public SM(Character a_controller, State sInitialState)
{
controller = a_controller;
//uses this function to initalise the first state rather than assigning it
//so the state machine is passed to the state itself
ChangeState(sInitialState);
}
public void ChangeState(State sNewState)
{
if (currentState != null) {
previousState = currentState;
currentState.ExitState ();
}
currentState = sNewState;
currentState.EnterState(this);
}
