Resources加载资源

注意：

• 资源必须放在Resources目录下
• 资源路径相对于Resources目录，且不加后缀名
• 即使是后缀不同的资源，也不要重名，否则加载的时候要指定类型。
• 路径使用正斜杠”/”
• Resources中的所有资源，都会被打到客户端中

void Start()
{
    GameObject go = GameObject.CreatePrimitive(PrimitiveType.Plane);
    Renderer rend = go.GetComponent<Renderer>();
    rend.material.mainTexture = Resources.Load("glass") as Texture;
}

Resources.Load(string path, Type systemTypeInstance);

void Start()
{
    // cube.mat 与 cube.prefab重名，所以加载时要指定类型
    Object objMat = Resources.Load("Materials\cube", typeof(Material));

    Object objGO = Resources.Load("Prefabs\cube", typeof(GameObject));

    GameObject go = Instantiate(objGO) as GameObject;
    go.getComponent<MeshRenderer>().material = objMat;
}

Resources.LoadAll

public static Object[] LoadAll(string path);
public static Object[] LoadAll(string path, Type systemTypeInstance);
public static T[] LoadAll(string path);

void Start()
{   
    GameObject[] arr = Resources.LoadAll<GameObject>("Prefabs");
    foreach(GameObject go in arr)
    {
        Instantiate(go);
    }
}

Resources.LoadAsync

public static ResourceRequest LoadAsync(string path);
public static ResourceRequest LoadAsync(string path, Type type);

void Start () {

    StartCoroutine(Load(new string[]{"Prefabs/Cube", "Prefabs/Sphere"}));
       

    // 使用协程异步加载
    IEnumerator Load(string[] arr)
    {
        foreach(string str in arr)
        {
            ResourceRequest rr = Resources.LoadAsync<GameObject>(str);
            yield return rr;

            Instantiate(rr.asset).name = rr.asset.name;
        }
    }
}

Resources.UnloadUnusedAssets