import pygame,sys import time import random pygame.init() #INitialize PyGame white = (255,255,255) black = (100,0,0) red = (255,0,0) window_width = 800 window_height = 600 gameDisplay = pygame.display.set_mode((window_width,window_height)) pygame.display.set_caption('slither') clock = pygame.time.Clock() FPS = 5 blockSize = 20 noPixel = 0

def myquit(): font = pygame.font.SysFont(None, 25, bold=True)

def drawGrid():

def snake(blockSize, snakelist): for size in snakelist: pygame.draw.rect(gameDisplay, black,[size[0]+5,size[1],blockSize,blockSize],2)

def message_to_screen(msg, color):

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

gameDisplay.blit(screen_text, [window_width/2, window_height/2])

def gameLoop():

gameExit = False

gameOver = False



lead_x = window_width/2

lead_y = window_height/2



change_pixels_of_x = 0

change_pixels_of_y = 0



snakelist = []

snakeLength = 1



randomAppleX = round(random.randrange(0, window_width-blockSize)/10.0)*10.0

randomAppleY = round(random.randrange(0, window_height-blockSize)/10.0)*10.0



while not gameExit:

    

    while gameOver == True:

        gameDisplay.fill(white)

        message_to_screen("Game over, press c to play again or Q to quit", red)

        pygame.display.update()



        for event in pygame.event.get():

            if event.type == pygame.QUIT:

                gameOver = False

                gameExit = True

                

            if event.type == pygame.KEYDOWN:

                if event.key == pygame.K_q:

                    gameExit = True

                    gameOver = False

                if event.key == pygame.K_c:

                    gameLoop()

        

    for event in pygame.event.get():

        if event.type == pygame.QUIT:

            gameExit = True



        if event.type == pygame.KEYDOWN:

            if event.key == pygame.K_ESCAPE:

                myquit()

            leftArrow = event.key == pygame.K_LEFT

            rightArrow = event.key == pygame.K_RIGHT

            upArrow = event.key == pygame.K_UP

            downArrow = event.key == pygame.K_DOWN

            

            if leftArrow:

                change_pixels_of_x = -blockSize

                change_pixels_of_y = noPixel

            elif rightArrow:

                change_pixels_of_x = blockSize

                change_pixels_of_y = noPixel

            elif upArrow:

                change_pixels_of_y = -blockSize

                change_pixels_of_x = noPixel

            elif downArrow:

                change_pixels_of_y = blockSize

                change_pixels_of_x = noPixel



        if lead_x >= window_width or lead_x < 0 or lead_y >= window_height or lead_y < 0:

            gameOver = True

               

    lead_x += change_pixels_of_x

    lead_y += change_pixels_of_y

    

    gameDisplay.fill(white)



    AppleThickness = 20



    print([int(randomAppleX),int(randomAppleY),AppleThickness,AppleThickness])

    pygame.draw.rect(gameDisplay, red, [randomAppleX,randomAppleY,AppleThickness,AppleThickness])



    allspriteslist = []

    allspriteslist.append(lead_x)

    allspriteslist.append(lead_y)

    snakelist.append(allspriteslist)



    if len(snakelist) > snakeLength:

        del snakelist[0]

        

    for eachSegment in snakelist [:-1]:

        if eachSegment == allspriteslist:

            gameOver = True

            

    snake(blockSize, snakelist)

    

    pygame.display.update()

    

    if lead_x >= randomAppleX and lead_x <= randomAppleX + AppleThickness:

        if lead_y >= randomAppleY and lead_y <= randomAppleY + AppleThickness:

            randomAppleX = round(random.randrange(0, window_width-blockSize)/10.0)*10.0

            randomAppleY = round(random.randrange(0, window_height-blockSize)/10.0)*10.0

            snakeLength += 1



         

    clock.tick(FPS)



pygame.quit()

quit()

gameLoop()