Mercurial > maze-src
annotate distance_grid.rb @ 0:1eef88068f9f tip
initial commit of maze game source
| author | ferencd |
|---|---|
| date | Sun, 15 Sep 2019 11:46:47 +0200 |
| parents | |
| children |
| rev | line source |
|---|---|
| ferencd@0 | 1 #--- |
| ferencd@0 | 2 # Excerpted from "Mazes for Programmers", |
| ferencd@0 | 3 # published by The Pragmatic Bookshelf. |
| ferencd@0 | 4 # Copyrights apply to this code. It may not be used to create training material, |
| ferencd@0 | 5 # courses, books, articles, and the like. Contact us if you are in doubt. |
| ferencd@0 | 6 # We make no guarantees that this code is fit for any purpose. |
| ferencd@0 | 7 # Visit http://www.pragmaticprogrammer.com/titles/jbmaze for more book information. |
| ferencd@0 | 8 #--- |
| ferencd@0 | 9 require 'grid' |
| ferencd@0 | 10 |
| ferencd@0 | 11 class DistanceGrid < Grid |
| ferencd@0 | 12 attr_accessor :distances |
| ferencd@0 | 13 |
| ferencd@0 | 14 def contents_of(cell) |
| ferencd@0 | 15 if distances && distances[cell] |
| ferencd@0 | 16 distances[cell].to_s |
| ferencd@0 | 17 else |
| ferencd@0 | 18 super |
| ferencd@0 | 19 end |
| ferencd@0 | 20 end |
| ferencd@0 | 21 end |