class GameMap {
  has Int $.x_dim;
  has Int $.y_dim;
  has Array[Int] @.map;


  method generate_new_empty_map() {
    my Array[Int] @t_map = Array[Int].new,;
    for 0..$.x_dim -> $x_i {
      for 0..$.y_dim -> $y_i {
        print "$x_i - $y_i\n";
        @t_map[$x_i][$y_i] = 0;
      }
    }
    @!map = @t_map;
  }
}

# ERROR: 0 - 0
# 0 - 1
# 0 - 2
# 0 - 3
# 0 - 4
# 0 - 5
# 1 - 0
# Type check failed in assignment to @t_map[1]; expected Array[Int] but got Array ($[])
#   in block  at puzzle.p6 line 17
#   in method generate_new_empty_map at puzzle.p6 line 14
#  in block <unit> at puzzle.p6 line 90