Lavodan fe8c0f961a Fix clients able to join above max players (#2547)
Resolves #698

## Description:


This PR fixes clients being able to join games which are already full.
This caused several bugs and glitches, like incorrect team sizes in team
games, and being stuck in spectator mode.

This fix checks for number of active clients in GameServer, and if it
sees that the lobby is full, it does not put the client in the game, and
sends an error with error key being "full-lobby"

ClientGameRunner then checks to see this error, and overrides the
default implementation of showing a popup. Instead it will leave the
lobby for the user by dispatching a leave-lobby event into the document,
and the user can then reqeue into a new game.

Here is a video showcasing how full games are handled.


https://github.com/user-attachments/assets/dc6220ea-590f-4bd1-8ca5-38c0d24ae792

## Note on testing

I wasn't able to figure out how to properly overwrite lobbyMaxPlayers
from the default config using the devconfig, so the video shows just a
hardcoded version of defaultconfig, therefore testing solo is probably
not really possible.

I just changed the function in defaultconfig for my testing to this:
```ts
  lobbyMaxPlayers(
    map: GameMapType,
    mode: GameMode,
    numPlayerTeams: TeamCountConfig | undefined,
  ): number {
	  return 1; 
	}
```

## Notes

This PR does not necessarily resolve all cases which cause 698, as for
example joining too late while there is still space is not changed at
all. For most public games, this shouldn't be an issue as the timer is
long enough for a majority to be filled up before the timer hits 0.

Additionally, spectating ongoing games should work fine, but as local
server spectating is buggy in general, I was not able to test and
confirm this 100%.

## Please complete the following:

- [x] 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
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

## Please put your Discord username so you can be contacted if a bug or
regression is found:

Lavodan
2025-12-01 15:33:24 -08:00
2025-06-22 08:14:08 -07:00
2025-09-30 11:13:32 -07:00
2025-11-18 12:19:16 -08:00
2025-07-22 21:11:28 -04:00
2025-11-19 10:34:23 -08:00
2025-09-12 10:16:20 -07:00
2025-10-18 17:26:30 -07:00
2025-06-26 12:52:31 -07:00
2025-06-08 19:38:23 -07:00
2025-09-30 11:13:32 -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 with additional attribution requirements:

  • Any forks or derivative works must display attribution (e.g., "Based on OpenFront", "Derived from OpenFront", "Powered by OpenFront", or "Fork of OpenFront") prominently on the main menu and/or initial title screen.

See the ADDITIONAL TERMS section in 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 i
    

🎮 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

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 - Shared game logic
  • /src/server - Backend game server
  • /resources - Static assets (images, maps, etc.)

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

  1. Request to join the development Discord.
  2. Fork the repository
  3. Create your feature branch (git checkout -b amazing-feature)
  4. Commit your changes (git commit -m 'Add some amazing feature')
  5. Push to the branch (git push origin amazing-feature)
  6. Open a Pull Request

🌐 Translation

Translators are welcome! Please feel free to help translate into your language. How to help?

  1. Join the translation Discord
  2. Go to the project's Crowdin translation page: https://crowdin.com/project/openfront-mls
  3. Login if you already have an account / Sign up if you don't have one
  4. Join the project
  5. Select the language you want to translate in. If your language isn't on the list, click the "Request New Language" button and enter the language you want added there.
  6. Translate the strings

Feel free to ask questions in the translation Discord server!

Project Governance

  • The project maintainer (evan) has final authority on all code changes and design decisions
  • All pull requests require maintainer approval before merging
  • The maintainer reserves the right to reject contributions that don't align with the project's vision or quality standards

Contribution Path for New Contributors

To ensure code quality and project stability, we use a progressive contribution system:

  1. New Contributors: Limited to UI improvements and small bug fixes only

    • This helps you become familiar with the codebase
    • UI changes are easier to review and less likely to break core functionality
    • Small, focused PRs have a higher chance of being accepted
  2. Established Contributors: After several successful PRs and demonstrating understanding of the codebase, you may work on more complex features

  3. Core Contributors: Only those with extensive experience with the project may modify critical game systems

How to Contribute Successfully

  1. Before Starting Work:

    • Open an issue describing what you want to contribute
    • Wait for maintainer feedback before investing significant time
    • Small improvements can proceed directly to PR stage
  2. Code Quality Requirements:

    • All code must be well-commented and follow existing style patterns
    • New features should not break existing functionality
    • Code should be thoroughly tested before submission
    • All code changes in src/core MUST be tested.
  3. Pull Request Process:

    • Keep PRs focused on a single feature or bug fix
    • Include screenshots for UI changes
    • Describe what testing you've performed
    • Be responsive to feedback and requested changes
  4. Testing Requirements:

    • Verify your changes work as expected
    • Test on multiple systems/browsers if applicable
    • Document your testing process in the PR

Communication

  • Be respectful and constructive in all project interactions
  • Questions are welcome, but please search existing issues first
  • For major changes, discuss in an issue before starting work

Final Notes

Remember that maintaining this project requires significant effort. The maintainer appreciates your contributions but must prioritize long-term project health and stability. Not all contributions will be accepted, and that's okay.

Thank you for helping make OpenFront better!

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