/// <summary>
/// Called when an avatar completes a station, this will remove that station's states
/// </summary>
public void RemoveStation(ModelStation station)
{
if (station is HoldingStation)
{
// Holding stations don't need to be removed
return;
}
WalkToStationState thisStationWalkState = mWalkToStationStates[station];
mAtStationStates.Remove(station);
mWalkToStationStates.Remove(station);
foreach (WalkToStationState walkState in mWalkToStationStates.Values)
{
walkState.RemoveTransition(thisStationWalkState);
}
mWalkToCenterState.RemoveTransition(thisStationWalkState);
mWalkToEndGoalState.RemoveTransition(thisStationWalkState);
}
/// <summary>
/// Constructs a FashionModelStateMachine for the given model. Model must have needs before creating the state machine (so that the proper states for each station can be created)
/// </summary>
public FashionModelStateMachine(FashionModel model, FashionLevel level)
{
if (model == null)
{
throw new ArgumentNullException("model");
}
mModel = model;
mInactiveState = new ModelInactiveState(model);
mWalkToEndGoalState = new WalkToEndGoal(model, level);
mInactiveState.AddTransition(mWalkToEndGoalState);
mWalkToEndGoalState.AddTransition(mInactiveState);
mWalkToCenterState = new WalkToCenterState(model, level);
mWalkToCenterState.AddTransition(mInactiveState);
List <ModelStation> possibleStations = new List <ModelStation>(model.RequiredStations);
foreach (HoldingStation station in level.HoldingStations)
{
possibleStations.Add(station);
}
foreach (ModelStation station in possibleStations)
{
WalkToStationState walkToStation = new WalkToStationState(model, station, level);
AtStationState atStation = new AtStationState(model, station);
atStation.AddTransition(mWalkToCenterState);
atStation.AddTransition(mInactiveState);
// All the WalkToStation states can enter the corresponding AtStation state
walkToStation.AddTransition(atStation);
walkToStation.AddTransition(mInactiveState);
mAtStationStates.Add(station, atStation);
// If the model doesn't need to stay at this station, it could go back to walk to center
walkToStation.AddTransition(mWalkToCenterState);
mWalkToEndGoalState.AddTransition(walkToStation);
// An avatar walking to center can be redirected to a station
mWalkToCenterState.AddTransition(walkToStation);
mWalkToStationStates.Add(station, walkToStation);
}
// Make it so that avatars can be interrupted from walking to
// one station by sending them to another station they need
foreach (WalkToStationState stateA in mWalkToStationStates.Values)
{
foreach (WalkToStationState stateB in mWalkToStationStates.Values)
{
stateA.AddTransition(stateB);
}
}
mWalkToCenterState.AddTransition(mWalkToEndGoalState);
mModel.Clickable = mInactiveState.Clickable;
this.EnterInitialState(mInactiveState);
}