diff --git a/AirFighter/AirFighter/AbstractMap.cs b/AirFighter/AirFighter/AbstractMap.cs
index 2c61fba..21a9d6c 100644
--- a/AirFighter/AirFighter/AbstractMap.cs
+++ b/AirFighter/AirFighter/AbstractMap.cs
@@ -78,9 +78,9 @@ namespace AirFighter
             {
                 return 2;
             }
-            for (int i = (int)(Top / _size_y); i <= (int)(Bottom / _size_y) + 1; i++)
+            for (int i = (int)(Top / _size_y); i <= (int)(Bottom / _size_y); i++)
             {
-                for (int j = (int)(Left / _size_x); j <= (int)(Right / _size_x) + 1; j++)
+                for (int j = (int)(Left / _size_x); j <= (int)(Right / _size_x); j++)
                 {
                     if (_map[i, j] == _barrier)
                         return 0;
@@ -106,22 +106,23 @@ namespace AirFighter
                 int flag = 0;
                 while (flag == 0)
                 {
-                    flag = CheckBarrier((int)Right, (int)Left, (int)Top, (int)Bottom);
+                   
                     y += (int)_size_y;
-                    Top += _size_y;
-                    Bottom += _size_y;
+                    Top += (int)_size_y;
+                    Bottom += (int)_size_y;
                     _drawningObject.SetObject(x, y, _width, _height);
+                    flag = CheckBarrier((int)Right, (int)Left, (int)Top, (int)Bottom);
                 }
                 if (flag == 1)
                 {
                     return true;
                 }
                 x += (int)_size_x;
-                Left += _size_x;
-                Right += _size_x;
+                Left += (int)_size_x;
+                Right += (int)_size_x;
                 y = (int)tempTop;
-                Top = tempTop;
-                Bottom = tempBottom; 
+                Top = (int)tempTop;
+                Bottom = (int)tempBottom; 
             }
             return false;
         }