$shield = false;
$shieldTimer = 0;
$recharge = false;
$rechargeTimer = 0;
while ($boss->isAlive() && $player->isAlive()) {
// hard mode (part 2)
if ($playersTurn) {
$player->decreaseHitpoints(1);
if (!$player->isAlive()) {
continue;
}
}
// tick active effects
if ($poison) {
$poisonTimer--;
$boss->decreaseHitpoints(3);
if ($poisonTimer == 0) {
$poison = false;
}
}
if ($shield) {
$shieldTimer--;
$player->setArmor(7);
if ($shieldTimer == 0) {
$shield = false;
}
}
if ($recharge) {
$rechargeTimer--;
$player->increaseMana(101);
if ($rechargeTimer == 0) {
