private FSMState(FSMachine machine, TransitionalTarget state, FSMState parent)
{
this.machine = machine ?? throw new ArgumentNullException(nameof(machine));
this.state = state ?? throw new ArgumentNullException(nameof(state));
activeStates = new LinkedList <FSMState>();
name = this.state.Name;
if (parent != null)
{
if (state.Name == null)
{
throw new FSMException(Resource1.FSM_StateNameNull);
}
this.parent = parent;
this.context = new FSMContext(parent.context);
execContext = new FSMExecutionContext(machine, state, context);
}
else
{
this.context = new FSMContext(machine.GlobalContext);
execContext = new FSMExecutionContext(machine, state, context);
}
if (state is ParallelState)
{
stateType = StateType.ParallelState;
}
else if (state is TransitionalState)
{
stateType = StateType.TransitionalState;
}
else if (state is EnterableState)
{
stateType = StateType.EnterableState;
}
else
{
stateType = StateType.TransitionalTarget;
}
if (state.Parameters != null)
{
state.Parameters.Where((p) =>
{
if (p.DefaultValueExpr != null)
{
context.AddParameter(p.Type, p.Name, () => execContext.EvalExpression(p.DefaultValueExpr));
}
else
{
context.AddParameter(p.Type, p.Name, p.DefaultValue);
}
return(false);
}).ToArray();
}
var ts = state as TransitionalState;
if (ts != null)
{
if (parent != null)
{
transitions = ts.Transitions;
}
if (ts.Children.Count > 0)
{
entry = new FSMState(machine, ts.EntryState ?? new EntryState(), this);
exit = AddChild(ts.ExitState ?? new ExitState());
foreach (var child in ts.Children)
{
AddChild(child);
}
if (!string.IsNullOrEmpty(ts.Initial))
{
initial = GetChild(ts.Initial);
}
}
else
{
if (ts.EntryState != null || ts.ExitState != null)
{
entry = new FSMState(machine, ts.EntryState ?? new EntryState(), this);
exit = AddChild(ts.ExitState ?? new ExitState());
}
}
}
else if (state is EntryState)
{
transitions = ((EntryState)state).Transitions;
}
}
internal FSMState(FSMachine machine, TransitionalTarget state)
: this(machine, state, null)
{
}
