1 files changed, 76 insertions, 0 deletions
diff --git a/src/server/game/Grids/GridStates.cpp b/src/server/game/Grids/GridStates.cpp
new file mode 100644
index 00000000000..9d39531cfad
--- /dev/null
+++ b/src/server/game/Grids/GridStates.cpp
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
+ *
+ * Copyright (C) 2008-2010 Trinity <http://www.trinitycore.org/>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "GridStates.h"
+#include "GridNotifiers.h"
+#include "GameSystem/Grid.h"
+#include "Log.h"
+
+void
+InvalidState::Update(Map &, NGridType &, GridInfo &, const uint32 &/*x*/, const uint32 &/*y*/, const uint32 &) const
+{
+}
+
+void
+ActiveState::Update(Map &m, NGridType &grid, GridInfo & info, const uint32 &x, const uint32 &y, const uint32 &t_diff) const
+{
+    // Only check grid activity every (grid_expiry/10) ms, because it's really useless to do it every cycle
+    info.UpdateTimeTracker(t_diff);
+    if (info.getTimeTracker().Passed())
+    {
+        if (grid.ActiveObjectsInGrid() == 0 && !m.ActiveObjectsNearGrid(x, y))
+        {
+            ObjectGridStoper stoper(grid);
+            stoper.StopN();
+            grid.SetGridState(GRID_STATE_IDLE);
+            sLog.outDebug("Grid[%u,%u] on map %u moved to IDLE state", x, y, m.GetId());
+        }
+        else
+        {
+            m.ResetGridExpiry(grid, 0.1f);
+        }
+    }
+}
+
+void
+IdleState::Update(Map &m, NGridType &grid, GridInfo &, const uint32 &x, const uint32 &y, const uint32 &) const
+{
+    m.ResetGridExpiry(grid);
+    grid.SetGridState(GRID_STATE_REMOVAL);
+    sLog.outDebug("Grid[%u,%u] on map %u moved to REMOVAL state", x, y, m.GetId());
+}
+
+void
+RemovalState::Update(Map &m, NGridType &grid, GridInfo &info, const uint32 &x, const uint32 &y, const uint32 &t_diff) const
+{
+    if (!info.getUnloadLock())
+    {
+        info.UpdateTimeTracker(t_diff);
+        if (info.getTimeTracker().Passed())
+        {
+            if (!m.UnloadGrid(x, y, false))
+            {
+                sLog.outDebug("Grid[%u,%u] for map %u differed unloading due to players or active objects nearby", x, y, m.GetId());
+                m.ResetGridExpiry(grid);
+            }
+        }
+    }
+}
+