examples: annotate examples

[nit.git] / lib / ai / examples / puzzle.nit

diff --git a/lib/ai/examples/puzzle.nit b/lib/ai/examples/puzzle.nit
index 83c4b4c..400af03 100644 (file)
--- a/lib/ai/examples/puzzle.nit
+++ b/lib/ai/examples/puzzle.nit
@@ -41,6 +41,8 @@
 #
 # The shortest plan, in two steps, is to move *up* the tile under the hole (e),
 # then to move *left* the tile after the hole (h).
+module puzzle is example
+
 import ai::search
 
 # The state (`S`) is a square grid, modeled as a one-dimensional array of Tile.
@@ -103,7 +105,7 @@ class PuzzleProblem
                if x < width-1 then res.add(1)
                if y >= 1 then res.add(-width)
                if y < width-1 then res.add(width)
-               return res.as_random.take_all
+               return res
        end
 
        # Return the state where the tile at hole+action has moved