# OpenTTD JGRPP Docker Server

This setup builds OpenTTD with the JGR Patch Pack (JGRPP) from source and runs it in a Docker container.

## Getting Started

1.  **Build and start the server:**
    ```bash
    docker-compose up -d --build
    ```

2.  **Accessing the console:**
    ```bash
    docker exec -it openttd-jgrpp openttd -D
    ```
    (Actually, the server runs in dedicated mode. You can view logs with:)
    ```bash
    docker-compose logs -f
    ```

3.  **Configuration:**
    The configuration is stored in `config/openttd.cfg`. The default password is set to `asd`.

4.  **Save Games:**
    Save games are stored in `config/save/`.

## AdminBridge GameScript
`config/` is gitignored (it holds savegames, downloaded content and generated config), so the
AdminBridge GameScript — the server-side half of the Python client's admin GameScript channel —
is kept in [gamescript/AdminBridge/](../gamescript/AdminBridge/README.md) instead and bind-mounted
read-only over the container's `game/AdminBridge` by `docker-compose.yml`. Nothing to install:
`docker-compose up` serves the tracked copy. Edit it there, not under `config/game/`, which the
mount shadows. A GameScript is loaded at game start, so restart the server to pick up a change.

Running the server outside this compose file? Copy the directory in by hand instead:
```bash
cp -r ../gamescript/AdminBridge ~/.local/share/openttd/game/
```

## JGRPP Source
The source code is cloned from the `jgrpp` branch of `https://github.com/JGRennison/OpenTTD-patches`
(currently at tag `jgrpp-0.71.1`) and carries local patches from `patches/` — see
[patches/README.md](patches/README.md). After a fresh clone of the source, apply them with
`git -C OpenTTD-patches am ../patches/*.patch` before building.

To update the server to a newer JGRPP version:
1.  Update the `OpenTTD-patches` directory:
    ```bash
    cd OpenTTD-patches && git pull && cd ..
    ```
2.  Reapply (rebase if needed) the local patches from `patches/`.
3.  Rebuild the image:
    ```bash
    docker-compose up -d --build
    ```