fix(game): block generation

src/py2048/grid.py

@@ -20,20 +20,21 @@ class Grid(pygame.sprite.Group):
         for block in blocks:
             block.move(direction)
 
+        self.generate_block()
+
     def generate_block(self, amount: int = 1, *pos: tuple[int, int]) -> None:
         """Generate `amount` number of blocks."""
         if pos:
             for coords in pos:
                 self.add(Block(coords[0] * Config.BLOCK_SIZE, coords[1] * Config.BLOCK_SIZE))
             return
-
         for _ in range(amount):
             while True:
                 x = random.randint(0, 3) * Config.BLOCK_SIZE  # random column position
                 y = random.randint(0, 3) * Config.BLOCK_SIZE  # random row position
                 block = Block(x, y)
 
-                colliding_blocks = self.spritecollide(block, self, False)  # check collision
+                colliding_blocks = pygame.sprite.spritecollide(block, self, False)  # check collision
 
                 if not colliding_blocks:
                     self.add(block)