مثلا زر W وزر A هذاالكود الخاص بي: def keyPressed():     qw()     qe()           def qw():         global player_1_y     old_y_player_1 = player_1_y     if keyboard.keyCode == UP:         player_1_y = player_1_y - 50     if keyboard.keyCode == DOWN:         player_1_y = player_1_y + 50     if player_1_y < 0 or player_1_y + 50 > height:         player_1_y = old_y_player_1     def qe():     global player_2_y     old_y_player_2 = player_2_y     if keyboard.keyCode == LEFT: