// down.js
// OK 09 2023
(function () {
  /*global adventurejs A*/
  "use strict";

  /**
   * @augments {adventurejs.Verb}
   * @class down
   * @ajsnode game.dictionary.verbs.down
   * @ajsconstruct MyGame.createVerb({ "name": "down", [...] });
   * @ajsconstructedby adventurejs.Dictionary#createVerb
   * @hideconstructor
   * @ajsinstanceof Verb
   * @ajsnavheading DirectionVerbs
   * @summary Verb meaning travel down.
   * @tutorial Scripting_VerbSubscriptions
   * @tutorial Verbs_VerbAnatomy
   * @tutorial Verbs_VerbProcess
   * @tutorial Verbs_ModifyVerbs
   * @tutorial Verbs_WriteVerbs
   * @classdesc
   * <pre class="display border outline">
   * <span class="input">&gt; down</span>
   * You slide down through the dark hole and quickly get eaten by a grue.
   * </pre>
   * <p>
   * Direction verb: go <strong>down</strong>.
   * To learn about {@link adventurejs.Exit|Exits},
   * see <a href="/doc/GetStarted_CreateAnExit.html">Create an Exit</a>.
   * </p>
   * @ajsverbphases doBeforeTry, doAfterTry, doBeforeSuccess, doAfterSuccess
   */
  A.Preverbs.down = {
    name: "down",
    is_direction: true,
    is_spatial_direction: true,
    synonyms: ["down", "d"],
    type: { direction: true },

    /**
     * @ajsverbstructures
     * @memberof down
     */
    accepts_structures: ["verb"],

    doTry: function () {
      var player = this.game.getPlayer();
      var nest_asset = player.getNestAsset();
      var input = this.game.getInput();
      var msg = "";

      if (player.isNested()) {
        if (
          nest_asset.is.climbable &&
          player.position.y > nest_asset.position.y
        ) {
          this.game.debug(
            `F1137 | ${
              this.name
            }.js | player is nested ${player.getNestPreposition()} ${player.getNestId()}, doVerb climb`
          );
          input.input_verb = "climb";
          input.setAsset(1, nest_asset);
          input.setPreposition(1, "down");
          input.setStructure("verb preposition noun");
          this.game.dictionary.doVerb("climb");
          return null;
        } // ordinary nest
        else {
          this.game.debug(
            `F1136 | ${
              this.name
            }.js | infer 'get off ${player.getNestId()}, doVerb go off`
          );
          input.setVerb("go");
          input.setAsset(1, nest_asset);
          input.setPreposition(1, "off");
          input.setStructure("verb preposition noun");
          this.game.dictionary.doVerb("go");
          return null;
        }
      } // player.isNested()
    },

    doSuccess: function () {
      this.game.tryTravel(this.name);
      return true;
    },
  };
})();