scrawl-canvas
Version:
Version 8.9.4 - 19 Nov 2022
112 lines (87 loc) • 4.51 kB
HTML
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Demo Particles 002</title>
<link href="css/normalize.css" rel="stylesheet" />
<link href="css/tests.css" rel="stylesheet" />
<style>
.controls {
grid-template-columns: 1fr 2fr 1fr 2fr;
}
img {
display: none;
}
canvas {
margin: 0 auto;
}
</style>
</head>
<body>
<h1><a href="index.html">Scrawl-canvas v8</a> - Particles test 002</h1>
<h2>Emitter using artefacts</h2>
<div class="controls">
<div class="green label">World speed</div>
<div class="green"><input class="controlItem" id="world-speed" type="range" value="2" min="0.5" max="4" step="0.01" /></div>
<div class="green label">Opacity</div>
<div class="green"><input class="controlItem" id="opacity" type="range" value="0.2" min="0.01" max="1" step="0.01" /></div>
<div class="green label">Outline color</div>
<div class="green"><input class="controlItem" id="outline-color" type="color" value="#b9b5df" /></div>
<div class="green label">Background color</div>
<div class="green"><input class="controlItem" id="background" type="color" value="#000040" /></div>
<div class="green label">Minimum fill color</div>
<div class="green"><input class="controlItem" id="min-fill" type="color" value="#000000" /></div>
<div class="green label">Maximum fill color</div>
<div class="green"><input class="controlItem" id="max-fill" type="color" value="#ffffff" /></div>
<div class="blue label">Generation rate (per sec)</div>
<div class="blue"><input class="controlItem" id="generationRate" type="range" value="10" min="0" max="200" step="1" /></div>
<div class="blue label">History length</div>
<div class="blue"><input class="controlItem" id="historyLength" type="range" value="20" min="1" max="200" step="1" /></div>
<div class="blue label">Kill radius (px)</div>
<div class="blue"><input class="controlItem" id="kill-radius" type="range" value="50" min="5" max="100" step="1" /></div>
<div class="blue label">Kill radius variation (px)</div>
<div class="blue"><input class="controlItem" id="kill-radius-variation" type="range" value="0" min="0" max="100" step="1" /></div>
<div class="pink label">Artefact</div>
<div class="pink">
<select class="controlItem" id="artefact">
<option value="star">Star</option>
<option value="wheel">Wheel</option>
<option value="block">Block</option>
<option value="picture">Picture</option>
<option value="phrase">Phrase</option>
</select>
</div>
<div class="pink label"> </div>
<div class="pink"> </div>
</div>
<canvas
id="mycanvas"
width="600"
height="400"
data-scrawl-canvas
></canvas>
<p id="reportmessage"></p>
<div class="testinfo">
<h4>Test purpose</h4>
<ul>
<li>Create a particle world object</li>
<li>Create some Scrawl-canvas entitys which we can use with our Emitter entity</li>
<li>Create a particle Emitter entity</li>
<li>Check to see that the Emitter entity can lock to the mouse cursor</li>
<li>Check the effect of changing the world object's tickMultiplier (world speed) attribute</li>
<li>Check that particle color, and opacity appearance, can be controlled via the user-defined attributes in the world object (particle stroke color, minimum fill color, maximum fill color, opacity)</li>
<li>Check the effects of changing the following emitter/particle attributes: historyLength; generationRate</li>
<li>Confirm that particles comply with changes in the emitter's kill radius attributes</li>
<li>Check that the canvas backgroundColor attribute can be updated (background color)</li>
<li>Change the emitter's artefact; check that the update is immediate and impacts on all existing particles as well as new ones</li>
<li>Navigate away from the web page (open another tab in the browser) and, a few seconds later, navigate back to the page - check that the animation resets and starts, and does not freeze the page</li>
</ul>
<p><b>Touch test:</b> should work as expected</p>
<p><a href="../docs/demo/particles-002.html">Annotated code</a></p>
</div>
<script src="particles-002.js" type="module"></script>
<img id="bunny" src="img/bunny.png" />
</body>
</html>