snakegame2.py

# 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")