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
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<!-- Copyright (C) 2017-2020 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 6.6, http://www.gnu.org/software/texinfo/ -->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Scripting (The Chickadee Game Toolkit)</title>
<meta name="description" content="Scripting (The Chickadee Game Toolkit)">
<meta name="keywords" content="Scripting (The Chickadee Game Toolkit)">
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="makeinfo">
<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="API-Reference.html#API-Reference" rel="up" title="API Reference">
<link href="Agendas.html#Agendas" rel="next" title="Agendas">
<link href="The-Environment.html#The-Environment" rel="prev" title="The Environment">
<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="Scripting"></span><div class="header">
<p>
Previous: <a href="Audio.html#Audio" accesskey="p" rel="prev">Audio</a>, Up: <a href="API-Reference.html#API-Reference" accesskey="u" rel="up">API Reference</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>
<span id="Scripting-1"></span><h3 class="section">2.5 Scripting</h3>
<p>Game logic is a web of asynchronous events that are carefully
coordinated to bring the game world to life. In order to make an
enemy follow and attack the player, or move an NPC back and forth in
front of the item shop, or do both at the same time, a scripting
system is a necessity. Chickadee comes with an asynchronous
programming system in the <code>(chickadee scripting)</code> module.
Lightweight, cooperative threads known as “scripts” allow the
programmer to write asynchronous code as if it were synchronous, and
allow many such “threads” to run concurrently.
</p>
<p>But before we dig deeper into scripts, let’s discuss the simple act
of scheduling tasks.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">• <a href="Agendas.html#Agendas" accesskey="1">Agendas</a></td><td> </td><td align="left" valign="top">Scheduling tasks.
</td></tr>
<tr><td align="left" valign="top">• <a href="Scripts.html#Scripts" accesskey="2">Scripts</a></td><td> </td><td align="left" valign="top">Cooperative multitasking.
</td></tr>
<tr><td align="left" valign="top">• <a href="Tweening.html#Tweening" accesskey="3">Tweening</a></td><td> </td><td align="left" valign="top">Animations.
</td></tr>
<tr><td align="left" valign="top">• <a href="Channels.html#Channels" accesskey="4">Channels</a></td><td> </td><td align="left" valign="top">Publish data to listeners.
</td></tr>
</table>
</body>
</html>
|