Master Pyglet: Build Games, Audio, and Video with Python

Introduction

Unlike pygame, pyglet is simpler and more lightweight, similar to the difference between Django and Flask, making it an attractive choice for quick game development.

1. Installation

pip install pyglet

2. Basic Usage

# import module
import pyglet

You can list installed packages, inspect modules, and view pyglet's attributes:

pip list

import sys
print(sys.modules.keys())

print(dir(pyglet))

Key window parameters include width, height, caption, resizable, style, fullscreen, visible, vsync, file_drops, display, screen, config, context, and mode.

width: width
height: height
caption: title
resizable: whether resizable
style: style
fullscreen: fullscreen
visible: visible
vsync: vsync
file_drops: file drops
display: display device
screen: screen
config: config
context: context
mode: mode

Creating a simple window:

pyglet.window.Window(600, 600)  # create a 600×600 window
pyglet.app.run()               # start the app

1. Adding Text

Use pyglet.text.Label to display text with various styling options.

label = pyglet.text.Label('Hello',
                          font_size=40,
                          x=win.width//2, y=win.height//2,
                          anchor_x='center', anchor_y='center')

@win.event
def on_draw():
    win.clear()
    label.draw()

pyglet.app.run()

2. Adding Images

image = pyglet.image.load('2.jpg')
@win.event
def on_draw():
    win.clear()
    image.blit(0, 0)

Alternatively, load via resources: image = pyglet.resource.image('2.jpg') Set image search path:

pyglet.resource.path = ['./images']
pyglet.resource.reindex()
image = pyglet.resource.image('1.jpg')

3. Keyboard Events

@win.event
def on_key_press(symbol, modifiers):
    if symbol == key.W:
        print('forward')
    elif symbol == key.S:
        print('backward')
    elif symbol == key.A:
        print('left')
    elif symbol == key.D:
        print('right')
    if modifiers & key.MOD_CTRL:
        print('over')

4. Mouse Events

@win.event
def on_mouse_motion(x, y, dx, dy):
    print('move')
@win.event
def on_mouse_press(x, y, button, modifiers):
    print('mouse down')
@win.event
def on_mouse_release(x, y, button, modifiers):
    print('mouse up')
@win.event
def on_mouse_drag(x, y, dx, dy, buttons, modifiers):
    print('drag')
@win.event
def on_mouse_enter(x, y):
    print('enter')
@win.event
def on_mouse_leave(x, y):
    print('leave')
@win.event
def on_mouse_scroll(x, y, scroll_x, scroll_y):
    print('scroll')

5. Input Text Event

@win.event
def on_text(text):
    if text == 'i love you':
        print('i love you too')

4. Window Events

@win.event
def on_resize(width, height):
    # handle resize
    pass

Encapsulate in a subclass:

class MyWindow(pyglet.window.Window):
    def on_resize(self, width, height):
        self.width = 200
        self.height = 100
    def on_text(self, text):
        aa = input('shuru:')
        if aa == 'I love you':
            print('i love you too')
    def on_key_press(self, symbol, modifiers):
        if symbol == key.W:
            print('forward')
            self.width += 100
        # other keys...

5. Music Playback

# Load and play a wav file
sound = pyglet.media.load('11.wav', streaming=False)
sound.play()
# Using a Player for queueing
player = pyglet.media.Player()
player.queue(sound)
player.play()
# Add multiple tracks
sound1 = pyglet.media.load('2.wav', streaming=False)
player.queue(sound1)
player.play()
# Loop playback with a generator
def loop():
    while True:
        yield sound
        yield sound1
player.queue(loop())
player.play()

6. Video Playback

# Load video and display in a window
video = pyglet.media.load('12.mp4')
player = pyglet.media.Player()
player.queue(video)
player.play()
@win.event
def on_draw():
    win.clear()
    player.get_texture().blit(30, 60)

Both pyglet.media.load and pyglet.resource.media can be used for video.

Conclusion

pyglet provides a versatile, lightweight framework for creating games and handling multimedia such as audio and video, offering many useful examples beyond the basics presented here.