Merge branch 'master' of 192.168.0.254:BattleSever/WSHCommon

Common/CommonAI/ZoneClient/ZoneObject.Spell.cs

@@ -130,7 +130,7 @@ namespace CommonAI.ZoneClient
             float radius = 0;
             if (mAddEvent != null)
             {
-                if (mAddEvent.LaunchData.FromUnitBody && (Sender is ZoneUnit))
+                if (mAddEvent.LaunchData.FromUnitBody && Sender != null && (Sender is ZoneUnit))
                 {
                     radius = (Sender as ZoneUnit).Info.LaunchSpellRadius;
                 }
@@ -358,7 +358,7 @@ namespace CommonAI.ZoneClient
                         {
                             MathVector.movePolar(mLocalPos, mStartDirection, speed_distance);
                         }
-                        else if (PassTimeMS > Info.BoomerangFlyTime + Info.BoomerangHangtime)
+                        else if (Sender != null && PassTimeMS > Info.BoomerangFlyTime + Info.BoomerangHangtime)
                         {
                             PreFlyTo(Sender.X, Sender.Y, mSpeed * 1.4f, intervalMS);
                         }