2d GAME.py

# import pygame module in this program
import pygame
from pygame import mixer

# activate the pygame library .
# initiate pygame and give permission
# to use pygame's functionality.
pygame.init()
# create the display surface object
# of specific dimension..e(500, 500).
win = pygame.display.set_mode((500, 500))
#soundtrack
mixer.music.load("backsound.wav")
mixer.music.play(-2)
#background
background = pygame.image.load("B.png")

# set the pygame window name
pygame.display.set_caption("GAMES")

# object current co-ordinates
x = 200
y = 200
# dimensions of the object
width = 20
height = 20

# velocity / speed of movement
vel = 20

# Indicates pygame is running
run = True

# infinite loop
while run:
    # creates time delay of 10ms
    pygame.time.delay(80)

    # iterate over the list of Event objects
    # that was returned by pygame.event.get() method.
    for event in pygame.event.get():

        # if event object type is QUIT
        # then quitting the pygame
        # and program both.
        if event.type == pygame.QUIT:
            # it will make exit the while loop
            run = False
    # stores keys pressed
    keys = pygame.key.get_pressed()

    # if left arrow key is pressed
    if keys[pygame.K_LEFT] and x > 0:
        # decrement in x co-ordinate
        x -= vel

        # if left arrow key is pressed
    if keys[pygame.K_RIGHT] and x < 500 - width:
        # increment in x co-ordinate
        x += vel

        # if left arrow key is pressed
    if keys[pygame.K_UP] and y > 0:
        # decrement in y co-ordinate
        y -= vel

        # if left arrow key is pressed
    if keys[pygame.K_DOWN] and y < 500 - height:
        # increment in y co-ordinate
        y += vel

        # completely fill the surface object
    # with black colour
    win.fill((0, 0, 0))
    win.blit(background,(0, 0))
    # drawing object on screen which is rectangle here
    pygame.draw.rect(win, (255, 0, 0), (x, y, width, height))

    # it refreshes the window
    pygame.display.update()

# closes the pygame window
pygame.quit()