scrawl-canvas
Version:
Version 8.9.4 - 19 Nov 2022
115 lines (87 loc) • 5.12 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 001</title>
<link href="css/normalize.css" rel="stylesheet" />
<link href="css/tests.css" rel="stylesheet" />
<style>
.controls {
grid-template-columns: 1fr 2fr 1fr 2fr;
}
canvas {
margin: 0 auto;
}
</style>
</head>
<body>
<h1><a href="index.html">Scrawl-canvas v8</a> - Particles test 001</h1>
<h2>Emitter entity, and Particle World, basic functionality</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">World alpha decay</div>
<div class="green"><input class="controlItem" id="color-alpha" type="range" value="6" min="1" max="10" step="0.1" /></div>
<div class="green label">Maximum color</div>
<div class="green"><input class="controlItem" id="maxcolor-controller" type="color" value="#f0f8ff" /></div>
<div class="green label">Minimum color</div>
<div class="green"><input class="controlItem" id="mincolor-controller" type="color" value="#f0f8ff" /></div>
<div class="green label">Background color</div>
<div class="green"><input class="controlItem" id="background" type="color" value="#000040" /></div>
<div class="pink label">Include gravity</div>
<div class="pink">
<select class="controlItem" id="gravity">
<option value="no">false</option>
<option value="yes">true</option>
</select>
</div>
<div class="blue label">Generation rate (per sec)</div>
<div class="blue"><input class="controlItem" id="generationRate" type="range" value="60" 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="100" min="1" max="200" step="1" /></div>
<div class="lavender label">Lifespan (secs)</div>
<div class="lavender"><input class="controlItem" id="killAfterTime" type="range" value="5" min="0" max="10" step="0.1" /></div>
<div class="lavender label">Life variation (secs)</div>
<div class="lavender"><input class="controlItem" id="killAfterTimeVariation" type="range" value="0.1" min="0" max="5" step="0.1" /></div>
<div class="yellow label">Range - x</div>
<div class="yellow"><input class="controlItem" id="range_x" type="range" value="40" min="-80" max="80" step="1" /></div>
<div class="yellow label">Range from - x</div>
<div class="yellow"><input class="controlItem" id="rangefrom_x" type="range" value="-20" min="-80" max="80" step="1" /></div>
<div class="yellow label">Range - y</div>
<div class="yellow"><input class="controlItem" id="range_y" type="range" value="40" min="-80" max="80" step="1" /></div>
<div class="yellow label">Range from - y</div>
<div class="yellow"><input class="controlItem" id="rangefrom_y" type="range" value="-20" min="-80" max="80" step="1" /></div>
<div class="yellow label">Range - z</div>
<div class="yellow"><input class="controlItem" id="range_z" type="range" value="-1" min="-2" max="2" step="0.1" /></div>
<div class="yellow label">Range from - z</div>
<div class="yellow"><input class="controlItem" id="rangefrom_z" type="range" value="-0.2" min="-2" max="2" step="0.1" /></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>Add user-defined attributes to the particle world object - check that appropriate messages print </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 that particles respond to the gravity force, when applied (include gravity)</li>
<li>Check the effect of changing the world object's tickMultiplier (world speed) attribute</li>
<li>Change the maximum and minimum colors; check that the changes are reflected in the particle's colors (testing the Color range functionality)</li>
<li>Check the effects of changing the following emitter/particle attributes: historyLength; generationRate; killAfterTime; killAfterTimeVariation; lifespan; life variation; range (x, y, z); rangeFrom (x, y, z)</li>
<li>Check that the canvas backgroundColor attribute can be updated (background color)</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-001.html">Annotated code</a></p>
</div>
<script src="particles-001.js" type="module"></script>
</body>
</html>