/// <summary>
/// Add a new transition from 1 state to another
/// </summary>
/// <returns>
public ITransitionCommand AddTransition(FiniteState fromState, ITransitionCommand component, FiniteState toState)
{
component.enabled = false;
component.FSM = this;
StateTransition st = new StateTransition(fromState,component);
//Debug.Log("Adding new transition type " + component.GetType() + " from state " + fromState.StateName + " to state " + toState.StateName);
if(!MapTransition(fromState,component,toState)){
Destroy(component); //always delete duplicate transition components
//Debug.Log("fromState " + fromState.StateName + " already contains a transition type " + component.GetType().ToString());
return null;
}
return component;
}
/// <summary>
/// Map the transitiom from 'fromState' to 'toState'.
/// </summary>
/// <returns>
/// false if there is a transition from 'fromState' matching 'transition', else true;
/// </returns>
bool MapTransition(FiniteState fromState, ITransitionCommand transition,FiniteState toState)
{
return MapTransition(fromState,transition,toState,true);
}
/// <summary>
/// Called by ITransitionCommand's when the transitional condition is met, triggers state change
/// </summary>
public void OnTransition(ITransitionCommand transition)
{
StateTransition st = new StateTransition(CurrentState,transition);
ChangeState(StateTransitions[st]);
}
/// <summary>
/// Map the transitiom from 'fromState' to 'toState'.
/// </summary>
/// <returns>
/// false if there is a transition from 'fromState' matching 'transition', else true;
/// </returns>
bool MapTransition(FiniteState fromState, ITransitionCommand transition,FiniteState toState,bool cache)
{
StateTransition st = new StateTransition(fromState,transition);
if(StateTransitions.ContainsKey(st)){
return false;
}
AddState(fromState,cache);
AddState(toState,cache);
StateTransitions.Add(st,toState);
TransitionMap[fromState].Add(transition);
if(cache){
StateTransitionState sts = new StateTransitionState();//ScriptableObject.CreateInstance<StateTransitionState>() as StateTransitionState;
sts.StartState = fromState;
sts.EndState = toState;
sts.Transition = transition;
StateCache.Add(sts);
}
return true;
}
public StateTransition(FiniteState currentState, ITransitionCommand component)
{
CurrentState = currentState;
TransitionComponent = component;
}