Implement the basics of GameOfLife universe

1 files changed, 15 insertions, 6 deletions

diff --git a/CLI/ruby/lib/game_of_life/universe.rb b/CLI/ruby/lib/game_of_life/universe.rb
index b92386c..ccaf0cd 100644
--- a/CLI/ruby/lib/game_of_life/universe.rb
+++ b/CLI/ruby/lib/game_of_life/universe.rb
@@ -5,22 +5,31 @@ require "forwardable"
 module GameOfLife
   class Universe
     extend Forwardable
-    delegate :[] => :@universe
+    delegate :[] => :@current
 
-    attr_accessor :universe
-
-    # Initialize the empty initial universe 2D array
+    # Initialize the empty initial universe 2D plane (circular arrays)
     # @param width [Integer] the width of the universe array
     # @param height [Integer] the height of the universe array
     def initialize(width:, height:)
-      @universe = Array.new(height) { Array.new(width) }
+      @current = GameOfLife::Plane.new(height) { GameOfLife::Plane.new(width) }
+      @future  = GameOfLife::Plane.new(height) { GameOfLife::Plane.new(width) }
     end
 
     # Representation of the game of life universe
     # @return [String] representing the current state
     # @see ::GameOfLife::Cell#to_s
     def to_s
-      @universe.map(&:join).join("\n")
+      @current.map(&:join).join("\n")
+    end
+
+    def evolve!
+      @current.each do |row|
+        row.each do |cell|
+          @future[cell.pos_y][cell.pos_x] = cell.evolve!(@current)
+          # @future[cell.pos_y][cell.pos_x] = cell.send(:living_neighbors, @current)
+        end
+      end
+      @current = @future
     end
   end
 end