using UnityEngine;

public class LightningLinkFxController : LinkFxController
{
    public float interval = 1f;

    // 最大帧数
    public int maxCount = 8;
    private Transform _child;
    private int _currentCount = -1;
    private float _nextFrame;

    protected override bool isBillboard
    {
        get { return true; }
    }

    protected override MeshRenderer RegisterMeshMaterials()
    {
        _child = transform.Find("effect");
        materialRecords = new LinkFxMaterialRecord[1];
        var meshRenderer0 = _child.GetComponent<MeshRenderer>();
        materialRecords[0] = new LinkFxMaterialRecord(meshRenderer0.material, new[] {"_MainTex"});
        return meshRenderer0;
    }

    //private void OnEnable()
    //{
    //    EventListenerSystem.Instance.AddMessageOne(Games.Events.MessageID.PostMainCameraMove, OnCameraMove);
    //}
//
    //private void OnDisable()
    //{
    //    EventListenerSystem.Instance.RemoveMessageOne(Games.Events.MessageID.PostMainCameraMove, OnCameraMove);
    //}

    // Uv动画
    public override bool TryUpdateLink()
    {
        if (Time.time > _nextFrame)
        {
            _currentCount++;
            if (_currentCount >= maxCount)
                _currentCount = 0;
            var offsetV = (float) _currentCount / maxCount;
            _nextFrame = Time.time + interval;
            for (var i = 0; i < materialRecords.Length; i++)
                materialRecords[i].material
                    .SetTextureOffset(materialRecords[i].textures[i].propertyName, new Vector2(0f, offsetV));
            //if (SceneLogic.CameraController != null && SceneLogic.CameraController.MainCamera != null)
            //{
            //    var cameraTrans = SceneLogic.CameraController.MainCamera.transform;
            //    var z = cameraTrans.position - _child.position;
            //    if (z != Vector3.zero)
            //    {
            //        var y = Vector3.Cross(z, transform.right);
            //        if (y != Vector3.zero)
            //        {
            //            z = Vector3.Cross(transform.right, y);
            //            _child.rotation = Quaternion.LookRotation(z, y);
            //        }
            //    }
            //}
        }

        return base.TryUpdateLink();
    }
}