style: fix inconsistent spacing & add newline at end of files

src/field.py

@@ -9,6 +9,7 @@ class Field:
             self.tiles.add(Tile(x, 'grass', self))
         self.tractor = Tractor(self)
 
+
     def draw(self, surface):
         self.tiles.draw(surface)
-        self.tractor.draw(surface)
+        self.tractor.draw(surface)

src/main.py

@@ -24,4 +24,4 @@ if __name__ == "__main__":
         field.draw(screen) 
 
         pygame.display.flip()
-        pygame.time.Clock().tick(10)
+        pygame.time.Clock().tick(10)

src/tile.py

@@ -24,14 +24,14 @@ class Tile(pygame.sprite.Sprite):
         self.rect = self.image.get_rect()
         self.rect.topleft = (x * TILE_SIZE, y * TILE_SIZE)
     
+
     def draw(self, surface):
         self.tiles.draw(surface)
 
+
     def set_type(self, type):
         self.type = type
         # if self.type == 'grass':
         #     self.image = pygame.image.load("images/grass.png").convert()
         self.image = pygame.image.load("images/grass.png").convert()
         self.image = pygame.transform.scale(self.image, (TILE_SIZE, TILE_SIZE))
-
-    

src/tractor.py

@@ -8,9 +8,11 @@ class Tractor(pygame.sprite.Sprite):
     def __init__(self, field):
         super().__init__
         self.field = field
+
         self.image = pygame.image.load('images/tractor.png').convert_alpha()
         self.image = pygame.transform.scale(self.image, (TILE_SIZE, TILE_SIZE))
         self.rect = self.image.get_rect()
+
         x, y = 0, 0
         self.rect.topleft = (x, y)