roulette system :)

app/controllers/pets_controller.rb

@@ -10,9 +10,9 @@ class PetsController < ApplicationController
   }
 
   def load
-  
+    if params[:name] == '!'
-    # TODO: include point value with JSON once contributions implemented
+      redirect_to roulette_path
-    
+    else
       raise Pet::PetNotFound unless params[:name]
       @pet = Pet.load(params[:name])
       if user_signed_in?
@@ -35,6 +35,7 @@ class PetsController < ApplicationController
         end
       end
     end
+  end
   
   protected
   

app/controllers/roulettes_controller.rb

@@ -0,0 +1,6 @@
+class RoulettesController < ApplicationController
+  def new
+    @roulette = Roulette.new
+    redirect_to wardrobe_path(:anchor => @roulette.to_query)
+  end
+end

app/models/item.rb

@@ -71,6 +71,10 @@ class Item < ActiveRecord::Base
     zones
   end
   
+  def affected_zones
+    restricted_zones + occupied_zones
+  end
+  
   def species_support_ids
     @species_support_ids_array ||= read_attribute('species_support_ids').split(',').map(&:to_i) rescue nil
   end

app/models/parent_swf_asset_relationship.rb

@@ -1,6 +1,8 @@
 class ParentSwfAssetRelationship < ActiveRecord::Base
   set_table_name 'parents_swf_assets'
   
+  belongs_to :item, :foreign_key => 'parent_id'
+  
   belongs_to :biology_asset, :class_name => 'SwfAsset', :foreign_key => 'swf_asset_id', :conditions => {:type => 'biology'}
   belongs_to :object_asset, :class_name => 'SwfAsset', :foreign_key => 'swf_asset_id', :conditions => {:type => 'object'}
   
@@ -8,16 +10,12 @@ class ParentSwfAssetRelationship < ActiveRecord::Base
     self.swf_asset_type == 'biology' ? self.biology_asset : self.object_asset
   end
   
-  def item
-    parent
-  end
-  
   def item=(replacement)
     self.parent_id = replacement.id
   end
   
   def pet_state
-    parent
+    PetState.find(parent_id)
   end
   
   def pet_state=(replacement)

app/models/roulette.rb

@@ -0,0 +1,69 @@
+class Roulette
+  attr_accessor :pet_type, :pet_state, :item_ids
+  
+  def initialize
+    # Choose a random pet type, and get a random state
+    @pet_type = PetType.offset(rand(PetType.count)).first # random pet type
+    states = @pet_type.pet_states
+    @pet_state = states.offset(rand(states.count)).first
+    fitting_swf_assets = SwfAsset.object_assets.fitting_body_id(@pet_type.body_id)
+    
+    # Keep going until we have all zones occupied. Find a random SWF asset for
+    # a given unoccupied zone, then look up its item to see if it affects or
+    # restricts zones we've already used. If so, try again. If not, add it to
+    # the list.
+    unoccupied_zone_ids = Zone.all.map(&:id)
+    swf_asset_count_by_zone_id = fitting_swf_assets.count(:group => :zone_id)
+    @item_ids = []
+    while !unoccupied_zone_ids.empty?
+      zone_id = unoccupied_zone_ids.slice!(rand(unoccupied_zone_ids.count))
+      if swf_asset_count = swf_asset_count_by_zone_id[zone_id]
+        used_swf_asset_ids = []
+        first_asset = true
+        found_item = false
+        while !found_item && used_swf_asset_ids.size < swf_asset_count
+          base = fitting_swf_assets
+          unless first_asset
+            first_asset = false
+            base = base.where(fitting_swf_assets.arel_table[:id].not_in(used_swf_asset_ids))
+          end
+          swf_asset = base.
+            where(:zone_id => zone_id).
+            offset(rand(swf_asset_count)).
+            includes(:object_asset_relationships => :item).
+            first
+          used_swf_asset_ids.push(swf_asset.id)
+          swf_asset.object_asset_relationships.each do |rel|
+            item = rel.item
+            pass = true
+            item.affected_zones.each do |zone|
+              checked_zone_id = zone.id
+              next if checked_zone_id == zone_id
+              if i = unoccupied_zone_ids.find_index(zone_id)
+                unoccupied_zone_ids.slice! zone_id
+              else
+                # This zone is already occupied, so this item is no good.
+                pass = false
+              end
+            end
+            if pass
+              found_item = true
+              @item_ids << item.id
+              break
+            end
+          end
+          break if found_item
+        end
+      end
+    end
+  end
+  
+  def to_query
+    {
+      :color => @pet_type.color_id,
+      :species => @pet_type.species_id,
+      :state => @pet_state.id,
+      :objects => @item_ids
+    }.to_query
+  end
+end

app/models/static_resource.rb

@@ -8,4 +8,8 @@ class StaticResource
   def self.find(id)
     @objects[id-1]
   end
+  
+  def self.count
+    @objects.size
+  end
 end

config/routes.rb

@@ -10,6 +10,8 @@ OpenneoImpressItems::Application.routes.draw do |map|
   match '/pet_states/:pet_state_id/swf_assets.json' => 'swf_assets#index', :as => :pet_state_swf_assets
   match '/species/:species_id/color/:color_id/pet_type.json' => 'pet_types#show'
   
+  match '/roulette' => 'roulettes#new', :as => :roulette
+  
   resources :contributions, :only => [:index]
   resources :items, :only => [:index, :show] do
     collection do