from os import get_terminal_size

tx = get_terminal_size().columns
ty = get_terminal_size().lines
def genfeld():
    feld = [[' ' for _ in range(tx)] for _ in range(ty)]
    return feld
def bg_char(feld,char=str):
    test = 0
    for a in range(len(feld)):
        for b in range(len(feld[0])):
            feld[a][b] = test
            test = char
    return feld

def strfeld(feld):
    back = ""
    for a in feld:
        for b in a:
            back += str(b)
        back += "\n"
    return back

def change_char(feld,character=str,position=list):
    feld[position[0]][position[1]] = character
def change_block(feld,string=str,position=list):
    a = ""
    block_len = 0
    for a in string:
        if a == "\n":
            break
        else:
            block_len += 1
    print(block_len)
    for zeichen in string:
        position[0] += 1
        if position[0]== block_len-1:
            position[0] = 0
        feld[position[0]][position[1]] = zeichen
    return feld