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193 lines
5.2 KiB
193 lines
5.2 KiB
package wow.doge.mygame.game
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import cats.effect.concurrent.Deferred
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import com.jme3.app.state.AppStateManager
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import com.jme3.asset.AssetManager
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import com.jme3.input.InputManager
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import com.jme3.scene.Node
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import com.jme3.scene.Spatial
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import com.softwaremill.tagging._
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import com.typesafe.scalalogging.{Logger => SLogger}
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import io.odin.Logger
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import monix.bio.IO
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import monix.bio.Task
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import monix.catnap.ConcurrentChannel
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import monix.catnap.ConsumerF
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import monix.catnap.Semaphore
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import monix.eval.Coeval
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import wow.doge.mygame.game.subsystems.ui.JFxUI
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sealed trait Error
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case object FlyCamNotExists extends Error
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object GameAppTags {
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sealed trait RootNode
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sealed trait GuiNode
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}
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class GameApp(logger: Logger[Task], val app: SimpleAppExt) {
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import Ops._
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def stateManager: Task[AppStateManager] = Task(app.getStateManager())
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def inputManager: Task[InputManager] = Task(app.getInputManager())
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def assetManager: Task[AssetManager] = Task(app.getAssetManager())
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def guiNode = Task(app.getGuiNode().taggedWith[GameAppTags.GuiNode])
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def addToGuiNode = guiNode.flatMap(rn => Task(new AddToNode(rn)))
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def flyCam =
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IO(app.getFlyByCamera()).onErrorHandleWith(_ =>
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IO.raiseError(FlyCamNotExists)
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)
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def camera = Task(app.getCamera())
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def viewPort = Task(app.getViewPort())
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def rootNode = Task(app.getRootNode().taggedWith[GameAppTags.RootNode])
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// def rootNode2 = SynchedObject(app.getRootNode())
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def addToRootNode = rootNode.flatMap(rn => Task(new AddToNode(rn)))
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def enqueue(cb: () => Unit) =
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app.enqueue(new Runnable {
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override def run() = cb()
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})
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def enqueueL[T](cb: () => T): Task[T] = app.enqueueL(cb)
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def start = Task(app.start())
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def stop = Task(app.stop())
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def scheduler = app.scheduler
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def jfxUI = JFxUI(app)
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}
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object GameApp {
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class WrappedNode(node: Node, lock: Semaphore[Task]) {
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def +=(spat: Spatial) = lock.withPermit(Task(node.attachChild(spat)))
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}
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/**
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* Synchronization wrapper for a mutable object
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*
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* @param obj the mutable object
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* @param lock lock for synchronization
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*/
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class SynchedObject[A](obj: A, lock: Semaphore[Task]) {
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def modify(f: A => Unit): Task[Unit] =
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lock.withPermit(Task(f(obj)))
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def flatModify(f: A => Task[Unit]): Task[Unit] =
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lock.withPermit(f(obj))
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def get: Task[A] = lock.withPermit(Task(obj))
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}
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object SynchedObject {
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def apply[A](obj: A) =
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Semaphore[Task](1).flatMap(lock => Task(new SynchedObject(obj, lock)))
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}
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}
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object Ops {
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final class AddToNode[T <: Node](private val node: T) extends AnyVal {
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/**
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* Pure version
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*/
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def apply(spatial: Spatial)(implicit logger: Logger[Task]) =
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logger.debug(
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s"Request to add spatial with name ${spatial.getName()} to node ${node.getName()}"
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) >> Task(node.attachChild(spatial))
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/**
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* Impure version
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*/
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def apply(spatial: Spatial)(implicit logger: SLogger) =
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Coeval {
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logger.debug(
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s"Request to add spatial with name ${spatial.getName()} to node ${node.getName()}"
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)
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node.attachChild(spatial)
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}
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}
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}
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object SpawnSystem {
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sealed trait Result
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final case object Ok extends Result
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sealed trait Complete
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final case object Complete extends Complete
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sealed trait SpawnRequest
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final case class SpawnSpatial(nodeTask: Task[Node]) extends SpawnRequest
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final case class SpawnRequestWrapper(
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spawnRequest: SpawnRequest,
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result: Deferred[Task, Result]
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)
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def apply(logger: Logger[Task]) =
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for {
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spawnChannel <- ConcurrentChannel[Task].of[Complete, SpawnRequestWrapper]
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spawnSystem <- Task(new SpawnSystem(logger, spawnChannel))
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consumer <-
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spawnChannel.consume
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.use(consumer => spawnSystem.receive(consumer))
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.startAndForget
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} yield (spawnSystem)
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}
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class SpawnSystem(
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logger: Logger[Task],
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spawnChannel: ConcurrentChannel[
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Task,
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SpawnSystem.Complete,
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SpawnSystem.SpawnRequestWrapper
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]
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) {
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import SpawnSystem._
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for {
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spawnSystem <- SpawnSystem(logger)
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res <- spawnSystem.request(SpawnSpatial(Task(new Node("Test"))))
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} yield ()
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// val spawnChannel = ConcurrentChannel[Task].of[Result, SpawnRequest]
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private def receive(
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consumer: ConsumerF[Task, Complete, SpawnRequestWrapper]
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): Task[Unit] =
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consumer.pull.flatMap {
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case Right(message) =>
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for {
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_ <-
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logger
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.debug(s"Received spawn request $message")
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_ <- handleSpawn(message)
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} yield receive(consumer)
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case Left(r) =>
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logger.info("Closing Spawn System")
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}
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private def handleSpawn(spawnRequestWrapper: SpawnRequestWrapper) =
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spawnRequestWrapper match {
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case SpawnRequestWrapper(spawnRequest, result) =>
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spawnRequest match {
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case SpawnSpatial(spatialTask) =>
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spatialTask.flatMap(spatial =>
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logger.debug(
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s"Spawning spatial with name ${spatial.getName()}"
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) >> result
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.complete(Ok)
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)
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}
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}
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def request(spawnRequest: SpawnRequest) =
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for {
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d <- Deferred[Task, Result]
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_ <- spawnChannel.push(SpawnRequestWrapper(spawnRequest, d))
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res <- d.get
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} yield (res)
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def stop = spawnChannel.halt(Complete)
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}
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