Extend game to multiplayer with AWS deployment

.github/dependabot.yml

@@ -26,4 +26,4 @@ updates:
       - "github-actions"
     commit-message:
       prefix: "github-actions"
-      include: "scope"
+      include: "scope"

README.md

@@ -53,32 +53,61 @@ A sophisticated text-based RPG that leverages AI to generate unique content, fea
 - Inventory system with consumables and equipment
 - Gold-based economy with configurable sell prices
 
+### Multiplayer Support
+- Turn-based combat with player queue
+- Multiple players and enemies in combat
+- Real-time communication using WebSockets
+- Player authentication and session management
+- Game state saving and loading
+
 ## Installation
 
 ### Prerequisites
 - Python 3.12+
 - OpenAI API key (for AI-generated content)
+- PostgreSQL (for game state and session management)
 
 ### Setup
 1. Clone the repository:
-```bash
-git clone https://github.com/yourusername/terminal-quest.git
-cd terminal-quest
-```
+   ```bash
+   git clone https://github.com/yourusername/terminal-quest.git
+   cd terminal-quest
+   ```
+
 2. Install dependencies:
-```bash
-pip3 install -r requirements.txt
-```
+   ```bash
+   pip3 install -r requirements.txt
+   ```
 
 3. Create a `.env` file:
-```env
-OPENAI_API_KEY=your_key_here
-```
+   ```env
+   OPENAI_API_KEY=your_key_here
+   DATABASE_URL=your_postgresql_database_url
+   ```
 
-4. Run the game:
-```bash
-python3 main.py
-```
+4. Set up the PostgreSQL database:
+   - Ensure PostgreSQL is running.
+   - Create the necessary database and tables using the provided SQL scripts or migrations.
+
+5. Run the server:
+   ```bash
+   python src/services/server.py
+   ```
+
+6. Run the client:
+   ```bash
+   python client/client.py
+   ```
+
+## Running the Game on a Server
+
+To run the game on a server and allow players to connect from their machines, follow these steps:
+
+1. Set up an AWS EC2 instance or any other cloud server.
+2. Install the necessary dependencies on the server.
+3. Configure the server to run the game as a service.
+4. Use a WebSocket server to handle real-time communication between the server and clients.
+5. Players can connect to the server using a client application that communicates with the server via WebSockets.
 
 ## Project Structure
 
@@ -162,4 +191,4 @@ terminal_quest/
 - Multiplayer support
 
 ## License
-This project is licensed under the MIT License - see the LICENSE file for details.
+This project is licensed under the MIT License - see the LICENSE file for details.

alembic.ini

@@ -0,0 +1,34 @@
+# alembic.ini
+[alembic]
+# path to migration scripts
+script_location = migrations
+
+# database connection URL
+sqlalchemy.url = postgresql://rpg_user:secure_password@localhost:5432/rpg_game
+
+[loggers]
+keys = root, sqlalchemy
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(asctime)s %(levelname)-5.5s [%(name)s] %(message)s

client/client.py

@@ -0,0 +1,44 @@
+import asyncio
+import websockets
+import json
+
+
+async def connect_to_server():
+    uri = "ws://localhost:8765"
+    async with websockets.connect(uri) as websocket:
+        # Authenticate player
+        await websocket.send(
+            json.dumps(
+                {"action": "authenticate", "username": "player", "password": "password"}
+            )
+        )
+        response = await websocket.recv()
+        print(response)
+
+        # If class selection is required
+        response_data = json.loads(response)
+        if "classes" in response_data:
+            print("Available classes:")
+            for i, class_name in enumerate(response_data["classes"], 1):
+                print(f"{i}. {class_name}")
+
+            class_choice = int(input("Select your class: ")) - 1
+            selected_class = response_data["classes"][class_choice]
+
+            # Send class selection to server
+            await websocket.send(
+                json.dumps({"action": "select_class", "class_name": selected_class})
+            )
+            response = await websocket.recv()
+            print(response)
+
+        # Load game state
+        await websocket.send(
+            json.dumps({"action": "load_game_state", "player": {"name": "player"}})
+        )
+        response = await websocket.recv()
+        print(response)
+
+
+if __name__ == "__main__":
+    asyncio.run(connect_to_server())

docker-compose.yml

@@ -0,0 +1,17 @@
+version: '3.8'
+
+services:
+  db:
+    image: postgres:latest
+    container_name: rpg_game_db
+    environment:
+      POSTGRES_DB: rpg_game
+      POSTGRES_USER: rpg_user
+      POSTGRES_PASSWORD: secure_password
+    ports:
+      - "5432:5432"
+    volumes:
+      - db_data:/var/lib/postgresql/data
+
+volumes:
+  db_data:

main.py

@@ -23,6 +23,8 @@
 from src.display.boss.boss_view import BossView
 import time
 from src.models.base_types import EffectResult
+from src.services.session_management import SessionManagementService
+from src.services.game_state import GameStateService
 
 # Configure logging
 logging.basicConfig(
@@ -62,26 +64,47 @@ def main():
     base_view = BaseView()
     boss_view = BossView()
     boss_service = BossService()
+    session_service = SessionManagementService()
+    game_state_service = GameStateService()
+
+    # Player authentication
+    session_service.show_login_screen()
+    player = session_service.authenticate_player()
+    if not player:
+        MessageView.show_error("Authentication failed. Exiting game.")
+        return
 
-    # Character creation
-    character_view.show_character_creation()
-    player_name = input().strip()
-
-    # Use character creation service
-    try:
-        player = CharacterCreationService.create_character(player_name)
-        if not player:
-            MessageView.show_error("Character creation failed: Invalid name provided")
+    # Load game state
+    game_state = game_state_service.load_game_state(player)
+    if game_state:
+        player = game_state["player"]
+        shop = game_state["shop"]
+    else:
+        # Character creation
+        character_view.show_character_creation()
+        player_name = input().strip()
+
+        # Use character creation service
+        try:
+            player = CharacterCreationService.create_character(player_name)
+            if not player:
+                MessageView.show_error(
+                    "Character creation failed: Invalid name provided"
+                )
+                return
+        except ValueError as e:
+            MessageView.show_error(f"Character creation failed: {str(e)}")
             return
-    except ValueError as e:
-        MessageView.show_error(f"Character creation failed: {str(e)}")
-        return
-    except Exception as e:
-        MessageView.show_error("An unexpected error occurred during character creation")
-        return
+        except Exception as e:
+            MessageView.show_error(
+                "An unexpected error occurred during character creation"
+            )
+            return
+
+        # Initialize shop
+        shop = Shop()
 
-    # Initialize shop
-    shop = Shop()
+    base_view.clear_screen()
 
     base_view.clear_screen()
 
@@ -222,6 +245,9 @@ def main():
             MessageView.show_info("\nThank you for playing! See you next time...")
             break
 
+        # Save game state after each turn
+        game_state_service.save_game_state(player, shop)
+
     if player.health <= 0:
         game_view.show_game_over(player)
 

migrations/README

@@ -0,0 +1 @@
+Generic single-database configuration.

migrations/env.py

@@ -0,0 +1,76 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = None
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(connection=connection, target_metadata=target_metadata)
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

migrations/script.py.mako

@@ -0,0 +1,26 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}