# Diplomacy: DATC-Compliant Game Engine [](https://travis-ci.org/diplomacy/diplomacy) [](https://diplomacy.readthedocs.io/en/latest/?badge=latest)
This project contains an open-source DATC-compliant Diplomacy game engine, a client-server architecture for network play, a web interface to play against bots and to visualize games, and a DAIDE-compatible adapter to connect DAIDE bots to the server.
<p align="center">
<img width="500" src="docs/images/map_overview.png" alt="Diplomacy Map Overview">
</p>
## Documentation
The complete documentation is available at [diplomacy.readthedocs.io](https://diplomacy.readthedocs.io/).
## Getting Started
### Installation
The latest version of the package can be installed with:
```python3
pip install diplomacy
```
The package is compatible with Python 3.5, 3.6, and 3.7.
### Running a game
The following script plays a game locally by submitting random valid orders until the game is completed.
```python3
import random
from diplomacy import Game
from diplomacy.utils.export import to_saved_game_format
# Creating a game
# Alternatively, a map_name can be specified as an argument. e.g. Game(map_name='pure')
game = Game()
while not game.is_game_done:
# Getting the list of possible orders for all locations
possible_orders = game.get_all_possible_orders()
# For each power, randomly sampling a valid order
for power_name, power in game.powers.items():
power_orders = [random.choice(possible_orders[loc]) for loc in game.get_orderable_locations(power_name)
if possible_orders[loc]]
game.set_orders(power_name, power_orders)
# Messages can be sent locally with game.add_message
# e.g. game.add_message(Message(sender='FRANCE',
# recipient='ENGLAND',
# message='This is a message',
# phase=self.get_current_phase(),
# time_sent=int(time.time())))
# Processing the game to move to the next phase
game.process()
# Exporting the game to disk to visualize (game is appended to file)
# Alternatively, we can do >> file.write(json.dumps(to_saved_game_format(game)))
to_saved_game_format(game, output_path='game.json')
```
## Web interface
It is also possible to install a web interface in React to play against bots and/or other humans and to visualize games.
The web interface can be installed with:
```bash
# Install NVM
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.34.0/install.sh | bash
# Clone repo
git clone https://github.com/diplomacy/diplomacy.git
# Install package locally
# You may want to install it in a conda or virtualenv environment
cd diplomacy/
pip install -r requirements_dev.txt
# Build node modules
cd diplomacy/web
npm install .
npm install . --only=dev
# In a terminal window or tab - Launch React server
npm start
# In another terminal window or tab - Launch diplomacy server
python -m diplomacy.server.run
```
The web interface will be accessible at http://localhost:3000.
To login, users can use admin/password or username/password. Additional users can be created by logging in with a username that does not exist in the database.
### Visualizing a game
It is possible to visualize a game by using the "Load a game from disk" menu on the top-right corner of the web interface.
## Network Game
It is possible to join a game remotely over a network using websockets. The script below plays a game over a network.
Note. The server must be started with `python -m diplomacy.server.run` for the script to work.
```python3
import asyncio
import random
from diplomacy.client.connection import connect
from diplomacy.utils import exceptions
POWERS = ['AUSTRIA', 'ENGLAND', 'FRANCE', 'GERMANY', 'ITALY', 'RUSSIA', 'TURKEY']
async def create_game(game_id, hostname='localhost', port=8432):
""" Creates a game on the server """
connection = await connect(hostname, port)
channel = await connection.authenticate('random_user', 'password')
await channel.create_game(game_id=game_id, rules={'REAL_TIME', 'NO_DEADLINE', 'POWER_CHOICE'})
async def play(game_id, power_name, hostname='localhost', port=8432):
""" Play as the specified power """
connection = await connect(hostname, port)
channel = await connection.authenticate('user_' + power_name, 'password')
# Waiting for the game, then joining it
while not (await channel.list_games(game_id=game_id)):
await asyncio.sleep(1.)
game = await channel.join_game(game_id=game_id, power_name=power_name)
# Playing game
while not game.is_game_done:
current_phase = game.get_current_phase()
# Submitting orders
if game.get_orderable_locations(power_name):
possible_orders = game.get_all_possible_orders()
orders = [random.choice(possible_orders[loc]) for loc in game.get_orderable_locations(power_name)
if possible_orders[loc]]
print('[%s/%s] - Submitted: %s' % (power_name, game.get_current_phase(), orders))
await game.set_orders(power_name=power_name, orders=orders, wait=False)
# Messages can be sent with game.send_message
# await game.send_game_message(message=game.new_power_message('FRANCE', 'This is the message'))
# Waiting for game to be processed
while current_phase == game.get_current_phase():
await asyncio.sleep(0.1)
# A local copy of the game can be saved with to_saved_game_format
# To download a copy of the game with messages from all powers, you need to export the game as an admin
# by logging in as 'admin' / 'password'
async def launch(game_id):
""" Creates and plays a network game """
await create_game(game_id)
await asyncio.gather(*[play(game_id, power_name) for power_name in POWERS])
if __name__ == '__main__':
asyncio.run(launch(game_id=str(random.randint(1, 1000))))
```
## License
This project is licensed under the APGLv3 License - see the [LICENSE](LICENSE) file for details