lib/boxcars/train/train_action.rb in boxcars-0.2.0 vs lib/boxcars/train/train_action.rb in boxcars-0.2.1

@@ -3,12 +3,26 @@
 module Boxcars
   # Train's action to take.
   class TrainAction
     attr_accessor :boxcar, :boxcar_input, :log
 
-    def initialize(boxcar: nil, boxcar_input: nil, log: nil)
-      @boxcar = boxcar
+    # record for a train action
+    # @param boxcar [String] The boxcar to run.
+    # @param log [String] The log of the action.
+    # @param boxcar_input [String] The input to the boxcar.
+    # @return [Boxcars::TrainAction] The train action.
+    def initialize(boxcar:, log:, boxcar_input: nil)
       @boxcar_input = boxcar_input
+      @boxcar = boxcar
       @log = log
+    end
+
+    # build a train action from a result
+    # @param result [Boxcars::Result] The result to build from.
+    # @param boxcar [String] The boxcar to run.
+    # @param log [String] The log of the action.
+    # @return [Boxcars::TrainAction] The train action.
+    def self.from_result(result:, boxcar:, log:)
+      new(boxcar: boxcar, boxcar_input: result.to_answer, log: log)
     end
   end
 end