Digital Fireplace

Brought to you by Good Feels · shop.getgoodfeels.com

An MCP server (and a self-hosted gallery) for 34 embeddable pixel-art digital fireplaces.

Each fireplace is a single-file HTML page that renders a tiny living scene — a stone hearth, a CRT yule log, a sparkler, a slow-burning joint, a phoenix egg, a plasma reactor — and pins a small Good Feels attribution to the bottom-right. Embed any of them with one <iframe> snippet, anywhere.

classic-hearth   wood-stove       campfire         joint-tray
yule-log         crystal-cave     space-stove      tiki-torch
lava-lamp        cabin-window     mystic-brazier   jack-o-lantern
menorah          birthday-candle  sparkler         new-years
bonfire-beach    forge-anvil      sun-disc         volcano
aurora           dragon-mouth     phoenix-egg      lightsaber
solar-flare      welding-arc      gas-stove        furnace-coal
tea-light        match-strike     cigar-ashtray    incense
bong-cherry      firefly-jar

CC0. Take it, fork it, theme it, ship it.

---

What's in the box

• public/fireplaces/*.html — 34 self-contained fireplace pages
• public/lib/fire.js — the shared fire engine (Doom 1993 fire algorithm + 7 swappable palettes + a FireCrackle WebAudio synth)
• public/lib/chrome.js — shared sponsor footer + tap-to-start audio gate
• public/index.html — "The Hearth Picker" gallery, a live grid of all 34 with embed code modal
• public/server.js — minimal Node static server (no framework deps)
• src/index.ts — MCP server exposing 7 tools

Quick start

# Install + build
npm install
npm run build

# Run the static gallery on http://127.0.0.1:4700
npm run serve

# Run the MCP server (stdio)
npm start

Open http://127.0.0.1:4700 to browse the picker. Click any tile's embed button to get a turnkey iframe snippet for your own site.

Embed anywhere

<iframe
  src="https://your-host/fireplaces/joint-tray.html"
  width="800" height="500"
  frameborder="0"
  allow="autoplay"
  title="Good Feels · digital fireplace"
  style="border:none;"
></iframe>
<!-- brought to you by Good Feels · shop.getgoodfeels.com -->

MCP tools

Wire into your Claude Code, Cursor, or any MCP-compatible client by adding to its mcpServers config:

"digital-fireplace": {
  "command": "node",
  "args": ["/absolute/path/to/digital-fireplace-mcp/dist/index.js"],
  "type": "stdio",
  "env": { "FIREPLACE_SERVER_URL": "http://127.0.0.1:4700" }
}

Tool	What it does
fireplace_list_styles	Catalog of all 34 fireplaces with mood, palette, tags, URL
fireplace_get_html	Raw HTML for one fireplace (optionally bundled with fire.js / chrome.js for self-hosting)
fireplace_get_embed_code	Turnkey <iframe> snippet with sponsor comment
fireplace_get_url	Live URL for a specific fireplace
fireplace_random	Surprise pick
fireplace_get_gallery_url	URL of the picker grid
fireplace_recommend	Free-form vibe → top-3 matches by tag scoring

Example: "recommend a fireplace for a winter night sci-fi stream" → crystal-cave, space-stove, aurora.

How the fire engine works

The shared PixelFire class implements the classic Doom 1993 fire algorithm. For every pixel from bottom row to top, it copies from the row below with a small random horizontal offset and decays the palette index by 0–3. The hot source row at the bottom plus randomized decay produces a beautiful living flame that costs almost nothing to render.

Each fireplace picks a palette and (optionally) a mask + custom source row to shape the fire. Crystal Cave uses a cool blue palette. Plasma Reactor masks the fire to a circle. Gas Stove punches 12 hot zones into the source row to make discrete jets. Sun Disc and Solar Flare use a mostly-white solar palette.

Some fireplaces (lava-lamp, aurora, lightsaber, firefly-jar, joint-tray, bong-cherry, incense, match-strike, birthday-candle, new-years) use entirely custom CSS / canvas particle systems instead — picked when the Doom-fire approach didn't fit the subject.

Palettes

hearth · crystal · ember · mystic · plasma · tiki · lava · forge · gas · saber · solar · aurora

Add your own to public/lib/fire.js. Each is just an array of [r, g, b] triples ordered cold→hot.

Sponsor

Every fireplace renders a small fixed-position attribution linking to https://shop.getgoodfeels.com. The gallery hub also has a banner sponsor button. Both are baked into the chrome and present on every page.

If you fork this and want to remove or replace the sponsor with your own, edit public/lib/chrome.js (one file, ~120 lines).

License

CC0 1.0 Universal — public domain. See LICENSE. The fire algorithm itself was published by Fabien Sanglard / id Software in 1993 and is also widely-shared.

Credits

Built by @mhoydich · sponsored by Good Feels.

Doom-fire algorithm (1993) — Fabien Sanglard's reverse-engineering writeup is the canonical reference.