snake.pyw

#imports
import pygame
import time
import random

#initial variables
snake_speed = 15
    #window size
window_x = 720
window_y = 480
    #colors
black = pygame.Color(0,0,0)
white = pygame.Color(255,255,255)
red = pygame.Color(255,0,0)
green = pygame.Color(0,255,0)
blue = pygame.Color(0,0,255)

#initializing game
def inital():
    pygame.init()

inital()
pygame.display.set_caption("StarAssassin's PySnakes")
game_window = pygame.display.set_mode((window_x, window_y))
fps = pygame.time.Clock()

#snake and fruit
snake_position = [100,50]
snake_body = [  [100,50],
                    [90,50],
                    [80,50],
                    [70,50]
                ]
fruit_position = [random.randrange(1, (window_x//10)) *10,
             random.randrange(1, (window_y//10)) *10]
fruit_spawn = True
direction = 'RIGHT'

#score counter
score = 0
def show_score(choice, color, font, size):
    score_font = pygame.font.SysFont(font, size)
    score_surface = score_font.render(f'Score : {str(score)}', True, color)
    score_rect = score_surface.get_rect()
    game_window.blit(score_surface, score_rect)

#quit
def quitGAME():
    font1 = pygame.font.SysFont('times new roman', 50)
    quit_txt = font1.render('Qutting game...', True, red)
    quit_rect = quit_txt.get_rect()
    quit_rect.midtop = (window_x/2, window_y/4)
    game_window.blit(quit_txt, quit_rect)
    pygame.display.flip()
    time.sleep(2)
    pygame.quit()
    quit()

#gameover
def game_over():
    my_font = pygame.font.SysFont('times new roman', 50)
    game_over_surface = my_font.render(f'Your Score is : {str(score)}', True, red)
    game_over_rect = game_over_surface.get_rect()
    game_over_rect.midtop = (window_x/2, window_y/4)
    game_window.blit(game_over_surface, game_over_rect)
    pygame.display.flip()
    time.sleep(4)
    my_font2 = pygame.font.SysFont('times new roman', 25)
    continue_surf = my_font2.render('Press C to continue  |  Press ESC to quit', True, red)
    continue_rect = continue_surf.get_rect()
    continue_rect.midtop = (window_x/2, window_y/4)
    game_window.blit(continue_surf, continue_rect)
    pygame.display.flip()
    time.sleep(10)
    for event in pygame.event.get():
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_c:
                inital()
            if event.key == pygame.K_ESCAPE:
                quitGAME()


#main controls and functions
while True:
    
    for event in pygame.event.get():
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP:
                direction = "UP"
            if event.key == pygame.K_DOWN:
                direction = 'DOWN'
            if event.key == pygame.K_LEFT:
                direction = 'LEFT'
            if event.key == pygame.K_RIGHT:
                direction = "RIGHT"
            if event.key == pygame.K_ESCAPE:
                quitGAME()

    if direction == 'UP' and direction == 'DOWN':
        direction == 'UP'
    if direction == 'DOWN' and direction == 'UP':
        direction == 'DOWN'
    if direction == 'LEFT' and direction == 'RIGHT':
        direction == 'LEFT'
    if direction == 'RIGHT' and direction == 'LEFT':
        direction = 'RIGHT'
    
    if direction == 'UP':
        snake_position[1] -= 10
    if direction == 'DOWN':
        snake_position[1] += 10
    if direction == 'LEFT':
        snake_position[0] -= 10
    if direction == 'RIGHT':
        snake_position[0] += 10
    
    snake_body.insert(0, list(snake_position))
    if snake_position[0] == fruit_position[0] and snake_position[1] == fruit_position[1]:
        score += 10
        fruit_spawn = False
    else:
        snake_body.pop()
    if not fruit_spawn:
        fruit_position = [random.randrange(1, (window_x//10)) *10,
                     random.randrange(1, (window_y//10)) *10]
    fruit_spawn = True
    game_window.fill(black)
    
    for pos in snake_body:
        pygame.draw.rect(game_window, green, pygame.Rect(pos[0], pos[1], 10, 10))
    pygame.draw.rect(game_window, white, pygame.Rect(fruit_position[0], fruit_position[1], 10, 10))

    if snake_position[0] < 0 or snake_position[0] > window_x-10:
        game_over()
    if snake_position[1] < 0 or snake_position[1] > window_y-10:
        game_over()
    
    for block in snake_body[1:]:
        if snake_position[0] == block[0] and snake_position[1] == block[1]:
            game_over()
    
    show_score(1, white, 'times new roman', 20)

    pygame.display.update()
    fps.tick(snake_speed)