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-<title>Sly: Agendas</title>
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-<a name="Agendass"></a>
-<div class="header">
-<p>
-Previous: <a href="Coroutines.html#Coroutines" accesskey="p" rel="prev">Coroutines</a>, Up: <a href="Time.html#Time" accesskey="u" rel="up">Time</a> &nbsp; [<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="Agendas-1"></a>
-<h4 class="subsection">4.3.3 Agendas</h4>
-
-<div class="example">
-<pre class="example">(use-modules (sly agenda))
-</pre></div>
-
-<p>Agendas are used to schedule procedures to be called at distinct
-points in time. One agenda, stored in the <code>current-agenda</code>
-parameter, is active at any given time. A global agenda is initially
-bound and is sufficient for most needs. When a separate scheduler is
-required (see <a href="REPL.html#REPL">REPL</a> for one such case), the parameter can be
-rebound using <code>parameterize</code> or <code>with-agenda</code> form.
-</p>
-<dl>
-<dt><a name="index-make_002dagenda"></a>Scheme Procedure: <strong>make-agenda</strong></dt>
-<dd><p>Create a new, empty agenda.
-</p></dd></dl>
-
-<dl>
-<dt><a name="index-agenda_003f"></a>Scheme Syntax: <strong>agenda?</strong> <em><var>obj</var></em></dt>
-<dd><p>Return <code>#t</code> if <var>obj</var> is an agenda.
-</p></dd></dl>
-
-<dl>
-<dt><a name="index-current_002dagenda"></a>Scheme Variable: <strong>current-agenda</strong></dt>
-<dd><p>A parameter containing the current, dynamically scoped agenda object.
-</p></dd></dl>
-
-<dl>
-<dt><a name="index-agenda_002dtime"></a>Scheme Procedure: <strong>agenda-time</strong></dt>
-<dd><p>Return the time of the current agenda.
-</p></dd></dl>
-
-<dl>
-<dt><a name="index-with_002dagenda"></a>Scheme Syntax: <strong>with-agenda</strong> <em><var>agenda</var> <var>body</var> &hellip;</em></dt>
-<dd><p>Evaluate <var>body</var> with <code>current-agenda</code> bound to <var>agenda</var>.
-</p></dd></dl>
-
-<dl>
-<dt><a name="index-agenda_002dtick_0021"></a>Scheme Procedure: <strong>agenda-tick!</strong></dt>
-<dd><p>Increment time by 1 for the current agenda and run scheduled
-procedures.
-</p></dd></dl>
-
-<dl>
-<dt><a name="index-agenda_002dclear_0021"></a>Scheme Procedure: <strong>agenda-clear!</strong></dt>
-<dd><p>Remove all scheduled procedures from the current agenda.
-</p></dd></dl>
-
-<dl>
-<dt><a name="index-schedule"></a>Scheme Procedure: <strong>schedule</strong> <em><var>thunk</var> [<var>delay</var>]</em></dt>
-<dd><p>Schedule <var>thunk</var> to be applied after <var>delay</var> ticks of the
-current agenda. The default <var>delay</var> is one tick.
-</p></dd></dl>
-
-<dl>
-<dt><a name="index-schedule_002dinterval"></a>Scheme Procedure: <strong>schedule-interval</strong> <em><var>thunk</var> <var>interval</var></em></dt>
-<dd><p>Schedule <var>thunk</var> to be applied every <var>interval</var> ticks of the
-current agenda, forever.
-</p></dd></dl>
-
-<dl>
-<dt><a name="index-schedule_002deach"></a>Scheme Procedure: <strong>schedule-each</strong> <em><var>thunk</var></em></dt>
-<dd><p>Schedule <var>thunk</var> to be applied upon every tick of the current
-agenda, forever.
-</p></dd></dl>
-
-<p><a href="Coroutines.html#Coroutines">Coroutines</a> become particularly useful for game programming when
-combined with the agenda. For example, a computer controller opponent
-could periodically pause its AI algorithm to give the rest of the game
-world a chance to do some processing. By using the <code>wait</code>
-procedure, algorithms that span multiple ticks of game time can be
-written in a straightforward, natural way.
-</p>
-<dl>
-<dt><a name="index-wait"></a>Scheme Procedure: <strong>wait</strong> <em><var>delay</var></em></dt>
-<dd><p>Abort the current coroutine prompt and schedule the continuation to be
-run after <var>delay</var> ticks of the current agenda.
-</p></dd></dl>
-<hr>
-<div class="header">
-<p>
-Previous: <a href="Coroutines.html#Coroutines" accesskey="p" rel="prev">Coroutines</a>, Up: <a href="Time.html#Time" accesskey="u" rel="up">Time</a> &nbsp; [<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>
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