Restructure repository

* Move /common/src to /src
* Move services to net.psforever package
* Move /pslogin to /server

src/test/scala/game/DensityLevelUpdateMessageTest.scala

@@ -0,0 +1,52 @@
+// Copyright (c) 2017 PSForever
+package game
+
+import org.specs2.mutable._
+import net.psforever.packet._
+import net.psforever.packet.game._
+import scodec.bits._
+
+class DensityLevelUpdateMessageTest extends Specification {
+  val string = hex"cd 0100 1f4e 000000"
+
+  "decode" in {
+    PacketCoding.DecodePacket(string).require match {
+      case DensityLevelUpdateMessage(zone_id, building_id, unk) =>
+        zone_id mustEqual 1
+        building_id mustEqual 19999
+        unk.length mustEqual 8
+        unk.head mustEqual 0
+        unk(1) mustEqual 0
+        unk(2) mustEqual 0
+        unk(3) mustEqual 0
+        unk(4) mustEqual 0
+        unk(5) mustEqual 0
+        unk(6) mustEqual 0
+        unk(7) mustEqual 0
+      case _ =>
+        ko
+    }
+  }
+
+  "encode" in {
+    val msg = DensityLevelUpdateMessage(1, 19999, List(0, 0, 0, 0, 0, 0, 0, 0))
+    val pkt = PacketCoding.EncodePacket(msg).require.toByteVector
+
+    pkt mustEqual string
+  }
+
+  "encode (failure; wrong number of list entries)" in {
+    val msg = DensityLevelUpdateMessage(1, 19999, List(0))
+    PacketCoding.EncodePacket(msg).isSuccessful mustEqual false
+  }
+
+  "encode (failure; list number too big)" in {
+    val msg = DensityLevelUpdateMessage(1, 19999, List(0, 0, 0, 0, 0, 0, 0, 8))
+    PacketCoding.EncodePacket(msg).isSuccessful mustEqual false
+  }
+
+  "encode (failure; list number too small)" in {
+    val msg = DensityLevelUpdateMessage(1, 19999, List(0, 0, 0, 0, 0, -1, 0, 0))
+    PacketCoding.EncodePacket(msg).isSuccessful mustEqual false
+  }
+}