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# libstormgames
A Python library to make creating audio games easier.
## Overview
`libstormgames` provides a comprehensive set of tools for developing accessible games with audio-first design. It handles common game development tasks including:
- Sound and music playback with positional audio
- Text-to-speech integration
- Configuration management
- Score tracking and high score tables
- Input handling and keyboard controls
- Menu systems and text display
- GUI initialization
## Installation
### Requirements
- pygame>=2.0.0
- pyperclip>=1.8.0
- requests>=2.25.0
- pyxdg>=0.27
- setproctitle>=1.2.0
- numpy>=1.19.0
- wxpython
#### Speech Providers (one required)
- Linux/Unix: `python-speechd` or `accessible-output2>=0.14`
- Windows/macOS: `accessible-output2>=0.14`
### Install from source
```bash
git clone https://git.stormux.org/storm/libstormgames
cd libstormgames
pip install -e .
```
## Getting Started
You can use libstormgames in two ways: the traditional function-based approach or the new class-based approach.
### Traditional Function-Based Approach
```python
#!/usr/bin/env python3
import libstormgames as sg
def main():
# Initialize the game
sounds = sg.initialize_gui("My First Audio Game")
# Welcome message
sg.speak("Welcome to My First Audio Game!")
# Create a scoreboard
scoreboard = sg.Scoreboard()
# Main game loop
def play_game():
sg.speak("Game started!")
scoreboard.increase_score(10)
sg.speak(f"Your score is {scoreboard.get_score()}")
scoreboard.add_high_score()
return "menu" # Return to menu after game ends
# Define menu options
while True:
choice = sg.game_menu(sounds, "play_game", "instructions", "credits", "donate", "exit_game")
if choice == "play_game":
play_game()
if __name__ == "__main__":
main()
```
### Modern Class-Based Approach
```python
#!/usr/bin/env python3
import libstormgames as sg
def main():
# Create and initialize a game
game = sg.Game("My First Audio Game").initialize()
# Welcome message (using fluent API)
game.speak("Welcome to My First Audio Game!")
# Main game loop
def play_game():
game.speak("Game started!")
game.scoreboard.increase_score(10)
game.speak(f"Your score is {game.scoreboard.get_score()}")
game.scoreboard.add_high_score()
return "menu"
# Define menu options
while True:
choice = sg.game_menu(game.sound.get_sounds(), "play_game", "instructions", "credits", "donate", "exit_game")
if choice == "play_game":
play_game()
if __name__ == "__main__":
main()
```
## Library Structure
The library is organized into modules, each with a specific focus:
- **config**: Configuration management
- **services**: Core services that replace global variables
- **sound**: Sound and music playback
- **speech**: Text-to-speech functionality
- **scoreboard**: High score tracking
- **input**: Input handling and dialogs
- **display**: Text display and GUI functionality
- **menu**: Menu systems
- **utils**: Utility functions and Game class
## Core Classes
### Game
The Game class provides a central way to manage all game systems:
```python
# Create and initialize a game
game = sg.Game("My Game").initialize()
# Use fluent API for chaining commands
game.speak("Hello").play_bgm("music/theme.ogg")
# Access components directly
game.scoreboard.increase_score(10)
game.sound.play_random("explosion")
# Display text
game.display_text(["Line 1", "Line 2"])
# Clean exit
game.exit()
```
### Services
The library includes several service classes that replace global variables:
```python
# Volume service manages all volume settings
volume = sg.VolumeService.get_instance()
volume.adjust_master_volume(0.1)
# Path service manages file paths
paths = sg.PathService.get_instance()
print(paths.game_path)
# Config service manages configuration
config = sg.ConfigService.get_instance()
```
### Config
Handles configuration file management with local and global settings.
```python
# Create a configuration manager
config = sg.Config("My Game")
# Access the local configuration
config.local_config.add_section("settings")
config.local_config.set("settings", "difficulty", "easy")
config.write_local_config()
# Read settings
config.read_local_config()
difficulty = config.local_config.get("settings", "difficulty")
```
### Sound
Manages sound loading and playback with positional audio support.
```python
# Create a sound manager
sound_system = sg.Sound("sounds/")
# Get the dictionary of loaded sounds
sounds = sound_system.get_sounds()
# Play a sound
sg.play_sound(sounds["explosion"])
# Play a sound with positional audio (player at x=5, object at x=10)
channel = sg.obj_play(sounds, "footsteps", 5, 10)
# Update sound position as player or object moves
channel = sg.obj_update(channel, 6, 10) # Player moved to x=6
# Stop the sound
channel = sg.obj_stop(channel)
# Play background music
sg.play_bgm("sounds/background.ogg")
# Adjust volume
sg.adjust_master_volume(0.1) # Increase master volume
sg.adjust_bgm_volume(-0.1) # Decrease background music volume
sg.adjust_sfx_volume(0.1) # Increase sound effects volume
```
### Speech
Provides text-to-speech functionality using available speech providers.
```python
# Create a speech manager (usually you'll use the global instance)
speech = sg.Speech()
# Speak text
speech.speak("Hello, world!")
# Or use the global function for convenience
sg.speak("Hello, world!")
# Speak without interrupting previous speech
sg.speak("This won't interrupt", interrupt=False)
# Clean up when done
speech.close()
```
### Scoreboard
Tracks scores and manages high score tables.
```python
# Create a scoreboard
scoreboard = sg.Scoreboard()
# Manipulate score
scoreboard.increase_score(10)
scoreboard.decrease_score(5)
current_score = scoreboard.get_score()
# Check for high score
position = scoreboard.check_high_score()
if position:
print(f"You're in position {position}!")
# Add high score (prompts for player name)
scoreboard.add_high_score()
# Get all high scores
high_scores = scoreboard.get_high_scores()
for entry in high_scores:
print(f"{entry['name']}: {entry['score']}")
```
## Key Functions
### Game Initialization and Control
```python
# Initialize game systems (traditional approach)
sounds = sg.initialize_gui("Game Title")
# Or use the Game class (modern approach)
game = sg.Game("Game Title").initialize()
# Pause the game (freezes until user presses backspace)
sg.pause_game()
# Check if user wants to exit
if sg.check_for_exit():
sg.exit_game()
# Exit the game properly
sg.exit_game()
```
### Menu System
```python
# Display a menu with options (functions should exist with these names)
choice = sg.game_menu(sounds, "play_game", "high_scores", "instructions", "credits", "exit_game")
# Display built-in instructions
sg.instructions()
# Display built-in credits
sg.credits()
# Open donation page
sg.donate()
# Interactive menu to learn available sounds
sg.learn_sounds(sounds)
```
### Text Display
```python
# Display text with navigation
sg.display_text([
"Line 1 of instructions",
"Line 2 of instructions",
"Line 3 of instructions"
])
# Display a simple message box
sg.messagebox("Game Over! You scored 100 points.")
# Get text input from user
name = sg.get_input("Enter your name:", "Player")
```
### Sound Effects
```python
# Play a random variation of a sound
sg.play_random(sounds, "explosion")
# Play positional sound with distance-based volume
sg.play_random_positional(sounds, "footsteps", player_x=5, object_x=10)
# Play directional sound (simplified left/right positioning)
sg.play_directional_sound(sounds, "voice", player_x=5, object_x=10)
# Play a sound as a cutscene (interrupts other sounds, waits until complete)
sg.cut_scene(sounds, "intro_speech")
# Play or update a falling sound
channel = sg.play_random_falling(sounds, "rock", player_x=5, object_x=8, start_y=10, currentY=5)
```
### Utility Functions
```python
# Check for game updates
update_info = sg.check_for_updates("1.0.0", "My Game", "https://example.com/version.json")
# Check compatibility with library version
is_compatible = sg.check_compatibility("1.0.0", "1.2.3")
# Sanitize a filename for any OS
safe_name = sg.sanitize_filename("User's File.txt")
# Calculate distance between points
distance = sg.distance_2d(x1=5, y1=10, x2=8, y2=15)
# Interpolation functions
mid_value = sg.lerp(start=0, end=10, factor=0.5) # Returns 5.0
smooth_value = sg.smooth_step(edge0=0, edge1=10, x=5) # Smooth transition
```
## Advanced Examples
### Using the Game Class (Modern Approach)
```python
import libstormgames as sg
import pygame
import random
def main():
# Create and initialize the game
game = sg.Game("My Advanced Game").initialize()
# Set up game environment
game.play_bgm("sounds/background.ogg")
# Main game loop
running = True
player_x = 5
while running:
# Process events
for event in pygame.event.get():
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
running = False
elif event.key == pygame.K_SPACE:
# Score points
game.scoreboard.increase_score(5)
game.speak(f"Score: {game.scoreboard.get_score()}")
# Update game state
player_x += random.uniform(-0.2, 0.2)
# Add random ambient sounds
if random.random() < 0.05:
sounds = game.sound.get_sounds()
if "ambient" in sounds:
sg.play_random_positional(sounds, "ambient", player_x,
player_x + random.uniform(-5, 5))
pygame.time.delay(50)
# Game over and cleanup
game.speak("Game over!")
game.exit()
if __name__ == "__main__":
main()
```
### Complex Sound Environment
```python
import libstormgames as sg
import time
import random
def create_sound_environment(player_x, player_y):
sounds = sg.initialize_gui("Sound Environment Demo")
# Place sound sources
water_x, water_y = 10, 5
fire_x, fire_y = 15, 8
wind_x, wind_y = 3, 12
# Play ambient sounds
water_channel = sg.obj_play(sounds, "water", player_x, water_x)
fire_channel = sg.obj_play(sounds, "fire", player_x, fire_x)
wind_channel = sg.obj_play(sounds, "wind", player_x, wind_x)
# Main loop
running = True
while running:
# Simulate player movement
player_x += random.uniform(-0.5, 0.5)
player_y += random.uniform(-0.5, 0.5)
# Update sound positions
water_channel = sg.obj_update(water_channel, player_x, water_x)
fire_channel = sg.obj_update(fire_channel, player_x, fire_x)
wind_channel = sg.obj_update(wind_channel, player_x, wind_x)
# Occasionally play random sound
if random.random() < 0.1:
sg.play_random_positional(sounds, "creature", player_x,
player_x + random.uniform(-5, 5))
# Check for exit
if sg.check_for_exit():
running = False
time.sleep(0.1)
# Clean up
sg.obj_stop(water_channel)
sg.obj_stop(fire_channel)
sg.obj_stop(wind_channel)
sg.exit_game()
```
### Complete Game Structure with Class-Based Architecture
```python
import libstormgames as sg
import pygame
import random
class MyGame:
def __init__(self):
# Create a Game instance that manages all subsystems
self.game = sg.Game("My Advanced Game").initialize()
# Game state
self.player_x = 5
self.player_y = 5
self.difficulty = "normal"
# Load settings
try:
self.difficulty = self.game.config_service.local_config.get("settings", "difficulty")
except:
self.game.config_service.local_config.add_section("settings")
self.game.config_service.local_config.set("settings", "difficulty", "normal")
self.game.config_service.write_local_config()
def play_game(self):
self.game.speak(f"Starting game on {self.difficulty} difficulty")
self.game.play_bgm("sounds/game_music.ogg")
# Game loop
running = True
while running:
# Update game state
self.player_x += random.uniform(-0.2, 0.2)
# Handle input
for event in pygame.event.get():
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
running = False
elif event.key == pygame.K_SPACE:
self.game.scoreboard.increase_score()
self.game.speak(f"Score: {self.game.scoreboard.get_score()}")
# Add some random sounds
if random.random() < 0.05:
sounds = self.game.sound.get_sounds()
if "ambient" in sounds:
sg.play_random_positional(sounds, "ambient",
self.player_x, self.player_x + random.uniform(-10, 10))
pygame.time.delay(50)
# Game over
position = self.game.scoreboard.check_high_score()
if position:
self.game.speak(f"New high score! Position {position}")
self.game.scoreboard.add_high_score()
return "menu"
def settings(self):
options = ["easy", "normal", "hard", "back"]
current = options.index(self.difficulty) if self.difficulty in options else 1
while True:
self.game.speak(f"Current difficulty: {options[current]}")
# Wait for input
event = pygame.event.wait()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_UP and current > 0:
current -= 1
elif event.key == pygame.K_DOWN and current < len(options) - 1:
current += 1
elif event.key == pygame.K_RETURN:
if options[current] == "back":
return
self.difficulty = options[current]
self.game.config_service.local_config.set("settings", "difficulty", self.difficulty)
self.game.config_service.write_local_config()
self.game.speak(f"Difficulty set to {self.difficulty}")
return
elif event.key == pygame.K_ESCAPE:
return
def run(self):
# Main menu loop
while True:
sounds = self.game.sound.get_sounds()
choice = sg.game_menu(sounds, "play_game", "settings",
"instructions", "credits", "donate", "exit_game")
if choice == "play_game":
self.play_game()
elif choice == "settings":
self.settings()
elif choice == "instructions":
sg.instructions()
elif choice == "credits":
sg.credits()
elif choice == "donate":
sg.donate()
elif choice == "exit_game":
self.game.exit()
# Run the game
if __name__ == "__main__":
game = MyGame()
game.run()
```
## Best Practices
1. **Modern vs Traditional Approach**:
- New projects: Use the Game class for better organization
- Existing projects: Continue with global functions for compatibility
- Both approaches are fully supported
2. **Always clean up resources**:
- Use `exit_game()` or `game.exit()` when exiting to ensure proper cleanup
- Stop sounds that are no longer needed
3. **Volume control**:
- Implement the Alt+key volume controls in your game
- Use volume services for better control
4. **Speech feedback**:
- Provide clear speech feedback for all actions
- Use the `interrupt` parameter to control speech priority
5. **Sound positioning**:
- Use positional audio to create an immersive environment
- Update object positions as the game state changes
6. **Configuration**:
- Save user preferences using the Config class
- Load settings at startup
## Troubleshooting
### No Sound
- Ensure pygame mixer is properly initialized
- Check if sound files exist in the correct directory
- Verify file formats (OGG and WAV are supported)
### No Speech
- Make sure at least one speech provider is installed
- Linux/Unix: `python-speechd` or `accessible-output2`
- Windows/macOS: `accessible-output2`
- Check if pygame display is initialized properly
### Input Issues
- Ensure pygame is properly handling events
- Check event loop for proper event handling
## Contributing
Contributions are welcome! Please feel free to submit a Pull Request.
## License
This project is licensed under the GPL v3 License - see the LICENSE file for details.
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