import pygame  # Importing the pygame library for game development
import sys  # Importing the sys module to access system-specific parameters and functions
 
# Initialize Pygame
pygame.init()
 
# Creating a display surface with dimensions 400x300 pixels
display = pygame.display.set_mode((400, 300))
background = pygame.Surface((400, 300))  # Creating a surface for the background
 
# Creating a font object using the Verdana font with a size of 20 pixels
font = pygame.font.SysFont("Verdana", 20)

# Initializing text_value as an empty string
text_value = ""

# Rendering the text to be displayed, initially empty
text = font.render(text_value, True, (255, 255, 255))  # Rendering the text in white color
 
# Main game loop
while True:
    # Getting the current position of the mouse
    mouse_pos = pygame.mouse.get_pos()
    
    # Handling events
    for event in pygame.event.get():
        # Checking if the window close button is clicked
        if event.type == pygame.QUIT:
            pygame.quit()  # Quitting Pygame
            sys.exit()  # Exiting the program
        # Handling key press events
        if event.type == pygame.KEYDOWN:
            # Checking if the backspace key is pressed
            if event.key == pygame.K_BACKSPACE:
                text_value = text_value[:-1]  # Removing the last character from text_value
                text = font.render(text_value, True, (255, 255, 255))  # Rendering the updated text
            # Checking if the return key is pressed
            if event.key == pygame.K_RETURN:
                print(text_value)  # Printing the current text_value to the console
        # Handling text input events
        if event.type == pygame.TEXTINPUT:
            text_value += event.text  # Appending the entered text to text_value
            text = font.render(text_value, True, (255, 255, 255))  # Rendering the updated text
 
    # Blitting the background onto the display surface
    display.blit(background, (0, 0))
    # Blitting the rendered text onto the display surface at position (100, 150)
    display.blit(text, (100, 150))
    # Updating the display
    pygame.display.update()