using UnityEngine;

public class LightFlashing : MonoBehaviour
{
	public float time = 10f;

	[Space]
	public float minIntensity = -5f;

	public float maxIntensity = 5f;

	[Space]
	public float minTint = 0.1f;

	public float maxTint = 1f;

	[Space]
	public bool useSmooth;

	public float smoothTime = 5f;

	private float m_percent;

	private float m_lightAmount;

	private bool m_negative;

	[Space]
	public GameObject glowGO;

	public Color color = Color.white;

	private Light m_Light;

	private Material m_Material;

	private void Start()
	{
		m_Light = GetComponent<Light>();
		m_Material = glowGO.GetComponent<Renderer>().material;
		if (!useSmooth && m_Light != null)
		{
			InvokeRepeating("OneLightChange", time, time);
			color = m_Material.GetColor("_TintColor");
		}
	}

	private void Update()
	{
		if (useSmooth && m_Light != null)
		{
			m_lightAmount = Mathf.PingPong(Time.time * smoothTime, maxIntensity - minIntensity) + minIntensity;
			m_Light.intensity = m_lightAmount;
			CalculateMaterial();
		}
	}

	private void OneLightChange()
	{
		m_lightAmount = Mathf.PingPong(Time.time * time, maxIntensity - minIntensity) + minIntensity;
		m_Light.intensity = m_lightAmount;
		CalculateMaterial();
	}

	private void CalculateMaterial()
	{
		m_percent = Mathf.Abs(m_lightAmount) / (maxIntensity - minIntensity);
		m_negative = m_lightAmount < 0f;
		if (!m_negative)
		{
			color.a = m_percent * (maxTint - minTint) + minTint;
			m_Material.SetColor("_TintColor", color);
		}
	}
}