lesson_one.py

import math
import random

import pygame
from pygame import mixer

# Intialize the pygame
pygame.init()

# create the screen
screen = pygame.display.set_mode((800, 600))

# Background
background = pygame.image.load('background.png')

# Sound
mixer.music.load("background.wav")
mixer.music.play(-1)

# Caption and Icon
pygame.display.set_caption("Space Invader")
icon = pygame.image.load('ufo.png')
pygame.display.set_icon(icon)

# Player
playerImg = pygame.image.load('player.png')
playerX = 370
playerY = 480
playerX_change = 0

def player(x, y):
    screen.blit(playerImg, (x, y))


# Game Loop
running = True
while running:

    # clear screen with RGB = Red, Green, Blue
    screen.fill((0, 0, 0))

    # Background Image
    screen.blit(background, (0, 0))

    # support quiting 
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    # draw player
    player(playerX, playerY)

    # update screen
    pygame.display.update()