/// <summary>
/// Adds a transition, stateID pair to the transition map. Every transition called
/// in the states Reason method should have a corresponding state id in the map.
/// </summary>
public void AddTransition(GlobalStateData.FSMTransistion transition, GlobalStateData.FSMStateID id)
{
// Ensure valid transition.
if (transition == GlobalStateData.FSMTransistion.None || id == GlobalStateData.FSMStateID.None)
{
Debug.LogWarning(SCRIPT_NAME + " : Null transition not allowed");
return;
}
// Ensure transition not already present in map.
if (map.ContainsKey(transition))
{
Debug.LogWarning(SCRIPT_NAME + ": transition is already inside the map | " + transition);
return;
}
map.Add(transition, id);
}
/// <summary>
/// Deletes a transition, stateID pair from the transition map.
/// </summary>
public void DeleteTransition(GlobalStateData.FSMTransistion transition)
{
// Ensures valid transition.
if (transition == GlobalStateData.FSMTransistion.None)
{
Debug.LogError(SCRIPT_NAME + ": None transition is not allowed");
return;
}
// Ensure map contains transition before attempting delete.
if (map.ContainsKey(transition))
{
map.Remove(transition);
return;
}
Debug.LogError(SCRIPT_NAME + ": transition passed was not on this State´s List | " + transition);
}
/// <summary>
/// This method returns the state that would be transitioned into based on the FSMTransition.
/// </summary>
public GlobalStateData.FSMStateID GetOutputState(GlobalStateData.FSMTransistion transition)
{
// Ensures valid transition.
if (transition == GlobalStateData.FSMTransistion.None)
{
Debug.LogError(SCRIPT_NAME + ": None transition is not allowed");
return(GlobalStateData.FSMStateID.None);
}
// Ensure map contains transition before returning new state.
if (map.ContainsKey(transition))
{
return(map[transition]);
}
Debug.LogError(SCRIPT_NAME + ": transition passed to the State was not on the list | " + transition);
// Transition not in map.
return(GlobalStateData.FSMStateID.None);
}
public void PerformTransition(GlobalStateData.FSMTransistion trans)
{
// Check for NullTransition before changing the current state
if (trans == GlobalStateData.FSMTransistion.None)
{
Debug.LogError(SCRIPT_NAME + ": Null transition is not allowed");
return;
}
// Check if the currentState has the transition passed as argument
GlobalStateData.FSMStateID id = currentState.GetOutputState(trans);
if (id == GlobalStateData.FSMStateID.None)
{
Debug.LogError(SCRIPT_NAME + ": Current State does not have a target state for this transition");
return;
}
// Update the currentStateID and currentState
//currentStateID = id;
foreach (FSMState state in fsmStates)
{
if (state.ID == id)
{
// Store previous state and call exit method.
previousState = currentState;
previousState.Exit();
// Update current state and call enter method.
currentState = state;
currentState.Enter();
break;
}
}
}
/// <summary>
/// This performs a transistion from one state to another and is invoked in an individual states Reason method.
/// </summary>
public void SetTransistion(GlobalStateData.FSMTransistion tran)
{
stateMachine.PerformTransition(tran);
}
