using System;
using UnityEngine;

public class WeatherOverlay : MonoBehaviour
{
	protected virtual void Awake()
	{
		if (this.parentCamera == null)
		{
			if (base.transform.parent != null)
			{
				this.parentCamera = base.transform.parent.GetComponent<Camera>();
			}
			if (this.parentCamera == null)
			{
				UnityEngine.Debug.LogError("WeatherOverlay: Failed to find parentCamera, please assign it manually");
			}
		}
		this._cachedRenderer = base.GetComponent<Renderer>();
		this._cachedRenderer.sortingOrder = this.sortingOrder;
		this._cachedRenderer.enabled = false;
		base.transform.localPosition = new Vector3(0f, 0f, base.transform.localPosition.z);
	}

	protected virtual void Update()
	{
		float num = this.parentCamera.orthographicSize * 2f;
		base.transform.localScale = new Vector3(num * this.parentCamera.aspect, num, 1f);
	}

	public virtual float Brightness
	{
		get
		{
			return this._brightness;
		}
		set
		{
			float num = Mathf.Clamp(value, -1f, 1f);
			if (this._brightness != num)
			{
				this._brightness = num;
				if (this._brightness > 0f)
				{
					this._cachedRenderer.material = this.lightningMaterial;
					this._cachedRenderer.enabled = true;
					this.lightningMaterial.color = new Color(1f, 1f, 1f, this._brightness * this.brightnessMult);
				}
				else if (this._brightness < 0f)
				{
					this._cachedRenderer.material = this.darkMaterial;
					this._cachedRenderer.enabled = true;
					this.darkMaterial.color = new Color(0f, 0f, 0f, -this._brightness * this.brightnessMult);
				}
				else
				{
					this._cachedRenderer.enabled = false;
				}
			}
		}
	}

	public Camera parentCamera;

	public int sortingOrder = 200;

	public float brightnessMult = 0.2f;

	public Material darkMaterial;

	public Material lightningMaterial;

	private float _brightness;

	private Renderer _cachedRenderer;
}