From: Philip Rhoades <phil@...>
Date: 2010-04-10T19:56:12+09:00
Subject: Re: Ruby-warrior : Teaching AI concepts with Ruby

Guys,


On 2010-04-10 18:11, Ryan Davis wrote:
>
> On Apr 9, 2010, at 23:38 , Philip Rhoades wrote:
>
>> People,
>>
>>
>> On 2010-04-10 05:35, H- 16 wrote:
>>> Bill Kelly wrote: Aldric Giacomoni wrote:
>>>> I think this project doesn't get enough attention :-)
>>>> http://github.com/ryanb/ruby-warrior
>>>
>>> Oh, definately, this is probably the best way to teach
>>> programing.
>>
>>
>> I tried cloning the latest git but adding
>>
>> warrior.rest!
>>
>> to player.rb and running gave:
>>
> ...
>> ./rubywarrior/p-beginner/player.rb:3:in `play_turn': undefined
>> method `rest!' for #<RubyWarrior::Turn:0x7f5f0ced1a58 @action=nil,
>> @senses={}>  (NoMethodError) from
>> /usr/lib/ruby/gems/1.8/gems/ruby-warrior/bin/../lib/ruby_warrior/units/warrior.rb:12:in
>> `play_turn'
 >>
>>... What have I missed?
>
> I dunno as I haven't played with the code yet, but you're calling
> rest! on a Turn, not on the Warrior. Make sure your warrior variable
> (or method call result?) is what you think it is.
>
> Make sure you still have something like:
>
> class Player def play_turn(warrior)


I just used something simple above because the example stuff gave me the 
same problem - that is, using:

class Player
   def play_turn(warrior)
     if warrior.feel.enemy?
       warrior.attack!
     else
       warrior.walk!
     end
   end
end

results in:

Welcome to Ruby Warrior
[1] p - beginner - level 1 - score 0
[2] New Profile
Choose profile by typing the number: 1
Starting Level 1
- turn 1 -
  --------
|@      >|
  --------
./rubywarrior/p-beginner/player.rb:3:in `play_turn': undefined method 
`feel' for #<RubyWarrior::Turn:0x7f4c176e0680 @action=nil, @senses={}> 
(NoMethodError)
         from 
/usr/lib/ruby/gems/1.8/gems/ruby-warrior/bin/../lib/ruby_warrior/units/warrior.rb:12:in 
`play_turn'
         from 
/usr/lib/ruby/gems/1.8/gems/ruby-warrior/bin/../lib/ruby_warrior/units/base.rb:72:in 
`prepare_turn'
         from 
/usr/lib/ruby/gems/1.8/gems/ruby-warrior/bin/../lib/ruby_warrior/level.rb:50:in 
`play'
         from 
/usr/lib/ruby/gems/1.8/gems/ruby-warrior/bin/../lib/ruby_warrior/level.rb:50:in 
`each'
         from 
/usr/lib/ruby/gems/1.8/gems/ruby-warrior/bin/../lib/ruby_warrior/level.rb:50:in 
`play'
         from 
/usr/lib/ruby/gems/1.8/gems/ruby-warrior/bin/../lib/ruby_warrior/level.rb:46:in 
`times'
         from 
/usr/lib/ruby/gems/1.8/gems/ruby-warrior/bin/../lib/ruby_warrior/level.rb:46:in 
`play'
         from 
/usr/lib/ruby/gems/1.8/gems/ruby-warrior/bin/../lib/ruby_warrior/game.rb:72:in 
`play_current_level'
         from 
/usr/lib/ruby/gems/1.8/gems/ruby-warrior/bin/../lib/ruby_warrior/game.rb:63:in 
`play_normal_mode'
         from 
/usr/lib/ruby/gems/1.8/gems/ruby-warrior/bin/../lib/ruby_warrior/game.rb:23:in 
`start'
         from 
/usr/lib/ruby/gems/1.8/gems/ruby-warrior/bin/../lib/ruby_warrior/runner.rb:17:in 
`run'
         from /usr/lib/ruby/gems/1.8/gems/ruby-warrior/bin/rubywarrior:5

Not something I was expecting from something that is supposed to help 
teach Ruby . .

Thanks,

Phil.
-- 
Philip Rhoades

GPO Box 3411
Sydney NSW	2001
Australia
E-mail:  phil@pricom.com.au