com.unity.services.samples.game-lobby/Assets/Scripts/GameLobby/UI/RateLimitVisibility.cs

using UnityEngine;

namespace LobbyRelaySample.UI
{
	/// <summary>
	/// Observes the Lobby request rate limits and changes the visibility of a UIPanelBase to suit.
	/// E.g. the refresh button on the Join menu should be inactive after a refresh for long enough to avoid the lobby query rate limit.
	/// </summary>
	public class RateLimitVisibility : MonoBehaviour
	{
		[SerializeField] UIPanelBase m_target;
		[SerializeField] float m_alphaWhenHidden = 0.5f;
		[SerializeField] LobbyManager.RequestType m_requestType;

		void Start()
		{
			GameManager.Instance.LobbyManager.GetRateLimit(m_requestType).onCooldownChange += UpdateVisibility;
		}

		void OnDestroy()
		{
			if (GameManager.Instance == null || GameManager.Instance.LobbyManager == null)
				return;
			GameManager.Instance.LobbyManager.GetRateLimit(m_requestType).onCooldownChange -= UpdateVisibility;
		}

		void UpdateVisibility(bool isCoolingDown)
		{
			if (isCoolingDown)
				m_target.Hide(m_alphaWhenHidden);
			else
				m_target.Show();
		}
	}
}