[7366] Enabled skirmish arena matches for same faction.

Patch is tested and should not add crashes.

Signed-off-by: Triply <triply@getmangos.com>

src/game/BattleGroundMgr.cpp

@@ -583,7 +583,7 @@ bool BattleGroundQueue::CheckPremadeMatch(BGQueueIdBasedOnLevel queue_id, uint32
     return false;
 }
 
-//this function tries to create battleground or arena with MinPlayersPerTeam against MinPlayersPerTeam
+// this method tries to create battleground or arena with MinPlayersPerTeam against MinPlayersPerTeam
 bool BattleGroundQueue::CheckNormalMatch(BattleGround* bg_template, BGQueueIdBasedOnLevel queue_id, uint32 minPlayers, uint32 maxPlayers)
 {
     GroupsQueueType::const_iterator itr_team[BG_TEAMS_COUNT];
@@ -626,6 +626,65 @@ bool BattleGroundQueue::CheckNormalMatch(BattleGround* bg_template, BGQueueIdBas
     return m_SelectionPools[BG_TEAM_ALLIANCE].GetPlayerCount() >= minPlayers && m_SelectionPools[BG_TEAM_HORDE].GetPlayerCount() >= minPlayers;
 }
 
+// this method will check if we can invite players to same faction skirmish match
+bool BattleGroundQueue::CheckSkirmishForSameFaction(BGQueueIdBasedOnLevel queue_id, uint32 minPlayersPerTeam)
+{
+    if( m_SelectionPools[BG_TEAM_ALLIANCE].GetPlayerCount() < minPlayersPerTeam && m_SelectionPools[BG_TEAM_HORDE].GetPlayerCount() < minPlayersPerTeam )
+        return false;
+    uint32 teamIndex = BG_TEAM_ALLIANCE;
+    uint32 otherTeam = BG_TEAM_HORDE;
+    uint32 otherTeamId = HORDE;
+    if ( m_SelectionPools[BG_TEAM_HORDE].GetPlayerCount() == minPlayersPerTeam )
+    {
+        teamIndex = BG_TEAM_HORDE;
+        otherTeam = BG_TEAM_ALLIANCE;
+        otherTeamId = ALLIANCE;
+    }
+    //clear other team's selection
+    m_SelectionPools[otherTeam].Init();
+    //store last ginfo pointer
+    GroupQueueInfo* ginfo = m_SelectionPools[teamIndex].SelectedGroups.back();
+    //set itr_team to group that was added to selection pool latest
+    GroupsQueueType::iterator itr_team = m_QueuedGroups[queue_id][BG_QUEUE_NORMAL_ALLIANCE + teamIndex].begin();
+    for(; itr_team != m_QueuedGroups[queue_id][BG_QUEUE_NORMAL_ALLIANCE + teamIndex].end(); ++itr_team)
+        if( ginfo == *itr_team )
+            break;
+    if( itr_team == m_QueuedGroups[queue_id][BG_QUEUE_NORMAL_ALLIANCE + teamIndex].end() )
+        return false;
+    GroupsQueueType::iterator itr_team2 = ++itr_team;
+    //invite players to other selection pool
+    for(; itr_team2 != m_QueuedGroups[queue_id][BG_QUEUE_NORMAL_ALLIANCE + teamIndex].end(); ++itr_team2)
+    {
+        if( !(*itr_team2)->IsInvitedToBGInstanceGUID )
+        {
+            m_SelectionPools[otherTeam].AddGroup(*itr_team2, minPlayersPerTeam);
+            if( m_SelectionPools[otherTeam].GetPlayerCount() == minPlayersPerTeam )
+                break;
+        }
+    }
+    if( m_SelectionPools[otherTeam].GetPlayerCount() != minPlayersPerTeam )
+        return false;
+
+    //here we have correct 2 selections and we need to change one teams team and move selection pool teams to other team's queue
+    for(GroupsQueueType::iterator itr = m_SelectionPools[otherTeam].SelectedGroups.begin(); itr != m_SelectionPools[otherTeam].SelectedGroups.end(); ++itr)
+    {
+        //set correct team
+        (*itr)->Team = otherTeamId;
+        //add team to other queue
+        m_QueuedGroups[queue_id][BG_QUEUE_NORMAL_ALLIANCE + otherTeam].push_front(*itr);
+        //remove team from old queue
+        for(GroupsQueueType::iterator itr2 = itr_team; itr2 != m_QueuedGroups[queue_id][BG_QUEUE_NORMAL_ALLIANCE + teamIndex].end(); ++itr2)
+        {
+            if( *itr2 == *itr )
+            {
+                m_QueuedGroups[queue_id][BG_QUEUE_NORMAL_ALLIANCE + teamIndex].erase(itr2);
+                break;
+            }
+        }
+    }
+    return true;
+}
+
 /*
 this method is called when group is inserted, or player / group is removed from BG Queue - there is only one player's status changed, so we don't use while(true) cycles to invite whole queue
 it must be called after fully adding the members of a group to ensure group joining
@@ -754,7 +813,8 @@ void BattleGroundQueue::Update(BattleGroundTypeId bgTypeId, BGQueueIdBasedOnLeve
     if( !isRated )
     {
         // if there are enough players in pools, start new battleground or non rated arena
-        if( CheckNormalMatch(bg_template, queue_id, MinPlayersPerTeam, MaxPlayersPerTeam) )
+        if( CheckNormalMatch(bg_template, queue_id, MinPlayersPerTeam, MaxPlayersPerTeam)
+            || (bg_template->isArena() && CheckSkirmishForSameFaction(queue_id, MinPlayersPerTeam)) )
         {
             // we successfully created a pool
             BattleGround * bg2 = NULL;

src/game/BattleGroundMgr.h

@@ -74,6 +74,7 @@ class BattleGroundQueue
         void FillPlayersToBG(BattleGround* bg, BGQueueIdBasedOnLevel queue_id);
         bool CheckPremadeMatch(BGQueueIdBasedOnLevel queue_id, uint32 MinPlayersPerTeam, uint32 MaxPlayersPerTeam);
         bool CheckNormalMatch(BattleGround* bg_template, BGQueueIdBasedOnLevel queue_id, uint32 minPlayers, uint32 maxPlayers);
+        bool CheckSkirmishForSameFaction(BGQueueIdBasedOnLevel queue_id, uint32 minPlayersPerTeam);
         GroupQueueInfo * AddGroup(Player * leader, BattleGroundTypeId bgTypeId, uint8 ArenaType, bool isRated, bool isPremade, uint32 ArenaRating, uint32 ArenaTeamId = 0);
         void AddPlayer(Player *plr, GroupQueueInfo *ginfo);
         void RemovePlayer(const uint64& guid, bool decreaseInvitedCount);

src/shared/revision_nr.h

@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "7365"
+ #define REVISION_NR "7366"
 #endif // __REVISION_NR_H__