Introduction to pyglet library for game development in Python

Features

• No external dependencies or installation requirements: For development of most of the applications, pyglet does not need any external libraries or installation of packages which helps in simplifying distribution and installation
• Take advantage of multiple windows and multi-monitor desktops: Sometimes multi-monitor desktop setups are use for game development and pyglet is designed in such a way that it lets you use as many windows as needed and also allows fullscreen games and application across multiple screens.
• Load images, sound, music and video in almost any format
• pyglet is provided under the BSD open-source license, allowing you to use it for both commercial and other open-source projects with very little restriction.
• It supports development in Python 2 as well as Python 3

Installation

pip install pyglet

import pyglet

new_window = pyglet.window.Window()

label = pyglet.text.Label('Hello, World !',
                          font_name ='Cooper',
                          font_size = 16,
                          x = new_window.width//2, 
                          y = new_window.height//2,
                          anchor_x ='center', 
                          anchor_y ='center')

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

pyglet.app.run()

Explanation

1. Begin the program by importing the library:
   

    import pyglet 

2. Using the default constructor, we can create windows which display the app contents:
   

    new_window = pyglet.window.Window() 

3. Label is created to display the text Hello, World!:
   

   label = pyglet.text.Label('Hello, World !',
                             font_name ='Cooper',
                             font_size = 16,
                             x = new_window.width//2, 
                             y = new_window.height//2,
                             anchor_x ='center', 
                             anchor_y ='center')
   

4. The on_draw() event is used to draw its contents on to the window.The pyglet library provides several ways to attach event handlers to objects; a simple way is to use a decorator:
   

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

5. Finally to run the app the following line is appended at the end of the source code:
   

   pyglet.app.run()