问题
I'm getting this odd error...
/Users/gideon/Documents/ca_ruby/rubytactoe/lib/player.rb:13:in `gets': Is a directory - spec (Errno::EISDIR)
player_spec.rb:
require_relative '../spec_helper'
# the universe is vast and infinite...it contains a game.... but no players
describe "tic tac toe game" do
context "the player class" do
it "must have a human player X"do
player = Player.new("X")
STDOUT.should_receive(:puts).with("human move")
# player.stub(:gets).and_return("")
player.move_human("X")
end
it "must have a computer player O" do
player = Player.new("O")
STDOUT.should_receive(:puts).with("computer move") #what I expect to get back
player.stub(:gets).and_return("") #what I am sending
player.move_computer("O") #the actual call
end
end
end
player.rb
# require_relative 'drawgrid'
class Player
attr_reader :boardpiece # i exist so game can read me
def initialize(letter)
@boardpiece = letter
end
def move_human(game)
puts "human move..."
@move = gets.chomp
end
def move_computer(game)
puts "computer move..."
# all possible third moves as 'O' (computer)
@human_winmoves = {
:wm01 => {:a1=>"X", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"X", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm02 => {:a1=>" ", :a2=>"X", :a3=>" ", :b1=>" ", :b2=>"X", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm03 => {:a1=>" ", :a2=>" ", :a3=>"X", :b1=>" ", :b2=>"X", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm04 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>"X", :b2=>"X", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm05 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"X", :b3=>"X", :c1=>" ", :c2=>" ", :c3=>" "},
:wm06 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"X", :b3=>" ", :c1=>"X", :c2=>" ", :c3=>" "},
:wm07 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"X", :b3=>" ", :c1=>" ", :c2=>"X", :c3=>" "},
:wm08 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"X", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>"X"},
#check those corners
:wm09 => {:a1=>"X", :a2=>"X", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm10 => {:a1=>"X", :a2=>" ", :a3=>" ", :b1=>"X", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm11 => {:a1=>" ", :a2=>"X", :a3=>"X", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm12 => {:a1=>" ", :a2=>" ", :a3=>"X", :b1=>" ", :b2=>" ", :b3=>"X", :c1=>" ", :c2=>" ", :c3=>" "},
:wm13 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>"X", :c1=>" ", :c2=>" ", :c3=>"X"},
:wm14 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>"X", :c3=>"X"},
:wm15 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"X", :c2=>"X", :c3=>" "},
:wm16 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>"X", :b2=>" ", :b3=>" ", :c1=>"X", :c2=>" ", :c3=>" "},
#check opposites
:wm17 => {:a1=>"X", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"X", :c2=>" ", :c3=>" "},
:wm18 => {:a1=>" ", :a2=>"X", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>"X", :c3=>" "},
:wm19 => {:a1=>" ", :a2=>" ", :a3=>"X", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>"X"},
:wm20 => {:a1=>"X", :a2=>" ", :a3=>"X", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm21 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>"X", :b2=>" ", :b3=>"X", :c1=>" ", :c2=>" ", :c3=>" "},
:wm22 => {:a1=>"X", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>"X"},
:wm23 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"X", :c2=>" ", :c3=>"X"},
:wm24 => {:a1=>" ", :a2=>" ", :a3=>"X", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"X", :c2=>" ", :c3=>" "}
}
@ai_winmoves = {
:wm01 => {:a1=>"O", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"O", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm02 => {:a1=>" ", :a2=>"O", :a3=>" ", :b1=>" ", :b2=>"O", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm03 => {:a1=>" ", :a2=>" ", :a3=>"O", :b1=>" ", :b2=>"O", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm04 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>"O", :b2=>"O", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm05 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"O", :b3=>"O", :c1=>" ", :c2=>" ", :c3=>" "},
:wm06 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"O", :b3=>" ", :c1=>"O", :c2=>" ", :c3=>" "},
:wm07 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"O", :b3=>" ", :c1=>" ", :c2=>"O", :c3=>" "},
:wm08 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>"O", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>"O"},
#check those corners
:wm09 => {:a1=>"O", :a2=>"O", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm10 => {:a1=>"O", :a2=>" ", :a3=>" ", :b1=>"O", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm11 => {:a1=>" ", :a2=>"O", :a3=>"O", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm12 => {:a1=>" ", :a2=>" ", :a3=>"O", :b1=>" ", :b2=>" ", :b3=>"O", :c1=>" ", :c2=>" ", :c3=>" "},
:wm13 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>"O", :c1=>" ", :c2=>" ", :c3=>"O"},
:wm14 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>"O", :c3=>"O"},
:wm15 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"O", :c2=>"O", :c3=>" "},
:wm16 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>"O", :b2=>" ", :b3=>" ", :c1=>"O", :c2=>" ", :c3=>" "},
#check opposites
:wm17 => {:a1=>"O", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"O", :c2=>" ", :c3=>" "},
:wm18 => {:a1=>" ", :a2=>"O", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>"O", :c3=>" "},
:wm19 => {:a1=>" ", :a2=>" ", :a3=>"O", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>"O"},
:wm20 => {:a1=>"O", :a2=>" ", :a3=>"O", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>" "},
:wm21 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>"O", :b2=>" ", :b3=>"O", :c1=>" ", :c2=>" ", :c3=>" "},
:wm22 => {:a1=>"O", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>" ", :c2=>" ", :c3=>"O"},
:wm23 => {:a1=>" ", :a2=>" ", :a3=>" ", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"O", :c2=>" ", :c3=>"O"},
:wm24 => {:a1=>" ", :a2=>" ", :a3=>"O", :b1=>" ", :b2=>" ", :b3=>" ", :c1=>"O", :c2=>" ", :c3=>" "}
}
# match current answers located in @thegrid with possible @anskey array, iterate for each item
@anskey={
:wm01=>"c3",:wm02=>"c2",:wm03=>"c1",:wm04=>"b3",:wm05=>"b1",:wm06=>"a3",:wm07=>"a2",:wm08=>"a1",
:wm09=>"a3",:wm10=>"c1",:wm11=>"a1",:wm12=>"c3",:wm13=>"c3",:wm14=>"c1",:wm15=>"c3",:wm16=>"a1",
:wm17=>"b1",:wm18=>"b2",:wm19=>"b3",:wm20=>"a2",:wm21=>"b2",:wm22=>"b2",:wm23=>"c2",:wm24=>"b2"
}
#
# scan board for available move locations
# select all values where value is O for thegrid and copy those into keys_with_o
# compare result to ai_winmoves
# keys_with_o = $thegrid.select{ |k, v| v == "O" }.keys
# matching_moves = @ai_winmoves.select{ |k, v| v.select{ |k, v| v == "O" }.keys == keys_with_o }
# puts "matching_moves: "
# puts matching_moves
# select all values where value is X for thegrid and copy those into keys_with_x
keys_with_x = $thegrid.select{ |k, v| v == "X" }.keys
block_moves = @ai_winmoves.select{ |k, v| v == "X" }.keys
#DEBUG puts "keys_with_x: "
#DEBUG puts keys_with_x.to_s
# human_keys = v.select{ |k, v| v == "X"}.keys
@intersection = block_moves & keys_with_x
@thing = [] # initialize thing array
@human_winmoves.each do |k,v| # for test - go threw each win moves.
#get common elements between two arrays..recall from above that v contains a hash
human_keys = v.select{ |k, v| v == "X"}.keys
@intersection = human_keys & keys_with_x
if $thegrid[:b2] == " " #AND center spot is empty
ai_spot = "b2"
puts "take center "+ai_spot
@move = ai_spot.to_sym #must return this answer as a symbol
return @move
elsif @intersection.length >= 2
#DEBUG puts "where does a intersect b"
#DEBUG puts @intersection.to_s
#DEBUG puts "answer key:"
#DEBUG puts k
@thing << k # adds per iteration
#DEBUG puts "@thing array"
#DEBUG puts @thing.to_s # for test - find each intersection
#DEBUG puts "@thing array first key"
#DEBUG puts @thing.last.to_s
#DEBUG puts "value"
#DEBUG puts @anskey[@thing.last]
#DEBUG puts "symbol?"
answer = @anskey[@thing.last].to_sym
#DEBUG puts answer.is_a?(Symbol)
@move = answer # for test - at last intersection value found...return it as move value
end
end # END @human_winmoves.each do |k,v|
return @move # had this guy in the wrong place
end
end
Can anyone point me in the right direction?
回答1:
When you call gets.chomp you're actually referring to Kernel#gets, which expects a file to read from. If you are passing command line arguments, they'll be interpreted as these input files Kernel#gets expects. If one of the args is a directory path, then you'll get the error you mentioned.
You want to use IO#gets instead. This will work as expected:
def move_human(game)
puts "human move..."
@move = STDIN.gets.chomp
end
回答2:
You are probably giving a directory name as command line argument.
Kernel#gets reads from files given as command line arguments. You are probably giving a directory name instead of a file name at the command line.
If there's no argument at the command line, it reads from STDIN.
来源：https://stackoverflow.com/questions/12292658/what-is-gets-is-a-directory-error-message