Evan
6c84919801
## Summary Follow-up to #4255. That PR made nuke **sprites** glide per render frame — `UnitPass.drawMissiles` lerps each nuke's `lastPos→pos` by wall-clock progress through the current tick. But in ambient/night mode the glow *behind* a nuke comes from a separate pass, `PointLightPass`, whose instance buffer is packed once per tick in `updateLights()` from the raw `unit.pos`. Its per-frame `draw()` (run every frame via `LightmapPass`) only set uniforms and issued the instanced draw — it never repositioned the lights. So the sprite moved at 60fps while its light jumped once per 100ms tick. ## Fix Mirror `UnitPass`'s smoothing in `PointLightPass`: - `updateLights()` records a `smoothSegs` tuple `(lightIdx, lastX, lastY, x, y)` for each `SMOOTHED_NUKE_TYPES` unit whose `lastPos !== pos`, and stamps `lastUnitsUpdateMs`. - A new `applySmoothing()`, called at the top of `draw()`, lerps those lights by wall-clock tick progress (`(now - lastUnitsUpdateMs) / tickIntervalMs`, clamped to 1) and re-uploads **only** the affected instances. Unlike `UnitPass` (which re-uploads its tiny missile buffer wholesale), the light buffer can hold thousands of static structure lights, so a full per-frame re-upload would be wasteful. - `tickIntervalMs` comes from a new `config` constructor param, wired through in `Renderer.ts` (the same `config` already passed to `UnitPass`). The light now uses the exact same `lastPos→pos` endpoints and alpha as the sprite, so the two track together. ## Test plan - `npx tsc --noEmit`, eslint, and prettier all clean. - `npx vitest tests/client/render --run` — 40 passed. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Opus 4.8 <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.