[9715] Implement required basic elements for dual spec learn gossips.

Required DB data for real work. This is final part required at core side for support.

Also note that commit include

* generic implementation money cost gossip menu items so let
  implement in DB many money cost gossip operations with _fixed_ cost.
* useful CONDITION_SPELL that let implemtn menu item visible if specific
  spell known/don't known also wide used case for diff gossips.

Signed-off-by: VladimirMangos <vladimir@getmangos.com>

src/game/ObjectMgr.cpp

@@ -7381,6 +7381,15 @@ bool PlayerCondition::Meets(Player const * player) const
         }
         case CONDITION_NOITEM:
             return !player->HasItemCount(value1, value2);
+        case CONDITION_SPELL:
+        {
+            switch(value2)
+            {
+                case 0: return player->HasSpell(value1);
+                case 1: return !player->HasSpell(value1);
+            }
+            return false;
+        }
         default:
             return false;
     }
@@ -7578,6 +7587,22 @@ bool PlayerCondition::IsValid(ConditionType condition, uint32 value1, uint32 val
 
             break;
         }
+        case CONDITION_SPELL:
+        {
+            if(!sSpellStore.LookupEntry(value1))
+            {
+                sLog.outErrorDb("Spell condition requires to have non existing spell (Id: %d), skipped", value1);
+                return false;
+            }
+
+            if (value2 > 1)
+            {
+                sLog.outErrorDb("Spell condition has invalid argument %u (must be 0..1), skipped", value2);
+                return false;
+            }
+
+            break;
+        }
         case CONDITION_NONE:
             break;
     }

src/game/ObjectMgr.h

@@ -314,9 +314,10 @@ enum ConditionType
     CONDITION_RACE_CLASS            = 14,                   // race_mask    class_mask
     CONDITION_LEVEL                 = 15,                   // player_level 0, 1 or 2 (0: equal to, 1: equal or higher than, 2: equal or less than)
     CONDITION_NOITEM                = 16,                   // item_id      count
+    CONDITION_SPELL                 = 17,                   // spell_id     0, 1 (0: has spell, 1: hasn't spell)
 };
 
-#define MAX_CONDITION                 17                    // maximum value in ConditionType enum
+#define MAX_CONDITION                 18                    // maximum value in ConditionType enum
 
 struct PlayerCondition
 {

src/game/Player.cpp

@@ -12688,8 +12688,20 @@ void Player::OnGossipSelect(WorldObject* pSource, uint32 gossipListId, uint32 me
     if (menuId != gossipmenu.GetMenuId())
         return;
 
-    uint32 gossipOptionId = gossipmenu.GetItem(gossipListId).m_gOptionId;
+    GossipMenuItem const&  menu_item = gossipmenu.GetItem(gossipListId);
+
+    uint32 gossipOptionId = menu_item.m_gOptionId;
     uint64 guid = pSource->GetGUID();
+    uint32 moneyTake = menu_item.m_gBoxMoney;
+
+    // if this function called and player have money for pay MoneyTake or cheating, proccess both cases
+    if (moneyTake > 0)
+    {
+        if (GetMoney() >= moneyTake)
+            ModifyMoney(-int32(moneyTake));
+        else
+            return;                                         // cheating
+    }
 
     if (pSource->GetTypeId() == TYPEID_GAMEOBJECT)
     {

src/shared/revision_nr.h

@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "9714"
+ #define REVISION_NR "9715"
 #endif // __REVISION_NR_H__