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Diffstat (limited to 'manuals/chickadee/Invoking-chickadee-play.html')
| -rw-r--r-- | manuals/chickadee/Invoking-chickadee-play.html | 41 |
1 files changed, 37 insertions, 4 deletions
diff --git a/manuals/chickadee/Invoking-chickadee-play.html b/manuals/chickadee/Invoking-chickadee-play.html index 0c9c065..2841c18 100644 --- a/manuals/chickadee/Invoking-chickadee-play.html +++ b/manuals/chickadee/Invoking-chickadee-play.html @@ -98,8 +98,7 @@ the Chickadee game contained within a Scheme source file. events from the game loop: </p> <ul> -<li> load-game -</li><li> quit-game +<li> quit-game </li><li> draw </li><li> update </li><li> key-press @@ -170,8 +169,8 @@ controlled via the following options: <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. +to be 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> @@ -184,6 +183,40 @@ REPL with Guile. Use <code>M-x connect-to-guile</code> to connect to the REPL server. </p> </dd> +<dt><code>--language=<var>language</var></code></dt> +<dd> +<p>Process the input program using <var>language</var>, the identifier of a +language within Guile’s language tower. By default, unsurprisingly, +Scheme is used. +</p> +<p>For example, to use the neat +<a href="https://www.draketo.de/software/wisp">Wisp</a> language as an +alternative to Scheme’s parenthetical syntax, pass +<code>--language=wisp</code>. Wisp is not included with Guile and must be +installed separately. +</p> +</dd> +<dt><code>-x <var>extension</var></code></dt> +<dd> +<p>Add <var>extension</var> to the list of file extensions that Guile will +load. +</p> +<p>For example, Wisp files canonically use the <samp>.w</samp> extension. +Here’s what a “hello, world” Chickadee program looks like in Wisp: +</p> +<div class="example"> +<pre class="example">define : draw alpha + draw-text "Hello, world!" : vec2 260.0 240.0 +</pre></div> + +<p>Assuming the above code is saved to a <samp>hello.w</samp> file, +<code>chickadee play</code> be invoked as follows: +</p> +<div class="example"> +<pre class="example">chickadee play --language=wisp -x .w hello.w +</pre></div> + +</dd> </dl> <hr> |