gardner.rb: Refactor

- Remove functionality that doesn't belong in this module:
  - Move printing of trunk to the dialogue class
  - Remove tree generation entirely; let other modules generate trees as
  they need them
- Style formatting

lib/sapling/gardner.rb

@@ -2,11 +2,10 @@ require 'yaml'
 
 # Gardner is the module for working with a dialogue tree file
 module Gardner
-
-  # Parse the branch
+  # Parse the tree array into an array of numbered branches, and ordered leaves.
   #
   # @param tree [Array] The dialogue tree
-  # @return [Array] The array of options on the branch.
+  # @return [Array] An array of numbered branches, with numbered leaves
   def self.prune_branches(tree)
     branches = { 0 => { "desc" => "Thanks for using Sapling!" } }
     tree.each do |b|
@@ -16,13 +15,12 @@ module Gardner
     end
 
     return branches
-
   end
 
-  # Parse the options
+  # Parse the leaves of a branch into a numbered hash of options.
   #
   # @param leaves [Array] The option of leaf hashes
-  # @return [Hash] A has of options
+  # @return [Hash] A numbered hash of options
   def self.prune_leaves(leaves)
     x = 1
     options = {}
@@ -35,34 +33,15 @@ module Gardner
     end
 
     return options
-
   end
 
-  # Parse the trunk
-  # The trunk is like the introduction to the tree.
+  # Parse the trunk of the tree.
   #
   # @param tree [Hash] The entire tree
-  # @return [Hash] The tree without the trunk
+  # @return [Array] The trunk, and the remainder of the tree
   def self.prune_trunk(tree)
     trunk = tree.shift
-    40.times { print "-" }
-    puts "\n#{trunk["trunk"]}"
-    40.times { print "-" }
-    puts "\n"
-
-    return tree
 
+    return [trunk,tree]
   end
-
-  # The main method for Sapling. From here, the tree is grown.
-  #
-  # @param tree [File] The dialogue tree file
-  # @return [Hash] The final, constructed data set
-  def self.grow(tree)
-      trunk = Gardner.prune_trunk(tree)
-      branches = Gardner.prune_branches(trunk)
-
-      return branches
-  end
-
 end