diff --git a/astar.py b/astar.py
index 5d90a4dc6..075fdd16f 100644
--- a/astar.py
+++ b/astar.py
@@ -99,21 +99,19 @@ def manhattan(pos0, pos1):
 
 
 def main():
-    rotation  = ["left", "up", "right", "down"]  
     run = True
     clock = pygame.time.Clock()
     board = Board()
     board.load_images()
     
-    start_row, start_col = 1, 1
-    end_row, end_col = 5, 0
+    start_row, start_col = 0,0
+    end_row, end_col = 9,9
     tractor = Tractor(start_row, start_col)  
     board.set_grass(start_row, start_col)
     board.set_grass(end_row, end_col)
    
     grid = [[Node(x, y) for y in range(rows)] for x in range(cols)]
     
-    
     start = grid[start_row][start_col]
     end = grid[end_row][end_col]
     
@@ -121,8 +119,6 @@ def main():
     
 
     while run:
-        
-        
         clock.tick(fps)
    
         for event in pygame.event.get():
@@ -134,13 +130,29 @@ def main():
             continue
 
         next_node = path.pop(0) if path else start_node
+        dx = next_node.x - tractor.col
+        dy = next_node.y - tractor.row
         tractor.row, tractor.col = next_node.y, next_node.x
-        
-        
-        #rotation
-        
-
 
+       
+        if   dx > 0:
+            tractor.direction = "right"
+        elif dx < 0:
+            tractor.direction = "left"
+        elif dy > 0:
+            tractor.direction = "down"
+        elif dy < 0:
+            tractor.direction = "up"
+            
+        if board.is_weed(tractor.col, tractor.row ):
+                    board.set_grass(tractor.col, tractor.row )
+                  
+        elif board.is_dirt(tractor.col, tractor.row ):
+                    board.set_soil(tractor.col, tractor.row )
+                    
+        elif board.is_soil(tractor.col, tractor.row ):
+                    board.set_carrot(tractor.col, tractor.row )
+                     
 
         board.draw_cubes(WIN)
         tractor.draw(WIN)
diff --git a/board.py b/board.py
index 779cef97a..606859bc1 100644
--- a/board.py
+++ b/board.py
@@ -1,7 +1,7 @@
 import pygame
 from constant import size, rows, cols
 import random
-
+from tractor import Tractor
 
 class Board:
     def __init__(self):
@@ -55,7 +55,7 @@ class Board:
     def load_costs(self):
             self.costs = {
                 0: 100,  #kamien
-                1: 2,  #chwasty
+                1:2,     #chwast
                 2: 1,   #po trawie
                 3: 1,   #po trawie
                 4: 1,   #po trawie
@@ -73,7 +73,8 @@ class Board:
         return self.costs.get(tile_type, 1)  
             
     def is_rock(self, row, col):
-        return self.board[row][col] == 0
+        tractor = Tractor(row, col)
+        return self.board[row][col] == 0 and not (row == tractor.row and col == tractor.col)
 
     def is_weed(self,row,col):
         return self.board[row][col] == 1
diff --git a/constant.py b/constant.py
index c64d704e1..c2d989b0d 100644
--- a/constant.py
+++ b/constant.py
@@ -1,6 +1,6 @@
 import pygame
 width, height = 640, 640
-rows, cols = 8, 8
+rows, cols = 10, 10
 size = width//cols
 yellow = (216,178,0)
 green= (103,178,0)