GHZDaPing/Assets/NaiNiu/SetWebGLText.cs

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Networking;

[ExecuteInEditMode]
public class SetWebGLText : MonoBehaviour
{
    public static SetWebGLText Instance;
    public static Font webglfont;
    // Start is called before the first frame update
    void Awake()
    {
        Instance = this;
        StartCoroutine(LoadAB());
    }
    IEnumerator LoadAB()
    {
        string url = Application.streamingAssetsPath + "/simkai";
#if UNITY_EDITOR
        url = "https://wx-model-1317557471.cos.ap-shanghai.myqcloud.com/simkai";
#endif
        using (UnityWebRequest req = UnityWebRequestAssetBundle.GetAssetBundle(url))//
        {
            yield return req.SendWebRequest();
            if (req.error == null)
            {
                AssetBundle ab = (req.downloadHandler as DownloadHandlerAssetBundle).assetBundle;
                webglfont = ab.LoadAsset<Font>("simkai");
            }
            else
            {
                Debug.Log("���س���" + req.responseCode + "," + req.error);
            }
        }
    }
    Queue<callback> dl = new Queue<callback>();
    public void GetTexture(string url,Action<Texture2D> msg)
    {
        callback cb = new callback();
        cb.url = url;
        cb.msg = msg;
        dl.Enqueue(cb);
    }
    bool isload;
    private void Update()
    {
        if(dl.Count>0&&!isload)
        {
            isload = true;
            callback cb = dl.Dequeue();
            StartCoroutine(DownloadImage(cb));
        }
    }

    Dictionary<string, Texture2D> stlist = new Dictionary<string, Texture2D>();

    // Э�̷����������첽����ͼƬ
    IEnumerator DownloadImage(callback url)
    {
        if(!stlist.ContainsKey(url.url))
        {
            // ʹ��UnityWebRequestTexture����ȡͼƬ����
            UnityWebRequest m_webrequest = UnityWebRequestTexture.GetTexture(url.url);
            yield return m_webrequest.SendWebRequest();

            // ��������Ƿ�ɹ�
            if (m_webrequest.result != UnityWebRequest.Result.Success)
            {
                isload = false;
                // ��ӡ������Ϣ
                Debug.LogError("Failed to download image");
            }
            else
            {


                // �����ش�������ȡ����
                Texture2D tex = ((DownloadHandlerTexture)m_webrequest.downloadHandler).texture;
                stlist.Add(url.url, tex);
                url.msg.Invoke(tex);
                // ���������õ�RawImage�������ʾ
                //  GetComponent<RawImage>().texture = tex;

                // �����Ҫ����Sprite����ʾ��Image����У�����ʹ�����´���
                // Sprite createSprite = Sprite.Create(tex, new Rect(0, 0, tex.width, tex.height), new Vector2(0.5f, 0.5f));
                // GetComponent<Image>().sprite = createSprite;
                isload = false;
            }

        }
        else
        {
            yield return null;
            url.msg.Invoke(stlist[url.url]);
            isload = false;
        }
    }

    public class callback
    {
        public string url;
        public Action<Texture2D> msg;
    }
}