Testing out JmonkeyEngine to make a game in Scala with Akka Actors within a pure FP layer
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package wow.doge.mygame.subsystems.events
import java.util.concurrent.TimeoutException
import scala.concurrent.duration._
import scala.reflect.ClassTag
import akka.actor.typed.ActorRef
import akka.actor.typed.LogOptions
import akka.actor.typed.Props
import akka.actor.typed.Scheduler
import akka.actor.typed.SpawnProtocol
import akka.actor.typed.SupervisorStrategy
import akka.actor.typed.scaladsl.Behaviors
import akka.util.Timeout
import com.typesafe.scalalogging.{Logger => SLogger}
import monix.bio.IO
import org.slf4j.event.Level
import wow.doge.mygame.AppError
import wow.doge.mygame.implicits._
import wow.doge.mygame.subsystems.events.Event
import wow.doge.mygame.subsystems.events.EventBus
import wow.doge.mygame.subsystems.events.TickEvent
class EventsModule(
scheduler: Scheduler,
spawnProtocol: ActorRef[SpawnProtocol.Command]
) {
import EventsModule._
implicit val s = scheduler
implicit val sp = spawnProtocol
implicit val timeout = Timeout(1.second)
val eventBusLogger = SLogger[EventBus[_]]
val playerEventBus: IO[AppError, GameEventBus[PlayerEvent]] =
createEventBus[PlayerEvent]("playerEventBus")
// val playerCameraEventBusTask =
// createEventBus[PlayerCameraEvent]("playerCameraEventBus", Level.DEBUG)
val tickEventBus: IO[AppError, GameEventBus[TickEvent]] =
createEventBus[TickEvent]("tickEventBus", Level.TRACE)
val mainEventBus: IO[AppError, GameEventBus[Event]] =
createEventBus[Event]("mainEventBus")
def createEventBus[T: ClassTag](
busName: String,
logLevel: Level = Level.DEBUG
) =
spawnProtocol
.askL(
SpawnProtocol.Spawn[EventBus.Command[T]](
Behaviors.logMessages(
logOptions = LogOptions()
.withLevel(logLevel)
.withLogger(eventBusLogger.underlying),
Behaviors
.supervise(EventBus[T]())
.onFailure[Exception](SupervisorStrategy.restart)
),
busName,
Props.empty,
_
)
)
.onErrorHandleWith {
case ex: TimeoutException =>
IO.raiseError(AppError.TimeoutError(ex.getMessage))
}
}
object EventsModule {
type GameEventBus[T] = ActorRef[EventBus.Command[T]]
}