{
return $this->currentState;
}
public function powerUp()
{
$this->currentState->powerUp();
}
public function powerDown()
{
$this->currentState->powerDown();
}
public function turnIntoVehicle()
{
$this->currentState->turnIntoVehicle();
}
public function turnIntoRobot()
{
$this->currentState->turnIntoRobot();
}
}
$robot = new Robot();
echo "\n";
$robot->powerUp();
echo "\n";
$robot->turnIntoRobot();
echo "\n";
$robot->turnIntoRobot();
/* This one will just give me a message */
echo "\n";
$robot->turnIntoVehicle();
echo "\n";
