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.utils.wrappers.jme
import cats.effect.Sync
import com.jme3.{scene => jmes}
import monix.execution.annotations.UnsafeBecauseImpure
import monix.reactive.Observable
import wow.doge.mygame.implicits._
import com.jme3.light.Light
trait NodeDelegate {
/**
* Get the underlying wrapped value
*/
@UnsafeBecauseImpure
def unsafeDelegate: jmes.Node
}
abstract class NodeWrapper[F[_]: Sync] protected (node: jmes.Node) {
def children: Observable[jmes.Spatial] = node.observableChildren
def attachChild(n: jmes.Spatial): F[Unit] = Sync[F].delay(node.attachChild(n))
def add(wn: Node[F]): F[Unit] =
Sync[F].delay(node.attachChild(wn.unsafeDelegate))
def remove(n: jmes.Spatial): F[Unit] =
Sync[F].delay(node.detachChild(n))
def remove(wn: Node[F]): F[Unit] =
Sync[F].delay(node.detachChild(wn.unsafeDelegate))
def addLight(light: Light) =
Sync[F].delay {
node.addLight(light)
}
def removeLight(light: Light) =
Sync[F].delay {
node.removeLight(light)
}
def asSpatial: F[jmes.Spatial] = Sync[F].delay(node)
}
object NodeWrapper {
implicit class NodeOps[F[_]](private val nw: NodeWrapper[F]) extends AnyVal {
def +=(n: jmes.Spatial) = nw.attachChild(n)
def +=(n: Node[F]) = nw.add(n)
def -=(n: jmes.Spatial) = nw.remove(n)
def -=(wn: Node[F]) = nw.remove(wn)
def +=(light: Light) = {
nw.addLight(light)
}
def -=(light: Light) = {
nw.removeLight(light)
}
}
}
final class Node[F[_]: Sync] private (node: jmes.Node)
extends NodeWrapper[F](node)
with NodeDelegate {
/**
* Get the underlying wrapped value
*/
@UnsafeBecauseImpure
def unsafeDelegate = node
}
object Node {
def apply[F[_]: Sync](name: String) = new Node[F](new jmes.Node(name))
def apply[F[_]: Sync](n: jmes.Node) = new Node[F](n)
}
final class AppNode[F[_]: Sync] private (node: jmes.Node)
extends NodeWrapper[F](node)
object AppNode {
def apply[F[_]: Sync](name: String) = new AppNode[F](new jmes.Node(name))
def apply[F[_]: Sync](n: jmes.Node) = new AppNode[F](n)
}