Class: FortressCreator

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# File 'app/models/fortress_creator.rb', line 25

def self.random_cell(mini_map_id)
  FortressCell.destroy_all(["mini_map_id = ?", mini_map_id])
  fortress_size = MiniMap.find(mini_map_id).size * Params::FORTRESS_SIZE_MULTIPLIER - 1
  fortress_x_cursor = 0
  cluster_side_num = (fortress_size / MINIMUM_SIZE).truncate
  cluster_side_length = (fortress_size / cluster_side_num).truncate
  modified_fortress_size = fortress_size - (fortress_size % cluster_side_num)
  fortress_cells = Array.new(modified_fortress_size).map!{ Array.new(modified_fortress_size, :blank) }
  areas = Array.new(cluster_side_num).map!{ Array.new(cluster_side_num, nil) }

  exit_directions = Params::DIRECTION_SYMBOLS.sample(rand(ENTRANCE_MAX) + 1)
  exit = Struct.new(:direction, :x, :y)
  exit_paths = Array.new
  exit_directions.each do |path|
    case path
    when :north
      exit_paths << exit.new(path, rand(cluster_side_num), 0)
    when :south
      exit_paths << exit.new(path, rand(cluster_side_num), cluster_side_num - 1)
    when :east
      exit_paths << exit.new(path, cluster_side_num - 1  , rand(cluster_side_num))
    when :west
      exit_paths << exit.new(path, 0               , rand(cluster_side_num))
    end
  end

  # create areas
  cluster_side_num.times do |y|
    cluster_side_num.times do |x|
      exit_direction = nil
      exit_paths.each do |exit_path|
        if exit_path[:x] == x and exit_path[:y] == y
          exit_direction = exit_path[:direction]
          break
        end
      end
      areas[x][y] = Area.new(x * cluster_side_length, y * cluster_side_length, cluster_side_length, exit_direction, fortress_cells)
    end
  end

  area_path_directions = [:east, :south]
  # create path between areas
  cluster_side_num.times do |y|
    cluster_side_num.times do |x|
      room_path_directions = Array.new
      # not east and south end 
      if x + 1 < cluster_side_num and y + 1 < cluster_side_num
        #room_path_directions = area_path_directions.sample(rand(area_path_directions.size) + 1)
        room_path_directions = area_path_directions.sample(area_path_directions.size)
      # east end and not south end 
      elsif x + 1 == cluster_side_num and y + 1 < cluster_side_num
        # if areas[x - 1][y].is_connected_east?
        #   room_path_directions = [:south].sample(rand([:south].size))
        # else
          room_path_directions = [:south]
        # end
      # not east end and south end 
      elsif x + 1 < cluster_side_num and y + 1 == cluster_side_num
        # if areas[x][y - 1].is_connected_south?
        #   room_path_directions = [:east].sample(rand([:east].size))
        # else
          room_path_directions = [:east]
        # end
      end

      room_path_directions.each do |room_path_direction|
        if room_path_direction == :east
          p "area(" + x.to_s + "," + y.to_s + "):east path"
          create_room_path(areas[x][y], areas[x + 1][y], :east, fortress_cells)
        elsif room_path_direction == :south
          p "area(" + x.to_s + "," + y.to_s + "):south path"
          create_room_path(areas[x][y], areas[x][y + 1], :south, fortress_cells)
        end
        areas[x][y].connected_directions << room_path_direction
      end
    end
  end

  # create fortress_cells
  modified_fortress_size.times do |y|
    modified_fortress_size.times do |x|
      fortress_cell = FortressCell.new
      fortress_cell.mini_map_id = mini_map_id
      fortress_cell.x = x
      fortress_cell.y = y
      fortress_cell.symbol = fortress_cells[x][y]
      fortress_cell.save
    end
  end
end