Packet: ZoneForcedCavernConnectionsMessage (#122)

* initial ZoneForcedCavernConnectionsMessage packet and tests

* adjusted tests so that 2u field has a value; minor comment change to packet file

common/src/main/scala/net/psforever/packet/GamePacketOpcode.scala

@@ -588,7 +588,7 @@ object GamePacketOpcode extends Enumeration {
     case 0xe0 => noDecoder(SquadBindInfoMessage)
     case 0xe1 => noDecoder(AudioSequenceMessage)
     case 0xe2 => noDecoder(SquadFacilityBindInfoMessage)
-    case 0xe3 => noDecoder(ZoneForcedCavernConnectionsMessage)
+    case 0xe3 => game.ZoneForcedCavernConnectionsMessage.decode
     case 0xe4 => noDecoder(MissionActionMessage)
     case 0xe5 => noDecoder(MissionKillTriggerMessage)
     case 0xe6 => game.ReplicationStreamMessage.decode

common/src/main/scala/net/psforever/packet/game/ZoneForcedCavernConnectionsMessage.scala

@@ -0,0 +1,26 @@
+// Copyright (c) 2017 PSForever
+package net.psforever.packet.game
+
+import net.psforever.packet.{GamePacketOpcode, Marshallable, PlanetSideGamePacket}
+import scodec.Codec
+import scodec.codecs._
+
+/**
+  * Dispatched to the client in regards to cavern connections via geowarp gates.
+  * @param zone the zone
+  * @param unk na
+  */
+final case class ZoneForcedCavernConnectionsMessage(zone : PlanetSideGUID,
+                                                    unk : Int)
+  extends PlanetSideGamePacket {
+  type Packet = ZoneForcedCavernConnectionsMessage
+  def opcode = GamePacketOpcode.ZoneForcedCavernConnectionsMessage
+  def encode = ZoneForcedCavernConnectionsMessage.encode(this)
+}
+
+object ZoneForcedCavernConnectionsMessage extends Marshallable[ZoneForcedCavernConnectionsMessage] {
+  implicit val codec : Codec[ZoneForcedCavernConnectionsMessage] = (
+    ("zone" | PlanetSideGUID.codec) ::
+      ("unk" | uint2L)
+    ).as[ZoneForcedCavernConnectionsMessage]
+}

common/src/test/scala/game/ZoneForcedCavernConnectionsMessageTest.scala

@@ -0,0 +1,29 @@
+// Copyright (c) 2017 PSForever
+package game
+
+import org.specs2.mutable._
+import net.psforever.packet._
+import net.psforever.packet.game._
+import net.psforever.types.Vector3
+import scodec.bits._
+
+class ZoneForcedCavernConnectionsMessageTest extends Specification {
+  val string = hex"E3200040"
+
+  "decode" in {
+    PacketCoding.DecodePacket(string).require match {
+      case ZoneForcedCavernConnectionsMessage(zone, unk) =>
+        zone mustEqual PlanetSideGUID(32)
+        unk mustEqual 1
+      case _ =>
+        ko
+    }
+  }
+
+  "encode" in {
+    val msg = ZoneForcedCavernConnectionsMessage(PlanetSideGUID(32), 1)
+    val pkt = PacketCoding.EncodePacket(msg).require.toByteVector
+
+    pkt mustEqual string
+  }
+}