public GameStateMachine(IGameActions game, IGameSettings settings, GameNotifications gameNotifications)
{
InstanceState(x => x.Status);
DuringAny(
When(Tick)
.Then(context => context.Instance.LastTick = context.Data.Now));
Initially(
When(Tick)
.Then(context => context.Instance.LastTick = context.Data.Now)
.Then(context => game.MoveGhostsHome())
.Then(context => game.ShowGhosts(context.Instance))
.Then(context => gameNotifications.Publish(GameNotification.Beginning))
.TransitionTo(Scatter));
WhenEnter(Scatter,
binder => binder
.Then(context => context.Instance.TimeToChangeState = context.Instance.LastTick.AddSeconds(settings.InitialScatterTimeInSeconds))
.Then(context => game.ScatterGhosts()));
During(Scatter,
When(Tick, context => context.Data.Now >= context.Instance.TimeToChangeState)
.TransitionTo(GhostChase));
WhenEnter(GhostChase,
binder => binder
.Then(context => context.Instance.TimeToChangeState = context.Instance.LastTick.AddSeconds(settings.ChaseTimeInSeconds))
.Then(context => game.GhostToChase()));
During(GhostChase,
When(Tick, context => context.Data.Now >= context.Instance.TimeToChangeState)
.TransitionTo(Scatter));
During(Frightened,
When(Tick, context => context.Data.Now >= context.Instance.TimeToChangeState)
.Then(x => game.MakeGhostsNotEdible())
.TransitionTo(Scatter));
During(Scatter, GhostChase, Frightened,
When(Tick)
.ThenAsync(async context => await game.MoveGhosts(context, this))
.Then(context => game.MovePacMan(context, this)),
When(CoinEaten)
.Then(context => context.Instance.Score += 10)
.Then(context => gameNotifications.Publish(GameNotification.EatCoin)),
When(PowerPillEaten)
.Then(context => context.Instance.Score += 50)
.Then(context => gameNotifications.Publish(GameNotification.EatPowerPill))
.Then(context => game.MakeGhostsEdible())
.Then(context => context.Instance.TimeToChangeState = context.Instance.LastTick.AddSeconds(7))
.TransitionTo(Frightened),
When(GhostCollision)
.IfElse(x => x.Data.Ghost.Edible,
binder => binder.Then(x => game.SendGhostHome(x.Data.Ghost)),
binder => binder.Then(context => context.Instance.Lives -= 1)
.TransitionTo(Dying)));
WhenEnter(Dying,
binder => binder
.Then(context => context.Instance.TimeToChangeState = context.Instance.LastTick.AddSeconds(4))
.Then(context => gameNotifications.Publish(GameNotification.Dying)));
During(Dying,
When(Tick, context => context.Data.Now >= context.Instance.TimeToChangeState)
.Then(context => game.HideGhosts(context.Instance))
.Then(context => context.Instance.TimeToChangeState = context.Data.Now.AddSeconds(4))
.IfElse(context => context.Instance.Lives > 0,
binder => binder.TransitionTo(Respawning),
binder => binder.TransitionTo(Dead)));
WhenEnter(Respawning,
binder => binder
.Then(context => gameNotifications.Publish(GameNotification.Respawning)));
During(Respawning,
When(Tick, context => context.Data.Now >= context.Instance.TimeToChangeState)
.Then(context => context.Instance.TimeToChangeState = context.Data.Now.AddSeconds(4))
.Then(context => game.MoveGhostsHome())
.Then(context => game.MovePacManHome())
.Then(context => game.ShowGhosts(context.Instance))
.TransitionTo(GhostChase));
During(Dead, Ignore(Tick));
}