ShadowLib

A Python SDK for Old School RuneScape (OSRS) bot development that communicates with RuneLite via a high-performance bridge. The architecture mirrors the game's interface, making it intuitive for OSRS developers.

Requirements

• Python 3.12+
• Linux with inotify support (required for event system)
• RuneLite with ShadowBot plugin running

Features

• Game-Native Structure: Directory layout mirrors OSRS client interface (tabs, interfaces, world)
• Event-Driven Architecture: Zero-CPU inotify-based event system for real-time game state
• Singleton Pattern: All modules are singletons with lazy initialization
• Type-Safe: Full type hints with IDE autocomplete support
• Auto-Generated Constants: ItemID, NpcID, ObjectID, InterfaceID, and more
• 3D Projection: Convert local/world coordinates to screen coordinates

Installation

# Clone the repository
git clone https://github.com/shadowbot/shadowlib.git
cd shadowlib

# Install with development dependencies
pip install -e ".[dev]"

# Install pre-commit hooks
pre-commit install

Quick Start

from shadowlib.client import client

# Client auto-connects on import and starts event consumer
# All modules are singletons - no instantiation needed

# Access inventory
items = client.tabs.inventory.getItems()
for item in items:
    print(f"{item.name}: {item.quantity}")

# Check player state
pos = client.player.position
print(f"Player at: {pos}")

# Use bank interface
if client.interfaces.bank.isOpen():
    client.interfaces.bank.depositAll()

# Direct module access (alternative pattern)
from shadowlib.tabs.inventory import inventory
from shadowlib.input.mouse import mouse

inventory.clickItem(995)  # Click coins
mouse.leftClick(100, 200)

Architecture

Module Structure

shadowlib/
├── client.py           # Main singleton - auto-connects to RuneLite bridge
├── globals.py          # Global accessors (getClient, getApi, getEventCache)
│
├── tabs/               # Side panel tabs (14 tabs)
│   ├── inventory.py    # Inventory management
│   ├── equipment.py    # Worn equipment
│   ├── skills.py       # Skill levels and XP
│   ├── prayer.py       # Prayer activation
│   ├── magic.py        # Spellbook
│   ├── combat.py       # Combat options
│   └── ...             # friends, settings, logout, etc.
│
├── interfaces/         # Overlay windows
│   ├── bank.py         # Bank interface
│   └── ...             # GE, shop, dialogue (planned)
│
├── world/              # 3D world entities
│   ├── ground_items.py # Items on the ground
│   └── projection.py   # Coordinate projection (local → screen)
│
├── input/              # OS-level input
│   ├── mouse.py        # Mouse control
│   ├── keyboard.py     # Keyboard input
│   └── runelite.py     # RuneLite window management
│
├── interactions/       # Game interactions
│   └── menu.py         # Right-click menu handling
│
├── player/             # Player state
│   └── player.py       # Position, stats, status
│
├── navigation/         # Movement systems
│   └── pathfinder.py   # Pathfinding (planned)
│
├── types/              # Type definitions
│   ├── item.py         # Item dataclass
│   ├── widget.py       # Widget mask builder
│   ├── packed_position.py  # Coordinate packing
│   └── ...
│
├── utilities/          # Helper functions
│   ├── timing.py       # sleep, waitUntil
│   └── text.py         # Text utilities
│
└── _internal/          # Internal implementation
    ├── api.py          # RuneLite bridge API
    ├── query_builder.py # Fluent query interface
    ├── cache/          # Event cache and state builder
    ├── events/         # Inotify event consumer
    └── resources/      # Varps, objects database

Singleton Pattern

All modules use the singleton pattern with __new__ + _init():

# Two equivalent access patterns:

# Via client namespace
from shadowlib.client import client
client.tabs.inventory.getItems()

# Direct import
from shadowlib.tabs.inventory import inventory
inventory.getItems()

Event System

The SDK uses an inotify-based event system for zero-CPU-usage when idle:

from shadowlib.client import client

# Access cached game state (updated automatically)
tick = client.cache.tick
energy = client.cache.energy
position = client.cache.position

# Get recent events
chats = client.cache.getRecentEvents('chat_message', n=10)
stats = client.cache.getRecentEvents('stat_changed', n=5)

# Access varps/varbits
quest_points = client.cache.getVarp(101)

# Check data freshness
if client.cache.isFresh(max_age=1.0):
    print(f"Data age: {client.cache.getAge():.2f}s")

Event Channels:

Projection System

Convert local/world coordinates to screen coordinates:

from shadowlib.world.projection import projection

# Auto-configured from events - just use it
screen_pos = projection.localToCanvasSingle(localX, localY, plane)
if screen_pos:
    screenX, screenY = screen_pos
    print(f"Screen position: ({screenX}, {screenY})")

# Batch projection
import numpy as np
xs = np.array([1000, 2000, 3000])
ys = np.array([1000, 2000, 3000])
screenX, screenY, valid = projection.localToCanvas(xs, ys, plane=0)

Query Builder

Direct RuneLite API access with fluent interface:

from shadowlib.client import client

# Build and execute queries
q = client.query()
result = q.execute({
    "inventory": q.client.getItemContainer(93),
    "position": q.localPlayer.getWorldLocation(),
    "health": q.localPlayer.getHealthRatio()
})

Code Style

Naming Conventions

Dependencies

# Use dependency injection with global fallback
class Inventory:
    def __init__(self, client=None):
        self.client = client or getClient()

Development

Running Tests

pytest                           # All tests
pytest --cov=shadowlib           # With coverage
pytest tests/test_inventory.py   # Specific file
pytest -k "test_bank"            # Pattern match

Linting and Formatting

ruff check .           # Lint
ruff check --fix .     # Auto-fix
ruff format .          # Format
python check_naming.py # Verify naming conventions

Pre-commit Hooks

pre-commit install       # Install hooks
pre-commit run --all-files  # Run manually

Generated Files

On first import, ShadowLib downloads and generates:

~/.cache/shadowlib/
├── generated/           # Proxy classes, constants
│   ├── constants/       # ItemID, NpcID, ObjectID, etc.
│   └── proxies/         # API proxy classes
└── data/                # Game data
    ├── api_data.json    # API metadata
    ├── varps.json       # Varp definitions
    └── objects.json     # Object database

Contributing

1. Fork the repository
2. Create a feature branch (git checkout -b feat/new-feature)
3. Follow naming conventions and code style
4. Write tests for new functionality
5. Commit with conventional commits (feat:, fix:, etc.)
6. Open a Pull Request

See CONTRIBUTING.md for detailed guidelines.

License

MIT License - see LICENSE file for details.