Few more small vehicle related tweaks (#320)

* Revert back to using vehicle GUID for target gone check when jacking, as GUIDs are now retained when an object is removed from the world

* Don't allow dead vehicles to be repaired

* Don't show repair bar on dead vehicles

* Add IsDead flag to Vehicle

common/src/main/scala/net/psforever/objects/Vehicle.scala

@@ -77,6 +77,7 @@ class Vehicle(private val vehicleDef : VehicleDefinition) extends AmenityOwner
   private var faction : PlanetSideEmpire.Value = PlanetSideEmpire.TR
   private var health : Int = 1
   private var shields : Int = 0
+  private var isDead : Boolean = false
   private var decal : Int = 0
   private var trunkAccess : Option[PlanetSideGUID] = None
   private var jammered : Boolean = false
@@ -140,12 +141,23 @@ class Vehicle(private val vehicleDef : VehicleDefinition) extends AmenityOwner
     MountedIn
   }
 
+  def IsDead : Boolean = {
+    isDead
+  }
+
   def Health : Int = {
     health
   }
 
   def Health_=(assignHealth : Int) : Int = {
-    health = math.min(math.max(0, assignHealth), MaxHealth)
+    if(!isDead) {
+      health = math.min(math.max(0, assignHealth), MaxHealth)
+    }
+
+    if(health == 0) {
+      isDead = true
+    }
+
     health
   }
 

common/src/test/scala/objects/VehicleTest.scala

@@ -630,6 +630,34 @@ class VehicleControlMountingOwnedUnlockedDriverSeatTest extends ActorTest {
   }
 }
 
+class VehicleControlRepairTest extends ActorTest {
+  val probe = new TestProbe(system)
+  val vehicle = Vehicle(GlobalDefinitions.fury)
+  vehicle.GUID = PlanetSideGUID(10)
+  vehicle.Health = 50
+  vehicle.Actor = system.actorOf(Props(classOf[VehicleControl], vehicle), "vehicle-test")
+  vehicle.Zone = new Zone("test", new ZoneMap("test"), 0) {
+    VehicleEvents = probe.ref
+  }
+
+  "Can repair alive vehicle" in {
+    assert(vehicle.Health == 50)
+
+    vehicle.Health += 10
+    assert(vehicle.Health == 60)
+  }
+
+  "Can't repair dead vehicle" in {
+    assert(vehicle.Health > 0)
+
+    vehicle.Health = 0
+    assert(vehicle.Health == 0)
+
+    vehicle.Health += 10
+    assert(vehicle.Health == 0)
+  }
+}
+
 class VehicleControlShieldsChargingTest extends ActorTest {
   val probe = new TestProbe(system)
   val vehicle = Vehicle(GlobalDefinitions.fury)

pslogin/src/main/scala/WorldSessionActor.scala

@@ -861,7 +861,7 @@ class WorldSessionActor extends Actor
 
     case Zone.Lattice.SpawnPoint(zone_id, spawn_tube) =>
       var (pos, ori) = spawn_tube.SpecificPoint(continent.GUID(player.VehicleSeated) match {
-        case Some(obj : Vehicle) if obj.Health > 0 =>
+        case Some(obj : Vehicle) if !obj.IsDead =>
           obj
         case _ =>
           player
@@ -3172,8 +3172,7 @@ class WorldSessionActor extends Actor
 
       if(!target.HasGUID) {
         // Target is gone, cancel the hack.
-        // Note: I couldn't find any examples of an object that no longer has a GUID in packet captures, but sending the hacking player's GUID as the target to cancel the hack seems to work
-        sendResponse(HackMessage(progressType, player.GUID, player.GUID, 0, 0L, HackState.Cancelled, 8L))
+        sendResponse(HackMessage(progressType, target.GUID, player.GUID, 0, 0L, HackState.Cancelled, 8L))
       }
       else if(vis == HackState.Cancelled) {
         // Object moved. Cancel the hack (e.g. vehicle drove away)
@@ -5171,9 +5170,8 @@ class WorldSessionActor extends Actor
             else if(equipment.isDefined) {
               equipment.get.Definition match {
                 case GlobalDefinitions.nano_dispenser =>
-                  //TODO repairing behavior
                   if (!player.isMoving && Vector3.Distance(player.Position, obj.Position) < 5) {
-                    if (obj.Health < obj.MaxHealth) {
+                    if (obj.Health < obj.MaxHealth && !obj.IsDead) {
                       obj.Health += 48
                       //                sendResponse(QuantityUpdateMessage(PlanetSideGUID(8214),ammo_quantity_left))
                       val RepairPercent: Int = obj.Health * 100 / obj.MaxHealth
@@ -5918,7 +5916,7 @@ class WorldSessionActor extends Actor
         case Some(vehicleGUID) =>
           continent.GUID(vehicleGUID) match {
             case Some(obj : Vehicle) =>
-              if(obj.Health > 0) { //vehicle will try to charge even if destroyed
+              if(!obj.IsDead) { //vehicle will try to charge even if destroyed
                 obj.Actor ! Vehicle.ChargeShields(15)
               }
             case _ =>
@@ -8311,7 +8309,7 @@ class WorldSessionActor extends Actor
     }
     else {
       continent.GUID(player.VehicleSeated) match {
-        case Some(obj : Vehicle) if obj.Health > 0 =>
+        case Some(obj : Vehicle) if !obj.IsDead =>
           cluster ! Zone.Lattice.RequestSpawnPoint(sanctNumber, tplayer, 12) //warp gates for functioning vehicles
         case None =>
           cluster ! Zone.Lattice.RequestSpawnPoint(sanctNumber, tplayer, 7) //player character spawns