1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
<!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
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>Invoking chickadee play (The Chickadee Game Toolkit)</title>
<meta name="description" content="Invoking chickadee play (The Chickadee Game Toolkit)">
<meta name="keywords" content="Invoking chickadee play (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="Command-Line-Interface.html" rel="up" title="Command Line Interface">
<link href="Invoking-chickadee-bundle.html" rel="next" title="Invoking chickadee bundle">
<link href="Command-Line-Interface.html" rel="prev" title="Command Line Interface">
<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="Invoking-chickadee-play"></span><div class="header">
<p>
Next: <a href="Invoking-chickadee-bundle.html" accesskey="n" rel="next">Invoking chickadee bundle</a>, Up: <a href="Command-Line-Interface.html" accesskey="u" rel="up">Command Line Interface</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="Invoking-chickadee-play-1"></span><h3 class="section">3.1 Invoking <code>chickadee play</code></h3>
<p>The <code>chickadee play</code> command is used to open a window and run
the Chickadee game contained within a Scheme source file.
</p>
<div class="example">
<pre class="example">chickadee play the-legend-of-emacs.scm
</pre></div>
<p>In this file, special procedures may be defined to handle various
events from the game loop:
</p>
<ul>
<li> load-game
</li><li> quit-game
</li><li> draw
</li><li> update
</li><li> key-press
</li><li> key-release
</li><li> text-input
</li><li> mouse-press
</li><li> mouse-release
</li><li> mouse-move
</li><li> mouse-wheel
</li><li> controller-add
</li><li> controller-remove
</li><li> controller-press
</li><li> controller-release
</li><li> controller-move
</li></ul>
<p>See <a href="The-Game-Loop.html">The Game Loop</a> for complete information on all of these
hooks, such as the arguments that each procedure receives.
</p>
<p>In additional to evaluating the specified source file, the directory
containing that file is added to Guile’s load path so that games can
easily be divided into many different files. Furthermore, that
directory is entered prior to evaluating the file so that data files
(images, sounds, etc.) can be loaded relative to the main source file,
regardless of what the current directory was when <code>chickadee
play</code> was invoked.
</p>
<p>Many aspects of the initial game window and environment can be
controlled via the following options:
</p>
<dl compact="compact">
<dt><code>--title=<var>title</var></code></dt>
<dt><code>-t <var>title</var></code></dt>
<dd>
<p>Set the window title to <var>title</var>.
</p>
</dd>
<dt><code>--width=<var>width</var></code></dt>
<dt><code>-w <var>width</var></code></dt>
<dd>
<p>Set the window width to <var>width</var> pixels.
</p>
</dd>
<dt><code>--height=<var>height</var></code></dt>
<dt><code>-h <var>height</var></code></dt>
<dd>
<p>Set the window height to <var>height</var> pixels.
</p>
</dd>
<dt><code>--fullscreen</code></dt>
<dt><code>-f</code></dt>
<dd>
<p>Open window in fullscreen mode.
</p>
</dd>
<dt><code>--resizable</code></dt>
<dt><code>-r</code></dt>
<dd>
<p>Make window resizable.
</p>
</dd>
<dt><code>--update-hz=<var>n</var></code></dt>
<dt><code>-u <var>n</var></code></dt>
<dd>
<p>Update the game <var>n</var> times per second.
</p>
</dd>
<dt><code>--repl</code></dt>
<dd>
<p>Launch a REPL in the terminal. This will allow the game environment
to debugged and modified without having to stop and restart the game
after each change.
</p>
</dd>
<dt><code>--repl-server[=<var>port</var>]</code></dt>
<dd>
<p>Launch a REPL server on port <var>port</var>, or 37146 by default.
</p>
<p><code>telnet localhost 37146</code> (or whatever port number was given)
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>
</dd>
</dl>
<hr>
<div class="header">
<p>
Next: <a href="Invoking-chickadee-bundle.html" accesskey="n" rel="next">Invoking chickadee bundle</a>, Up: <a href="Command-Line-Interface.html" accesskey="u" rel="up">Command Line Interface</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>
</body>
</html>
|
