snake.py

import curses
from random import randint

curses.initscr()
curses.noecho()
curses.curs_set(0)
win = curses.newwin(20,60)
win.keypad(1)
win.border(0)
win.nodelay(1)
snake = [(4,10),(4,9),(4,8)]
food = (10,20)
ESC = 27
key = curses.KEY_RIGHT
score = 0
win.addch(food[0],food[1],"0")
while key!=ESC:
    win.addstr(0,2,"Score = "+ str(score)+ " ")
    win.timeout(100)
    prev_key = key
    event = win.getch()
    key = event if event != 1 else prev_key
    if key not in [curses.KEY_LEFT,curses.KEY_RIGHT,curses.KEY_UP,curses.KEY_DOWN,ESC]:
        key=prev_key 

    # calculate next coordinates
    y= snake[0][0]
    x= snake[0][1]

    if key == curses.KEY_DOWN:
        y+=1
    if key == curses.KEY_UP:
        y-=1
    if key == curses.KEY_LEFT:
        x=-1
    if key == curses.KEY_RIGHT:
        x +=1
    snake.insert(0,(y,x))

    #Check border
    if y==0: break
    if x==0: break
    if x==59: break
    if y==19: break 

    #if snake runs over itself
    if snake[0] in snake[1:] : break

    #check if snake has eaten food
    if snake[0] == food:
        score +=1
        food = ()
        while food == ():
            food=(randint(1,18),randint(1,58))
            if food in snake:
                food=()
        win.addch(food[0],food[1],"O")
    else:
        #moving the snake
        last= snake.pop()
        win.addch(last[0],last[1]," ")
    win.addch(snake[0][0],snake[0][1],"*")


    


curses.endwin()
print(f"Score = {score}")