Packet: ChangeAmmoMessage

* Add ChangeAmmoMessage packet

* Add ChangeAmmoMessage test

* Add ChangeAmmoMessage handler stub

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

@@ -404,7 +404,7 @@ object GamePacketOpcode extends Enumeration {
 
       // OPCODE 70
       case ChangeFireModeMessage => game.ChangeFireModeMessage.decode
-      case ChangeAmmoMessage => noDecoder(opcode)
+      case ChangeAmmoMessage => game.ChangeAmmoMessage.decode
       case TimeOfDayMessage => noDecoder(opcode)
       case UnknownMessage73 => noDecoder(opcode)
       case SpawnRequestMessage => noDecoder(opcode)

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

@@ -0,0 +1,21 @@
+// Copyright (c) 2016 PSForever.net to present
+package net.psforever.packet.game
+
+import net.psforever.packet.{GamePacketOpcode, Marshallable, PacketHelpers, PlanetSideGamePacket}
+import scodec.Codec
+import scodec.codecs._
+
+final case class ChangeAmmoMessage(item_guid : PlanetSideGUID,
+                                   unk1 : Long)
+  extends PlanetSideGamePacket {
+  type Packet = ChangeAmmoMessage
+  def opcode = GamePacketOpcode.ChangeAmmoMessage
+  def encode = ChangeAmmoMessage.encode(this)
+}
+
+object ChangeAmmoMessage extends Marshallable[ChangeAmmoMessage] {
+  implicit val codec : Codec[ChangeAmmoMessage] = (
+      ("item_guid" | PlanetSideGUID.codec) ::
+        ("unk1" | uint32L)
+    ).as[ChangeAmmoMessage]
+}

common/src/test/scala/GamePacketTest.scala

@@ -414,5 +414,26 @@ class GamePacketTest extends Specification {
         pkt mustEqual string
       }
     }
+
+    "ChangeAmmoMessage" should {
+      val string = hex"47 4E00 00000000"
+
+      "decode" in {
+        PacketCoding.DecodePacket(string).require match {
+          case ChangeAmmoMessage(item_guid, unk1) =>
+            item_guid mustEqual PlanetSideGUID(78)
+            unk1 mustEqual 0
+          case default =>
+            ko
+        }
+      }
+
+      "encode" in {
+        val msg = ChangeAmmoMessage(PlanetSideGUID(78), 0)
+        val pkt = PacketCoding.EncodePacket(msg).require.toByteVector
+
+        pkt mustEqual string
+      }
+    }
   }
 }

pslogin/src/main/scala/WorldSessionActor.scala

@@ -188,6 +188,9 @@ class WorldSessionActor extends Actor with MDCContextAware {
     case msg @ MoveItemMessage(item_guid, avatar_guid_1, avatar_guid_2, dest, unk1) =>
       log.info("MoveItem: " + msg)
 
+    case msg @ ChangeAmmoMessage(item_guid, unk1) =>
+      log.info("ChangeAmmo: " + msg)
+
     case default => log.debug(s"Unhandled GamePacket ${pkt}")
   }