-
Notifications
You must be signed in to change notification settings - Fork 6
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
29 changed files
with
1,681 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| <!DOCTYPE html> | ||
| <!-- | ||
| AUTOMATICALLY GENERATED USING THE CATSPEAK BOOK GENERATOR: | ||
| https://github.com/katsaii/catspeak-lang | ||
| --><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="author" content="Katsaii"><meta name="description" content="A brief overview of Catspeak."><title>Catspeak Reference :: Catspeak For Developers of Home</title><link rel="stylesheet" href="./style.css"><script>function copyToClipboard(id) { | ||
| let e = document.getElementById(id); | ||
| navigator.clipboard.writeText(e.textContent); | ||
| }</script><noscript><style>a.code-copy { display : none }</style></noscript></head><body><header><h1>Catspeak Reference</h1><nav><ul><li><a href="hom-welcome.html"><mark>Home</mark></a></li><li><a href="lan-overview.html">Language Reference</a></li><li><a href="lib-init.html">Library Reference</a></li></ul></nav><hr></header><article id="chapter-content"><aside id="chapters"><h2>Chapters</h2><ul><li><a href="hom-welcome.html">Welcome</a></li><li><a href="hom-getting-started.html">Getting Started</a></li><li><a href="hom-catspeak-for-developers.html"><mark>Catspeak For Developers</mark></a></li><li><a href="hom-catspeak-for-modders.html">Catspeak For Modders</a></li><li><a href="hom-license.html">License</a></li></ul></aside><aside id="contents"><h2>Contents</h2><ul><li><a href="#parsing">Parsing</a></li><li><a href="#compiling">Compiling</a></li><li><a href="#executing">Executing</a></li><li><a href="#interfacing-with-gml">Interfacing with GML</a></li></ul></aside><main><article><h1 class="chapter-title">Catspeak For Developers</h1><p>Catspeak is the spiritual successor to the old GML function <code class="inline-code">execute_string</code>. | ||
| This means that custom user code can be executed as a string by your game | ||
| for modding support or a debug console. In nerdspeak: Catspeak is a compiler | ||
| backend and virtual machine for executing arbitrary code at runtime.</p><p>Unlike <code class="inline-code">execute_string</code>, Catspeak is slightly more involved, requiring three | ||
| separate steps:</p><ul><li><p><a href="#parsing">Parsing</a></p></li><li><p><a href="#compiling">Compiling</a></p></li><li><p><a href="#executing">Executing</a></p></li></ul><p>In order for your modders to access information about your game, you need to | ||
| manually expose a modding API (covered briefly in the <a href="#interfacing-with-gml">Interfacing with GML</a> | ||
| section). <em>Catspeak does not do this for you by default.</em> Further information | ||
| about different methods to expose functions can be found in the <a href="./lib-struct-catspeakforeigninte+s.html">Library Reference</a> | ||
| book.</p><p>If this busywork does not sound interesting to you, and you're the kind of | ||
| developer who likes to cut corners, then you can <a href="./lib-struct-catspeakforeigninte+s.html#exposeeverythingidontcareifmod+s">throw caution to the wind</a> | ||
| and include the following code in your project:</p><pre class="code-block" lang="meow"><div class="code-triangle"></div><div class="code-title">Catspeak (.meow)</div><a class="code-copy" onclick="copyToClipboard('cb-0')">Copy</a><code id="cb-0"><span class="kw-typ">Catspeak</span>.<span class="kw-var">interface</span>.<span class="kw-var">exposeEverythingIDontCareIfModdersCanEditUsersSaveFilesJustLetMeDoThis</span> = <span class="kw-val">true</span>; | ||
| </code></pre><p>This will force Catspeak lift the veil safety and attempt to give modders access | ||
| every intimate detail about your game. Don't say I didn't warn you.</p><section><h1 class="heading" id="parsing"><a href="#parsing">§</a> <strong>Parsing</strong><a href="#" class="heading-top">top ^</a></h1><p>Parsing is the first step. This involves taking the human-readable form of | ||
| Catspeak source code, and converting it into an executable form. This can | ||
| be done from a string or a UTF-8 encoded buffer.</p><p>Parsing code from a string using <code class="inline-code">Catspeak.parseString</code>:</p><pre class="code-block" lang="gml"><div class="code-triangle"></div><div class="code-title">GameMaker Language (.gml)</div><a class="code-copy" onclick="copyToClipboard('cb-1')">Copy</a><code id="cb-1"><span class="kw-key">var</span> <span class="kw-var">hir</span> = <span class="kw-typ">Catspeak</span>.<span class="kw-fun">parseString</span>(<span class="kw-val">@' | ||
| let n = 0 | ||
| while n <= 10 { | ||
| n += 1 | ||
| } | ||
| return "blast off!" | ||
| '</span>); | ||
| </code></pre><p>Parsing code from a file called "my_mod.meow", using <code class="inline-code">Catspeak.parse</code>:</p><pre class="code-block" lang="gml"><div class="code-triangle"></div><div class="code-title">GameMaker Language (.gml)</div><a class="code-copy" onclick="copyToClipboard('cb-2')">Copy</a><code id="cb-2"><span class="kw-key">var</span> <span class="kw-var">file</span> = <span class="kw-fun">buffer_load</span>(<span class="kw-val">"my_mod.meow"</span>); | ||
|
|
||
| <span class="kw-key">var</span> <span class="kw-var">hir</span> = <span class="kw-typ">Catspeak</span>.<span class="kw-fun">parse</span>(<span class="kw-var">file</span>); | ||
|
|
||
| <span class="kw-fun">buffer_delete</span>(<span class="kw-var">file</span>); | ||
| </code></pre><p>The parser produces a <strong>hierarchical intermediate-representation</strong> (HIR), | ||
| storing information like what functions are defined, where they are defined, | ||
| how many variables are used, what functions are being called and when, etc.</p><p>This information is stored as a JSON object, so you can cache this to a file | ||
| to avoid parsing large mods every time the game loads.</p></section><section><h1 class="heading" id="compiling"><a href="#compiling">§</a> <strong>Compiling</strong><a href="#" class="heading-top">top ^</a></h1><p>Compiling is the second step. This involves taking the executable form of a | ||
| Catspeak program (the HIR obtained from <a href="#parsing">Parsing</a>) and transforms it | ||
| into a callable GML function.</p><p>Compiling a <code class="inline-code">program</code> from the <code class="inline-code">hir</code> using <code class="inline-code">Catspeak.compile</code>:</p><pre class="code-block" lang="gml"><div class="code-triangle"></div><div class="code-title">GameMaker Language (.gml)</div><a class="code-copy" onclick="copyToClipboard('cb-3')">Copy</a><code id="cb-3"><span class="kw-key">var</span> <span class="kw-var">program</span> = <span class="kw-typ">Catspeak</span>.<span class="kw-fun">compile</span>(<span class="kw-var">hir</span>); | ||
| </code></pre></section><section><h1 class="heading" id="executing"><a href="#executing">§</a> <strong>Executing</strong><a href="#" class="heading-top">top ^</a></h1><p>Executing is the third and final step; this is the fun part. After compiling | ||
| a program, it can be called like any ordinary GML function like:</p><pre class="code-block" lang="gml"><div class="code-triangle"></div><div class="code-title">GameMaker Language (.gml)</div><a class="code-copy" onclick="copyToClipboard('cb-4')">Copy</a><code id="cb-4"><span class="kw-fun">program</span>(); | ||
| </code></pre><p>As many times as you want:</p><pre class="code-block" lang="gml"><div class="code-triangle"></div><div class="code-title">GameMaker Language (.gml)</div><a class="code-copy" onclick="copyToClipboard('cb-5')">Copy</a><code id="cb-5"><span class="kw-fun">program</span>(); | ||
| <span class="kw-fun">program</span>(); | ||
| <span class="kw-fun">program</span>(); | ||
| <span class="kw-key">repeat</span> (<span class="kw-val">10</span>) { | ||
| <span class="kw-fun">program</span>(); | ||
| } | ||
| </code></pre><p>When adding mod support, you should aim to pre-compile all of your mod scripts | ||
| at the start of the game, and then reuse the compiled program during gameplay. | ||
| Otherwise, your game may experience performance issues due to the slowness of | ||
| parsing and compiling programs relative to execution.</p></section><section><h1 class="heading" id="interfacing-with-gml"><a href="#interfacing-with-gml">§</a> <strong>Interfacing with GML</strong><a href="#" class="heading-top">top ^</a></h1><p>You can expose additional functions, constants, and assets to Catspeak programs | ||
| by using the methods on <code class="inline-code">Catspeak.interface</code>. For example, using the functions | ||
| <code class="inline-code">exposeFunction</code>, <code class="inline-code">exposeConstant</code>, and <code class="inline-code">exposeAsset</code> to make <code class="inline-code">show_message</code>, | ||
| <code class="inline-code">pi</code>, and <code class="inline-code">spr_player</code> available from within a Catspeak function:</p><pre class="code-block" lang="gml"><div class="code-triangle"></div><div class="code-title">GameMaker Language (.gml)</div><a class="code-copy" onclick="copyToClipboard('cb-6')">Copy</a><code id="cb-6"><span class="kw-typ">Catspeak</span>.<span class="kw-var">interface</span>.<span class="kw-fun">exposeFunction</span>(<span class="kw-val">"show_message"</span>, <span class="kw-var">show_message</span>); | ||
| <span class="kw-typ">Catspeak</span>.<span class="kw-var">interface</span>.<span class="kw-fun">exposeConstant</span>(<span class="kw-val">"math_pi"</span>, <span class="kw-var">pi</span>); | ||
| <span class="kw-typ">Catspeak</span>.<span class="kw-var">interface</span>.<span class="kw-fun">exposeAsset</span>(<span class="kw-val">"sPlayer"</span>, <span class="kw-var">spr_player</span>); | ||
| </code></pre><p>Then using these from within a custom Catspeak function, like:</p><pre class="code-block" lang="gml"><div class="code-triangle"></div><div class="code-title">GameMaker Language (.gml)</div><a class="code-copy" onclick="copyToClipboard('cb-7')">Copy</a><code id="cb-7"><span class="kw-key">var</span> <span class="kw-var">hir</span> = <span class="kw-typ">Catspeak</span>.<span class="kw-fun">parseString</span>(<span class="kw-val">@' | ||
| let tau = math_pi * 2; | ||
| show_message([sPlayer, tau]); | ||
| '</span>); | ||
| <span class="kw-key">var</span> <span class="kw-var">program</span> = <span class="kw-typ">Catspeak</span>.<span class="kw-fun">compile</span>(<span class="kw-var">hir</span>); | ||
| <span class="kw-fun">program</span>(); | ||
| </code></pre><p>This is necessary so that modders are sandboxed from each other, and don't have | ||
| unchecked access to your entire game state. There are many other ways of | ||
| exposing GML assets to Catspeak programs, see <a href="lib-struct-catspeakforeigninte+s.html">CatspeakForeignInterface</a></p></section></article></main></article><footer><hr><article><em id="brand">Built using Catlog, the <a href="https://www.katsaii.com/catspeak-lang/">Catspeak</a> book generator.</em></article><article></article></footer></body></html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| <!DOCTYPE html> | ||
| <!-- | ||
| AUTOMATICALLY GENERATED USING THE CATSPEAK BOOK GENERATOR: | ||
| https://github.com/katsaii/catspeak-lang | ||
| --><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="author" content="Katsaii"><meta name="description" content="A brief overview of Catspeak."><title>Catspeak Reference :: Catspeak For Modders of Home</title><link rel="stylesheet" href="./style.css"><script>function copyToClipboard(id) { | ||
| let e = document.getElementById(id); | ||
| navigator.clipboard.writeText(e.textContent); | ||
| }</script><noscript><style>a.code-copy { display : none }</style></noscript></head><body><header><h1>Catspeak Reference</h1><nav><ul><li><a href="hom-welcome.html"><mark>Home</mark></a></li><li><a href="lan-overview.html">Language Reference</a></li><li><a href="lib-init.html">Library Reference</a></li></ul></nav><hr></header><article id="chapter-content"><aside id="chapters"><h2>Chapters</h2><ul><li><a href="hom-welcome.html">Welcome</a></li><li><a href="hom-getting-started.html">Getting Started</a></li><li><a href="hom-catspeak-for-developers.html">Catspeak For Developers</a></li><li><a href="hom-catspeak-for-modders.html"><mark>Catspeak For Modders</mark></a></li><li><a href="hom-license.html">License</a></li></ul></aside><aside id="contents"></aside><main><article><h1 class="chapter-title">Catspeak For Modders</h1><p><em>Documentation for the Catspeak programming language is included in the <a href="./lan-overview.html">Language Reference</a> book.</em></p><p>Catspeak is a tool game developers can use to offer modding support to players. | ||
| However, depending on the game, the modding API its developers reveal to modders | ||
| could vary wildly. Because of this, you should contact the developers of the | ||
| game and make sure they compile a list of which functions are exposed by their | ||
| API, if they haven't already. Catspeak is not responsible for this.</p><p>The likelyhood that the modding API will include built-in GameMaker functions | ||
| is high, so you should familiarise yourself with the documentation for the | ||
| <a href="https://manual.gamemaker.io/monthly/en/#t=GameMaker_Language%2FGML_Reference%2FGML_Reference.htm">GameMaker standard library</a>.</p><p>Catspeak comes packaged with a custom programming language which resembles | ||
| JavaScript and GameMaker Language. It's likely that most games adding mod | ||
| support through Catspeak will use this pre-packaged language. However, if the | ||
| game you are creating a mod for uses a different language, then you need to ask | ||
| the developers of that game for information about the language they are using | ||
| for modding.</p><section><h1 class="heading" id="dealing-with-errors"><a href="#dealing-with-errors">§</a> <strong>Dealing with Errors</strong><a href="#" class="heading-top">top ^</a></h1><p>Chances are your mod will fail or misbehave eventually. Whether or not this is | ||
| a fatal error (the game crashes) or a silent error (the game unloads your mod) | ||
| is up to the developers of the game to decide. If you suspect that your mod is | ||
| failing for whatever reason, you should:</p><ul><li><p>Figure out how the developers are handling mod errors so you can get a an | ||
| error trace. This will help tell you the line and column the error occurred | ||
| on.</p></li><li><p>Check that your code does not have any typos, which can be a common error.</p></li><li><p>Check that the syntax for your code is correct by familiarising yourself with | ||
| the modding language. <em>Documentation for the built-in Catspeak programming | ||
| language can be found in the <a href="./lan-overview.html">Language Reference</a> book.</em> | ||
| When in doubt, do not make assumptions about syntax; look it up.</p></li><li><p>Ask the developers for more debugging tools, like exposing GameMakers | ||
| <code class="inline-code">show_debug_message</code> function.</p></li><li><p>Cry in a corner against all odds.</p></li></ul></section></article></main></article><footer><hr><article><em id="brand">Built using Catlog, the <a href="https://www.katsaii.com/catspeak-lang/">Catspeak</a> book generator.</em></article><article></article></footer></body></html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| <!DOCTYPE html> | ||
| <!-- | ||
| AUTOMATICALLY GENERATED USING THE CATSPEAK BOOK GENERATOR: | ||
| https://github.com/katsaii/catspeak-lang | ||
| --><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="author" content="Katsaii"><meta name="description" content="A brief overview of Catspeak."><title>Catspeak Reference :: Getting Started of Home</title><link rel="stylesheet" href="./style.css"><script>function copyToClipboard(id) { | ||
| let e = document.getElementById(id); | ||
| navigator.clipboard.writeText(e.textContent); | ||
| }</script><noscript><style>a.code-copy { display : none }</style></noscript></head><body><header><h1>Catspeak Reference</h1><nav><ul><li><a href="hom-welcome.html"><mark>Home</mark></a></li><li><a href="lan-overview.html">Language Reference</a></li><li><a href="lib-init.html">Library Reference</a></li></ul></nav><hr></header><article id="chapter-content"><aside id="chapters"><h2>Chapters</h2><ul><li><a href="hom-welcome.html">Welcome</a></li><li><a href="hom-getting-started.html"><mark>Getting Started</mark></a></li><li><a href="hom-catspeak-for-developers.html">Catspeak For Developers</a></li><li><a href="hom-catspeak-for-modders.html">Catspeak For Modders</a></li><li><a href="hom-license.html">License</a></li></ul></aside><aside id="contents"><h2>Contents</h2><ul><li><a href="#installation">Installation</a></li><li><a href="#basic-usage">Basic Usage</a></li></ul></aside><main><article><h1 class="chapter-title">Getting Started</h1><section><h1 class="heading" id="installation"><a href="#installation">§</a> <strong>Installation</strong><a href="#" class="heading-top">top ^</a></h1><ul><li><p>Get a recent release of Catspeak from the <a href="https://github.com/katsaii/catspeak-lang/releases">GitHub releases page</a>. | ||
| You should see a download for a file with the extension <code class="inline-code">.yymps</code>.</p></li><li><p>Open your project file in the GameMaker IDE.</p></li><li><p>Navigate to the toolbar at the top of the IDE and find "Tools". Click this | ||
| and select "Import Local Package" from the drop-down menu.</p></li><li><p>Select the <code class="inline-code">.yymps</code> file you downloaded, and follow the wizard to import | ||
| the Catspeak resources. If you're not sure what to import, click "Add All".</p></li></ul><p>Now you're setup, see the <a href="#basic-usage">Basic Usage</a> section for an | ||
| introductory example, or read through the <a href="./hom-catspeak-for-developers.html">Catspeak for Developers</a> | ||
| chapter for a full-fat overview.</p></section><section><h1 class="heading" id="basic-usage"><a href="#basic-usage">§</a> <strong>Basic Usage</strong><a href="#" class="heading-top">top ^</a></h1><p>A minimal working example of a function which returns a message:</p><pre class="code-block" lang="gml"><div class="code-triangle"></div><div class="code-title">GameMaker Language (.gml)</div><a class="code-copy" onclick="copyToClipboard('cb-0')">Copy</a><code id="cb-0"><span class="kw-com">// parse Catspeak code</span> | ||
| <span class="kw-key">var</span> <span class="kw-var">hir</span> = <span class="kw-typ">Catspeak</span>.<span class="kw-fun">parseString</span>(<span class="kw-val">@' | ||
| let catspeak = "Catspeak" | ||
|
|
||
| return "hello! from within " + catspeak | ||
| '</span>); | ||
|
|
||
| <span class="kw-com">// compile Catspeak code into a callable GML function</span> | ||
| <span class="kw-key">var</span> <span class="kw-var">getMessage</span> = <span class="kw-typ">Catspeak</span>.<span class="kw-fun">compile</span>(<span class="kw-var">hir</span>); | ||
|
|
||
| <span class="kw-com">// call the Catspeak code just like you would any other GML function!</span> | ||
| <span class="kw-fun">show_message</span>(<span class="kw-fun">getMessage</span>()); | ||
| </code></pre><p>Create an object, then copy-and-paste this code into its create event to see | ||
| magic happen.</p></section></article></main></article><footer><hr><article><em id="brand">Built using Catlog, the <a href="https://www.katsaii.com/catspeak-lang/">Catspeak</a> book generator.</em></article><article></article></footer></body></html> |
Oops, something went wrong.