Evan f76f133589 Structure level numbers: classic bitmap font by default + graphics toggle (#4264)
## What

Structure **level numbers** now render in the **`round_6x6_modified`**
bitmap font by default (matching the old PIXI-based `StructureLayer` /
`v31`), with a graphics setting to switch back to the smooth
`overpass-bold` MSDF font.

Two commits:

1. **Default to the classic bitmap font** — `StructureLevelPass` drew
level digits from the `overpass-bold` MSDF atlas (the one `NamePass`
uses for player names); switch the default to the `round_6x6_modified`
pixel font (white digits with a baked-in dark outline).
2. **Add a runtime toggle** — load both fonts and switch between them
live via a new `Classic level numbers` graphics setting.

## How

- `StructureLevelPass` loads both atlases up front and selects one per
frame from `settings.structureLevel.classicFont`, re-laying-out the
digits when the toggle flips (digit advances differ between the fonts).
The fragment shader is a single program with a `uClassic` branch: direct
bitmap sample (white fill + baked outline) vs. MSDF median + synthesized
outline.
- New override `structure.classicNumbers` in `GraphicsOverrides`
(default `true` = classic), applied onto
`settings.structureLevel.classicFont` in `applyGraphicsOverrides` — so
it switches live, like the existing colorblind/classic-icons toggles.
- `GraphicsSettingsModal` gets a `Classic level numbers` toggle next to
`Classic icons` (with `en.json` strings).

## Testing

- `tsc --noEmit`, ESLint, Prettier, and `npm run build-prod` all pass.
- Ran the game headless, built/upgraded cities to level 2–3, and
confirmed: the classic toggle renders the pixel font, flipping it
renders the smooth MSDF font, and flipping back restores the pixel font
— switching live with no shader errors.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-13 19:07:17 -07:00

OpenFrontIO Logo

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.

CI Crowdin CLA assistant License: AGPL v3 Assets: CC BY-SA 4.0

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

  1. Clone the repository

    git clone https://github.com/openfrontio/OpenFrontIO.git
    cd OpenFrontIO
    
  2. Install dependencies

    npm run inst
    

    Do NOT use npm install nor npm i but instead use our npm run inst. It runs the safer npm ci --ignore-scripts to install dependencies exactly according to the versions in package-lock.json and 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=true in 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 gitCommit value via https://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.

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