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PySnake.py
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PySnake.py
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import random
import curses
from curses import textpad
# initialising the screen
s = curses.initscr()
curses.curs_set(0)
# height and the width of screen
sh,sw=s.getmaxyx()
# opening new window
w = curses.newwin(sh,sw,0,0)
w.keypad(1)
w.timeout(100)
# initial positions of the snake(left center)
snk_x = sw/4
snk_y = sh/2
# snake body head and two lefts
snake = [[snk_y, snk_x],[snk_y,snk_x-1],[snk_y, snk_x-2]]
# initial position of food(center of screen)
food = [sh/2, sw/2]
# add food to the screen , ACS_P1 -> our food is Pi symbol
w.addch(food[0], food[1], curses.ACS_PI)
# the snake moves initially right and the next direction is specified by key
key = curses.KEY_RIGHT
while True:
next_key=w.getch()
key = key if next_key == -1 else next_key
# check if the person has lost the game four corners or eating itself
if snake[0][0] in [0,sh] or snake[0][1] in [0,sw] or snake[0] in snake[1:]:
curses.endwin()
quit()
new_head = [snake[0][0], snake[0][1]]
# direct the snake as per input arrow keys
if key == curses.KEY_DOWN:
new_head[0] +=1
if key == curses.KEY_UP:
new_head[0] -= 1
if key == curses.KEY_LEFT:
new_head[0] -=1
if key == curses.KEY_RIGHT:
new_head[0] +=1
snake.insert(0, new_head)
# random positioning the food
if snake[0] == food:
food = None
while food is None:
nf = [
random.randint(1, sh-1),
random.randint(1, sw-1)
]
food = nf if nf not in snake else None
w.addch(food[0], food[1], curses.ACS_PI)
else:
tail = snake.pop()
w.addch(tail[0],tail[1],' ')
w.addch(food[0], food[1], curses.ACS_PI)