Question

我有一个使用metadepth（.mdepth）创建的模型，其背后的逻辑是用eol编写的。我有一个Contents类型的类，该类的元素名为Cell类型的位置，并被称为fire的类继承。基本上，我想将Fire的新实例的位置设置为特定单元格的内容，但没有任何问题，而且我不知道问题出在哪里，因为我可以访问所需的Fire，并且可以打印所有它的内容，但我只是不能更改它们。

深度：

Node Cell : Place {

      number: int; //To know which cell this is, used for placement and outputs

      //can only move in 4 directions: N, E, S, W and contains cells or walls W: 0, N: 1, E: 2, S: 3
      SouthCell: Adjacent;
      EastCell: Adjacent;
      NorthCell: Adjacent;
      WestCell: Adjacent;

      contents: Contents; //the Contents of the cell, standard empty?????
      doors: Door[0..*] {unique}; //when navigating between cells you need to know where the exit is
      //room: Room; //to know in wich cell the room is located */
    }
Node Contents {
  position: Cell; // each Contents belongs to a cell
}

Node Fire : Contents {
      name: String = "Fire";
}

EOL：

operation Cell burnCell(){
    var fire = Fire.createInstance();
    fire.position = self;

    ("Fire "+fire.name+" created, position: "+fire.position).println();//position is staying empty

    self.contents := fire; //assignment not working

    ("burn cell:"+ self.number + " contents: " + self.contents).println();//contents isn't updating

}

如何将元素分配给具有我所做的类类型的对象

0 个答案: