}
public function undoButton($input)
{
if (isset($this->commands[$input])) {
$this->commands[$input]->undo();
}
}
public function setCommandForButton($buttonId, $cmd)
{
$this->commands[$buttonId] = $cmd;
}
public function __toString()
{
$str = 'Выберете вариант ниже:' . '<br />';
foreach ($this->commands as $key => $command) {
$str = $str . $key . ' - ' . (string) $command . '<br />';
}
return $str;
}
}
$control = new RemoteControl();
$control->setCommandForButton('1', new LightsCommand(new Light()));
$control->setCommandForButton('2', new TvCommand(new Tv()));
$control->setCommandForButton('3', new MusicCommand(new Misic()));
$control->setCommandForButton('4', new TeapotCommand(new Teapot()));
echo (string) $control;
echo '<br />';
echo '<br />';
$control->pushButton('4');
echo '<br />';
$control->undoButton('4');