax-open">(</span><span class="syntax-symbol">run-game</span> <span class="syntax-keyword">#:update</span> <span class="syntax-symbol">update</span> <span class="syntax-symbol">...</span><span class="syntax-close">)</span> -</pre></div> - -<p>To use the REPL, connect to it via port 37146. Telnet will do the -trick, but using the <a href="https://www.nongnu.org/geiser/">Geiser</a> -extension for Emacs is by far the best way to develop at the REPL with -Guile. Use <code>M-x connect-to-guile</code> to connect to the REPL server. -</p> - - - -</body> -</html> |