gistfile1.txt

import pygame
import sys
import time
import random

error = pygame.init()
if error[1] > 0:
    print error
    sys.exit(-1)

width = 720
height = 460

screen = pygame.display.set_mode((width, height))
pygame.display.set_caption('Snake')

dot_color = pygame.Color(255, 0, 0)
background_color = pygame.Color(0, 255, 255)

clock = pygame.time.Clock()

x = 0
y = 0

dx = 0
dy = 0

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:
                dx = 10
                dy = 0
            if event.key == pygame.K_LEFT:
                dx = -10
                dy = 0
            if event.key == pygame.K_UP:
                dy = -10
                dx = 0
            if event.key == pygame.K_DOWN:
                dy = 10
                dx = 0
            if event.key == pygame.K_ESCAPE:
                pygame.event.post(pygame.event.Event(pygame.QUIT))

    x = (x + dx + width) % width
    y = (y + dy + height) % height
    screen.fill(background_color)
    pygame.draw.rect(screen, dot_color, pygame.Rect(x, y, 10, 10))

    pygame.display.flip()
    clock.tick(10)