import pygame

import random

import sys

from pygame.locals import *

def collide(x1, x2, y1, y2, wh):

w1 = 20

w2 = wh

h2 = wh

h1 = 20

if x1+w1 > x2 and x1 < x2+w2 and y1+h1 > y2 and y1 < y2+h2:

return True

else:

return False

def die(screen, score):

f = pygame.font.SysFont('Monospace', 30)

t = f.render('YOUR SCORE IS : '+str(score), True, (0, 0, 0))

screen.blit(t, (10, 270))

pygame.display.update()

pygame.time.wait(2000)

sys.exit(0)

xs = [290, 290, 290, 290, 290]

ys = [290, 270, 250, 230, 210]

dirs = 0

score = 0

applepos = (random.randint(0, 590), random.randint(0, 590))

pygame.init()

s = pygame.display.set_mode((600, 600))

pygame.display.set_caption('SNAKE')

appleimage = pygame.Surface((10, 10))

appleimage.fill((0, 255, 0))

img = pygame.Surface((20, 20))

img.fill((255, 0, 0))

f = pygame.font.SysFont('Monospace', 20)

clock = pygame.time.Clock()

while True:

clock.tick(10)

for e in pygame.event.get():

if e.type == QUIT:

sys.exit(0)

elif e.type == KEYDOWN:

if e.key == K_UP and dirs != 0:

dirs = 2

elif e.key == K_DOWN and dirs != 2:

dirs = 0

elif e.key == K_LEFT and dirs != 1:

dirs = 3

elif e.key == K_RIGHT and dirs != 3:

dirs = 1

i = len(xs)-1

while i >= 2:

if collide(xs[0], xs[i], ys[0], ys[i], 20):

die(s, score)

i -= 1

if collide(xs[0], applepos[0], ys[0], applepos[1], 10):

score += 1

xs.append(700)

ys.append(700)

applepos = (random.randint(0, 590), random.randint(0, 590))

if xs[0] < 0 or xs[0] > 580 or ys[0] < 0 or ys[0] > 580:

die(s, score)

i = len(xs)-1

while i >= 1:

xs[i] = xs[i-1]

ys[i] = ys[i-1]

i -= 1

if dirs == 0:

ys[0] += 20

elif dirs == 1:

xs[0] += 20

elif dirs == 2:

ys[0] -= 20

elif dirs == 3:

xs[0] -= 20

s.fill((255, 255, 255))

for i in range(0, len(xs)):

s.blit(img, (xs[i], ys[i]))

s.blit(appleimage, applepos)

t = f.render(str(score), True, (0, 0, 0))

s.blit(t, (10, 10))

pygame.display.update()