Packet: DismountBuildingMsg (#77)

* added DismountBuildingMsg packet and tests; comments are skimpy

* rebased DismountBuildingMsg

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

@@ -465,7 +465,7 @@ object GamePacketOpcode extends Enumeration {
     case 0x79 => noDecoder(TradeMessage)
     case 0x7a => noDecoder(UnknownMessage122)
     case 0x7b => noDecoder(DamageFeedbackMessage)
-    case 0x7c => noDecoder(DismountBuildingMsg)
+    case 0x7c => game.DismountBuildingMsg.decode
     case 0x7d => noDecoder(UnknownMessage125)
     case 0x7e => noDecoder(UnknownMessage126)
     case 0x7f => noDecoder(AvatarStatisticsMessage)

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

@@ -0,0 +1,28 @@
+// Copyright (c) 2016 PSForever.net to present
+package net.psforever.packet.game
+
+import net.psforever.packet.{GamePacketOpcode, Marshallable, PlanetSideGamePacket}
+import scodec.Codec
+import scodec.codecs._
+
+/**
+  * Alert that the player is "dismounting" a building.<br>
+  * <br>
+  * Paragraph in which "'dismounting' a building" is explained.
+  * @param player_guid the player
+  * @param building_guid the building
+  */
+final case class DismountBuildingMsg(player_guid : PlanetSideGUID,
+                                     building_guid : PlanetSideGUID)
+  extends PlanetSideGamePacket {
+  type Packet = DismountBuildingMsg
+  def opcode = GamePacketOpcode.DismountBuildingMsg
+  def encode = DismountBuildingMsg.encode(this)
+}
+
+object DismountBuildingMsg extends Marshallable[DismountBuildingMsg] {
+  implicit val codec : Codec[DismountBuildingMsg] = (
+    ("player_guid" | PlanetSideGUID.codec) ::
+      ("building_guid" | PlanetSideGUID.codec)
+    ).as[DismountBuildingMsg]
+}

common/src/test/scala/GamePacketTest.scala

@@ -1 +1,2 @@
 // Copyright (c) 2016 PSForever.net to present
+

common/src/test/scala/game/DismountBuildingMsgTest.scala

@@ -0,0 +1,28 @@
+// Copyright (c) 2016 PSForever.net to present
+package game
+
+import org.specs2.mutable._
+import net.psforever.packet._
+import net.psforever.packet.game._
+import scodec.bits._
+
+class DismountBuildingMsgTest extends Specification {
+  val string = hex"7C 4B00 2E00"
+
+  "decode" in {
+    PacketCoding.DecodePacket(string).require match {
+      case DismountBuildingMsg(player_guid, building_guid) =>
+        player_guid mustEqual PlanetSideGUID(75)
+        building_guid mustEqual PlanetSideGUID(46)
+      case _ =>
+        ko
+    }
+  }
+
+  "encode" in {
+    val msg = DismountBuildingMsg(PlanetSideGUID(75), PlanetSideGUID(46))
+    val pkt = PacketCoding.EncodePacket(msg).require.toByteVector
+
+    pkt mustEqual string
+  }
+}