# SNAKES GAME

# Use ARROW KEYS to play, SPACE BAR for pausing/resuming and Esc Key for exiting

import curses

from curses import KEY_RIGHT, KEY_LEFT, KEY_UP, KEY_DOWN

from random import randint

curses.initscr()

win = curses.newwin(20, 60, 0, 0)

win.keypad(1)

curses.noecho()

curses.curs_set(0)

win.border(0)

win.nodelay(1)

key = KEY_RIGHT # Initializing values

score = 0

snake = [[4,10], [4,9], [4,8]] # Initial snake co-ordinates

food = [10,20] # First food co-ordinates

win.addch(food[0], food[1], '*') # Prints the food

while key != 27: # While Esc key is not pressed

win.border(0)

win.addstr(0, 2, 'Score : ' + str(score) + ' ') # Printing 'Score' and

win.addstr(0, 27, ' SNAKE ') # 'SNAKE' strings

win.timeout(150 - (len(snake)/5 + len(snake)/10)%120) # Increases the speed of Snake as its length increases

prevKey = key # Previous key pressed

event = win.getch()

key = key if event == -1 else event

if key == ord(' '): # If SPACE BAR is pressed, wait for another

key = -1 # one (Pause/Resume)

while key != ord(' '):

key = win.getch()

key = prevKey

continue

if key not in [KEY_LEFT, KEY_RIGHT, KEY_UP, KEY_DOWN, 27]: # If an invalid key is pressed

key = prevKey

# Calculates the new coordinates of the head of the snake. NOTE: len(snake) increases.

# This is taken care of later at [1].

snake.insert(0, [snake[0][0] + (key == KEY_DOWN and 1) + (key == KEY_UP and -1), snake[0][1] + (key == KEY_LEFT and -1) + (key == KEY_RIGHT and 1)])

# If snake crosses the boundaries, make it enter from the other side

if snake[0][0] == 0: snake[0][0] = 18

if snake[0][1] == 0: snake[0][1] = 58

if snake[0][0] == 19: snake[0][0] = 1

if snake[0][1] == 59: snake[0][1] = 1

# Exit if snake crosses the boundaries (Uncomment to enable)

#if snake[0][0] == 0 or snake[0][0] == 19 or snake[0][1] == 0 or snake[0][1] == 59: break

# If snake runs over itself

if snake[0] in snake[1:]: break

if snake[0] == food: # When snake eats the food

food = []

score += 1

while food == []:

food = [randint(1, 18), randint(1, 58)] # Calculating next food's coordinates

if food in snake: food = []

win.addch(food[0], food[1], '*')

else:

last = snake.pop() # [1] If it does not eat the food, length decreases

win.addch(last[0], last[1], ' ')

win.addch(snake[0][0], snake[0][1], '#')

curses.endwin()

print("\nScore - " + str(score))

print("http://bitemelater.in\n")