game.py

aimport pygame
import time
import random

pygame.init()

# defines the width and height of the display
display_width = 800
display_height = 600

white = (255, 255, 255)
d_white = (250, 250, 250)
black = (0, 0, 0)
teal = (0, 128, 128)
blue_black = (50, 50, 50)
game_display = pygame.display.set_mode((display_width, display_height))

factor = 10

food_x = random.randrange(5, display_width - 5)
food_y = random.randrange(5, display_height - 5)
print(food_x, food_y)
score = 60
clock = pygame.time.Clock()


class snake_body:
    x = 0
    y = 0


    def __init__(self, x_position, y_position):
        self.x = x_position
        self.y = y_position


snake = [snake_body(20, 20), snake_body(20, 30), snake_body(20, 40), snake_body(20, 50), snake_body(20, 60),
         snake_body(20, 70), snake_body(20, 80), snake_body(20, 90), snake_body(20, 100), snake_body(20, 110),
         snake_body(20, 120), snake_body(20, 130), snake_body(20, 140), snake_body(20, 150), snake_body(20, 160),
         snake_body(20, 170)]


# class food():
#     x=0
#     y=0
#
#     def __init__(self):






def update_snake(score):
    i = len(snake) - 1


    while i > 0:
        snake[i].x = snake[i - 1].x
        snake[i].y = snake[i - 1].y
        i -= 1


def check_death():
    if snake[0].x < 1 or snake[0].x > display_width or snake[0].y < 1 or snake[0].y > display_height:
        pygame.quit()
        quit()
    for i in range(1, len(snake)):
        if snake[0].x == snake[i].x and snake[0].y == snake[i].y:
            pygame.quit()
            quit()


def drawsnake(snake):
    for i in range(len(snake)):
        pygame.draw.rect(game_display, teal, (snake[i].x, snake[i].y, factor, factor))



x = 0
y = 0
x_change = 0
y_change = 0
first_time = True
eat = True
while True:

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            quit()
        if event.type == pygame.KEYDOWN:
            first_time = False
            if event.key == pygame.K_a:
                if x_change is not 10:
                    x_change = -10
                    y_change = 0
            elif event.key == pygame.K_d:
                if x_change != -10:
                    x_change = 10
                    y_change = 0
            elif event.key == pygame.K_w:
                if y_change is not 10:
                    x_change = 0
                    y_change = -10
            elif event.key == pygame.K_s:
                if y_change != -10:
                    x_change = 0
                    y_change = 10
            elif event.key == pygame.K_c:
                x_change = 0
                y_change = 0

    if not first_time:
        update_snake(score)
    if score % 10 == 0 and eat:
        snake.append(snake_body(snake[len(snake)-1].x, snake[len(snake)-1].y))
        print(len(snake))
        eat = False

    snake[0].x += x_change
    snake[0].y += y_change
    if snake[0].x < food_x+10 and snake[0].x > food_x-10 and snake[0].y < food_y+10 and snake[0].y >food_y-10:
        score = score + 10
        food_x = random.randrange(5, display_width - 5)
        food_y = random.randrange(5, display_height - 5)
        eat = True

    check_death()
    game_display.fill(white)


    pygame.draw.rect(game_display, black, (food_x, food_y, factor, factor))
    drawsnake(snake)

    pygame.display.update()
    time.sleep(0.035)
    clock.tick(60)