Update visibility system

  *visibility updates and ai relocations processed simultaneously for each grid
  *these operations now are not synchronized for different grids
  *some changes into structure of visibility notifiers

--HG--
branch : trunk

1 files changed, 5 insertions, 0 deletions

diff --git a/src/shared/Timer.h b/src/shared/Timer.h
index 643f68dba84..3e0a369b655 100644
--- a/src/shared/Timer.h
+++ b/src/shared/Timer.h
@@ -201,6 +201,11 @@ struct PeriodicTimer
             i_period = period;
         }
 
+        // Tracker interface
+        void TUpdate(int32 diff) { i_expireTime -= diff; }
+        bool TPassed() const { return i_expireTime <= 0; }
+        void TReset(int32 diff, int32 period)  { i_expireTime += period > diff ? period : diff; }
+
     private:
 
         int32 i_period;