#!/bin/python3
from os import get_terminal_size
tx,ty = get_terminal_size().columns ,get_terminal_size().lines

def genfeld():
    return [[' ' for _ in range(tx)] for _ in range(ty)]

def bg_char(feld, char=' '):
    for a in range(len(feld)):
        for b in range(len(feld[0])):
            feld[a][b] = char
    return feld

def strfeld(feld):
    return '\n'.join([''.join(row) for row in feld])

def change_char(feld, character, position):
    feld[position[0]][position[1]] = character

def change_block(feld, block, position):
    position = [position[0]+1,position[1]]
    pposition = position
    for zeichen in block:
        if zeichen == '\n':
            pposition = [pposition[0] + 1, position[1]]
        else:
            pposition = [pposition[0], pposition[1] + 1]
            feld[pposition[0]][pposition[1]] = zeichen
    return feld

def clear():
    print('\033c', end='')

def draw_border(feld, border_char='+'):
    for i in range(len(feld)):
        feld[i][0] = feld[i][-1] = border_char
    for j in range(len(feld[0])):
        feld[0][j] = feld[-1][j] = border_char
    global tx,ty
    tx -= 2;ty -= 2
    return feld

#def move_cursor(x, y):
#    print(f'\033[{y};{x}H', end='')

def viereck(feld, start_pos, width, height, fill_char='#'):
    for i in range(height):
        for j in range(width):
            feld[start_pos[0] + i][start_pos[1] + j] = fill_char
    return feld