*implemented 'empty' VehicleAI

NOTE: VehicleAI::UpdateAI runs even while the vehicle is mounted!

--HG--
branch : trunk

src/game/CombatAI.cpp

@@ -59,6 +59,11 @@ int AOEAI::Permissible(const Creature * /*creature*/)
     return PERMIT_BASE_NO;
 }
 
+int VehicleAI::Permissible(const Creature * /*creature*/)
+{
+    return PERMIT_BASE_NO;
+}
+
 void CombatAI::InitializeAI()
 {
     for (uint32 i = 0; i < CREATURE_MAX_SPELLS; ++i)
@@ -281,3 +286,22 @@ void AOEAI::UpdateAI(const uint32 /*diff*/)
     if (!me->HasAura(me->m_spells[0]))
         me->CastSpell(me, me->m_spells[0],false);
 }
+
+//////////////
+//VehicleAI
+//////////////
+
+//NOTE: VehicleAI::UpdateAI runs even while the vehicle is mounted
+void VehicleAI::UpdateAI(const uint32 diff)
+{
+}
+
+void VehicleAI::Reset()
+{
+    m_vehicle->Reset();    
+}
+
+void VehicleAI::OnCharmed(bool apply)
+{
+    m_IsVehicleInUse = apply;
+}

src/game/CombatAI.h

@@ -100,5 +100,22 @@ struct AOEAI : public CreatureAI
 
         static int Permissible(const Creature *);
 };
+#define VEHICLE_RESET_TIME 5000
+struct VehicleAI : public CreatureAI
+{
+    public:
+        explicit VehicleAI(Creature *c) : CreatureAI(c), m_vehicle(c->GetVehicleKit()), m_IsVehicleInUse(false) {}
+      
+        void UpdateAI(const uint32 diff);
+        static int Permissible(const Creature *);
+        void Reset();
+        void MoveInLineOfSight(Unit *) {}
+        void AttackStart(Unit *) {}
+        void OnCharmed(bool apply);
+
+    private:
+        Vehicle* m_vehicle;
+        bool m_IsVehicleInUse;
+};
 
 #endif

src/game/CreatureAIRegistry.cpp

@@ -50,6 +50,7 @@ namespace AIRegistry
         (new CreatureAIFactory<TurretAI>("TurretAI"))->RegisterSelf();
         (new CreatureAIFactory<CreatureEventAI>("EventAI"))->RegisterSelf();
         (new CreatureAIFactory<AOEAI>("AOEAI"))->RegisterSelf();
+        (new CreatureAIFactory<VehicleAI>("VehicleAI"))->RegisterSelf();
 
         (new MovementGeneratorFactory<RandomMovementGenerator<Creature> >(RANDOM_MOTION_TYPE))->RegisterSelf();
         (new MovementGeneratorFactory<WaypointMovementGenerator<Creature> >(WAYPOINT_MOTION_TYPE))->RegisterSelf();

src/game/CreatureAISelector.cpp

@@ -54,9 +54,11 @@ namespace FactorySelector
         // select by NPC flags
         if (!ai_factory)
         {
-            if (creature->HasUnitTypeMask(UNIT_MASK_CONTROLABLE_GUARDIAN) && ((Guardian*)creature)->GetOwner()->GetTypeId() == TYPEID_PLAYER)
+            if (creature->IsVehicle())
+                ai_factory = ai_registry.GetRegistryItem("VehicleAI");
+            else if (creature->HasUnitTypeMask(UNIT_MASK_CONTROLABLE_GUARDIAN) && ((Guardian*)creature)->GetOwner()->GetTypeId() == TYPEID_PLAYER)
                 ai_factory = ai_registry.GetRegistryItem("PetAI");
-            else if (creature->IsVehicle() || creature->HasFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_SPELLCLICK))
+            else if (creature->HasFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_SPELLCLICK))
                 ai_factory = ai_registry.GetRegistryItem("NullCreatureAI");
             else if (creature->isGuard())
                 ai_factory = ai_registry.GetRegistryItem("GuardAI");

src/game/Unit.cpp

@@ -15167,17 +15167,21 @@ void Unit::RemoveCharmedBy(Unit *charmer)
     if (GetTypeId() == TYPEID_UNIT)
     {
         this->ToCreature()->AI()->OnCharmed(false);
-        this->ToCreature()->AIM_Initialize();
 
-        if (this->ToCreature()->AI() && charmer && charmer->isAlive())
-            this->ToCreature()->AI()->AttackStart(charmer);
-        /*if (isAlive() && this->ToCreature()->IsAIEnabled)
+        if (type != CHARM_TYPE_VEHICLE)//Vehicles' AI is never modified
         {
-            if (charmer && !IsFriendlyTo(charmer))
+            this->ToCreature()->AIM_Initialize();
+
+            if (this->ToCreature()->AI() && charmer && charmer->isAlive())
                 this->ToCreature()->AI()->AttackStart(charmer);
-            else
-                this->ToCreature()->AI()->EnterEvadeMode();
-        }*/
+            /*if (isAlive() && this->ToCreature()->IsAIEnabled)
+            {
+                if (charmer && !IsFriendlyTo(charmer))
+                    this->ToCreature()->AI()->AttackStart(charmer);
+                else
+                    this->ToCreature()->AI()->EnterEvadeMode();
+            }*/
+        }
     }
     else
         this->ToPlayer()->SetClientControl(this, 1);

src/game/Vehicle.h

@@ -74,6 +74,7 @@ class Vehicle
         void RelocatePassengers(float x, float y, float z, float ang);
         void RemoveAllPassengers();
         void Dismiss();
+        bool IsVehicleInUse() { return m_Seats.begin() != m_Seats.end(); }
 
         SeatMap m_Seats;