Hello Rogue World

hello_rogue.py

import curses

def main(w):
    curses.use_default_colors()
    window_height, window_width = w.getmaxyx()
    player_y = window_height / 2
    player_x = window_width / 2
    def redraw_player():
        w.delch()
        w.move(player_y, player_x)
        w.addch('@')
        w.move(player_y, player_x)
    redraw_player()

    while True:
        c = w.getch()
        if c == ord('h'):
            player_x = max(0, player_x - 1)
        elif c == ord('j'):
            # avoid lower right corner
            player_y = min(window_height - 2, player_y + 1)
        elif c == ord('k'):
            player_y = max(0, player_y - 1)
        elif c == ord('l'):
            player_x = min(window_width - 1, player_x + 1)
        redraw_player()

curses.wrapper(main)