}
}
class SecondState implements State
{
public function execute(Troll $troll)
{
if ($troll->isSecondState()) {
$troll->second();
}
}
}
class ThirdState implements State
{
public function execute(Troll $troll)
{
if ($troll->isThirdState()) {
$troll->third();
}
}
}
$uid = 10001;
$troll = new Troll($uid);
$firstState = new FirstState();
$troll->changeState($firstState);
$troll->Update();
$secondState = new SecondState();
$troll->changeState($secondState);
$troll->Update();
$thirdState = new ThirdState();
$troll->changeState($thirdState);
$troll->Update();
