Elevation Fix (MV)

//=============================================================================
// ElevationFix.js
//=============================================================================

/*:
 * @plugindesc Allow interaction with events only on same level
 * @author Shaz
 *
 * @help This plugin has no plugin commands
 *
 * Add <elevation> as a comment to an event page, and you will only be
 * able to interact with that event when you are at the same height
 * (you will not be able to interact with it if there is a cliff edge
 * between you and the event, for example).
 */


(function() {

  var _Game_Event_start = Game_Event.prototype.start;
  Game_Event.prototype.start = function() {
    var list = this.list();
    if (list && list.length > 1) {
      if (list.filter(function(cmd) {
        return (cmd.code === 108 || cmd.code === 408) && cmd.parameters[0].match(/<elevation>/);
      }).length > 0) {
        var px = $gamePlayer.x;
        var py = $gamePlayer.y;
        var x = this.x;
        var y = this.y;
        var d = px < x ? 4 : px > x ? 6 : py < y ? 8 : py > y ? 2 : px === x && py === y ? 10 : 0;
        if (!this.isMapPassable(x, y, d)) { return; }
      }
      _Game_Event_start.call(this);
    }
  }
})();