itch.io

start_at = room
game_settings {
   add_standard_prepositions = false
   experimental_new_parser = true
}
locations {
   room : location "You are in a room.";
}
objects {
   twine     : object "a ball of twine" at = "room" msg = "aaa";
   text_book : object "a text book" at = "room";
}
on_command {
   : if (is_present "twine" && noun1_is "ball") {
      : mask {
         : set_noun1 text="twine";
      }
   }
   : match "_ _" {
      : mask {
         : print {("^n^verb = " + original "verb")}
         : print {("^n^preposition1 = " + original "preposition1")}
         : print {("^n^noun1 = " + original "noun1")}
         : print {("^n^preposition2 = " + original "preposition2")}
         : print {("^n^noun2 = " + original "noun2" + "^m^")}
      }
   }
  : if (is_present "text_book") {
      : match "read _" {
         : if (preposition1_is "about") {
            : if (noun1_is "ball") {
               : print "It says you only need rubber to make a ball.";
               : done;
            }
            : print "There's no topic on that.";
            : done;
         }
      }
   }
}
vocabulary {
   : experimental_replace { text = "ball of twine" with = "twine" }
   
   : preposition / aliases = [about]
   : noun / aliases = [ball]
}