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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>boxbox</title>
<script src="prettify.js"></script>
<meta name="viewport" content="width=device-width,initial-scale=1">
<link rel="stylesheet" href="prettify.css">
<style>
body {
padding: 0;
margin: 1em 1em 0;
font-family: sans-serif;
line-height: 1.4em;
}
a:link {
color: #000498;
}
a:visited {
color: black;
}
a:hover {
color: #4549ff;
}
a:active {
color: black;
}
header {
margin: 0 0 1em;
}
header a {
text-decoration: none;
}
header h1 {
margin: 1em 0;
}
section {
padding: .5em 1em;
margin: 1em;
border-width: 3px;
border-style: solid;
border-color: #e2e3ec;
}
h1, h2, h3 {
margin: 6px 0 .6em;
font-family: serif;
}
h1 {
font-size: 1.6em;
}
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font-size: 1.4em;
margin: .4em 0 .8em;
}
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font-size: 1.2em;
}
p {
margin: .5em 0;
}
ul {
margin: 0;
}
.description {
margin: .5em 0;
}
#content {
margin: 0 auto;
max-width: 800px;
}
nav {
padding: .3em;
}
nav.compact {
line-height: 2em;
background-color: #e2e3ec;
}
nav ul {
padding: 2px 7px;
list-style-type: none;
}
nav.compact ul {
background-color: transparent;
}
nav.compact ul li {
font-weight: bold;
}
.inlineIndexItem {
padding: .3em .2em;
background-color: white;
}
footer {
text-align: center;
padding: .5em 0;
color: #858585;
}
footer a:link, footer a:visited {
color: #5b5c88;
}
code {
background-color: #eee;
display: block;
font-family: monospace;
white-space: pre;
margin: .7em;
padding: .3em .5em;
color: #1f1f1f;
}
ul.properties {
list-style-type: none;
padding: 0 0 0 1em;
}
ul.properties li {
margin: .3em 0;
}
.property {
font-weight: bold;
font-family: serif;
font-size: 1.2em;
}
.depth0 {
margin: 1em 0em;
border-color: #B2B3BB;
border-width: 4px;
}
.depth1 {
margin: 1em 0 1em 1em;
border-color: #CECFD7;
}
.depth2 {
margin: 1em 0 1em 2em;
}
.depth3 {
margin: 1em 0 1em 3em;
}
</style>
<link rel="stylesheet" href="updoc-custom.css"></style>
</head>
<body>
<div id="content">
<header>
<h1>
<a href=".">
boxbox
</a>
</h2>
api documentation
</header>
<nav class="compact">
<ul>
<li>
<a href="#name-boxbox" class="">boxbox</a>
</li>
<a href="#name-createWorld" class="inlineIndexItem">createWorld</a>
<li>
<a href="#name-Entity" class="">Entity</a>
</li>
<a href="#name-applyImpulse" class="inlineIndexItem">applyImpulse</a>
<a href="#name-canvasPosition" class="inlineIndexItem">canvasPosition</a>
<a href="#name-clearForce" class="inlineIndexItem">clearForce</a>
<a href="#name-clearVelocity" class="inlineIndexItem">clearVelocity</a>
<a href="#name-destroy" class="inlineIndexItem">destroy</a>
<a href="#name-friction" class="inlineIndexItem">friction</a>
<a href="#name-name" class="inlineIndexItem">name</a>
<a href="#name-onFinishContact" class="inlineIndexItem">onFinishContact</a>
<a href="#name-onImpact" class="inlineIndexItem">onImpact</a>
<a href="#name-onKeydown" class="inlineIndexItem">onKeydown</a>
<a href="#name-onKeyup" class="inlineIndexItem">onKeyup</a>
<a href="#name-onRender" class="inlineIndexItem">onRender</a>
<a href="#name-onStartContact" class="inlineIndexItem">onStartContact</a>
<a href="#name-onTick" class="inlineIndexItem">onTick</a>
<a href="#name-position" class="inlineIndexItem">position</a>
<a href="#name-rotation" class="inlineIndexItem">rotation</a>
<a href="#name-setForce" class="inlineIndexItem">setForce</a>
<a href="#name-setVelocity" class="inlineIndexItem">setVelocity</a>
<a href="#name-sprite" class="inlineIndexItem">sprite</a>
<li>
<a href="#name-World" class="">World</a>
</li>
<a href="#name-camera" class="inlineIndexItem">camera</a>
<a href="#name-canvasPositionAt" class="inlineIndexItem">canvasPositionAt</a>
<a href="#name-createEntity" class="inlineIndexItem">createEntity</a>
<a href="#name-createJoint" class="inlineIndexItem">createJoint</a>
<a href="#name-find" class="inlineIndexItem">find</a>
<a href="#name-gravity" class="inlineIndexItem">gravity</a>
<a href="#name-onRender" class="inlineIndexItem">onRender</a>
<a href="#name-onTick" class="inlineIndexItem">onTick</a>
<a href="#name-scale" class="inlineIndexItem">scale</a>
<a href="#name-unbindOnRender" class="inlineIndexItem">unbindOnRender</a>
<a href="#name-unbindOnTick" class="inlineIndexItem">unbindOnTick</a>
</ul>
</nav>
<div id="sections">
<section class="depth1 header" data-module="boxbox">
<h2 id="name-boxbox">
boxbox
</h2>
<ul class="properties">
</ul>
<div class="description">global boxbox object</div>
</section>
<section class="depth2 header" data-module="boxbox.createWorld">
<h2 id="name-createWorld">
.createWorld( canvas, options )
</h2>
<ul class="properties">
<li>
<span class="property">params</span>
<span>canvas, [options]</span>
</li>
<li>
<span class="property">canvas</span>
<span>element to render on</span>
</li>
<li>
<span class="property">options</span>
<span><ul></span>
</li>
<li>
<span class="property">gravity</span>
<span>(default {x:0, y:10}) can be horizontal, negative, etc</span>
</li>
<li>
<span class="property">allowSleep</span>
<span>(default true) bodies may sleep when they come to
rest. a sleeping body is no longer being simulated, which can
improve performance.</span>
</li>
<li>
<span class="property">scale</span>
<span>(default 30) scale for rendering in pixels / meter</span>
</li>
<li>
<span class="property">tickFrequency</span>
<span>(default 50) onTick events happen every tickFrequency milliseconds</span>
</li>
<li>
<span class="property">collisionOutlines</span>
<span>(default false) render outlines over everything for debugging collisions
</ul></span>
</li>
<li>
<span class="property">return</span>
<span>a new <a href="#name-World">World</a></span>
</li>
</ul>
<div class="description">without options
<code>var canvasElem = document.getElementById("myCanvas");
var world = boxbox.createWorld(canvasElem);</code>
with options
<code>var canvasElem = document.getElementById("myCanvas");
var world = boxbox.createWorld(canvasElem, {
gravity: {x: 0, y: 20},
scale: 60
});</code></div>
</section>
<section class="depth1 header" data-module="Entity">
<h2 id="name-Entity">
Entity
</h2>
<ul class="properties">
</ul>
<div class="description">a single physical object in the physics simulation</div>
</section>
<section class="depth2 header" data-module="entity.applyImpulse">
<h2 id="name-applyImpulse">
.applyImpulse( power, degrees )
</h2>
<ul class="properties">
<li>
<span class="property">power</span>
<span>of impulse</span>
</li>
<li>
<span class="property">degrees</span>
<span>direction of force. 0 is up, 90 is right, etc.</span>
</li>
</ul>
<div class="description">Apply an instantanious force on this Entity.
<br>
With this and all functions that take degrees, you can also provide
a vector.
<code>entity.applyImpulse(10, 45); // 45 degree angle
entity.applyImpulse(10, 1, -1); // the vector x=1 y=-1}</code></div>
</section>
<section class="depth2 header" data-module="entity.canvasPosition">
<h2 id="name-canvasPosition">
.canvasPosition( )
</h2>
<ul class="properties">
<li>
<span class="property">return</span>
<span>{x,y}</span>
</li>
</ul>
<div class="description">Get the Entity position in pixels. Useful for custom
rendering. Unlike <a href="#name-position">position</a> the result
is relative to the World's scale and camera position.</div>
</section>
<section class="depth2 header" data-module="entity.clearForce">
<h2 id="name-clearForce">
.clearForce( name )
</h2>
<ul class="properties">
</ul>
<div class="description">Stop the force with the given name.</div>
</section>
<section class="depth2 header" data-module="entity.clearVelocity">
<h2 id="name-clearVelocity">
.clearVelocity( name )
</h2>
<ul class="properties">
</ul>
<div class="description">Stop the constant velocity with the given name.</div>
</section>
<section class="depth2 header" data-module="entity.destroy">
<h2 id="name-destroy">
.destroy( )
</h2>
<ul class="properties">
</ul>
<div class="description">destroy this entity and remove it from the world</div>
</section>
<section class="depth2 header" data-module="entity.friction">
<h2 id="name-friction">
.friction( [value] )
</h2>
<ul class="properties">
<li>
<span class="property">value</span>
<span>number</span>
</li>
<li>
<span class="property">return</span>
<span>number</span>
</li>
</ul>
<div class="description">get or set entity friction</div>
</section>
<section class="depth2 header" data-module="entity.name">
<h2 id="name-name">
.name( [value] )
</h2>
<ul class="properties">
<li>
<span class="property">return</span>
<span>entity name</span>
</li>
</ul>
<div class="description">get or set entity name</div>
</section>
<section class="depth2 header" data-module="entity.onFinishContact">
<h2 id="name-onFinishContact">
.onFinishContact( callback )
</h2>
<ul class="properties">
<li>
<span class="property">callback</span>
<span>function( entity )
<ul></span>
</li>
<li>
<span class="property">entity</span>
<span>that contact ended with</span>
</li>