using System;
using InfinityCode.uPano;
using InfinityCode.uPano.Renderers;
using UnityEngine;

public class FadeCubeFaces : MonoBehaviour
{
    [Range(0, 1)]
    public float progress;
    public Texture2D top;
    public Texture2D front;
    public Texture2D left;
    public Texture2D back;
    public Texture2D right;
    public Texture2D bottom;

    private CubeFacesPanoRenderer panoRenderer;
    private Material[] materials;

    private float _progress;


    private void OnRendererStart()
    {
        MeshRenderer mr = panoRenderer.meshGameObject.GetComponent<MeshRenderer>();
        materials = mr.sharedMaterials;

        materials[0].SetTexture("_SecondTexture", top);
        materials[1].SetTexture("_SecondTexture", front);
        materials[2].SetTexture("_SecondTexture", left);
        materials[3].SetTexture("_SecondTexture", back);
        materials[4].SetTexture("_SecondTexture", right);
        materials[5].SetTexture("_SecondTexture", bottom);

        UpdateProgress();
    }

    private void Start()
    {
        _progress = progress;
        panoRenderer = GetComponent<CubeFacesPanoRenderer>();
        panoRenderer.OnStart += OnRendererStart;
    }

    private void Update()
    {
        if (Math.Abs(_progress - progress) > float.Epsilon) UpdateProgress();
    }

    private void UpdateProgress()
    {
        _progress = progress;
        foreach (Material m in materials) m.SetFloat("_progress", progress);
    }
}