public void PerformTransition(ZombieTransition trans)
{
// Check for None Transition before changing the current state
if (trans == ZombieTransition.None)
{
Debug.LogError("ZombieFSM Error: None Transition is not allowed for a real transition");
return;
}
// Check if the currentState has the transition passed as argument
ZombieFSMStateID id = currentState.GetOutputState(trans);
if (id == ZombieFSMStateID.None)
{
Debug.LogError("ZombieFSM Error: State " + currentStateID.ToString() + " doesn't have a target state for transition " + trans.ToString());
return;
}
// Update the currentState and currentStateID
currentStateID = id;
foreach (ZombieFSMState state in states)
{
if (state.ID == currentStateID)
{
// Do the post processing of the state before setting the new one
currentState = state;
// Reset the state to its desirec condition before it can reason or act
break;
}
}
}
public void AddState(ZombieFSMState state)
{
// Check for Null Reference before Adding
if (state == null)
{
Debug.LogError("ZombieFSM Error: Null reference is not allowed");
}
// First State inserted also the initial state, the state the machine is in when the simulation begins
if (states.Count == 0)
{
states.Add(state);
currentState = state;
currentStateID = state.ID;
return;
}
// Add the state to the List if it is not inside it
foreach (ZombieFSMState s in states)
{
if (s.ID == state.ID)
{
Debug.LogError("ZombieFSM Error: Impossible to add state " + state.ID.ToString() + " because state has already been added");
return;
}
}
states.Add(state);
}
public void DeleteState(ZombieFSMStateID id)
{
// Check for None State before deleting
if (id == ZombieFSMStateID.None)
{
Debug.LogError("ZombieFSM Error: None is not allowed for a real state");
return;
}
// Search the list and delete the state if it's inside it
foreach (ZombieFSMState state in states)
{
if (state.ID == id)
{
states.Remove(state);
return;
}
}
Debug.LogError("ZombieFSM Error: Impossible to delete state " + id.ToString() + ". It was not on the list of states");
}
// protected float curRotSpeed;
// protected float curSpeed;
// protected Vector3 desPos;
public void AddTransition(ZombieTransition trans, ZombieFSMStateID id)
{
// Check if anyone of the args is invalid
if (trans == ZombieTransition.None)
{
Debug.LogError("ZombieFSMState Error: None is not allowed for a real Transition");
return;
}
if (id == ZombieFSMStateID.None)
{
Debug.LogError("ZombieFSMState Error: None is not allowed for a real ID");
return;
}
// Since this is a Deterministic FSM, check fi the current transition was already inside the map
if (map.ContainsKey(trans))
{
Debug.LogError("ZombieFSMState Error: State " + stateID.ToString() + "already has transition" + trans.ToString() + " Impossible to assign to another state");
return;
}
map.Add(trans, id);
}
