using System.Collections.Generic;
using Photon.VR.Player;
using UnityEngine;

namespace BlockSpace.Gamemodes
{
	[DisallowMultipleComponent]
	public sealed class GamemodeZoneManager : MonoBehaviour
	{
		private readonly List<GamemodeZone> zones = new List<GamemodeZone>();

		public static GamemodeZoneManager Instance { get; private set; }

		public GamemodeZone CurrentZone { get; private set; }

		private void Awake()
		{
			if (Instance != null && Instance != this)
			{
				Object.Destroy(base.gameObject);
			}
			else
			{
				Instance = this;
			}
		}

		private void OnDestroy()
		{
			if (Instance == this)
			{
				Instance = null;
			}
		}

		private void Update()
		{
			RefreshZonesFromPlayerPositions();
		}

		internal void RegisterZone(GamemodeZone zone)
		{
			if (!(zone == null) && !zones.Contains(zone))
			{
				zones.Add(zone);
			}
		}

		internal void UnregisterZone(GamemodeZone zone)
		{
			if (!(zone == null))
			{
				zones.Remove(zone);
				if (CurrentZone == zone)
				{
					CurrentZone = null;
				}
			}
		}

		private void RefreshZonesFromPlayerPositions()
		{
			if (zones.Count == 0)
			{
				CurrentZone = null;
				return;
			}
			PhotonVRPlayer[] array = Object.FindObjectsByType<PhotonVRPlayer>(FindObjectsInactive.Include);
			PhotonVRPlayer photonVRPlayer = null;
			foreach (PhotonVRPlayer photonVRPlayer2 in array)
			{
				if (!(photonVRPlayer2 == null) && photonVRPlayer2.photonView != null && photonVRPlayer2.photonView.IsMine)
				{
					photonVRPlayer = photonVRPlayer2;
				}
			}
			CurrentZone = null;
			Vector3 worldPosition = ((photonVRPlayer != null) ? GamemodeZone.GetPlayerZonePosition(photonVRPlayer) : Vector3.zero);
			for (int j = 0; j < zones.Count; j++)
			{
				GamemodeZone gamemodeZone = zones[j];
				if (!(gamemodeZone == null))
				{
					gamemodeZone.RefreshPlayersInside(array);
					if (photonVRPlayer != null && CurrentZone == null && gamemodeZone.ContainsWorldPosition(worldPosition))
					{
						CurrentZone = gamemodeZone;
					}
				}
			}
		}
	}
}