Ahoy!
Battleship… I blasted through all other specs, but I cannot get #attack to pass for the life of me.
Please, SOS!
The error:
1) BattleshipGame#attack marks the board at the specified position
Failure/Error: game.attack([1, 1])
TypeError:
no implicit conversion from nil to integer
# ./lib/board.rb:14:in `[]'
# ./lib/board.rb:14:in `[]'
# ./lib/board.rb:19:in `[]='
# ./lib/battleship.rb:15:in `attack'
# ./spec/battleship_spec.rb:24:in `block (3 levels) in <top (required)>'
Using the syntactic sugar from the Board class, my #attack method is:
def attack(pos)
board[pos] = :x
end
It should be that easy, right?!! 
The amount of time wasted on a single spec is a bit discouraging.
The most annoying part is that when I test it out in pry, the method works and it places the x on the board!!!
Ok. I got it working, but I’m still confused.
I needed to use .grid when creating the instance in BattleshipGame class.
def initialize(player, board=nil)
@player = player
@board = Board.new(board).grid <<<<<<< why do I need .grid????
end
For tic-tac-toe I didn’t use .grid… I used @board = Board.new and that was fine.
Why am I needing to use .grid here?
Did you create a []= method in the board class? It should look like the code below.
def []=(pos, mark)
row, col = pos
@grid[row][col] = mark
end
I did indeed create the []= method in my board class. If you look at the screenshot I posted, the method was working in pry but wouldn’t pass the spec.
I’m not sure where I went wrong… I think I had my Board#initialize set up incorrectly. I was so confused I ended up basically rewriting/starting from scratch.
All working now (and no longer need .grid), but definitely wasted a lot of time on an issue that is still very unclear.
Thanks for your reply!
