PYGLET – Updating Sprite

In this article we will see how we can update the sprite in PYGLET module in python. Pyglet is easy to use but powerful library for developing visually rich GUI applications like games, multimedia etc. A window is a “heavyweight” object occupying operating system resources. Windows may appear as floating regions or can be set to fill an entire screen (fullscreen). A sprite is an instance of an image displayed on-screen. Multiple sprites can display the same image at different positions on the screen. Sprites can also be scaled larger or smaller, rotated at any angle and drawn at a fractional opacity. Image is loaded with the help of image module of pyglet. Updating means to changing the properties of sprite, properties can be size, position etc.

We can create a window and sprite object with the help of commands given below

# creating a window
window = pyglet.window.Window(width, height, title)

# creating a sprite object
sprite = pyglet.sprite.Sprite(img, x, y)

In order to create window we use update method with sprite object

Syntax : sprite.update(x=None, y=None, rotation=None, scale=None, scale_x=None, scale_y=None)

Argument : It takes optional argument i.e x, y co-ordinates (int), rotation (float), scale (float), horizontal scale (float), vertical scale (float)



Return : It returns None

Below is the implementation

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# importing pyglet module 
import pyglet 
import pyglet.window.key as key
    
# width of window 
width = 500
    
# height of window 
height = 500
    
# caption i.e title of the window 
title = "Geeksforgeeks"
    
# creating a window 
window = pyglet.window.Window(width, height, title) 
    
# text  
text = "Welcome to GeeksforGeeks"
   
# creating label with following proeprties
# font = cooper
# position = 250, 150
# anchor position = center
label = pyglet.text.Label(text, 
                          font_name ='Cooper'
                          font_size = 16
                          x = 250,  
                          y = 150
                          anchor_x ='center',  
                          anchor_y ='center')
  
  
# creating a batch 
batch = pyglet.graphics.Batch()
  
# loading geeksforgeeks image
image = pyglet.image.load('gfg.png')
  
  
  
# creating sprite object
# it is instance of an image displayed on-screen
sprite = pyglet.sprite.Sprite(image, x = 200, y = 230)
    
# on draw event 
@window.event 
def on_draw(): 
        
    # clear the window 
    window.clear() 
        
    # draw the label
    label.draw() 
      
    # draw the image on screen
    sprite.draw()
        
# key press event     
@window.event 
def on_key_press(symbol, modifier): 
    
    # key "C" get press 
    if symbol == key.C: 
          
        # printng the message
        print("Key : C is pressed")
          
# image for icon 
img = image = pyglet.resource.image("gfg.png"
  
# setting image as icon 
window.set_icon(img) 
  
# updating the sprite
# x, y = 10, 300
# rotation = 45
# scale = 2
sprite.update(100, 300, 45, 2)
  
  
     
# start running the application 
pyglet.app.run() 

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Output :

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