Horse Sticker Maker

Generate a web app that creates custom animated GIF stickers for Chinese New Year (Year of the Horse 2026).

What It Does

• Users input custom blessing text (1-8 chars)
• Client-side Canvas renders a 240px animated GIF with:
  • Red gradient background with gold sparkle particles
  • 6-frame gold horse galloping animation (transparent PNG)
  • User's custom text in gold calligraphy at top
  • "立马加薪" bottom text with color-cycling effect
• Output is WeChat sticker compatible (≤500KB, 240px)

Quick Start

1. Copy the template project:

   cp -r <skill_dir>/assets/horse-blessing-template ./horse-blessing
   cd horse-blessing
   npm install
   

2. Run locally:

   npm run dev
   # Open http://localhost:3000/sticker
   

3. Deploy to Vercel:

   vercel --prod --yes
   

Project Structure

horse-blessing/
├── app/
│   ├── page.tsx          # Main page (AI-generated blessing with poem)
│   ├── sticker/page.tsx  # Sticker maker (Canvas GIF generator)
│   ├── api/generate/     # AI poem + image generation API
│   ├── api/sticker/      # Sticker API
│   └── layout.tsx        # Root layout (red theme)
├── public/
│   ├── horse-frame-[1-6].png  # 6-frame transparent gold horse
│   ├── horse-transparent.png  # Static horse fallback
│   └── gif.worker.js          # gif.js web worker
├── package.json
└── tailwind.config.ts

Key Technical Details

GIF Generation (Client-Side)

• Uses gif.js loaded via CDN (Script from next/script)
• 18 frames (6 horse frames × 3 cycles), 85ms delay per frame
• Canvas size: 240×240px for WeChat sticker compatibility
• Horse frames loaded as Image elements, drawn via drawImage

Horse Frame Assets

• 6 transparent PNG frames in public/horse-frame-[1-6].png
• Generated via AI image model, backgrounds removed with sharp
• Removal technique: pixels with R>210, G>210, B>210 → alpha=0

Customization Points

• Bottom text: Edit '立马加薪' in sticker/page.tsx
• GIF size: Change const size = 240 (keep ≤240 for WeChat)
• Frame count: Change const frames = 18
• Horse images: Replace public/horse-frame-*.png
• Background: Modify the radial gradient colors
• Sparkle count: Adjust sparkle array size (default 30)

WeChat Sticker Compatibility

• Max 500KB file size
• Max 240px recommended dimension
• GIF format required
• Save → WeChat chat → emoji panel → "+" → select from gallery

Dependencies

{
  "next": "^14.0.0",
  "react": "^18.2.0",
  "react-dom": "^18.2.0",
  "sharp": "latest",
  "gif-encoder-2": "^1.0.5",
  "html2canvas-pro": "^1.6.7"
}

External CDN: [email protected] (loaded at runtime for client-side GIF encoding)