2D数组已初始化,但所有项都为null C#

Question

所以在Unity中我的this.tilesX和this.tilesY都是公共变量,它们都有一个值.它们设置在Unity的检查员中.数组初始化后的debug.log读出"10 x tiles 10 y tiles".所以我知道这两个变量都已初始化.

但是,当我去检查this.tileLayer1 2D数组的元素是否为null时,它返回debug.log打印出"tile is null".我完全迷失了.下面是初始化数组的函数以及我的自定义Tile类的构造函数.

void Start () {

    this.tileLayer1 = new Tile[this.tilesY, this.tilesX];

    Debug.Log(tilesX + " x tiles " + tilesY + " y tiles");

    for (int y = 0; y < this.tileLayer1.GetLength(0); y++)
    {
        for (int x = 0; x < this.tileLayer1.GetLength(1); x++)
        {
            if (this.tileLayer1[x, y] == null)
            {
                Debug.Log("tile is null");
            }
        }
    }

    this.BuildMesh();
}

这是新Tile代码调用的构造函数.

public Tile () {
    this.totalVerts = this.vertX * this.vertY;

    this.vertices = new Vector3[totalVerts];
    this.normals = new Vector3[totalVerts];
    this.uv = new Vector2[totalVerts];

    this.triangles = new int[6];
}

我不认为构造函数与它有很大关系,但谁知道呢.

Answer 1

那是因为this.tileLayer1 = new Tile[this.tilesY, this.tilesX];只用null值初始化数组.

您需要初始化每个值

for (int y = 0; y < this.tileLayer1.GetLength(0); y++) {
    for (int x = 0; x < this.tileLayer1.GetLength(1); x++) {
        this.tileLayer1[x, y] = new Title();
    }
}