Snake Game unfinished

import random

snake_dir = ">"

apple_x = 14
apple_y = 7
points = 0

board = list(".........................................................................................................................@@>.........*.........................................................................................................................")

for j in range(15):
    for i in range(17):
        print(board[j * 17 + i], end=' ')
    print("")

while True:
    while True:
        player = input("Type W/A/S/D to move: ")
        if (player.lower() == "w" and snake_dir != "v") or (player.lower() == "a" and snake_dir != ">") or (player.lower() == "s" and snake_dir != "^") or (player.lower() == "d" and snake_dir != "<"):
            break

    if player.lower() == "w":
        pass
        #update snake x and snake y
    if player.lower() == "a":
        pass
        #update snake x and snake y
    if player.lower() == "s":
        pass
        #update snake x and snake y
    if player.lower() == "d":
        pass
        #update snake_x and snake_y

    #print board