/// <summary>
/// This method tries to change the state the FSM is in based on
/// the current state and the transition passed. If current state
/// doesn't have a target state for the transition passed,
/// an ERROR message is printed.
/// </summary>
public void PerformTransition(FsmTransitionId trans)
{
// Check for NullTransition before changing the current state
if (trans == FsmTransitionId.NullTransition)
{
throw new Exception("FSM ERROR: NullTransition is not allowed for a real transition");
}
// Check if the currentState has the transition passed as argument
FsmStateId id = currentState.GetOutputState(trans);
if (id == FsmStateId.NullStateID)
{
throw new Exception("FSM ERROR: State " + currentStateID.ToString() + " does not have a target state " +
" for transition " + trans.ToString());
}
// Update the currentStateID and currentState
currentStateID = id;
foreach (FsmState state in states)
{
if (state.ID == currentStateID)
{
// Do the post processing of the state before setting the new one
currentState.DoBeforeLeaving();
currentState = state;
// Reset the state to its desired condition before it can reason or act
currentState.DoBeforeEntering();
break;
}
}
} // PerformTransition()
/// <summary>
/// This method places new states inside the FSM,
/// or prints an ERROR message if the state was already inside the List.
/// First state added is also the initial state.
/// </summary>
public void AddState(FsmState s)
{
// Check for Null reference before deleting
if (s == null)
{
throw new Exception("FSM ERROR: Null reference is not allowed");
}
s.SetOwner(this);
// First State inserted is also the Initial state,
// the state the machine is in when the simulation begins
if (states.Count == 0)
{
states.Add(s);
currentState = s;
currentStateID = s.ID;
return;
}
// Add the state to the List if it's not inside it
foreach (FsmState state in states)
{
if (state.ID == s.ID)
{
throw new Exception("FSM ERROR: Impossible to add state " + s.ID.ToString() +
" because state has already been added");
}
}
states.Add(s);
}
public void PerformTransition(Transition t)
{
FsmStateId outputState = CurrentState.GetOutPutState(t);
if (outputState != FsmStateId.None)
{
AIState result = fsmstates.Find(alist =>
{
if (alist.OwnFsmStateID == outputState)
{
return(true);
}
else
{
return(false);
}
});
if (result == null)
{
return;
}
_CurrentState = result;
_CurrentStateID = result.OwnFsmStateID;
}
}
public void StartAI()
{
_CurrentState = fsmstates.Find(alist =>
{
return(alist.IsInitState);
});
_CurrentStateID = _CurrentState.OwnFsmStateID;
OnInit();
StartCoroutine(OtherUpdate());
}
/// <summary>
/// This method delete a state from the FSM List if it exists,
/// or prints an ERROR message if the state was not on the List.
/// </summary>
public void DeleteState(FsmStateId id)
{
// Check for NullState before deleting
if (id == FsmStateId.NullStateID)
{
throw new Exception("FSM ERROR: NullStateID is not allowed for a real state");
}
// Search the List and delete the state if it's inside it
foreach (FsmState state in states)
{
if (state.ID == id)
{
states.Remove(state);
return;
}
}
throw new Exception("FSM ERROR: Impossible to delete state " + id.ToString() +
". It was not on the list of states");
}
// regular add method
public void AddTransition(FsmTransitionId trans, FsmStateId id)
{
// Check if anyone of the args is invalid
if (trans == FsmTransitionId.NullTransition)
{
throw new Exception("FSMState ERROR: NullTransition is not allowed for a real transition");
}
if (id == FsmStateId.NullStateID)
{
throw new Exception("FSMState ERROR: NullStateID is not allowed for a real ID");
}
// Since this is a Deterministic FSM,
// check if the current transition was already inside the map
if (transitionMap.ContainsKey(trans))
{
throw new Exception("FSMState ERROR: State " + stateID.ToString() + " already has transition " + trans.ToString() +
"Impossible to assign to another state");
}
transitionMap.Add(trans, id);
}
// fluid interface
public FsmState WithTransition(FsmTransitionId trans, FsmStateId id)
{
AddTransition(trans, id);
return(this);
}
public FsmState(FsmStateId _stateId)
{
stateID = _stateId;
}
/// <summary>
/// This method tries to change the state the FSM is in based on
/// the current state and the transition passed. If current state
/// doesn't have a target state for the transition passed,
/// an ERROR message is printed.
/// </summary>
public void PerformTransition(FsmTransitionId trans)
{
// Check for NullTransition before changing the current state
if (trans == FsmTransitionId.NullTransition)
{
throw new Exception("FSM ERROR: NullTransition is not allowed for a real transition");
}
// Check if the currentState has the transition passed as argument
FsmStateId id = currentState.GetOutputState(trans);
if (id == FsmStateId.NullStateID)
{
throw new Exception("FSM ERROR: State " + currentStateID.ToString() + " does not have a target state " +
" for transition " + trans.ToString());
}
// Update the currentStateID and currentState
currentStateID = id;
foreach (FsmState state in states)
{
if (state.ID == currentStateID)
{
// Do the post processing of the state before setting the new one
currentState.DoBeforeLeaving();
currentState = state;
// Reset the state to its desired condition before it can reason or act
currentState.DoBeforeEntering();
break;
}
}
}
/// <summary>
/// This method delete a state from the FSM List if it exists,
/// or prints an ERROR message if the state was not on the List.
/// </summary>
public void DeleteState(FsmStateId id)
{
// Check for NullState before deleting
if (id == FsmStateId.NullStateID)
{
throw new Exception("FSM ERROR: NullStateID is not allowed for a real state");
}
// Search the List and delete the state if it's inside it
foreach (FsmState state in states)
{
if (state.ID == id)
{
states.Remove(state);
return;
}
}
throw new Exception("FSM ERROR: Impossible to delete state " + id.ToString() +
". It was not on the list of states");
}
/// <summary>
/// This method places new states inside the FSM,
/// or prints an ERROR message if the state was already inside the List.
/// First state added is also the initial state.
/// </summary>
public void AddState(FsmState s)
{
// Check for Null reference before deleting
if (s == null)
{
throw new Exception("FSM ERROR: Null reference is not allowed");
}
s.SetOwner(this);
// First State inserted is also the Initial state,
// the state the machine is in when the simulation begins
if (states.Count == 0)
{
states.Add(s);
currentState = s;
currentStateID = s.ID;
return;
}
// Add the state to the List if it's not inside it
foreach (FsmState state in states)
{
if (state.ID == s.ID)
{
throw new Exception("FSM ERROR: Impossible to add state " + s.ID.ToString() +
" because state has already been added");
}
}
states.Add(s);
}
// fluid interface
public FsmState WithTransition(FsmTransitionId trans, FsmStateId id)
{
AddTransition(trans, id);
return this;
}
// regular add method
public void AddTransition(FsmTransitionId trans, FsmStateId id)
{
// Check if anyone of the args is invalid
if (trans == FsmTransitionId.NullTransition)
{
throw new Exception("FSMState ERROR: NullTransition is not allowed for a real transition");
}
if (id == FsmStateId.NullStateID)
{
throw new Exception("FSMState ERROR: NullStateID is not allowed for a real ID");
}
// Since this is a Deterministic FSM,
// check if the current transition was already inside the map
if (transitionMap.ContainsKey(trans))
{
throw new Exception("FSMState ERROR: State " + stateID.ToString() + " already has transition " + trans.ToString() +
"Impossible to assign to another state");
}
transitionMap.Add(trans, id);
}
public FsmState(FsmStateId _stateId)
{
stateID = _stateId;
}
