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diff --git a/manuals/sly/Keyboard.html b/manuals/sly/Keyboard.html new file mode 100644 index 0000000..b0de8f3 --- /dev/null +++ b/manuals/sly/Keyboard.html @@ -0,0 +1,137 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- Copyright (C) 2013, 2014 David Thompson davet@gnu.org + +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. + + +The document was typeset with +http://www.texinfo.org/ (GNU Texinfo). + --> +<!-- Created by GNU Texinfo 6.0, http://www.gnu.org/software/texinfo/ --> +<head> +<title>Sly: Keyboard</title> + +<meta name="description" content="Sly: Keyboard"> +<meta name="keywords" content="Sly: Keyboard"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="makeinfo"> +<meta charset="UTF-8"> +<link href="index.html#Top" rel="start" title="Top"> +<link href="Index.html#Index" rel="index" title="Index"> +<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="Input.html#Input" rel="up" title="Input"> +<link href="Mouse.html#Mouse" rel="next" title="Mouse"> +<link href="Input.html#Input" rel="prev" title="Input"> +<style type="text/css"> +<!-- +a.summary-letter {text-decoration: none} +blockquote.indentedblock {margin-right: 0em} +blockquote.smallindentedblock {margin-right: 0em; font-size: smaller} +blockquote.smallquotation {font-size: smaller} +div.display {margin-left: 3.2em} +div.example {margin-left: 3.2em} +div.lisp {margin-left: 3.2em} +div.smalldisplay {margin-left: 3.2em} +div.smallexample {margin-left: 3.2em} +div.smalllisp {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} +pre.smalldisplay {font-family: inherit; font-size: smaller} +pre.smallexample {font-size: smaller} +pre.smallformat {font-family: inherit; font-size: smaller} +pre.smalllisp {font-size: smaller} +span.nocodebreak {white-space: nowrap} +span.nolinebreak {white-space: nowrap} +span.roman {font-family: serif; font-weight: normal} +span.sansserif {font-family: sans-serif; font-weight: normal} +ul.no-bullet {list-style: none} +--> +</style> + + +</head> + +<body lang="en"> +<a name="Keyboard"></a> +<div class="header"> +<p> +Next: <a href="Mouse.html#Mouse" accesskey="n" rel="next">Mouse</a>, Up: <a href="Input.html#Input" accesskey="u" rel="up">Input</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html#Index" title="Index" rel="index">Index</a>]</p> +</div> +<hr> +<a name="Keyboard-1"></a> +<h4 class="subsection">4.4.1 Keyboard</h4> + +<div class="example"> +<pre class="example">(use-modules (sly input keyboard)) +</pre></div> + +<p>Keyboard hooks, signals, and procedures. +</p> +<dl> +<dt><a name="index-key_002dpress_002dhook"></a>Scheme Variable: <strong>key-press-hook</strong></dt> +<dd><p>This hook is run whenever a key is pressed down. Procedures added to +this hook should accept two arguments: <code>key</code>, a symbol, and +<code>char</code>, a unicode character. +</p></dd></dl> + +<dl> +<dt><a name="index-key_002drelease_002dhook"></a>Scheme Variable: <strong>key-release-hook</strong></dt> +<dd><p>This hook is run whenever a key is released. Procedures added to this +hook should accept two arguments: <code>key</code>, a symbol, and +<code>char</code>, a unicode character. +</p></dd></dl> + +<dl> +<dt><a name="index-key_002dlast_002ddown"></a>Scheme Signal: <strong>key-last-down</strong></dt> +<dd><p>The last key pressed. +</p></dd></dl> + +<dl> +<dt><a name="index-key_002dlast_002dup"></a>Scheme Signal: <strong>key-last-up</strong></dt> +<dd><p>The last key released. +</p></dd></dl> + +<dl> +<dt><a name="index-key_002ddown_003f"></a>Scheme Procedure: <strong>key-down?</strong> <em><var>key</var></em></dt> +<dd><p>Create a signal for the state of <code>key</code>. The signal value is +<code>#t</code> when <code>key</code> is pressed and <code>#f</code> otherwise. +</p></dd></dl> + +<p>A lot of games use directional keys to control the player. The below +procedure and signals make this style of movement easy to use. +</p> +<dl> +<dt><a name="index-key_002ddirections"></a>Scheme Procedure: <strong>key-directions</strong> <em><var>up</var> <var>down</var> <var>left</var> <var>right</var></em></dt> +<dd><p>Create a signal whose value is a 2D unit vector that can be used for +8-directional movement. The vector is determined by the state of the +directional keys: <code>up</code>, <code>down</code>, <code>left</code>, <code>right</code>. +</p></dd></dl> + +<dl> +<dt><a name="index-key_002darrows"></a>Scheme Signal: <strong>key-arrows</strong></dt> +<dd><p>A 2D directional vector based on the state of the arrow keys. +</p></dd></dl> + +<dl> +<dt><a name="index-key_002dwasd"></a>Scheme Signal: <strong>key-wasd</strong></dt> +<dd><p>A 2D directional vector based on the state of the WASD keys. +</p></dd></dl> + + + + +</body> +</html> |