11. Python Game Development in Hindi - Detecting Boundaries

11. Python Game Development in Hindi - Detecting Boundaries

Code : 

import pygame

pygame.init()

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((800,600))

pygame.display.set_caption('Snake Game')

pygame.display.update()

gameClose = False

start_x = 400

start_y = 300

update_x = 0

update_y = 0

clk = pygame.time.Clock()

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 = -15

                update_y = 0

            if event.key == pygame.K_RIGHT:

                update_x = +15

                update_y = 0

            if event.key == pygame.K_UP:

                update_y = -15

                update_x = 0

            if event.key == pygame.K_DOWN:

                update_y = +15

                update_x = 0

    if start_x >= 800 or start_x < 0 or start_y >= 600 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,15,15])

    pygame.display.update()

    clk.tick(13)

pygame.quit()

quit()

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