feat(premium): zero cooldown hearthstone for premium players

lua_scripts/MWPremium/mwpremium.lua

@@ -2,11 +2,13 @@ local PLAYER_EVENT_ON_LOGIN = 3
 local PLAYER_EVENT_ON_SPELL_CAST = 5
 local PLAYER_EVENT_ON_LOGOUT = 4
 local PLAYER_EVENT_ON_COMMAND = 42
+local PLAYER_EVENT_ON_BEFORE_TELEPORT = 67
 
 
 local ACCOUNT_FLAG_RECURRING_BILLING = 8192
 
 local SUMMON_SQUIRE_SPELL_ID = 80000
+local HEARTHSTONE_SPELL_ID = 8690
 
 local SQUIRE_CREATURE_TEMPLATE_ID = 9000001
 
@@ -184,9 +186,18 @@ local function OnLogout(event, player)
     squires_table[player:GetGUID()] = nil
 end
 
+local function OnBeforeTeleport(player, mapid, x, y, z, orientation, options, target)
+    if not IsPremium(player) then return end
+
+    if player:FindCurrentSpellBySpellId(HEARTHSTONE_SPELL_ID) then
+        player:ResetSpellCooldown(HEARTHSTONE_SPELL_ID, true)
+    end
+end
+
 RegisterCreatureGossipEvent(SQUIRE_CREATURE_TEMPLATE_ID, 1, OnGossipHello)
 RegisterCreatureGossipEvent(SQUIRE_CREATURE_TEMPLATE_ID, 2, OnGossipSelect)
 RegisterPlayerEvent(PLAYER_EVENT_ON_LOGIN, OnLogin)
 RegisterPlayerEvent(PLAYER_EVENT_ON_LOGOUT, OnLogout)
 RegisterPlayerEvent(PLAYER_EVENT_ON_COMMAND, OnCommand)
 RegisterPlayerEvent(PLAYER_EVENT_ON_SPELL_CAST, OnSpellCast)
+RegisterPlayerEvent(PLAYER_EVENT_ON_BEFORE_TELEPORT, OnBeforeTeleport)