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Server

Setup

Setup the server first.

GameDesign

GameDesign.

Architecture

TODO: document server architecture, world, map, ai-zone, chunk management, user handling

Network

TODO: document network stuff like cvar replication, protocol (flatbuffer) stuff, login, logout and so on

General

Hint: In order to start the server you will need to setup the postgres database. See the setup documentation for more details.

After starting the server, you will get entities spawned in the world. You can use e.g. the ai remote debugger (src/tools/rcon) to inspect the state or use the client to connect.

To specify the database that should be used use the config bars db_name, db_host, db_pw and db_user. For example:

./vengi-owserver -set db_host 192.168.0.1 -set db_post 5432 -db_name vengi -db_pw engine

For the client connect you need a user in the database. You can create users with a server command called sv_createuser.

To get a list of available commands, you can use cmdlist in the server terminal.

Chunk download

The chunks are persisted in the database and can be made available via cdn or any other http server. The gameserver has a built-in http server, too. If you want to use any other http server, you have to set it via sv_httpchunkurl like this:

./vengi-owserver -set sv_httpchunkurl http://myhostname:8080/mychunkurl

... or export the environment variable SV_HTTPCHUNKURL or add it to your config file (see setup documentation for more details).

This cvar is one of those that is automatically replicated to the client. Whenever you change it, all clients will be notified about it and use the new url.

The http endpoint reads several GET paramters:

x, y, z: The chunk coordinates
mapid You will find these values in the chunk database table. A custom chunk endpoint just would have to send the database blob with a content type of application/chunk.

Docker

The docker image is using apt-cacher-ng (https://github.com/sameersbn/docker-apt-cacher-ng)

Make sure to have this running on your docker host

docker run --name apt-cacher-ng --init -d --restart=always \
  --publish 3142:3142 \
  --volume /srv/docker/apt-cacher-ng:/var/cache/apt-cacher-ng \
  sameersbn/apt-cacher-ng:3.1-1

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