#if !(UNITY_DASHBOARD_WIDGET || UNITY_WEBPLAYER || UNITY_WII || UNITY_WIIU || UNITY_NACL || UNITY_FLASH || UNITY_BLACKBERRY) // Disable under unsupported platforms.
//////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2019 Audiokinetic Inc. / All Rights Reserved
//
//////////////////////////////////////////////////////////////////////

/// @brief This manager tracks AkRoomPortals and the rooms that they connect (front and back room).
/// @details At the end of the frame, the AkRoomPortals which rooms might have changed are updated and sent to Spatial Audio.
public class AkRoomManager
{
	private readonly System.Collections.Generic.List<AkRoomPortal> m_Portals =
		new System.Collections.Generic.List<AkRoomPortal>();

	private readonly System.Collections.Generic.List<AkRoomPortal> m_PortalsToUpdate =
		new System.Collections.Generic.List<AkRoomPortal>();

	private readonly System.Collections.Generic.List<AkSurfaceReflector> m_Reflectors =
		new System.Collections.Generic.List<AkSurfaceReflector>();

	private readonly System.Collections.Generic.List<AkSurfaceReflector> m_ReflectorsToUpdate =
		new System.Collections.Generic.List<AkSurfaceReflector>();

	private static AkRoomManager m_Instance;

	public static void Init()
	{
		if (m_Instance == null)
			m_Instance = new AkRoomManager();
	}

	public static void Terminate()
	{
		if (m_Instance != null)
			m_Instance = null;
	}

	public static void RegisterPortal(AkRoomPortal portal)
	{
		if (m_Instance != null)
		{
			if (!m_Instance.m_Portals.Contains(portal))
			{
				m_Instance.m_Portals.Add(portal);
			}
			if (!m_Instance.m_PortalsToUpdate.Contains(portal))
			{
				m_Instance.m_PortalsToUpdate.Add(portal);
			}
		}
	}

	public static void UnregisterPortal(AkRoomPortal portal)
	{
		if (m_Instance != null)
		{
			m_Instance.m_Portals.Remove(portal);
			m_Instance.m_PortalsToUpdate.Remove(portal);
		}
	}

	public static void RegisterReflector(AkSurfaceReflector reflector)
	{
		if (m_Instance != null)
		{
			if (!m_Instance.m_Reflectors.Contains(reflector))
			{
				m_Instance.m_Reflectors.Add(reflector);
			}
			if (!m_Instance.m_ReflectorsToUpdate.Contains(reflector))
			{
				m_Instance.m_ReflectorsToUpdate.Add(reflector);
			}
		}
	}

	public static void UnregisterReflector(AkSurfaceReflector reflector)
	{
		if (m_Instance != null)
		{
			m_Instance.m_Reflectors.Remove(reflector);
			m_Instance.m_ReflectorsToUpdate.Remove(reflector);
		}
	}

	public static void RegisterPortalUpdate(AkRoomPortal portal)
	{
		if (m_Instance != null)
		{
			if (m_Instance.m_Portals.Contains(portal) && !m_Instance.m_PortalsToUpdate.Contains(portal))
			{
				m_Instance.m_PortalsToUpdate.Add(portal);
			}
		}
	}

	public static void RegisterRoomUpdate(AkRoom room)
	{
		if (m_Instance != null)
		{
			for (var i = 0; i < m_Instance.m_Portals.Count; ++i)
			{
				var portal = m_Instance.m_Portals[i];
				if (!m_Instance.m_PortalsToUpdate.Contains(portal) &&
					(room == portal.frontRoom || room == portal.backRoom || portal.Overlaps(room)))
				{
					m_Instance.m_PortalsToUpdate.Add(portal);
				}
			}
			for (var i = 0; i < m_Instance.m_Reflectors.Count; ++i)
			{
				var reflector = m_Instance.m_Reflectors[i];
				if (!m_Instance.m_ReflectorsToUpdate.Contains(reflector) && (reflector.AssociatedRoom == room))
				{
					m_Instance.m_ReflectorsToUpdate.Add(reflector);
				}
			}
		}
	}

	public static void Update()
	{
		if (m_Instance != null)
		{
			for (var i = 0; i < m_Instance.m_PortalsToUpdate.Count; ++i)
			{
				m_Instance.m_PortalsToUpdate[i].UpdateRoomPortal();
			}
			m_Instance.m_PortalsToUpdate.Clear();
			for (var i = 0; i < m_Instance.m_ReflectorsToUpdate.Count; ++i)
			{
				m_Instance.m_ReflectorsToUpdate[i].UpdateGeometry();
			}
			m_Instance.m_ReflectorsToUpdate.Clear();
		}
	}
}
#endif // #if ! (UNITY_DASHBOARD_WIDGET || UNITY_WEBPLAYER || UNITY_WII || UNITY_WIIU || UNITY_NACL || UNITY_FLASH || UNITY_BLACKBERRY) // Disable under unsupported platforms.