12. Python Game Development in Hindi - Avoid Hard Coding

Code :

import pygame

import time

pygame.init()

game_width = 800

game_height = 600

white = (255,255,255)

black = (0,0,0)

red = (255,0,0)

green = (0,255,0)

blue = (0,0,255)

gameWindow = pygame.display.set_mode((game_width,game_height))

pygame.display.set_caption('Snake Game')

pygame.display.update()

gameClose = False

block = 15

FPS = 20

start_x = game_width/2

start_y = game_height/2

update_x = 0

update_y = 0

clk = pygame.time.Clock()

font = pygame.font.SysFont(None,30)

def message_to_screen(msg,color):

    screen_text = font.render(msg,True,color)

    gameWindow.blit(screen_text,[game_width/2.4,game_height/2])

background_image = pygame.image.load("background.jpg").convert()

while not gameClose:

    for event in pygame.event.get():

        if event.type == pygame.QUIT:

            gameClose = True

        if event.type == pygame.KEYDOWN:

            if event.key == pygame.K_LEFT:

                update_x = -block

                update_y = 0

            if event.key == pygame.K_RIGHT:

                update_x = +block

                update_y = 0

            if event.key == pygame.K_UP:

                update_y = -block

                update_x = 0

            if event.key == pygame.K_DOWN:

                update_y = +block

                update_x = 0

    if start_x >= game_width or start_x < 0 or start_y >= game_height or start_y < 0:

        gameClose = True

    start_x += update_x

    start_y += update_y

    gameWindow.blit(background_image,[0,0])

    pygame.draw.rect(gameWindow,blue,[start_x,start_y,block,block])

    pygame.display.update()

    clk.tick(FPS)

message_to_screen("You loose!!!!!",red)

pygame.display.update()

time.sleep(5)

pygame.quit()

quit()

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