// ***********************************************************************
// Assembly         : Game
// Author           : Kimch
// Created          : 2020-09-02
// Description      :
// Last Modified By : 
// Last Modified On : 
// ***********************************************************************
// <copyright file= "Ef_uv_loop_simple" company="Kimch"></copyright>
// <summary></summary>
// ***********************************************************************
using UnityEngine;

namespace G
{
	public class Ef_uv_loop_simple : MonoBehaviour
	{
		public int uvAnimationTileX = 4;

		public int uvAnimationTileY = 4;

		public int framesPerSecond = 20;

		public bool loop;

		public bool instance_material;

		public bool timetune;

		private int _index;

		private int _lastIndex = -1;

		private float _startTime;

		private int _lastFrame;

		private Vector2 _size;

		private Renderer _renderer;
		private Material _material;

		private void Awake()
		{
			_renderer = this.GetComponent<Renderer>();
			if (!_renderer)
				_renderer = this.GetComponentInChildren<Renderer>();
		}

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

#if UNITY_EDITOR
			_material = _renderer.material;
#else
			_material = instance_material ? _renderer.material : _renderer.sharedMaterial;
#endif
		}

		private void Update()
		{
			if (!_renderer.enabled)
			{
				return;
			}
			if (!timetune)
			{
				_startTime += Time.deltaTime;
			}
			else
			{
				_startTime += Time.unscaledDeltaTime;
			}
			_index = (int)(_startTime * framesPerSecond);
			if (loop)
			{
				_index %= _lastFrame;
			}

			if (_index != _lastIndex)
			{
				if (_index >= _lastFrame)
				{
					_startTime = 0f;
					_lastIndex = -1;
					this.gameObject.SetActive(false);
				}
				int _uIndex = _index % uvAnimationTileX;
				int _vIndex = _index / uvAnimationTileX;

				var _offset = Vector2.right * _uIndex * _size.x + Vector2.up * (1f - _size.y - _vIndex * _size.y);
				_material.mainTextureOffset = _offset;
				_material.mainTextureScale = _size;
				_lastIndex = _index;
			}
		}
	}
}