Day-6

import pygame
import random

pygame.init()
clock = pygame.time.Clock()

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

#CAPTION
pygame.display.set_caption("SNAKE GAME")

#SNAKE KI POSITIONS
snake_pos = [[400,300],[420,300],[440,300]]

#APPLE KI POSITION
#apple_pos = [100,100]
apple_pos = [(random.randint(100,700)//20)*20, (random.randint(100,500)//20)*20]

#SCORE
score = 0

#DIRECTIONS
step = 20
up = (0, -step)
left = (-step,0)
right = (step,0)
down = (0,step)

direction = left

#FONT
font = pygame.font.SysFont('Arial', 30)

timer = 0
running = True

while running:
    screen.fill((20,150,20))

    #EVENT FETCHER
    for event in pygame.event.get():

        #QUIT
        if event.type == pygame.QUIT:
            running = False

        #KEYDOWN
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP:
                print("UP")
                direction = up
            if event.key == pygame.K_DOWN:
                print("DOWN")
                direction = down
            if event.key == pygame.K_LEFT:
                print("LEFT")
                direction = left
            if event.key == pygame.K_RIGHT:
                print("RIGHT")
                direction = right


    #snake_pos = [[snake_pos[0][0]+direction[0], snake_pos[0][1] + direction[1]]]+snake_pos[:-1]

    timer += 1
    if timer == 6:
        snake_pos = [[snake_pos[0][0]+direction[0], snake_pos[0][1] + direction[1]]]+snake_pos[:-1]
        timer = 0


    #IF SNAKE EATS APPLE
    if snake_pos[0] == apple_pos:
        apple_pos = [(random.randint(100,700)//20)*20, (random.randint(100,500)//20)*20]
        snake_pos.append(snake_pos[-1])
        score += 1


    #SNAKE DEATH
    for i in range(1, len(snake_pos)):
        if snake_pos[0] == snake_pos[i]:
            print("DEAD!")
            running = False

        #VERTICAL BOUNDARY
        if 800 <= snake_pos[0][0] or snake_pos[0][0] <= 0:
            print("DEAD!")
            running = False

        #HORIZONTAL BOUNDARY
        if 0 >= snake_pos[0][1] or snake_pos[0][1] >= 600:
            print("DEAD!")
            running = False

    #SNAKE PRINT
    for x,y in snake_pos:
        pygame.draw.circle(screen, (0,0,200), (x,y), 10)

    #APPLE PRINT
    pygame.draw.circle(screen, (200,0,0), apple_pos, 10)

    #pygame.draw.circle(screen, (0,0,200), (400,300), 10)
    #pygame.draw.circle(screen, (0,0,200), (420,300), 10)
    #pygame.draw.circle(screen, (0,0,200), (440,300), 10)

    #SCORE PRINT
    text = font.render( "SCORE: " + str(score), True, (255,255,255) )
    screen.blit(text, (0,0))

    clock.tick(30)
    pygame.display.update()