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Code base

Requirements

  • Node.js 24 (see .nvmrc). Node 26 is not supported yet, isolated-vm (used by the screeps server) does not build against it.
  • Build tools for the native modules (isolated-vm, screeps driver): python3, make and g++ (Debian/Ubuntu: apt install python3 build-essential)
  • Docker or Podman with compose support for the test server (MongoDB, Redis)

If the system Node.js has a different version, use a version manager which reads .nvmrc, e.g. fnm:

curl -fsSL https://fnm.vercel.app/install | bash
fnm install   # installs the version from .nvmrc
fnm use
npm install

npm only runs install scripts of packages listed in allowScripts in package.json. When a dependency with install scripts is added or its git source changes, review it with npm install-scripts ls and approve it with npm install-scripts approve <pkg>.

Developing on test server

To setup a test server with multiple bots. This will prepare the server and start everyting in a docker compose environment and can be stopped with CTRL-C

  • npm run setupTestServer

It can be resumed via

docker compose up

Podman

The compose files also work with Podman (apt install podman podman-compose):

  • CONTAINER_ENGINE=podman npm run setupTestServer
  • podman compose up to resume

With rootless Podman the MongoDB data in tmp-test-server-database/ is owned by a mapped user id, remove it with podman unshare rm -rf tmp-test-server-database.

To deploy create a .screeps.yaml:

servers:
  main:
    host: 127.0.0.1
    port: 21025
    secure: false
    username: 'W8N8'
    password: 'tooangel'

and run npm run deployLocal.

Tweaking

Config

Add a src/config_local.js to overwrite configuration values. Copy config_local.js.example to src/config_local.js as an example. src/config.js has the default values.

Friends

Add a src/friends.js with player names to ignore them from all attack considerations.

E.g.: module.exports = ['TooAngel'];

Interacting

the src/utils.js provides methods to interact with the NPC.

Debugging

Within the config_local.js certain config.debug flags can be enabled. To add debug messages Room.debugLog(TYPE, MESSAGE) and Creep.creepLog(MESSAGE) are suggested. Especially the creepLog allows granular output of the creep behavior based on the room and the creep role.

Testing

node utils/test.js will start a private server and add some bots as test cases.

Upload

install dependencies

npm install

add your account credentials

to screeps.com

To deploy to the live server provide the credentials.

via env

export email=EMAIL
export password=PASSWORD

via git ignored file

echo "module.exports = { email: 'your-email@here.tld', password: 'your-secret' };" > account.screeps.com.js

or edit and rename account.screeps.com.js.sample to account.screeps.com.js

And deploy to the server:

npm run deploy

To the season server, with token in the environment or in account.screeps.com.js:

node utils/deploy.js season

to private server

See Developing on test server: npm run deployLocal.

Release

Releasing to npm is done automatically by increasing the version and merging to master.

Every deploy to master is automatically deployed to the live tooangel account.