当我编辑一个实例的变量值时，另一个实例的变量值也发生了变化[关闭]

Question

我有两个类，“Unit”和“Tile”。这两个都有一个“位置”类，就像这样......

class Unit
{
    // add the stats like name , health, speed and strength.
    public Stats stats = new Stats();

    // add the location coordinates
    public Location location = new Location();
}

public class Tile
{
    // add the stats like name , health, speed and strength.
    public Stats stats = new Stats();

    // represents the ability to move out of tile via either {north,east,south,west};
    public List<bool> movementDirections = new List<bool>() { true, true, true, true };

    // represents the Coorinates to access the tile.
    public Location location = new Location();
}

好的，所以...您会注意到我在两者上也都有“统计”类。 'Unit' 和 'Tile' 都是新实例，并且都有新的 'Stats' 和 'Location' 实例。

我的问题是我有一小段代码改变了单元的位置并且它的行为很奇怪。

        static void move(Tile tile,int[] coordsChange,Unit unit)
    {
        // Unit player is defined earlier in the script as a new Unit().
        player.stats.name = "Hendry";// just to check. this doesn't change the tile name
        player.location.x = player.location.x + coordsChange[0]; // these both change the tile location also.
        player.location.y = player.location.y + coordsChange[1];
    }

因为一切都是一个新的实例，玩家统计数据的变化并没有改变瓷砖统计数据，我不知道为什么，但玩家的位置发生了变化。我也测试了反之亦然，同样的情况发生了……就好像位置类是链接的，但统计类却没有，尽管它们没有区别。

顺便说一句，这里是那些类。

public class Location
{
    private int _x = 0;
    private int _y = 0;

    public int x
    {
        get { return _x; }
        set { _x = value;}
    }

    public int y
    {
        get { return _y;}
        set { _y = value; }
    }
}

public class Stats
{
    public string name = "default";
    public string className = "default";
    public int health = 10;
    public int strength = 5;
    public int defence = 5;
    public int speed = 5;
    public int intelligence = 5;
}

任何想法都将不胜感激。

谢谢 佐里利亚

Answer 1

封装的重要性：

class Unit
{
    // add the stats like name , health, speed and strength.
    public Stats stats { get; private set; }
    // add the location coordinates
    public Location location { get; private set; }

    public Unit()
    {
        location = new Location();
        stats = new Stats();
    }

}

Tile 也一样。

更新

我的理论是，在调用move 之前，您已经分配了代码：

player.location = tile.location;

或

tile.location = player.location;

使用私有设置器将location 设为属性，将导致此类代码的编译器错误。

更新

public class Location
{
    ...
    your code
    ...

    public void Assign(Location aSource)
    {
        x = aSource.x;
        y = aSource.y;
    }
}

tile.location.Assign(player.location);