using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Rendering.Universal;
using UnityEngine.Rendering;

public class ItemRenderer : MonoBehaviour
{
    public static ItemRenderer Instance { get; private set; }
    private Shader unlitShader;
    private void Awake()
    {
        Instance = this;
        //unlitShader = Shader.Find("Universal Render Pipeline/Unlit");
    }


    //this used to go onto an object in the UI prefab, with a camera. the camera culling mask was only set to `Item`
    //unused. this is very bad. pre-generate the sprites in editor before releasing as i've done now. much better. //thomas09
    //public Sprite renderItem(InventoryItemStats item)
    //{
    //    Client.Instance.UnderWaterEffectEnabled = false;

    //    Material mat;
    //    GameObject g = Instantiate(item.gameObject);
    //    foreach (Renderer rend in g.GetComponentsInChildren<MeshRenderer>())
    //    {
    //        mat = rend.material;
    //        mat.shader = unlitShader;
    //    }

    //    g.transform.position = new Vector3(item.inventoryOffsetX, item.inventoryOffsetY, item.inventoryZoom);
    //    g.transform.localScale = new Vector3(item.inventoryScale, item.inventoryScale, item.inventoryScale);
    //    g.transform.localRotation = Quaternion.Euler(item.inventoryRotationX, item.inventoryRotationY, item.inventoryRotationZ);

    //    g.layer = LayerMask.NameToLayer("Item");
    //    foreach (Transform child in g.transform)
    //    {
    //        child.gameObject.layer = LayerMask.NameToLayer("Item");
    //        foreach (Transform grandChild in child.transform)
    //        {
    //            grandChild.gameObject.layer = LayerMask.NameToLayer("Item");
    //        }
    //    }
    //    Camera cam = GetComponent<Camera>();

    //    RenderTexture currentRT = RenderTexture.active;
    //    RenderTexture.active = cam.targetTexture;
    //    GL.Clear(true, true, Color.clear);

    //    cam.Render();

    //    Texture2D image = new Texture2D(cam.targetTexture.width, cam.targetTexture.height);
    //    image.ReadPixels(new Rect(0, 0, cam.targetTexture.width, cam.targetTexture.height), 0, 0);

    //    image.Apply();
    //    g.SetActive(false);
    //    DestroyImmediate(g);

    //    RenderTexture.active = currentRT;

    //    Rect imageSize = new Rect(0.0f, 0.0f, image.width, image.height);
    //    Vector2 imagePivot = new Vector2(0.5f, 0.5f);
    //    Sprite itemSprite = Sprite.Create(image, imageSize, imagePivot, pixelsPerUnit: 100, extrude: 0, SpriteMeshType.FullRect);

    //    if (Client.Instance.CheckIfPlayerIsUnderWater()) { Client.Instance.UnderWaterEffectEnabled = true; }
    //    return itemSprite;
    //}

}