private static void BuildStateTwo(DemoModel model, MachineEditor <DemoState> builder)
{
var two = builder.EditState(DemoState.Two);
// Transition from TWO to FOUR
var twoToFour = two.TransitionTo(DemoState.Four)
.TriggerWithCollection(model.Observables, 5)
.TriggerWithEvent <DemoModel, DemoEventArgs>(model, nameof(model.TriggerEvent));
}
private static void BuildStateThree(DemoModel model, MachineEditor <DemoState> builder)
{
var three = builder.EditState(DemoState.Three);
// Transition from THREE to ONE
var threeToOne = three.TransitionTo(DemoState.One)
.GuardWith(() => model.Children.All(c => c.StateMachine.CurrentState == ChildState.Ready), "All Children Ready")
.TriggerWithStateChange(model.Children.Select(c => c.StateMachine).ToList(), builder.Machine, ChildState.Ready)
.TriggerWithEvent <DemoModel, DemoEventArgs>(model, nameof(model.TriggerEvent));
}
public DemoViewModel()
{
_model = new DemoModel(_logger);
ControlPanelVM = new ControlPanelViewModel(_model);
StateMachineVM = new StateMachineViewModel(_model, _logger);
_model.StateMachine.StateChanged += HandleStateChanged;
_model.ResetOccurred += HandleModelReset;
}
public ControlPanelViewModel(DemoModel demoModel)
{
Model = demoModel;
TriggerAllCommand = new DelegateCommand(Model.TriggerAll);
// Compile a dummy expression in order to front load all the roslyn dependencies.
_expression = "false";
CompileExpression();
_expression = string.Empty;
Model.PropertyChanged += HandleModelPropertyChanged;
}
public static MachineEditor <DemoState> BuildStateMachine(this DemoModel model, StateMachine <DemoState> machine)
{
var builder = MachineEditor <DemoState> .Edit(machine);
machine.SetInitialState(DemoState.One);
BuildStateOne(model, builder);
BuildStateTwo(model, builder);
BuildStateThree(model, builder);
BuildStateFour(model, builder);
return(builder);
}
private static void BuildStateFour(DemoModel model, MachineEditor <DemoState> builder)
{
var four = builder.EditState(DemoState.Four);
// Transition from FOUR to FOUR
var fourToFour = four.TransitionTo(DemoState.Four)
.GuardWith(() => model.LoopCount > 0, "Loop Count>0")
.TriggerWithProperty(model, nameof(model.LoopCount))
.TriggerWithEvent <DemoModel, DemoEventArgs>(model, nameof(model.TriggerEvent));
// Transition from FOUR to THREE
var fourToThree = four.TransitionTo(DemoState.Three)
.GuardWith(() => model.BoolFunc.Invoke() && model.LoopCount == 0, "Expression Is True")
.TriggerWithProperty(model, nameof(model.BoolFunc))
.TriggerWithEvent <DemoModel, DemoEventArgs>(model, nameof(model.TriggerEvent));
}
private static void BuildStateOne(DemoModel model, MachineEditor <DemoState> builder)
{
var one = builder.EditState(DemoState.One);
// Transition from ONE to TWO
one.TransitionTo(DemoState.Two)
.GuardWith(() => model.OnOff, "On")
.TriggerWithProperty(model, nameof(model.OnOff))
.TriggerWithEvent <DemoModel, DemoEventArgs>(model, nameof(model.TriggerEvent));
// Transition from ONE to THREE
one.TransitionTo(DemoState.Three)
.GuardWith(() => model.Number == 1 && !model.OnOff, "Number==1 && Off")
.TriggerWithProperty(model, nameof(model.OnOff))
.TriggerWithProperty(model, nameof(model.Number))
.TriggerWithEvent <DemoModel, DemoEventArgs>(model, nameof(model.TriggerEvent));
}
public StateMachineViewModel(DemoModel demoModel, ILog logger)
{
_logger = logger;
Model = demoModel;
}