static void Main(string[] args)
{
Terminal.Open();
Terminal.Set(string.Format("window.title='{0}'", "SharpSnake"));
Terminal.Refresh();
var consoleScreen = new ConsoleScreen(36, 28);
var context = new StateContext(consoleScreen, new Settings());
var stateStack = new StateStack(context);
stateStack.RegisterState <MenuState>(StateId.Menu);
stateStack.RegisterState <OptionsState>(StateId.Options);
stateStack.RegisterState <PlayState>(StateId.Play);
stateStack.RegisterState <GameOverState>(StateId.GameOver);
stateStack.RegisterState <PauseState>(StateId.Pause);
// Initial state
stateStack.PushState(StateId.Menu);
while (!stateStack.Empty)
{
stateStack.HandleInput();
stateStack.Update();
consoleScreen.Clear();
stateStack.Draw();
consoleScreen.Display();
System.Threading.Thread.Sleep(16);
}
Terminal.Close();
}
/// <summary>
/// Adds the states stored in the <see cref="_transitions" /> cache.
/// </summary>
private void AddStates()
{
if (_transitions.Count == 0)
{
throw new InvalidOperationException("Deadlock detected.");
}
var transitionCount = 0;
_stateStack.PushFrame();
for (var i = 0; i < _transitions.Count; ++i)
{
var transition = _transitions[i];
if (!transition->IsValid)
{
continue;
}
// Store the state if it hasn't been discovered before
int index;
if (_states.AddState(transition->TargetState, out index))
{
Interlocked.Increment(ref _context._stateCount);
_stateStack.PushState(index);
}
// Check if the invariant is violated; if so, generate a counter example and abort
if (!transition->Formulas[0])
{
_context._loadBalancer.Terminate();
CreateCounterExample(endsWithException: false);
return;
}
++transitionCount;
}
Interlocked.Add(ref _context._transitionCount, transitionCount);
Interlocked.Add(ref _context._computedTransitionCount, _transitions.ComputedTransitionCount);
}