// ***********************************************************************
// Assembly         : Unity
// Author           : Kimch
// Created          : 2019-06-17
// Description      :
// Last Modified By : 
// Last Modified On : 
// ***********************************************************************
// <copyright file= "Ef_uv_loop" company="Kunpo"></copyright>
// <summary></summary>
// ***********************************************************************
using UnityEngine;

namespace G
{
	/// <summary>
	/// uv 动画
	/// </summary>
	public class Ef_uv_loop : MonoBehaviour
	{
		public int uvAnimationTileX = 4;

		public int uvAnimationTileY = 4;

		public int framesPerSecond = 20;

		public int impact = 1;

		public bool loop;

		private int _index;

		private int _lastIndex = -1;

		private float _startTime;

		private int _lastFrame;

		private Vector2 _size;

		private Renderer _myrenderer;

		private Collider _mycollider;

		MaterialPropertyBlock _propertyBlock;

		private void Awake()
		{
			_propertyBlock = new MaterialPropertyBlock();

			_myrenderer = this.GetComponentInChildren<Renderer>();
			_mycollider = this.GetComponent<Collider>();
			if (_mycollider)
			{
				_mycollider.isTrigger = true;
				_mycollider.enabled = false;
			}
		}

		private void Start()
		{
			_startTime = 0f;
			_lastFrame = uvAnimationTileX * uvAnimationTileY;
			_size = new Vector2(1f / uvAnimationTileX, 1f / uvAnimationTileY);
		}

		private void Update()
		{
			if (!_myrenderer.enabled)
			{
				return;
			}

			_startTime += Time.deltaTime;
			_index = (int)(_startTime * framesPerSecond);
			if (loop)
			{
				_index %= _lastFrame;
			}

			if (_index != _lastIndex)
			{
				if (_index >= _lastFrame)
				{
					_startTime = 0f;
					_lastIndex = -1;

					_mycollider.enabled = false;
					this.gameObject.SetActive(false);
				}
				else if (_index >= impact)
				{
					_mycollider.enabled = true;
				}

				int uIndex = _index % uvAnimationTileX;
				int vIndex = _index / uvAnimationTileX;
				_propertyBlock.SetVector("_MainTex_ST", new Vector4(_size.x, _size.y, uIndex * _size.x, 1f - _size.y - vIndex * _size.y));
				_myrenderer.SetPropertyBlock(_propertyBlock);
				_lastIndex = _index;
			}
		}
	}
}