using System;
using UnityEngine;
using UnityEngine.UI;

namespace Leap.Unity
{
	public class DisconnectionNotice : MonoBehaviour
	{
		private void Start()
		{
			this.leap_controller_ = new Controller();
			this.SetAlpha(0f);
		}

		private void SetAlpha(float alpha)
		{
			base.GetComponent<Image>().color = Color.Lerp(Color.clear, this.onColor, alpha);
		}

		private bool IsConnected()
		{
			return this.leap_controller_.IsConnected;
		}

		private bool IsEmbedded()
		{
			DeviceList devices = this.leap_controller_.Devices;
			return devices.Count != 0 && devices[0].IsEmbedded;
		}

		private void Update()
		{
			if (this.embeddedReplacementImage != null && this.IsEmbedded())
			{
				base.GetComponent<Image>().sprite = this.embeddedReplacementImage;
			}
			if (this.IsConnected())
			{
				this.frames_disconnected_ = 0;
			}
			else
			{
				this.frames_disconnected_++;
			}
			if (this.frames_disconnected_ < this.waitFrames)
			{
				this.fadedIn -= Time.deltaTime / this.fadeOutTime;
			}
			else
			{
				this.fadedIn += Time.deltaTime / this.fadeInTime;
			}
			this.fadedIn = Mathf.Clamp(this.fadedIn, 0f, 1f);
			this.SetAlpha(this.fade.Evaluate(this.fadedIn));
		}

		public float fadeInTime = 1f;

		public float fadeOutTime = 1f;

		public AnimationCurve fade;

		public int waitFrames = 10;

		public Sprite embeddedReplacementImage;

		public Color onColor = Color.white;

		private Controller leap_controller_;

		private float fadedIn;

		private int frames_disconnected_;
	}
}