@manufosela/animation-matrix
Matrix digital rain effect web component built with Lit 3 and Canvas API
Demo code (CodePen-ready HTML, CSS, JS)
HTML (html)
<h1>MATRIX DIGITAL RAIN</h1>
<div class="demo-container">
<div class="overlay-demo">
<animation-matrix id="mainMatrix" class="main-matrix"></animation-matrix>
<div class="overlay-content">
<h2>WAKE UP</h2>
<p>The Matrix has you...</p>
</div>
</div>
<div class="presets">
<button class="preset-btn" data-preset="classic">Classic Green</button>
<button class="preset-btn" data-preset="blue">Blue Pill</button>
<button class="preset-btn" data-preset="red">Red Pill</button>
<button class="preset-btn" data-preset="binary">Binary</button>
<button class="preset-btn" data-preset="emoji">Emoji Rain</button>
<button class="preset-btn" data-preset="numbers">Numbers Only</button>
</div>
<div class="controls">
<div class="control-group">
<label>Font Size: <span class="value" id="fontSizeValue">14</span>px</label>
<input type="range" id="fontSizeSlider" min="8" max="30" value="14" />
</div>
<div class="control-group">
<label>Speed: <span class="value" id="speedValue">1.0</span>x</label>
<input type="range" id="speedSlider" min="0.1" max="3" step="0.1" value="1" />
</div>
<div class="control-group">
<label>Density: <span class="value" id="densityValue">1.0</span></label>
<input type="range" id="densitySlider" min="0.3" max="2" step="0.1" value="1" />
</div>
<div class="control-group">
<label>Trail Length: <span class="value" id="trailValue">20</span></label>
<input type="range" id="trailSlider" min="5" max="40" value="20" />
</div>
<div class="control-group">
<label>Fade: <span class="value" id="fadeValue">0.05</span></label>
<input type="range" id="fadeSlider" min="0.01" max="0.2" step="0.01" value="0.05" />
</div>
<div class="control-group">
<label>Main Color</label>
<input type="color" id="colorPicker" value="#00ff00" />
</div>
<div class="control-group">
<label>Highlight Color</label>
<input type="color" id="highlightPicker" value="#ffffff" />
</div>
<button id="pauseBtn">Pause</button>
<button id="resetBtn">Reset</button>
</div>
<h2 style="text-align: center; margin: 2rem 0; font-weight: 300;">Theme Variations</h2>
<div class="matrix-grid">
<div class="matrix-card">
<h3>Blue Code</h3>
<animation-matrix
class="blue-matrix"
color="#00aaff"
highlight-color="#ffffff"
></animation-matrix>
</div>
<div class="matrix-card">
<h3>Red Alert</h3>
<animation-matrix
class="red-matrix"
color="#ff3333"
highlight-color="#ffff00"
></animation-matrix>
</div>
<div class="matrix-card">
<h3>Purple Haze</h3>
<animation-matrix
class="purple-matrix"
color="#aa00ff"
highlight-color="#ff88ff"
></animation-matrix>
</div>
<div class="matrix-card">
<h3>Slow Motion</h3>
<animation-matrix speed="0.3" trail-length="30"></animation-matrix>
</div>
<div class="matrix-card">
<h3>High Speed</h3>
<animation-matrix speed="2.5" trail-length="10"></animation-matrix>
</div>
<div class="matrix-card">
<h3>Dense Code</h3>
<animation-matrix density="2" font-size="10"></animation-matrix>
</div>
</div>
</div> CSS (css)
:root {
--bg: #0c0f14;
--bg-elevated: #141923;
--bg-panel: #171d28;
--border: #262f3f;
--text: #f4f6fb;
--text-muted: #a7b0c2;
--text-dim: #7d879b;
--accent: #ff8a3d;
--accent-strong: #ff6a00;
--accent-soft: rgba(255, 138, 61, 0.16);
--shadow: 0 20px 50px rgba(5, 8, 14, 0.45);
--radius-lg: 22px;
--radius-md: 14px;
--radius-sm: 10px;
--max-width: 1160px;
}
<script type="module" src="../src/animation-matrix.js"></script>
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
h1 {
text-align: center;
padding: 2rem;
font-weight: 300;
letter-spacing: 4px;
color: #00ff00;
text-shadow: 0 0 10px #00ff00;
}
.demo-container {
max-width: 1400px;
margin: 0 auto;
padding: 0 1rem 2rem;
}
.main-matrix {
--matrix-height: 400px;
border-radius: 8px;
overflow: hidden;
margin-bottom: 2rem;
}
.controls {
display: flex;
flex-wrap: wrap;
gap: 1.5rem;
justify-content: center;
padding: 1.5rem;
background: rgba(0, 255, 0, 0.05);
border: 1px solid rgba(0, 255, 0, 0.2);
border-radius: 12px;
margin-bottom: 2rem;
}
.control-group {
display: flex;
flex-direction: column;
gap: 0.5rem;
min-width: 150px;
}
.control-group label {
font-size: 0.875rem;
color: #00ff00;
opacity: 0.8;
}
input[type='range'] {
width: 150px;
accent-color: #00ff00;
}
input[type='color'] {
width: 50px;
height: 30px;
border: none;
border-radius: 4px;
cursor: pointer;
}
button {
padding: 0.75rem 1.5rem;
border: 1px solid #00ff00;
border-radius: 8px;
background: transparent;
color: #00ff00;
font-size: 1rem;
cursor: pointer;
transition: all 0.3s ease;
}
button:hover {
background: rgba(0, 255, 0, 0.1);
box-shadow: 0 0 15px rgba(0, 255, 0, 0.3);
}
button.active {
background: #00ff00;
color: #000;
}
.presets {
display: flex;
gap: 1rem;
justify-content: center;
margin-bottom: 2rem;
flex-wrap: wrap;
}
.preset-btn {
padding: 0.5rem 1rem;
font-size: 0.875rem;
}
.matrix-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
gap: 1.5rem;
margin-bottom: 2rem;
}
.matrix-card {
background: rgba(0, 0, 0, 0.5);
border: 1px solid rgba(0, 255, 0, 0.2);
border-radius: 12px;
overflow: hidden;
}
.matrix-card h3 {
padding: 1rem;
font-weight: 400;
font-size: 1rem;
color: #00ff00;
border-bottom: 1px solid rgba(0, 255, 0, 0.2);
}
.matrix-card animation-matrix {
--matrix-height: 200px;
}
.blue-matrix {
--matrix-background: #000010;
}
.red-matrix {
--matrix-background: #100000;
}
.purple-matrix {
--matrix-background: #0a000a;
}
/* Value display */
.value {
font-family: monospace;
color: #00ff00;
}
/* Overlay text demo */
.overlay-demo {
position: relative;
}
.overlay-content {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
text-align: center;
z-index: 10;
}
.overlay-content h2 {
font-size: 3rem;
font-weight: 200;
letter-spacing: 8px;
text-shadow: 0 0 20px #00ff00, 0 0 40px #00ff00;
margin-bottom: 1rem;
}
.overlay-content p {
font-size: 1.2rem;
opacity: 0.8;
} JS (js)
const mainMatrix = document.getElementById('mainMatrix');
const fontSizeSlider = document.getElementById('fontSizeSlider');
const speedSlider = document.getElementById('speedSlider');
const densitySlider = document.getElementById('densitySlider');
const trailSlider = document.getElementById('trailSlider');
const fadeSlider = document.getElementById('fadeSlider');
const colorPicker = document.getElementById('colorPicker');
const highlightPicker = document.getElementById('highlightPicker');
const pauseBtn = document.getElementById('pauseBtn');
const resetBtn = document.getElementById('resetBtn');
// Presets
const presets = {
classic: {
color: '#00ff00',
highlightColor: '#ffffff',
characters: 'アイウエオカキクケコサシスセソタチツテトナニヌネノハヒフヘホマミムメモヤユヨラリルレロワヲン0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ',
},
blue: {
color: '#00aaff',
highlightColor: '#88ddff',
characters: 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789@#$%&*',
},
red: {
color: '#ff3333',
highlightColor: '#ffff00',
characters: 'WARNING DANGER ALERT ERROR SYSTEM FAILURE ',
},
binary: {
color: '#00ff00',
highlightColor: '#88ff88',
characters: '01',
},
emoji: {
color: '#ffff00',
highlightColor: '#ffffff',
characters: '🔥💧🌟⭐✨🎮🎯🎲🎪🎭🎨🎬🎤🎧🎸🎹🎺🎻🎼🎵🎶',
},
numbers: {
color: '#00ffaa',
highlightColor: '#ffffff',
characters: '0123456789+-*/=<>[]{}()',
},
};
document.querySelectorAll('.preset-btn').forEach(btn => {
btn.addEventListener('click', () => {
const preset = presets[btn.dataset.preset];
if (preset) {
mainMatrix.color = preset.color;
mainMatrix.highlightColor = preset.highlightColor;
mainMatrix.setCharacters(preset.characters);
colorPicker.value = preset.color;
highlightPicker.value = preset.highlightColor;
}
});
});
// Control handlers
fontSizeSlider.addEventListener('input', (e) => {
const value = parseInt(e.target.value);
mainMatrix.fontSize = value;
document.getElementById('fontSizeValue').textContent = value;
});
speedSlider.addEventListener('input', (e) => {
const value = parseFloat(e.target.value);
mainMatrix.speed = value;
document.getElementById('speedValue').textContent = value.toFixed(1);
});
densitySlider.addEventListener('input', (e) => {
const value = parseFloat(e.target.value);
mainMatrix.density = value;
document.getElementById('densityValue').textContent = value.toFixed(1);
});
trailSlider.addEventListener('input', (e) => {
const value = parseInt(e.target.value);
mainMatrix.trailLength = value;
document.getElementById('trailValue').textContent = value;
});
fadeSlider.addEventListener('input', (e) => {
const value = parseFloat(e.target.value);
mainMatrix.fadeOpacity = value;
document.getElementById('fadeValue').textContent = value.toFixed(2);
});
colorPicker.addEventListener('input', (e) => {
mainMatrix.color = e.target.value;
});
highlightPicker.addEventListener('input', (e) => {
mainMatrix.highlightColor = e.target.value;
});
pauseBtn.addEventListener('click', () => {
mainMatrix.toggle();
pauseBtn.textContent = mainMatrix.paused ? 'Resume' : 'Pause';
pauseBtn.classList.toggle('active', mainMatrix.paused);
});
resetBtn.addEventListener('click', () => {
mainMatrix.reset();
});
// Listen for animation events
mainMatrix.addEventListener('animation-start', () => {
console.log('Matrix animation started');
});
mainMatrix.addEventListener('animation-stop', () => {
console.log('Matrix animation stopped');
});