## Description: Follow-up to #4485: adds a second nuke-explosion visual, `"sparkles"` — a firework burst of twinkling glints that start at the detonation point and ride outward with the expanding front, reaching the cosmetic's full `size` at fade-out. **Schema (`CosmeticSchemas.ts`)** - `NukeExplosionAttributesSchema` is now a discriminated union on `type` (`"shockwave" | "sparkles"`), matching `TrailEffectAttributesSchema`. Old clients drop sparkles entries via `lenientRecord` and render the default ring. - The sparkles member adds `density` (required, positive) — roughly the total number of glints in the burst. - Literal attribute semantics, consistent with shockwave: - `size` — final burst width (diameter) in world tiles at fade-out - `speed` — tiles/s the width grows; duration = size / speed, clamped 0.1–15 s - `thickness` — **average** sparkle size in tiles; each glint hash-varies ±50% around it - `density` — approximate glint count; renderer clamps to 2–5000 - `colors` + `transitionSpeed` — shared palette-cycle semantics, with a hashed per-glint palette offset on top **Rendering** - `NukeExplosionRenderParams` now carries the visual type through to the pass as a matching TS union (previously any cosmetic was hardwired to the EMP style — this closes that gap for future visuals). - Sparkles are style 2 in the same `FxShockwavePass` instance stream: one new float (grid cell pitch, derived CPU-side from density), no other layout changes. - Fragment shader: one hashed glint per rotated front-normalized grid cell (jittered, cell-confined so each fragment samples only its own cell, ~1/3 dropout for organic scatter), hashed birth stagger. Glints are **fully opaque** — twinkle modulates color brightness, not alpha — holding full opacity through life and fading only over the last quarter. - SAM interceptions, the classic ring, and EMP shockwaves are unchanged. **Store / selection** - New `<sparkles-swatch>` preview (burst scales from center, density-scaled dot count, size-varied dots, palette cycling), branched in `CosmeticButton` by `attributes.type`. **Verification** - Schema tests incl. the real `rgb_nuke_sparkles` catalog entry, missing/non-positive `density` rejection. - Verified in-game via headless Chromium: size-250 RGB burst renders opaque red/white/blue glints expanding from the detonation point; sparse (40) vs dense (400) density comparison; no page errors. ## Please complete the following: - [ ] I have added screenshots for all UI updates - [x] I process any text displayed to the user through translateText() and I've added it to the en.json file - [x] I have added relevant tests to the test directory 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
OpenFront.io is an online real-time strategy game focused on territorial control and alliance building. Players compete to expand their territory, build structures, and form strategic alliances in various maps based on real-world geography.
This is a fork/rewrite of WarFront.io. Credit to https://github.com/WarFrontIO.
License
OpenFront source code is licensed under the GNU Affero General Public License v3.0
Current copyright notices appear in:
- Footer: "© OpenFront and Contributors"
- Loading screen: "© OpenFront and Contributors"
Modified versions must preserve these notices in reasonably visible locations.
See the LICENSE for complete requirements.
For asset licensing, see LICENSE-ASSETS.
For license history, see LICENSING.md.
🌟 Features
- Real-time Strategy Gameplay: Expand your territory and engage in strategic battles
- Alliance System: Form alliances with other players for mutual defense
- Multiple Maps: Play across various geographical regions including Europe, Asia, Africa, and more
- Resource Management: Balance your expansion with defensive capabilities
- Cross-platform: Play in any modern web browser
📋 Prerequisites
- npm (v10.9.2 or higher)
- A modern web browser (Chrome, Firefox, Edge, etc.)
🚀 Installation
-
Clone the repository
git clone https://github.com/openfrontio/OpenFrontIO.git cd OpenFrontIO -
Install dependencies
npm run instDo NOT use
npm installnornpm ibut instead use ournpm run inst. It runs the safernpm ci --ignore-scriptsto install dependencies exactly according to the versions inpackage-lock.jsonand doesn't run scripts. This can prevent being hit by a supply chain attack.
🎮 Running the Game
Development Mode
Run both the client and server in development mode with live reloading:
npm run dev
This will:
- Start the webpack dev server for the client
- Launch the game server with development settings
- Open the game in your default browser (to disable this behavior, set
SKIP_BROWSER_OPEN=truein your environment)
Client Only
To run just the client with hot reloading:
npm run start:client
Server Only
To run just the server with development settings:
npm run start:server-dev
Connecting to staging or production backends
Sometimes it's useful to connect to production servers when replaying a game, testing user profiles, purchases, or login flow.
To replay a production game, make sure you're on the same commit that the game you want to replay was executed on, you can find the
gitCommitvalue viahttps://api.openfront.io/game/[gameId]. Unfinished games cannot be replayed on localhost.
To connect to staging api servers:
npm run dev:staging
To connect to production api servers:
npm run dev:prod
🛠️ Development Tools
-
Format code:
npm run format -
Lint code:
npm run lint -
Lint and fix code:
npm run lint:fix -
Testing
npm test
🏗️ Project Structure
/src/client- Frontend game client/src/core- Deterministic game simulation/src/server- Backend game server/resources- Static assets (images, maps, etc.)
🤝 Contributing
Contributions and translations are welcome! See CONTRIBUTING.md for the workflow, the approved-issue process, project governance, and translation info.