initial work on TargetingImplantRequest packet

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

@@ -533,7 +533,7 @@ object GamePacketOpcode extends Enumeration {
     case 0xb2 => game.VoiceHostInfo.decode
     case 0xb3 => noDecoder(BattleplanMessage)
     case 0xb4 => game.BattleExperienceMessage.decode
-    case 0xb5 => noDecoder(TargetingImplantRequest)
+    case 0xb5 => game.TargetingImplantRequest.decode
     case 0xb6 => game.ZonePopulationUpdateMessage.decode
     case 0xb7 => game.DisconnectMessage.decode
     // 0xb8

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

@@ -0,0 +1,35 @@
+// Copyright (c) 2017 PSForever
+package net.psforever.packet.game
+
+import net.psforever.packet.{GamePacketOpcode, Marshallable, PlanetSideGamePacket}
+import scodec.Codec
+import scodec.codecs._
+import shapeless.{::, HNil}
+
+final case class TargetRequest(target_guid : PlanetSideGUID,
+                               unk : Boolean)
+
+final case class TargetingImplantRequest(target_list : List[TargetRequest])
+  extends PlanetSideGamePacket {
+  type Packet = TargetingImplantRequest
+  def opcode = GamePacketOpcode.TargetingImplantRequest
+  def encode = TargetingImplantRequest.encode(this)
+}
+
+object TargetingImplantRequest extends Marshallable[TargetingImplantRequest] {
+  private val request_codec : Codec[TargetRequest] = (
+    ("target_guid" | PlanetSideGUID.codec) ::
+      ("unk" | bool)
+  ).xmap[TargetRequest] (
+    {
+      case a :: b :: HNil =>
+        TargetRequest(a, b)
+    },
+    {
+      case TargetRequest(a, b) =>
+        a :: b :: HNil
+    }
+  )
+
+  implicit val codec : Codec[TargetingImplantRequest] = ("target_list" | listOfN(intL(6), request_codec)).as[TargetingImplantRequest]
+}