snakegame

game imports

import pygame, sys, random, time

check for initializing errors

check_errors = pygame.init() if check_errors[1] > 0: print("(!) Had {0} initializing errors, exiting...".format(check_errors[1])) sys.exit(-1) else: print("(+) PyGame successfully initialized!")

Play surface

playSurface = pygame.display.set_mode((720, 460)) pygame.display.set_caption('Snake game!')

Colors

red = pygame.Color(255, 0, 0) # gameover green = pygame.Color(0, 255, 0) #snake black = pygame.Color(0, 0, 0) #score white = pygame.Color(255, 255, 255) #background brown = pygame.Color(165, 42, 42) #food

FPS controller

fpsController = pygame.time.Clock()

Important varibles

snakePos = [100, 50] snakeBody = [[100,50], [90,50], [80,50]]

foodPos = [random.randrange(1,72)*10,random.randrange(1,46)*10] foodSpawn = True

direction = 'RIGHT' changeto = direction

score = 0

Game over function

def gameOver(): myFont = pygame.font.SysFont('monaco', 72) GOsurf = myFont.render('Game over!', True, red) GOrect = GOsurf.get_rect() GOrect.midtop = (360, 15) playSurface.blit(GOsurf,GOrect) showScore(0) pygame.display.flip()

time.sleep(4)
pygame.quit() #pygame exit
sys.exit() #console exit

def showScore(choice=1): sFont = pygame.font.SysFont('monaco', 24) Ssurf = sFont.render('Score : {0}'.format(score) , True, black) Srect = Ssurf.get_rect() if choice == 1: Srect.midtop = (80, 10) else: Srect.midtop = (360, 120) playSurface.blit(Ssurf,Srect)

Main Logic of the game

while True: for event in pygame.event.get(): if event.type == pygame.QUIT: pygame.quit() sys.exit() elif event.type == pygame.KEYDOWN: if event.key == pygame.K_RIGHT or event.key == ord('d'): changeto = 'RIGHT' if event.key == pygame.K_LEFT or event.key == ord('a'): changeto = 'LEFT' if event.key == pygame.K_UP or event.key == ord('w'): changeto = 'UP' if event.key == pygame.K_DOWN or event.key == ord('s'): changeto = 'DOWN' if event.key == pygame.K_ESCAPE: pygame.event.post(pygame.event.Event(pygame.QUIT))

# validation of direction
if changeto == 'RIGHT' and not direction == 'LEFT':
    direction = 'RIGHT'
if changeto == 'LEFT' and not direction == 'RIGHT':
    direction = 'LEFT'
if changeto == 'UP' and not direction == 'DOWN':
    direction = 'UP'
if changeto == 'DOWN' and not direction == 'UP':
    direction = 'DOWN'

# Update snake position [x,y]
if direction == 'RIGHT':
    snakePos[0] += 10
if direction == 'LEFT':
    snakePos[0] -= 10
if direction == 'UP':
    snakePos[1] -= 10
if direction == 'DOWN':
    snakePos[1] += 10


# Snake body mechanism
snakeBody.insert(0, list(snakePos))
if snakePos[0] == foodPos[0] and snakePos[1] == foodPos[1]:
    score += 1
    foodSpawn = False
else:
    snakeBody.pop()
   
#Food Spawn
if foodSpawn == False:
    foodPos = [random.randrange(1,72)*10,random.randrange(1,46)*10]
foodSpawn = True

#Background
playSurface.fill(white)

#Draw Snake
for pos in snakeBody:
    pygame.draw.rect(playSurface, green, pygame.Rect(pos[0],pos[1],10,10))

pygame.draw.rect(playSurface, brown, pygame.Rect(foodPos[0],foodPos[1],10,10))

# Bound
if snakePos[0] > 710 or snakePos[0] < 0:
    gameOver()
if snakePos[1] > 450 or snakePos[1] < 0:
    gameOver()
   

for block in snakeBody[1:]:
    if snakePos[0] == block[0] and snakePos[1] == block[1]:
        gameOver()


showScore()
pygame.display.flip()

fpsController.tick(24)