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A collection of beautiful hover effects for images using canvas. Built with TypeScript and optimized for performance.

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# Hover Effects TS

A collection of beautiful hover effects for images using canvas. Built with TypeScript and optimized for performance.

## 📺 Live Demos

### Video Demo
<div align="center">
  <a href="https://youtu.be/PjxFH-Q53zM" target="_blank">
    <img src="./youtube.png" alt="Hover Effects Demo" width="600"/>
  </a>
  <br/>
  <em>Click the image to view the demo video on YouTube</em>
</div>

### Interactive Playground

Check out our live demo to see all the effects in action:

[Vercel Demo](https://img-hover.vercel.app/)

#### You can quickly figure out what values works best and directly plug those in your implementation :D.

<br>

## ✨ Features

- 🖼️ **Multiple Effects**: Choose from ASCII art, zoom, particle dust, pixel art, Minecraft-style, Lego, and LED Matrix effects
- 🎨 **Canvas-based**: Smooth, performant animations using the Canvas API
- 📱 **Responsive**: Works with any image size
- 🎮 **Interactive**: Dynamic effects that respond to mouse movement
- 🔧 **Customizable**: Configure effect parameters in real-time
- 🚀 **Lightweight**: Minimal dependencies, focused on performance
- 📦 **Tree-shakable**: Only import the effects you need

## 📥 Installation

```bash
# Using npm
npm install hover-effects-ts

# Using yarn
yarn add hover-effects-ts

# Using pnpm
pnpm add hover-effects-ts
```

## 🚀 Quick Start Guide

### Basic Example

Add the effect to your image with just a few lines of code:

```html
<img src="your-image.jpg" alt="Your Image" id="my-image">

### Multiple Images

You can easily apply effects to multiple images at once:

```javascript
// Select all images with a specific class
const images = document.querySelectorAll('.hover-image');

// Apply the same effect to all of them
applyHoverEffect(images, {
  effect: 'zoom',
  scale: 1.2,
  radius: 100
});
```

### Using CSS Selector

You can also target elements using a CSS selector:

```javascript
// Apply effect to all images with a specific class
applyHoverEffect('.gallery-image', {
  effect: 'minecraft',
  blockSize: 8,
  radius: 130
});
```

## 📚 Example Usage Guide

For a comprehensive guide on using hover effects correctly, check out the `examples` directory, which includes:

1. **Interactive Usage Guide** - A complete example showing proper initialization and configuration:
   - `examples/usage-guide.html` - Interactive demo with UI controls
   - `examples/usage-guide.js` - Implementation with best practices

2. **Key Implementation Patterns**:
   - Waiting for images to load before applying effects
   - Using UI control values for initialization
   - Properly updating effects with setter methods
   - Debugging and troubleshooting techniques

Run the examples locally after installing:

```bash
# Clone the repository
git clone https://github.com/hsrambo07/hover-effects
cd hover-effects

# Install dependencies
npm install

# Build the library
npm run build

# Open the example in your browser
open examples/usage-guide.html
```

## 📦 Import Only What You Need

To reduce your bundle size, you can import only the specific effects you need:

```javascript
// Import only the effects you'll use
import { AsciiHover } from 'hover-effects-ts';

// Create the effect directly
const effect = new AsciiHover({ 
  size: 16,
  radius: 100
});

// Attach it to your image
effect.attach(document.querySelector('img'));

// Clean up when done
effect.destroy();
```

## 🎮 Interactive Controls

All effects support dynamic parameter updates:

```javascript
// Create an effect
const effect = applyHoverEffect('#my-image', {
  effect: 'ascii',
  size: 16,
  radius: 100
});

// Connect to UI sliders
document.getElementById('size-slider').addEventListener('input', (e) => {
  effect.setSize(parseInt(e.target.value));
});

document.getElementById('radius-slider').addEventListener('input', (e) => {
  effect.setRadius(parseInt(e.target.value));
});
```

## 🎨 Available Effects

### ASCII Art Effect

Transforms your image into dynamic ASCII characters when hovering.

> **📺 Demo**: See the ASCII effect in action on [YouTube](https://youtu.be/PjxFH-Q53zM)

```javascript
applyHoverEffect('#my-image', {
  effect: 'ascii',
  size: 16,              // Character size in pixels (range: 6-30, default: 16)
  radius: 100,           // Effect radius in pixels (range: 30-800, default: 100)
  glitchIntensity: 3,    // Intensity of the glitch effect (range: 0-20, default: 3)
  glitchSpeed: 0.5,      // Speed of the glitch effect (range: 0.1-20, default: 5)
  chars: ['█', '@', '%', '#', '*', '+', '=', '-', ':', '.', ' '] // Optional custom characters
});
```

**Available controls:**
- `setSize(size)` - Changes the character size (6-30px)
- `setRadius(radius)` - Changes the effect radius (30-800px)
- `setGlitchIntensity(intensity)` - Adjusts glitch intensity (0-20)
- `setGlitchSpeed(speed)` - Adjusts glitch animation speed (0.1-20)
- `setChars(chars)` - Sets custom character set

### Zoom Effect

Creates a magnifying glass effect when hovering.

> **📺 Demo**: See the zoom effect in action on [YouTube](https://youtu.be/PjxFH-Q53zM)

```javascript
applyHoverEffect('#my-image', {
  effect: 'zoom',
  scale: 1.2,    // Zoom scale (range: 1.1-2.0, default: 1.2)
  radius: 100    // Effect radius in pixels (range: 50-200, default: 100)
});
```

**Available controls:**
- `setScale(scale)` - Changes the zoom magnification level (1.1-2.0)
- `setRadius(radius)` - Changes the zoom lens radius (50-200px)

### Particle Dust Effect

Breaks the image into pixel particles that scatter when hovering.

> **📺 Demo**: See the particle effect in action on [YouTube](https://youtu.be/PjxFH-Q53zM)

```javascript
applyHoverEffect('#my-image', {
  effect: 'particle-dust',
  spacing: 4,     // Particle spacing in pixels (range: 2-10, default: 4)
  maxDrift: 28,   // Maximum particle drift distance (range: 10-50, default: 28)
  radius: 110     // Effect radius in pixels (range: 50-200, default: 110)
});
```

**Available controls:**
- `setSpacing(spacing)` - Changes particle density (2-10px)
- `setMaxDrift(maxDrift)` - Adjusts how far particles drift (10-50px)
- `setRadius(radius)` - Changes the effect radius (50-200px)

### Pixel Effect

Creates a pixelated effect when hovering.

> **📺 Demo**: See the pixel effect in action on [YouTube](https://youtu.be/PjxFH-Q53zM)

```javascript
applyHoverEffect('#my-image', {
  effect: 'pixel',
  blockSize: 16,   // Pixel size in pixels (range: 4-32, default: 16)
  radius: 130     // Effect radius in pixels (range: 50-200, default: 130)
});
```

**Available controls:**
- `setBlockSize(blockSize)` - Changes the pixel size (4-32px)
- `setRadius(radius)` - Changes the effect radius (50-200px)

### Minecraft Effect

Creates a 3D voxel-like effect similar to Minecraft blocks.

> **📺 Demo**: See the Minecraft effect in action on [YouTube](https://youtu.be/PjxFH-Q53zM)

```javascript
applyHoverEffect('#my-image', {
  effect: 'minecraft',
  blockSize: 28,   // Block size in pixels (range: 4-32, default: 28)
  radius: 130     // Effect radius in pixels (range: 50-200, default: 130)
});
```

**Available controls:**
- `setBlockSize(blockSize)` - Changes the block size (4-32px)
- `setRadius(radius)` - Changes the effect radius (50-200px)

### Lego Effect

Transforms the image into LEGO-like blocks when hovering.

> **📺 Demo**: See the LEGO effect in action on [YouTube](https://youtu.be/PjxFH-Q53zM)

```javascript
applyHoverEffect('#my-image', {
  effect: 'lego',
  blockSize: 16,   // Lego brick size in pixels (range: 8-40, default: 16)
  radius: 140,     // Effect radius in pixels (range: 80-200, default: 140)
  gap: 2,          // Gap between bricks (range: 1-5, default: 2)
  studScale: 0.33, // Scale of the studs on top of bricks (range: 0.2-0.7, default: 0.33)
  depth: 0.25,     // 3D effect depth (range: 0.1-0.4, default: 0.25)
  softEdge: 90,    // Softness of edge transition (range: 30-150, default: 90)
  fadeExp: 1.4     // Fade exponent for smooth transitions (range: 1.0-3.0, default: 1.4)
});
```

**Available controls:**
- `setBlockSize(blockSize)` - Changes the brick size (8-40px)
- `setRadius(radius)` - Changes the effect radius (80-200px)
- `setGap(gap)` - Adjusts spacing between bricks (1-5px)
- `setStudScale(scale)` - Changes the stud size on top of bricks (0.2-0.7)
- `setDepth(depth)` - Adjusts the 3D depth effect (0.1-0.4)
- `setSoftEdge(edge)` - Controls the edge softness (30-150px)
- `setFadeExp(exp)` - Adjusts the fade exponent for transitions (1.0-3.0)

### LED Matrix Effect

Creates an authentic LED matrix display that replaces the image with animated LED dots when hovering.

> **📺 Demo**: See the LED Matrix effect in action on [YouTube](https://youtu.be/PjxFH-Q53zM)

```javascript
applyHoverEffect('#my-image', {
  effect: 'dot-matrix',
  radius: 120,              // Effect radius in pixels (range: 50-300, default: 120)
  ledSize: 4,               // LED dot size in pixels (range: 2-15, default: 4)
  ledSpacing: 5,            // Spacing between LEDs (range: 4-25, default: 5)
  softEdge: 20,             // Soft edge transition (range: 0-50, default: 20)
  fadeExp: 2.0,             // Fade exponent for smooth transitions (range: 0.5-5.0, default: 2.0)
  glow: true,               // Enable LED glow effect (default: true)
  colorMode: 'mono',        // Color mode: 'mono' (cyan) or 'rgb' (original colors)
  animationType: 'wave',    // Animation type: 'none', 'wave', 'pulse', 'drift', 'ripple', 'rotation'
  animationSpeed: 1.0,      // Animation speed multiplier (range: 0.1-5.0, default: 1.0)
  animationIntensity: 3.0   // Animation intensity (range: 0.1-10.0, default: 3.0)
});
```

**Available controls:**
- `setRadius(radius)` - Changes the effect radius (50-300px)
- `setLedSize(ledSize)` - Changes the LED dot size (2-15px)
- `setLedSpacing(ledSpacing)` - Adjusts spacing between LEDs (4-25px)
- `setSoftEdge(softEdge)` - Controls the edge softness (0-50px)
- `setFadeExp(fadeExp)` - Adjusts the fade exponent (0.5-5.0)
- `setGlow(glow)` - Toggles the LED glow effect (boolean)
- `setColorMode(colorMode)` - Switches between 'mono' and 'rgb' color modes
- `setAnimationType(animationType)` - Changes animation type ('none', 'wave', 'pulse', 'drift', 'ripple', 'rotation')
- `setAnimationSpeed(animationSpeed)` - Adjusts animation speed (0.1-5.0)
- `setAnimationIntensity(animationIntensity)` - Controls animation intensity (0.1-10.0)

**Animation Types:**
- **Wave**: LEDs move in smooth sine wave patterns
- **Pulse**: LEDs pulse in size and brightness with varying phases
- **Drift**: LEDs drift randomly like particles in space
- **Ripple**: Ripple effects emanate from the mouse position
- **Rotation**: LEDs rotate around their positions with varying speeds
- **None**: Static LED display without animation

## 🚀 Performance Tips

To keep your hover effects running smoothly:

1. **Image Size**: Use appropriately sized images. Very large images may impact performance.
2. **Effect Parameters**: 
   - For ASCII effect, larger character sizes improve performance
   - For Particle effect, larger spacing values reduce the number of particles
   - For Pixel/Minecraft effects, larger block sizes improve performance
3. **Radius**: Smaller effect radii generally perform better
4. **Clean Up**: Always call `destroy()` when removing effects to prevent memory leaks

## 🔧 Best Practices

### Initialization

For best results when initializing effects:

1. **Load Images First**: Ensure images are fully loaded before applying effects
   ```javascript
   const img = document.getElementById('my-image');
   img.onload = () => {
     const effect = applyHoverEffect(img, { effect: 'minecraft', blockSize: 28 });
   };
   ```

2. **Get UI Controls Values**: If using sliders or other UI controls, initialize with their actual values
   ```javascript
   const sizeSlider = document.getElementById('size-slider');
   const radiusSlider = document.getElementById('radius-slider');
   
   const effect = applyHoverEffect('#my-image', {
     effect: 'pixel',
     blockSize: parseInt(sizeSlider.value),
     radius: parseInt(radiusSlider.value)
   });
   ```

3. **Safely Update Effects**: Use setter methods for real-time updates without re-initialization
   ```javascript
   // Better than destroying and recreating the effect
   sizeSlider.addEventListener('input', (e) => {
     effect.setBlockSize(parseInt(e.target.value));
   });
   ```

### Debugging Tips

If you encounter issues with effects:

1. **Check Browser Console**: Enable console logging for detailed initialization info
2. **Monitor Effect State**: Create a debug button to log the internal state
   ```javascript
   const debugBtn = document.getElementById('debug-btn');
   debugBtn.addEventListener('click', () => {
     console.log('Effect state:', {
       blockSize: effect.getBlockSize?.() || 'N/A',
       radius: effect.getRadius?.() || 'N/A',
       samples: effect._getSamples?.()?.length || 'N/A'
     });
   });
   ```
3. **Canvas Inspection**: Use browser dev tools to examine the canvas element and its properties

## 🌐 Browser Support

The library is supported in all modern browsers:

- ✅ Chrome 60+
- ✅ Firefox 55+
- ✅ Safari 11+
- ✅ Edge 79+

## 🧪 Integration Examples

### Using with React

```jsx
import React, { useEffect, useRef } from 'react';
import { applyHoverEffect } from 'hover-effects-ts';

// Usage
function App() {
  return (
    <HoverImage 
      src="/your-image.jpg" 
      alt="Interactive Image" 
      effect={{ 
        effect: 'ascii', 
        size: 16, 
        radius: 100 
      }} 
    />
  );
}
```

## 📄 License

MIT License - feel free to use this in your projects!

## 📝 Changelog

### Version 2.5.1
- **IMPROVEMENT**: Updated LED Matrix default values for better visual density
- **CHANGE**: Default LED size reduced from 8px to 4px
- **CHANGE**: Default LED spacing reduced from 8px to 5px
- **UPDATE**: Updated playground controls and documentation to reflect new defaults

### Version 2.5.0
- **NEW**: Added LED Matrix effect with authentic LED display simulation
- **NEW**: LED Matrix supports both monochrome (cyan) and RGB color modes
- **NEW**: Added 6 animation types for LED Matrix: Wave, Pulse, Drift, Ripple, Rotation, and None
- **NEW**: Configurable LED size, spacing, glow effects, and animation parameters
- **NEW**: Real-time animation controls with speed and intensity adjustments
- **ENHANCEMENT**: Improved canvas dimension validation to prevent IndexSizeError
- **ENHANCEMENT**: Added fallback handling for image loading edge cases
- **ENHANCEMENT**: Enhanced type definitions for better TypeScript support

### Version 2.4.4
- Added proper `

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