var pos_x: int = floori(c.position.x / block_size)
var pos_y: int = floori(c.position.y / block_size)
cell_grid.append(Vector2i(pos_x, pos_y))
var pos_x: int = floori(c.position.x / block_size)
var pos_y: int = floori(c.position.y / block_size)
cell_grid.append(Vector2i(pos_x, pos_y))