fixed the bg ballance system By Farah

In this patch only in preparation state invites anyone.
If BG is already started do not allow to join too much players of one faction and allow to join one person if the sides are equal.

--HG--
branch : trunk

1 files changed, 49 insertions, 3 deletions

diff --git a/src/game/BattleGround.cpp b/src/game/BattleGround.cpp
index 43c3516722b..2aa03fd0e80 100644
--- a/src/game/BattleGround.cpp
+++ b/src/game/BattleGround.cpp
@@ -1277,10 +1277,56 @@ void BattleGround::RemoveFromBGFreeSlotQueue()
 // returns the number how many players can join battleground to MaxPlayersPerTeam
 uint32 BattleGround::GetFreeSlotsForTeam(uint32 Team) const
 {
-    //return free slot count to MaxPlayerPerTeam
-    if (GetStatus() == STATUS_WAIT_JOIN || GetStatus() == STATUS_IN_PROGRESS)
+    //if BG is starting ... invite anyone
+    if (GetStatus() == STATUS_WAIT_JOIN)
         return (GetInvitedCount(Team) < GetMaxPlayersPerTeam()) ? GetMaxPlayersPerTeam() - GetInvitedCount(Team) : 0;
-
+    //if BG is already started .. do not allow to join too much players of one faction
+    uint32 otherTeam;
+    uint32 otherIn;
+    if (Team == ALLIANCE)
+    {
+        otherTeam = GetInvitedCount(HORDE);
+        otherIn = GetPlayersCountByTeam(HORDE);
+    }
+    else
+    {
+        otherTeam = GetInvitedCount(ALLIANCE);
+        otherIn = GetPlayersCountByTeam(ALLIANCE);
+    }
+    if (GetStatus() == STATUS_IN_PROGRESS)
+    {
+        // difference based on ppl invited (not necessarily entered battle)
+        // default: allow 0
+        uint32 diff = 0;
+        // allow join one person if the sides are equal (to fill up bg to minplayersperteam)
+        if (otherTeam == GetInvitedCount(Team))
+            diff = 1;
+        // allow join more ppl if the other side has more players
+        else if(otherTeam > GetInvitedCount(Team))
+            diff = otherTeam - GetInvitedCount(Team);
+
+        // difference based on max players per team (don't allow inviting more)
+        uint32 diff2 = (GetInvitedCount(Team) < GetMaxPlayersPerTeam()) ? GetMaxPlayersPerTeam() - GetInvitedCount(Team) : 0;
+        // difference based on players who already entered
+        // default: allow 0
+        uint32 diff3 = 0;
+        // allow join one person if the sides are equal (to fill up bg minplayersperteam)
+        if (otherIn == GetPlayersCountByTeam(Team))
+            diff3 = 1;
+        // allow join more ppl if the other side has more players
+        else if (otherIn > GetPlayersCountByTeam(Team))
+            diff3 = otherIn - GetPlayersCountByTeam(Team);
+        // or other side has less than minPlayersPerTeam
+        else if (GetInvitedCount(Team) <= GetMinPlayersPerTeam())
+            diff3 = GetMinPlayersPerTeam() - GetInvitedCount(Team) + 1;
+
+        // return the minimum of the 3 differences
+
+        // min of diff and diff 2
+        diff = diff < diff2 ? diff : diff2;
+        // min of diff, diff2 and diff3
+        return diff < diff3 ? diff : diff3 ;
+    }
     return 0;
 }