snake.py

'''
snake game script in python 
this game runs in terminal only!

made by sam nikzad 
tutorial link : https://avasam.ir/post/381/create-snake-game-with-python

'''

import curses
from random import randint
from time import strftime 

# setup windows 
curses.initscr()
win = curses.newwin(20,60,0,0)
win.keypad(1)
curses.noecho()
curses.curs_set(0)
win.border(0)
win.nodelay(1)

# snake food 
snake = [(9,10),(9,9),(9,8)]
food = (10,20)

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

# game logic 
ESC = 27 
key = curses.KEY_RIGHT

while key != ESC:
    win.addstr(0,10,' score is :'+str(score)+' ')
    win.timeout(150 - (len(snake)//5+len(snake)//10)%120)
    win.addstr(0,25,' speed = '+str(150 - (len(snake)//5+len(snake)//10)%120)+' ')

    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_DOWN,curses.KEY_UP,ESC]:
        key = prev_key

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

    if y == 0 : break
    if y == 19 : break
    if x == 0 : break
    if x == 59 : break
    if snake[0]  in snake[1:]:break

    if snake[0] == food:
        score += 1 
        food = ()
        while food == ():
            food = (randint(1,17),randint(1,57))
            if food in snake : food = ()
            win.addch(food[0],food[1],'*')
    else:
        last = snake.pop()
        win.addch(last[0],last[1],' ')
    
    win.addch(snake[0][0],snake[0][1],'#')

curses.endwin()
print(f'final score : {score}')