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Add doc for ecs, asset

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Étienne Fildadut 2021-12-25 17:08:08 +01:00
parent 31472b2a85
commit d4e2a1d94a
14 changed files with 2938 additions and 592 deletions
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61
asset/asset.lua
View file

@ -1,21 +1,44 @@
--- ubiquitousse.asset
-- No dependencies.
--- Asset manager. Loads asset and cache them.
-- This file has no dependency to either ubiquitousse or a ubiquitousse backend.
--- Asset manager.
--
-- Loads asset and cache them.
--
-- This only provides a streamlined way to handle asset, and doesn't handle the actual file loading/object creation itself; you are expected to provide your own asset loaders.
-- See the __call method for more details on how assets are loaded. Hopefully this will allow you to use asset which are more game-specific than "image" or "audio".
--
-- See the `Asset:__call` method for more details on how assets are loaded. Hopefully this will allow you to use asset which are more game-specific than "image" or "audio".
--
-- No dependencies.
-- @module asset
--- Asset manager.
-- @type Asset
local asset_mt = {
--- A prefix for asset names.
-- @ftype string
prefix = nil,
--- The asset cache. Each cached asset is indexed with a string key "type.assetName".
-- @ftype table {["assetName"]=asset}
cache = nil,
--- The loaders table.
-- @ftype table {["prefix"]=function, ...}
loaders = nil,
--- Load (and cache) an asset.
--
-- Asset name are similar to Lua module names (directory separator is the dot . and no extention should be specified).
-- To load an asset, ubiquitousse will try every loaders in the loader list with a name that prefix the asset name.
-- The first value returned will be used as the asset value.
--
-- Loaders are called with the arguments:
--
-- * path: the asset full path, except extension
-- * ...: other arguments given after the asset name. Can only be number and strings.
-- @tparam assetName string the asset's full name
-- @tparam ... number/string other arguments for the asset loader
-- @tparam string assetName string the asset's full name
-- @tparam number/string ... other arguments for the asset loader
-- @return the asset
-- @usage
-- local image = asset("image.example")
__call = function(self, assetName, ...)
local cache = self.cache
local hash = table.concat({assetName, ...}, ".")
@ -36,6 +59,7 @@ local asset_mt = {
end,
--- Preload a list of assets.
-- @tparam {"asset1",...} list list of assets to load
load = function(self, list)
for _, asset in ipairs(list) do
self(asset)
@ -50,27 +74,28 @@ local asset_mt = {
}
asset_mt.__index = asset_mt
--- Asset module.
-- @section end
local asset = {
--- Create a new asset manager.
--
-- If the caching "mode" is set to auto (default), the asset manager will allow assets to be automaticaly garbage collected by Lua.
--
-- If set to "manual", the assets will not be garbage collected unless the clear method is called.
-- "manual" mode is useful if you have assets that are particularly slow to load and you want full control on when they are loaded and unloaded (typically a loading screen).
-- @tparam directory string the directory in which the assets will be loaded
-- @tparam loaders table loaders table: {prefix = function, ...}
-- @tparam mode string[opt="auto"] caching mode
new = function(dir, loaders, mode)
-- @tparam string directory the directory in which the assets will be loaded
-- @tparam table loaders loaders table: {prefix = function, ...}
-- @tparam[opt="auto"] string mode caching mode
-- @treturn Asset the new asset manager
new = function(directory, loaders, mode)
local cache = {}
if mode == nil or mode == "auto" then
setmetatable(cache, { __mode = "v" })
end
return setmetatable({
--- A prefix for asset names
prefix = dir..".",
--- The asset cache. Each cached asset is indexed with a string key "type.assetName".
prefix = directory..".",
cache = cache,
--- The loaders table.
loaders = loaders
}, asset_mt)
end

23
config.ld
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@ -8,11 +8,26 @@ See [main module](modules/init.html) for more information, or the [GitHub page](
--package = "ubiquitousse"
format = "discount"
style = "!fixed"
no_summary = true
style = "!new"
not_luadoc = true
custom_tags = { { "require", title="Requires" } }
custom_tags = {
{ "require", title="Requires" },
{ "ftype", title="Type", format = function(x)
local firstWord, rest = x:match("^([^%s]*)(.*)$")
return ('<code>%s</code>%s'):format(firstWord, rest)
end },
{ "ro", hidden=true },
{ "callback", hidden=true },
}
custom_display_name_handler = function(item, default_handler)
if item.tags.callback then
return default_handler(item) .. ' <sup><em>[callback]</em></sup>'
elseif item.tags.ro then
return default_handler(item) .. ' <sup><em>[read-only]</em></sup>'
end
return default_handler(item)
end
topics = { "README.md", "LICENSE" }
file = { "init.lua", "ldtk/ldtk.can" }
file = { "init.lua", "ldtk/ldtk.can", "ecs/ecs.can", "asset/asset.lua" }

20
doc/index.html
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@ -4,7 +4,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<head>
<title>Ubiquitousse reference</title>
<link rel="stylesheet" href="ldoc_fixed.css" type="text/css" />
<link rel="stylesheet" href="ldoc_new.css" type="text/css" />
</head>
<body>
@ -32,8 +32,10 @@
<h2>Modules</h2>
<ul class="nowrap">
<li><a href="modules/init.html">init</a></li>
<li><a href="modules/ubiquitousse.html">ubiquitousse</a></li>
<li><a href="modules/ldtk.html">ldtk</a></li>
<li><a href="modules/ecs.html">ecs</a></li>
<li><a href="modules/asset.html">asset</a></li>
</ul>
<h2>Topics</h2>
<ul class="">
@ -54,13 +56,23 @@
<h2>Modules</h2>
<table class="module_list">
<tr>
<td class="name" nowrap><a href="modules/init.html">init</a></td>
<td class="name" nowrap><a href="modules/ubiquitousse.html">ubiquitousse</a></td>
<td class="summary">Ubiquitousse main module.</td>
</tr>
<tr>
<td class="name" nowrap><a href="modules/ldtk.html">ldtk</a></td>
<td class="summary"><a href="https://ldtk.io/">LDtk</a> level importer for LÖVE.</td>
</tr>
<tr>
<td class="name" nowrap><a href="modules/ecs.html">ecs</a></td>
<td class="summary">ECS (entity compenent system) library</p>
<p> Entity Component System library, inspired by the excellent tiny-ecs.</td>
</tr>
<tr>
<td class="name" nowrap><a href="modules/asset.html">asset</a></td>
<td class="summary">Asset manager.</td>
</tr>
</table>
<h2>Topics</h2>
<table class="module_list">
@ -78,7 +90,7 @@
</div> <!-- id="main" -->
<div id="about">
<i>generated by <a href="http://github.com/stevedonovan/LDoc">LDoc 1.4.6</a></i>
<i style="float:right;">Last updated 2021-12-24 23:49:41 </i>
<i style="float:right;">Last updated 2021-12-25 17:06:47 </i>
</div> <!-- id="about" -->
</div> <!-- id="container" -->
</body>

311
doc/ldoc_fixed.css
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@ -1,311 +0,0 @@
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Code licensed under the BSD License:
http://developer.yahoo.com/yui/license.html
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@ -0,0 +1,313 @@
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<head>
<title>Ubiquitousse reference</title>
<link rel="stylesheet" href="../ldoc_new.css" type="text/css" />
</head>
<body>
<div id="container">
<div id="product">
<div id="product_logo"></div>
<div id="product_name"><big><b></b></big></div>
<div id="product_description"></div>
</div> <!-- id="product" -->
<div id="main">
<!-- Menu -->
<div id="navigation">
<br/>
<h1>Ubiquitousse</h1>
<ul>
<li><a href="../index.html">Index</a></li>
</ul>
<h2>Contents</h2>
<ul>
<li><a href="#Functions">Functions</a></li>
<li><a href="#Asset_objects">Asset objects </a></li>
</ul>
<h2>Modules</h2>
<ul class="nowrap">
<li><a href="../modules/ubiquitousse.html">ubiquitousse</a></li>
<li><a href="../modules/ldtk.html">ldtk</a></li>
<li><a href="../modules/ecs.html">ecs</a></li>
<li><strong>asset</strong></li>
</ul>
<h2>Topics</h2>
<ul class="">
<li><a href="../topics/README.md.html">README</a></li>
<li><a href="../topics/LICENSE.html">LICENSE</a></li>
</ul>
</div>
<div id="content">
<h1>Module <code>asset</code></h1>
<p>Asset manager.</p>
<p> Loads asset and cache them.</p>
<p> This only provides a streamlined way to handle asset, and doesn&rsquo;t handle the actual file loading/object creation itself; you are expected to provide your own asset loaders.</p>
<p> See the <a href="../modules/asset.html#Asset:__call">Asset:__call</a> method for more details on how assets are loaded. Hopefully this will allow you to use asset which are more game-specific than &ldquo;image&rdquo; or &ldquo;audio&rdquo;.</p>
<p> No dependencies.</p>
<h2><a href="#Functions">Functions</a></h2>
<table class="function_list">
<tr>
<td class="name" nowrap><a href="#new">new (directory, loaders[, mode="auto"])</a></td>
<td class="summary">Create a new asset manager.</td>
</tr>
</table>
<h2><a href="#Asset_objects">Asset objects </a></h2>
<table class="function_list">
<tr>
<td class="name" nowrap><a href="#Asset.prefix">Asset.prefix</a></td>
<td class="summary">A prefix for asset names.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#Asset.cache">Asset.cache</a></td>
<td class="summary">The asset cache.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#Asset.loaders">Asset.loaders</a></td>
<td class="summary">The loaders table.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#Asset:__call">Asset:__call (assetName, ...)</a></td>
<td class="summary">Load (and cache) an asset.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#Asset:load">Asset:load (list)</a></td>
<td class="summary">Preload a list of assets.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#Asset:clear">Asset:clear ()</a></td>
<td class="summary">Allow loaded assets to be garbage collected.</td>
</tr>
</table>
<br/>
<br/>
<h2 class="section-header "><a name="Functions"></a>Functions</h2>
<dl class="function">
<dt>
<a name = "new"></a>
<strong>new (directory, loaders[, mode="auto"])</strong>
</dt>
<dd>
Create a new asset manager. </p>
<p> If the caching &ldquo;mode&rdquo; is set to auto (default), the asset manager will allow assets to be automaticaly garbage collected by Lua.</p>
<p> If set to &ldquo;manual&rdquo;, the assets will not be garbage collected unless the clear method is called.
&ldquo;manual&rdquo; mode is useful if you have assets that are particularly slow to load and you want full control on when they are loaded and unloaded (typically a loading screen).
</ul>
</ul>
</ul>
</ul>
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">directory</span>
<span class="types"><a class="type" href="https://www.lua.org/manual/5.1/manual.html#5.4">string</a></span>
the directory in which the assets will be loaded
</li>
<li><span class="parameter">loaders</span>
<span class="types"><a class="type" href="https://www.lua.org/manual/5.1/manual.html#5.5">table</a></span>
loaders table: {prefix = function, &hellip;}
</li>
<li><span class="parameter">mode</span>
<span class="types"><a class="type" href="https://www.lua.org/manual/5.1/manual.html#5.4">string</a></span>
caching mode
(<em>default</em> "auto")
</li>
</ul>
<h3>Returns:</h3>
<ol>
<span class="types"><a class="type" href="../modules/asset.html#Asset_objects">Asset</a></span>
the new asset manager
</ol>
</dd>
</dl>
<h2 class="section-header has-description"><a name="Asset_objects"></a>Asset objects </h2>
<div class="section-description">
Asset manager.
</div>
<dl class="function">
<dt>
<a name = "Asset.prefix"></a>
<strong>Asset.prefix</strong>
</dt>
<dd>
A prefix for asset names.
</ul>
<h3>Type:</h3>
<ul>
<code>string</code>
</ul>
</ul>
</ul>
</dd>
<dt>
<a name = "Asset.cache"></a>
<strong>Asset.cache</strong>
</dt>
<dd>
The asset cache. Each cached asset is indexed with a string key &ldquo;type.assetName&rdquo;.
</ul>
<h3>Type:</h3>
<ul>
<code>table</code> {["assetName"]=asset}
</ul>
</ul>
</ul>
</dd>
<dt>
<a name = "Asset.loaders"></a>
<strong>Asset.loaders</strong>
</dt>
<dd>
The loaders table.
</ul>
<h3>Type:</h3>
<ul>
<code>table</code> {["prefix"]=function, ...}
</ul>
</ul>
</ul>
</dd>
<dt>
<a name = "Asset:__call"></a>
<strong>Asset:__call (assetName, ...)</strong>
</dt>
<dd>
<p>Load (and cache) an asset. </p>
<p> Asset name are similar to Lua module names (directory separator is the dot . and no extention should be specified).
To load an asset, ubiquitousse will try every loaders in the loader list with a name that prefix the asset name.
The first value returned will be used as the asset value.</p>
<p> Loaders are called with the arguments:</p>
<ul>
<li>path: the asset full path, except extension</li>
<li>&hellip;: other arguments given after the asset name. Can only be number and strings.</li>
</ul>
</ul>
</ul>
</ul>
</ul>
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">assetName</span>
<span class="types"><a class="type" href="https://www.lua.org/manual/5.1/manual.html#5.4">string</a></span>
string the asset&rsquo;s full name
</li>
<li><span class="parameter">...</span>
<span class="types"><span class="type">number/string</span></span>
other arguments for the asset loader
</li>
</ul>
<h3>Returns:</h3>
<ol>
the asset
</ol>
<h3>Usage:</h3>
<ul>
<pre class="example"><span class="keyword">local</span> image = asset(<span class="string">"image.example"</span>)</pre>
</ul>
</dd>
<dt>
<a name = "Asset:load"></a>
<strong>Asset:load (list)</strong>
</dt>
<dd>
Preload a list of assets.
</ul>
</ul>
</ul>
</ul>
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">list</span>
<span class="types"><span class="type">{"asset1",...}</span></span>
list of assets to load
</li>
</ul>
</dd>
<dt>
<a name = "Asset:clear"></a>
<strong>Asset:clear ()</strong>
</dt>
<dd>
Allow loaded assets to be garbage collected.
Only useful if the caching mode is set to &ldquo;manual&rdquo; duritng creation.
</ul>
</ul>
</ul>
</ul>
</dd>
</dl>
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<i>generated by <a href="http://github.com/stevedonovan/LDoc">LDoc 1.4.6</a></i>
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@ -4,7 +4,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<head>
<title>Ubiquitousse reference</title>
<link rel="stylesheet" href="../ldoc_fixed.css" type="text/css" />
<link rel="stylesheet" href="../ldoc_new.css" type="text/css" />
</head>
<body>
@ -31,24 +31,18 @@
<li><a href="../index.html">Index</a></li>
</ul>
<h2>Fields</h2>
<ul class="nowrap">
<li><a href="#version">version</a></li>
<li><a href="#asset">asset</a></li>
<li><a href="#ecs">ecs</a></li>
<li><a href="#input">input</a></li>
<li><a href="#ldtk">ldtk</a></li>
<li><a href="#scene">scene</a></li>
<li><a href="#signal">signal</a></li>
<li><a href="#timer">timer</a></li>
<li><a href="#util">util</a></li>
<h2>Contents</h2>
<ul>
<li><a href="#Fields">Fields</a></li>
</ul>
<h2>Modules</h2>
<ul class="nowrap">
<li><strong>init</strong></li>
<li><strong>ubiquitousse</strong></li>
<li><a href="../modules/ldtk.html">ldtk</a></li>
<li><a href="../modules/ecs.html">ecs</a></li>
<li><a href="../modules/asset.html">asset</a></li>
</ul>
<h2>Topics</h2>
<ul class="">
@ -60,7 +54,7 @@
<div id="content">
<h1>Module <code>init</code></h1>
<h1>Module <code>ubiquitousse</code></h1>
<p>Ubiquitousse main module.</p>
<p> Set of various Lua libraries to make game development easier, mainly made to be used alongside the <a href="https://love2d.org/">LÖVE</a> game framework.
Nothing that hasn&rsquo;t been done before, but these are tailored to what I need. They can be used independently too, and are relatively portable, even without LÖVE.</p>
@ -118,6 +112,49 @@
</ul>
<h2><a href="#Fields">Fields</a></h2>
<table class="function_list">
<tr>
<td class="name" nowrap><a href="#version">version</a></td>
<td class="summary">Ubiquitousse version string (currently <code>&quot;0.1.0&quot;</code>).</td>
</tr>
<tr>
<td class="name" nowrap><a href="#asset">asset</a></td>
<td class="summary">Asset manager module, if available.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#ecs">ecs</a></td>
<td class="summary">Entity Component System, if available.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#input">input</a></td>
<td class="summary">Input management, if available.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#ldtk">ldtk</a></td>
<td class="summary">LDtk level import, if available.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#scene">scene</a></td>
<td class="summary">Scene management, if available.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#signal">signal</a></td>
<td class="summary">Signal management, if available.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#timer">timer</a></td>
<td class="summary">Timer utilities, if available.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#util">util</a></td>
<td class="summary">Various useful functions, if available.</td>
</tr>
</table>
<br/>
<br/>
<h2 class="section-header "><a name="Fields"></a>Fields</h2>
@ -130,6 +167,9 @@
Ubiquitousse version string (currently <code>&quot;0.1.0&quot;</code>).
</ul>
</ul>
</ul>
</ul>
@ -145,13 +185,16 @@
Asset manager module, if available.
</ul>
</ul>
</ul>
</ul>
<h3>See also:</h3>
<ul>
<a href="../modules/init.html#asset">asset</a>
<a href="../modules/asset.html#">asset</a>
</ul>
@ -164,13 +207,16 @@
Entity Component System, if available.
</ul>
</ul>
</ul>
</ul>
<h3>See also:</h3>
<ul>
<a href="../modules/init.html#ecs">ecs</a>
<a href="../modules/ecs.html#">ecs</a>
</ul>
@ -183,13 +229,16 @@
Input management, if available.
</ul>
</ul>
</ul>
</ul>
<h3>See also:</h3>
<ul>
<a href="../modules/init.html#input">input</a>
<a href="../modules/ubiquitousse.html#input">input</a>
</ul>
@ -202,6 +251,9 @@
LDtk level import, if available.
</ul>
</ul>
</ul>
</ul>
@ -221,13 +273,16 @@
Scene management, if available.
</ul>
</ul>
</ul>
</ul>
<h3>See also:</h3>
<ul>
<a href="../modules/init.html#scene">scene</a>
<a href="../modules/ubiquitousse.html#scene">scene</a>
</ul>
@ -240,13 +295,16 @@
Signal management, if available.
</ul>
</ul>
</ul>
</ul>
<h3>See also:</h3>
<ul>
<a href="../modules/init.html#signal">signal</a>
<a href="../modules/ubiquitousse.html#signal">signal</a>
</ul>
@ -259,13 +317,16 @@
Timer utilities, if available.
</ul>
</ul>
</ul>
</ul>
<h3>See also:</h3>
<ul>
<a href="../modules/init.html#timer">timer</a>
<a href="../modules/ubiquitousse.html#timer">timer</a>
</ul>
@ -278,13 +339,16 @@
Various useful functions, if available.
</ul>
</ul>
</ul>
</ul>
<h3>See also:</h3>
<ul>
<a href="../modules/init.html#util">util</a>
<a href="../modules/ubiquitousse.html#util">util</a>
</ul>
@ -296,7 +360,7 @@
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<body>
@ -40,8 +40,10 @@
</ul>
<h2>Modules</h2>
<ul class="nowrap">
<li><a href="../modules/init.html">init</a></li>
<li><a href="../modules/ubiquitousse.html">ubiquitousse</a></li>
<li><a href="../modules/ldtk.html">ldtk</a></li>
<li><a href="../modules/ecs.html">ecs</a></li>
<li><a href="../modules/asset.html">asset</a></li>
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@ -58,7 +60,7 @@
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@ -40,8 +40,10 @@
</ul>
<h2>Modules</h2>
<ul class="nowrap">
<li><a href="../modules/init.html">init</a></li>
<li><a href="../modules/ubiquitousse.html">ubiquitousse</a></li>
<li><a href="../modules/ldtk.html">ldtk</a></li>
<li><a href="../modules/ecs.html">ecs</a></li>
<li><a href="../modules/asset.html">asset</a></li>
</ul>
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@ -63,7 +65,7 @@
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--- ubiquitousse.ecs
-- Optional dependency: ubiquitousse.scene, to allow quick creation of ECS-based scenes.
local loaded, scene = pcall(require, (...):match("^(.-)ecs").."scene")
if not loaded then scene = nil end
--- Entity Component System library, inspired by the excellent tiny-ecs. Main differences include:
--- ECS (entity compenent system) library
--
-- Entity Component System library, inspired by the excellent tiny-ecs. Main differences include:
--
-- * ability to nest systems;
-- * instanciation of systems for each world (no shared state);
-- * adding and removing entities is done instantaneously
-- * ability to add and remove components from entities after they were added to the world.
--
-- No mandatory dependency.
-- Optional dependency: `ubiquitousse.scene`, to allow quick creation of ECS-based scenes.
--
-- The module returns a table that contains several functions, `world` or `scene` are starting points
-- to create your world.
--
-- @module ecs
-- @usage TODO
local loaded, scene = pcall(require, (...):match("^(.-)ecs").."scene")
if not loaded then scene = nil end
let ecs
-- TODO: Implement a skip list for faster search.
-- better control over system order: process, draw, methods? (for lag reasons and dependencies)
-- more generic events?
-- TODO: :reorder (like refresh but update order)
-- TODO: clarify documentation on entity tables and instanciated system table
--- Entity table.
-- TODO
-- @section Entity
--- Entity system table.
-- @doc entity
--- @table entity
-- @field .. d
--- Recursively remove subsystems from a system.
let recDestroySystems = (system)
for i=#system.systems, 1, -1 do
@ -63,106 +87,193 @@ let copy = (a, b)
end
--- System fields and methods.
--
-- When they are added to a world, a new, per-world self table is created and used for every method call (which we call "instancied system").
-- Instancied systems can be retrieved in system.s or system.systems.
-- Oh, the "world" is just the top-level system, behaving in exactly the same way as other systems.
-- Every field defined below is optional unless written otherwise.
-- Instancied systems can be retrieved in `system.s` or `system.systems`.
--
-- The "world" is just the top-level system, behaving in exactly the same way as other systems.
--
-- Every field defined below is optional and can be accessed or redefined at any time, unless written otherwise. Though you would typically set them
-- when creating your system.
-- @type System
let system_mt = {
--- Read-only after creation system options ---
-- I mean, you can try to change them afterwards. But, heh.
--- Modifiable fields
-- @doc modifiable
--- Name of the system.
-- Used to create a field with the system's name in world.s and into each entity (the "entity's system table").
-- Used to create a field with the system's name in `world.s` and into each entity (the "entity's system table") that's in this system.
-- If not set, the entity will not have a system table.
--
-- Do not change after system instanciation.
-- @ftype string
-- @ftype nil if no name
name = nil,
--- List of subsystems.
-- On a instancied system, this is a list of the same subsystems, but instancied for this world.
--
-- Do not change after system instanciation.
-- @ftype table
-- @ftype nil if no subsystem
systems = nil,
--- Modifiable system options ---
--- Returns true if the entity should be added to this system (and therefore its subsystems).
-- If this is a string or a table, it will be converted to a filter function on instanciation using ecs.any.
-- If this true, will accept every entity; if false, reject every entity.
-- Will only test entities when they are added; changing this after system creation will not affect entities already in the system.
-- By default, rejects everything.
filter = :(e) return false end,
--- Returns true if e1 <= e2. e1 and e2 are two entities.
-- Used to place the entity in the sorted entity list when it is added; changing this after system creation
-- will not change the order of entities already in the system.
compare = :(e1, e2) return true end,
--- Called when adding an entity to the system. s is the entity's system table.
onAdd = :(s) end,
--- Called when removing an entity from the system. s is the entity's system table.
onRemove = :(s) end,
--- Called when the system is instancied, before any call to :onAddToWorld (including other systems in the world).
onInstance = :() end,
--- Called when the system is added to a world.
onAddToWorld = :(world) end,
--- Called when the system is removed from a world (i.e., the world is destroyed).
onRemoveFromWorld = :(world) end,
--- Called when the world is destroyed, after every call to :onRemoveFromWorld (including other systems in the world).
onDestroy = :() end,
--- Called when updating the system.
onUpdate = :(dt) end,
--- Called when drawing the system.
onDraw = :() end,
--- Called when updating the system, for every entity the system contains. Called after :onUpdate was called on the system. s is the entity's system table.
process = :(s, dt) end,
--- Called when drawing the system, for every entity the system contains. Called after :onDraw was called on the system. s is the entity's system table.
render = :(s) end,
--- If not false, the system will only update every interval seconds.
-- `false` by default.
-- @ftype number interval of time between each update
-- @ftype false to disable
interval = false,
--- The system and its susbsystems will only update if this is true.
-- `true` by default.
-- @ftype boolean
active = true,
--- The system and its subsystems will only draw if this is true.
-- `true` by default.
-- @ftype boolean
visible = true,
--- Defaults value to put into the entities's system table when they are added. Will recursively fill missing values.
-- When an entity is added to a system, a .entity field is always set in the system table, referring to the full entity table.
--
-- When an entity is added to a system, a `.entity` field is always set in the system table, referring to the full entity table.
--
-- Changing this will not affect entities already in the system.
-- @ftype table
-- @ftype nil if no default
default = nil,
--- Defaults methods to assign to the entities's system table when they are added.
-- When calling the methods with entity.systemName:method(...), the method will actually receive the
-- arguments method(system, system table, ...). Methamethods are accepted. New methods can be
--
-- When calling the methods with `entity.systemName:method(...)`, the method will actually receive the
-- arguments method(system, `system table, ...)`. Methamethods are accepted. New methods can be
-- created anytime.
-- @ftype table
-- @ftype nil if no methods
methods = nil,
--- Read-only system options ---
--- Callbacks.
--
-- Functions that are called when something happens in the system.
-- Redefine them to change system behaviour.
-- @doc callbacks
--- Called when checking if an entity should be added to this system.
-- Returns true if the entity should be added to this system (and therefore its subsystems).
--
-- If this is a string or a table, it will be converted to a filter function on instanciation using ecs.any.
--
-- If this true, will accept every entity; if false, reject every entity.
--
-- Will only test entities when they are added; changing this after system creation will not affect entities already in the system.
--
-- By default, rejects everything.
-- @callback
-- @tparam table e entity table to check
-- @treturn boolean true if entity should be added
filter = :(e) return false end,
--- Called when adding an entity to this system determining its order.
-- Returns true if e1 <= e2. e1 and e2 are two entities.
--
-- Used to place the entity in the sorted entity list when it is added; changing this after system creation
-- will not change the order of entities already in the system.
--
-- By default, entities are in the same order they were inserted.
-- @callback
-- @tparam table e1 entity table to check for inferiority
-- @tparam table e2 entity table to check for superiority
-- @treturn boolean true if e1 <= e2
compare = :(e1, e2) return true end,
--- Called when adding an entity to the system.
-- @callback
-- @tparam table s the entity's system table
onAdd = :(s) end,
--- Called when removing an entity from the system.
-- @callback
-- @tparam table s the entity's system table
onRemove = :(s) end,
--- Called when the system is instancied, before any call to `System:onAddToWorld` (including other systems in the world).
-- @callback
onInstance = :() end,
--- Called when the system is added to a world.
-- @callback
-- @tparam System world world system
onAddToWorld = :(world) end,
--- Called when the system is removed from a world (i.e., the world is destroyed).
-- @callback
-- @tparam System world world system
onRemoveFromWorld = :(world) end,
--- Called when the world is destroyed, after every call to `System:onRemoveFromWorld` (including other systems in the world).
-- @callback
onDestroy = :() end,
--- Called when updating the system.
-- @callback
-- @number dt delta-time since last update
onUpdate = :(dt) end,
--- Called when drawing the system.
-- @callback
onDraw = :() end,
--- Called when updating the system, for every entity the system contains. Called after `System:onUpdate` was called on the system.
-- @callback
-- @tparam table s the entity's system table
-- @number dt delta-time since last update
process = :(s, dt) end,
--- Called when drawing the system, for every entity the system contains. Called after `System:onDraw` was called on the system.
-- @callback
-- @tparam table s the entity's system table
render = :(s) end,
--- Read-only fields
-- @doc ro
--- The world the system belongs to.
-- @ftype System world
-- @ro
world = nil,
--- Number of entities in the system.
-- @ftype integer
-- @ro
entityCount = 0,
--- Map of named systems in the world (not only subsystems). Same for every system from the same world.
--- Map of all named systems in the world (not only subsystems). Same for every system from the same world.
-- @ftype table {[system.name]=instanciedSystem, ...}
-- @ro
s = nil,
--- Private fields ---
--- First element of the linked list of entities: { entity, next_element }.
-- @local
_first = nil,
--- Associative map of entities in the system and their previous linked list element (or true if first element).
-- This make the list effectively a doubly linked list, but with easy access to the previous element using this map (and therefore O(1) deletion).
-- @local
_previous = nil,
--- Amount of time waited since last update (if interval is set).
-- @local
_waited = 0,
--- Metatable of entities' system table.
-- Contains the methods defined in the methods field, wrapped to be called with the correct arguments, as well as a
-- __index field (if not redefined in methods).
-- @local
_methods_mt = nil,
--- Methods ---
--- Methods.
--
-- Methods available on instancied system table.
-- @doc smethods
--- Add entities to the system and its subsystems.
--
-- Will skip entities that are already in the system.
--
-- Entities are added to subsystems after they were succesfully added to their parent system.
--
-- If this is called on a subsystem instead of the world, be warned that this will bypass all the parent's systems filters.
-- Since :remove will not search for entities in systems where they should have been filtered out, the added entities will not be removed
-- when calling :remove on a parent system or the world. The entity can be removed by calling :remove on the system :add was called on.
--
-- Since `System:remove` will not search for entities in systems where they should have been filtered out, the added entities will not be removed
-- when calling :remove on a parent system or the world. The entity can be removed by calling `System:remove` on the system `System:add` was called on.
--
-- Complexity: O(1) per unordered system, O(entityCount) per ordered system.
-- @tparam table e entity to add
-- @tparam table... ... other entities to add
-- @treturn e,... the function arguments
add = :(e, ...)
if e ~= nil and not @_previous[e] and @filter(e) then
-- setup entity
@ -213,9 +324,14 @@ let system_mt = {
end
end,
--- Refresh an entity's systems.
-- Behave similarly to :add, but if the entity is already in the system, instead of skipping it, it
--
-- Behave similarly to `System:add`, but if the entity is already in the system, instead of skipping it, it
-- will check for new and removed components and add and remove from (sub)systems accordingly.
--
-- Complexity: O(1) per system + add/remove complexity.
-- @tparam table e entity to refresh
-- @tparam table... ... other entities to refresh
-- @treturn e,... the function arguments
refresh = :(e, ...)
if e ~= nil then
if not @_previous[e] then
@ -237,11 +353,19 @@ let system_mt = {
end
end,
--- Remove entities to the system and its subsystems.
--
-- Will skip entities that are not in the system.
--
-- Entities are removed from subsystems before they are removed from their parent system.
-- If you intend to call this on a subsystem instead of the world, please read the warning in :add.
--
-- If you intend to call this on a subsystem instead of the world, please read the warning in `System:add`.
--
-- Returns all removed entities.
--
-- Complexity: O(1) per system.
-- @tparam table e entity to remove
-- @tparam table... ... other entities to remove
-- @treturn e,... the function arguments
remove = :(e, ...)
if e ~= nil then
if @_previous[e] then
@ -277,7 +401,11 @@ let system_mt = {
end
end,
--- Returns true if every entity is in the system.
--
-- Complexity: O(1).
-- @tparam table e entity that may be in the system
-- @tparam table... ... other entities that may be in the system
-- @treturn boolean true if every entity is in the system
has = :(e, ...)
let has = e == nil or not not @_previous[e]
if ... then
@ -287,6 +415,7 @@ let system_mt = {
end
end,
--- Returns an iterator that iterate through the entties in this system.
-- @treturn iterator iterator over the entities in this system, in order
iter = :()
return nextEntity, { @_first }
end,
@ -300,7 +429,9 @@ let system_mt = {
end
end,
--- Try to update the system and its subsystems. Should be called on every game update.
--
-- Subsystems are updated after their parent system.
-- @number dt delta-time since last update
update = :(dt)
if @active then
if @interval then
@ -324,6 +455,7 @@ let system_mt = {
end
end,
--- Try to draw the system and its subsystems. Should be called on every game draw.
--
-- Subsystems are drawn after their parent system.
draw = :()
if @visible then
@ -419,9 +551,12 @@ let recCallOnAddToWorld = (world, systems)
end
--- ECS module.
-- @section end
ecs = {
--- Create and returns a world system based on a list of systems.
-- The systems will be instancied for this world.
-- @tparam table,... ... list of (uninstancied) system tables
-- @treturn System the world system
world = (...)
let world = setmetatable({
filter = ecs.all(),
@ -435,6 +570,8 @@ ecs = {
end,
--- Returns a filter that returns true if, for every argument, a field with the same name exists in the entity.
-- @tparam string,... ... list of field names that must be in entity
-- @treturn function(e) that returns true if e has all the fields
all = (...)
if ... then
let l = {...}
@ -452,6 +589,8 @@ ecs = {
end,
--- Returns a filter that returns true if one of the arguments if the name of a field in the entity.
-- @tparam string,... ... list of field names that may be in entity
-- @treturn function(e) that returns true if e has at leats one of the fields
any = (...)
if ... then
let l = {...}
@ -468,7 +607,12 @@ ecs = {
end
end,
--- If uqt.scene is available, returns a new scene that will consist of a ECS world with the specified systems and entities.
--- If `uqt.scene` is available, returns a new scene that will consist of a ECS world with the specified systems and entities.
-- @require ubiquitousse.scene
-- @string name the name of the new scene
-- @tparam[opt={}] table systems list of systems to add to the world
-- @tparam[opt={}] table entities list of entities to add to the world
-- @treturn scene the new scene
scene = (name, systems={}, entities={})
assert(scene, "ubiquitousse.scene unavailable")
let s = scene.new(name)

1
init.lua
View file

@ -45,6 +45,7 @@
-- *UPDATE*: I give up, currently in the process of admitting defat to LDoc and progressively porting all my documentation to it.
-- Though I had to modify a few things to get LDoc to like me, so the documentation is generated using [my LDoc fork](https://github.com/Reuh/LDoc).
--
-- @module ubiquitousse
-- @usage local ubiquitousse = require("ubiquitousse")
local p = ... -- require path

17
ldtk/ldtk.can
View file

@ -3,7 +3,7 @@
--
-- Every unit is in pixel in the API unless written otherwise.
--
-- This modules returns a single function @{LDtk}(path).
-- This modules returns a single function, @{LDtk}(path).
--
-- Requires LÖVE `love.graphics` (drawing Image, SpriteBatch, Quad).
--
@ -12,16 +12,18 @@
-- @usage
-- local ldtk = require("ubiquitousse.ldtk")
--
-- -- load ldtk project file
-- local project = ltdk("example.ldtk")
--
-- -- can define callbacks when loading: for example to setup entities defined in LDtk
-- local callbacks = {
-- onAddEntity = function(entity)
-- -- handle entity...
-- end
-- }
--
-- -- load every level
-- for _, lvl in ipairs(project.levels) do lvl:load() end
-- -- load every level, with callbacks
-- for _, lvl in ipairs(project.levels) do lvl:load(callbacks) end
--
-- function love.draw()
-- -- draw every level
@ -412,7 +414,7 @@ let level_mt = {
-- These callbacks should allow you to capture all the important elements needed to use the level, so you can hopefully
-- integrate it into your current game engine easily.
--
-- @tab[opt] callbacks
-- @tparam[opt] table callbacks
-- @require love
load = :(callbacks={})
assert(@loaded == false, "level already loaded")
@ -454,7 +456,7 @@ let level_mt = {
-- * `onAddIntTile(tile)` will be called for every new IntGrid tile unloaded, with the @{IntTile} as sole argument
-- * `onAddEntity(entity)` will be called for every new entity unloaded, with the @{Entity} as sole argument
--
-- @tab[opt] callbacks
-- @tparam[opt] table callbacks
unload = :(callbacks={})
assert(@loaded == true, "level not loaded")
let onRemoveLayer = callbacks.onRemoveLayer
@ -581,11 +583,12 @@ let project_mt = {
project_mt.__index = project_mt
--- Custom fields.
-- TODO
-- @section fields
--- Module.
--- LDtk module.
-- `ubiquitousse.ldtk` returns a single function, @{LDtk}.
-- @section module
-- @section end
--- Load a LDtk project.
-- @string path to LDtk project file (.ldtk)