[XP] NPCS THAT ONLY COLLIDE WITH CERTAIN ELEMENTS: IS IT POSSIBLE?

class Game_Character
  alias enemy_collision_only_passable? passable?
  def passable?(x, y, d)
    original_value = enemy_collision_only_passable?
    if original_value == true
      new_x = x + (d == 6 ? 1 : d == 4 ? -1 : 0)
      new_y = y + (d == 2 ? 1 : d == 8 ? -1 : 0)
      # Loop all events
      for event in $game_map.events.values
        # If event coordinates are consistent with move destination
        if event.x == new_x and event.y == new_y
          # If through is ON
          if event.through
            # If self is event and is an enemy
            if self != $game_player and @character_name.size >= 5 and @character_name[0..4] == "Enemy"
              # check if event at the destination is another enemy
              if event.character_name.size >= 5 and event.character_name[0..4] == "Enemy"
                # impassable
                return false
              end
            end
            # With self as the player and an enemy in the destination
            if event.character_name != "" and event.character_name.size >= 5 and event.character_name[0..4] == "Enemy"
              # impassable
              return false
            end
          end
        end
      end
      # If player coordinates are consistent with move destination
      if $game_player.x == new_x and $game_player.y == new_y
        # If this event is an enemy
        if @character_name != "" and @character_name.size >= 5 and @character_name[0..4] == "Enemy"
          # impassable
          return false
        end
      end
    end
    return original_value
  end
end