class OddmanoutController < RecognizeController
#	def get_folder_list
#	%w{Fruits Flowers Vegetables}
#	end
	def get_folders
		folders=get_folder_list
		p=session[:picfolder] ||= folders[rand(folders.size)]
		folders-=[p]
		o=session[:oddfolder] ||= folders[rand(folders.size)]
		[p,o]
	end
#start_choices returns session[:nitems] -1 picture
#names from the picfolder and 1 picture from
#oddfolder, both random, whose position in the array
#returned is randomized. also sets session[:answer]
	def start_choices
		n=get_nitems-1
		p,o=get_folders
		choices= random_pics (p,n)
		session[:answer]= random_pics(o,1).first
		choices.insert(
			rand(choices.size+1),
			session[:answer])
		lognewproblem("among #{choices.join(',')
				}, which is not from #{session[:picfolder]}",session[:answer])
		choices
	end
#puts picture folder names into #session picfolder and oddfolder, 
#if their names are mentioned at the end of the url separated by a -
	def process_params
		p=params[:id]
#		 logger.info "id: #{p}"
		if p=~/(\w+)-(\w+)/
			session[:picfolder]=$1
			session[:oddfolder]=$2
		end
	end
end